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Mercury 250 (3.0L EFI) (1B504989 & Up) Outboard Motor Parts Diagram & Catalog – Free PDF Download

by JLM Marine 30 Apr 2025 0 Comments
Mercury 250 (3.0L EFI) Outboard Motor Parts Diagram & Catalog – Free PDF Download

Accessories

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Below is the parts list for Mercury 250 (3.0L EFI) Accessories:

Mercury 250 (3.0L EFI) Accessories Diagram
Position No. Part Name OEM Number Supersedes
0 FLUSH COUPLING 22-852400 56-820386A55
0 DECK FILL KIT, Oil 15969A3
0 DIODE ASSEMBLY (DUAL ENGINE) 812497A2
0 FLUSHING ATTACHMENT 44357Q2
0 HOSE ASSEMBLY, Fuel 32-858610A31 32-858610A10, 32-16789A18
0 HOSE ASSEMBLY, Fuel (12 Feet) Comment: (NO FITTINGS) 32-877683Q12 32-858623Q12, 32-858623A12, 32-822379A12, 32-819380A12, FA599752, FS409752, 32-819380A 3, F216752, FA409752, F289752, FA178752, FA216752, FA284752, FA289752, FS409952 (NO FITTINGS)
0 SWITCH/LANYARD KIT 87-19674Q2
0 MERCATHODE KIT 88334A2
0 HOSE EXTENSION KIT 41729A3
0 NOT SOLD SEPARATE, Rigging Hose Kit Comment: (SEE PARTS BULLETIN 99-4) NSS
0 RESERVOIR KIT, Oil 15943A1
0 TRIM REDUCER KIT 858915A1

Attenuator/Flywheel Cover

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Below is the parts list for Mercury 250 (3.0L EFI) Attenuator/Flywheel Cover:

Mercury 250 (3.0L EFI) Attenuator/Flywheel Cover Diagram
Position No. Part Name OEM Number Supersedes
1 COVER, Flywheel 892854T01 880009T02, 880009T 1
2 GROMMET, (.88 Inside Diameter) 25-13467
3 GROMMET 25-8M0153609
4 PLUG 19-89219001
5 ATTENUATOR ASSEMBLY 881909T3
6 BUSHING 23-856954
7 GROMMET 25-8M0190980
8 SEAL 882767
9 GROMMET 25-20116
10 CLIP 54-23567
11 WASHER, (.265 x .750 x .048) Stainless Steel 12-65567
12 SCREW, (M6 x 25) 10-82130025
13 DECAL, Caution-Start in Gear 37-881865 37-825064
14 SCREW, (#10-16 x .750) 10-69570

Bottom Cowl

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Below is the parts list for Mercury 250 (3.0L EFI) Bottom Cowl:

Mercury 250 (3.0L EFI) Bottom Cowl Diagram
Position No. Part Name OEM Number Supersedes
1 BOTTOM COWL, Port 100-8M0107324 113-850302A07
2 PLUG 854367001 854367
3 BOTTOM COWL, Starboard 100-8M0107323 113-850301A07
4 GASKET KIT 27-889246A97
5 SCREW, (M6 x 40) 10-82130040
6 SCREW, (M6 x 75) 10-824868
7 WASHER, (.281 x .500 x .060) Stainless Steel 12-8M0204649
8 FRONT HANDLE 8M0053903 850684F 1
9 BUSHING 23-335891
10 O-RING, (.614 x .070) 25-48462
11 PAWL 8219423
12 WASHER, (.281 x .734 x .063) 12-69057
13 NUT, (M6) Stainless Steel 11-401366
14 SCREW, (#10-16 x .625) 10-8214281
15 CLIP 54-822873
16 SWITCH, Trim 87-8M0235191
17 RIGGING KIT (Upper) 8M8027677 54-859359A 2
18 NOT SOLD SEPARATE, Clamp-Lower NSS
19 SCREW, (M6 x 12) 10-82130012
20 NOT SOLD SEPARATE, Strap NSS
21 FOAM 859343
22 TIE STRAP, (11.750 Inches) 54-850181
23 HANDLE 852361T02
24 SEAL, (44.00 Inches) 8M0109218

Coil Plate

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Below is the parts list for Mercury 250 (3.0L EFI) Coil Plate:

Mercury 250 (3.0L EFI) Coil Plate Diagram
Position No. Part Name OEM Number Supersedes
1 PLATE, Coil Mounting 850295T2
2 COIL KIT 300-8M0077471 300-879984T01, 339-879984A 1, 339-879984T00
3 SCREW, (M6 x 30) 10-82129130
4 CABLE SET 84-881908T 84-821945T74, 84-821945T65
5 CLIP (Included with Coil Harness) 54-828991T 54-828991
6 SPARK PLUG 33-941
7 HARNESS ASSEMBLY, Coil 84-882757T02
- HARNESS ASSEMBLY, 5 Pin 879346A51 84-854839T02
8 CABLE ASSEMBLY, Braided 84-858414A1
9 SCREW, (M6 x 10) 10-82129110
10 WASHER, (.281 x .500 x .060) Stainless Steel 12-8M0204649
11 GROMMET 25-833155
12 WASHER 12-4002318
13 BUSHING 23-8502341
14 SCREW, (M8 x 35) 10-81893435
15 SENSOR KIT, (0-50 PSI) 71-8M0157742
16 FITTING 22-8M0207782
17 CLIP, (.865) 54-883066
18 TIE STRAP, (8.00 Inches) 54-816311T 54-816311, 54-90077, 54-826785, F1877, F717046-1, F717046, MAF03001, 833188E, 54-F9301, 54-816311100, 54-898101111, 54-898101275
19 TUBING, (52.00 Inches Bulk) (Cut to 18 Inches) 32-85978571
20 WASHER 12-36001

Crankshaft, Pistons and Connecting Rods

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Below is the parts list for Mercury 250 (3.0L EFI) Crankshaft, Pistons and Connecting Rods:

Mercury 250 (3.0L EFI) Crankshaft, Pistons and Connecting Rods Diagram
Position No. Part Name OEM Number Supersedes
1 CRANKSHAFT ASSEMBLY 482-9784A11
2 WEAR SLEEVE 830882
3 BEARING, Ball (Lower) 30-67923T
4 RING 53-67446
5 RING, Seal 39-843198T01 39-843198001, 39-816106
6 KEY, Woodruff 28-91800
7 O-RING, (.859 x .139) 25-35126
8 BEARING/RACE KIT 31-88270A02
9 NOT SOLD SEPARATE, Bearing-Center Main NSS
10 PISTON ASSEMBLY, Standard - Starboard 700-858295T14 700-858295T 1
10 PISTON ASSEMBLY, Standard - Port 700-858294T14 700-858294T 1
10 PISTON ASSEMBLY Comment: (Starboard - .015 oversize) 700-878572A2
10 PISTON ASSEMBLY Comment: (Port - .015 oversize) 700-878571A2
10 PISTON ASSEMBLY Comment: (Starboard - .030 oversize) 700-878574A2
10 PISTON ASSEMBLY Comment: (Port - .030 oversize) 700-878573A2
11 RING 40-841202
12 RING SET, Piston 39-858772A12
13 NOT SOLD SEPARATE, Piston Ring-Lower NSS
14 CONNECTING ROD ASSEMBLY 600-8M0125869
15 SCREW, (.375-24 x 1.250) 10-94320
16 BEARING ASSEMBLY 31-844338A01 31-43012A04
17 NOT SOLD SEPARATE, Needle Roller Bearing NSS
18 THRUST WASHER 12-88263
19 BEARING, Needle 29-8M0204715
20 BEARING ASSEMBLY (Upper) 31-816773A2
21 SEAL 26-859093 26-815449
22 O-RING, (1.989 x .070) 25-823683 25-64067
- GASKET SET, Powerhead 27-832934A00
- POWERHEAD ASSEMBLY Comment: (200) 891823A07 891823A04, 891823B04 (200)
- POWERHEAD ASSEMBLY Comment: (225) 883892A07 883892A04, 883892A03, 883892A02 (225)
- POWERHEAD ASSEMBLY Comment: (250) 883894A07 883894A04, 883894A03, 883894A02 (250)

Cyliner Block and End Cap

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Below is the parts list for Mercury 250 (3.0L EFI) Cyliner Block and End Cap:

Mercury 250 (3.0L EFI) Cyliner Block and End Cap Diagram
Position No. Part Name OEM Number Supersedes
1 CYLINDER BLOCK ASSEMBLY Comment: (200) 885-899162A05 885-9811T91 (200)
1 CYLINDER BLOCK ASSEMBLY Comment: (225) 885-899162A06 885-9811T92 (225)
1 CYLINDER BLOCK ASSEMBLY Comment: (250) 885-899162A07 885-9811T93 (250)
2 SCREW, (M8 x 40) 10-81893440
3 BRACKET 8M0111325
4 STUD, (M10 x 1.5 x 64) 16-903509
5 STUD, (M10 x 1.5 x 155) 16-8154431
6 DEFLECTOR 8248577
7 CHECK VALVE 21-8781051
8 PIN 17-8M0036405 17-67296
9 PIN, Dowel - Without Hole (.375 x .625) 17-43044
10 SCREW, (M10 x 80) 10-82446180
11 SCREW, (M8 x 35) 10-81893435
12 SCREW, (M8 x 20) 10-81893420
13 PIN, Dowel (.250 x .625) 17-63779
14 SENSOR ASSEMBLY, Temperature 13536A13
15 PIN 17-8405101
16 RETAINER 8588641
17 WASHER, (.406 x .750 x .105) Stainless Steel 12-8M0214963
18 NUT, (M10) Stainless Steel 11-4013610
19 SENSOR 8M0082988 8M0030022, 828358 2
20 SCREW, (M5 x 16) Stainless Steel 10-40011107
21 END CAP ASSEMBLY 1171-9787A4
22 O-RING, (3.237 x .103) 25-62700
23 SEAL 26-8308981
24 SCREW, (M6 x 20) 10-82130020
25 PLATE ASSEMBLY 857186T02 857186A 1
26 MOUNT 23-855729
27 SCREW, (M10 x 45) 10-82130145
28 SCREW, (M6 x 10) 10-82494810
29 GROMMET 25-19565002
30 WASHER 12-855725
31 RETAINER 137151
32 J CLIP 54-858951
33 SCREW, (M6 x 12) 10-82130012
34 SEAL 818574
35 CYLINDER HEAD ASSEMBLY 812851A27 812851A22, 812851A19
36 SEAL 884391
37 THERMOSTAT, 54 Degree C/130 Degree F 8M0057307 885599004, 885599003, 885599 1
38 GASKET 27-8503181
39 COVER, Thermostat 8M0039357 887926
40 SCREW, (M6 x 25) 10-82130025
41 SCREW, (M8 x 50) 10-8M0045380 10-891570050, 10-859096, 10-824460 50, 10-891570
42 SENSOR ASSEMBLY 8M0148668
43 O-RING, (1.78 mm x .08 mm) 25-896699 25-888814
44 SCREW, (M8 x 14) 10-81893414
45 FITTING, Elbow 45 Degree (1.25) 22-782792
46 LEVER, TPI 8583561
47 SCREW, (M6 x 25) 10-82130025
48 BUSHING 23-856954
49 GROMMET 25-8M0190980
50 WASHER, (.265 x .750 x .048) Stainless Steel 12-65567
51 SCREW, (M5 x 45) Stainless Steel 10-40011113
52 INDICATOR, Throttle Position 8M6005165
53 LINK 8M0084743
54 CLAMP 54-858902
55 COVER 8582261
56 BRACKET 8544862
57 CLAMP, (25.6 mm) 54-855228 54-888988014
58 FITTING 22-8533394
59 HOSE (Starboard) 32-8404461
60 HOSE (Port) 32-8404462
61 SENSOR ASSEMBLY, Knock Comment: (200) 8M6003194 878187 (200)
62 STUD Comment: (200) 16-882781
63 NUT, (M10) Brass/Nickel Plated Comment: (200) 11-826292
- GASKET SET, Powerhead 27-832934A00
- POWERHEAD ASSEMBLY Comment: (200) 891823A07 891823A04, 891823B04 (200)
- POWERHEAD ASSEMBLY Comment: (225) 883892A07 883892A04, 883892A03, 883892A02 (225)
- POWERHEAD ASSEMBLY Comment: (250) 883894A07 883894A04, 883894A03, 883894A02 (250)

Deck Oil Fill Kit, 15969A3 or 15969A5

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Below is the parts list for Mercury 250 (3.0L EFI) Deck Oil Fill Kit, 15969A3 or 15969A5:

Mercury 250 (3.0L EFI) Deck Oil Fill Kit, 15969A3 or 15969A5 Diagram
Position No. Part Name OEM Number Supersedes
1 DECK FILL KIT, Oil, With Hose 15969A3
2 DECK FILL KIT, Oil, With Out Hose 15969A13
3 PLATE 15966
4 DECK PLATE ASSEMBLY 15969A08
5 SCREW, (#8 x .625) 10-16324
6 CLAMP, Worm Gear 54-815504228 54-32781, 54-853232, 54-853432
7 ADAPTOR, Oil Filler 15967
8 O-RING, (2.225 x .210) 25-11332
9 HOSE, (100.00 Feet Bulk) , Oil Filler - Cut as Required 32-850719

Driveshaft Housing and Exhaust Tube

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Below is the parts list for Mercury 250 (3.0L EFI) Driveshaft Housing and Exhaust Tube:

Mercury 250 (3.0L EFI) Driveshaft Housing and Exhaust Tube Diagram
Position No. Part Name OEM Number Supersedes
1 HOUSING ASSEMBLY, Driveshaft - Long 3518-832937A06 3518-832937A05, 3518-832937A 3, 3518-832937A 4
1 HOUSING ASSEMBLY, Driveshaft - X/XX-Long 3519-832938A06 3519-832938A 5
2 STUD, (M12 x 52) Comment: Long/X-Long 16-8M0008031 16-856983, 16-822257 Long/X-Long
3 SCREW, (M12 x 35 MM) Comment: Long/X-Long 10-857136
4 GROMMET 25-8331231
5 WASHER, (.500 x .810 x .090) Stainless Steel 12-856982
6 NUT, (M12) 11-896895 11-857008
7 PLUG 19-64649
8 BOLT, (M14 x 178) 10-898834 10-815431002, 10-815431
9 CABLE ASSEMBLY, Ground 88238A10
10 WASHER, (.562 x 2.00 x .125) 12-815432
11 WASHER, (1.25 x 2.00 x .19) 12-8154331
12 MOUNT 8137711
13 WASHER 12-825190
14 NUT, (M14) 11-896602 11-815434, 11-815434002
15 CLAMP, When Depleted Order Design II Kit 879150A90 Comment: Design I SN# 1B775625 & Below 8186442
16 SCREW, (M8 x 35) 10-81893435
17 LOCKWASHER, Internal Tooth 13-72521
18 COVER, Lower Mount, When Depleted Order Design II Kit 879150A90 Comment: Design I SN# 1B775625 & Below 8M0001136 818645F 1 Design I SN# 1B775625 & Below
19 SCREW, (#10-16 x .440) Comment: Design I 10-69079
20 SEAL 8329321
21 TUBE ASSEMBLY, Exhaust 833116A19 833116A17
22 STRAINER 35-8M0026113 35-852405 2
23 SCREW, (M8 x 35) 10-81893435
24 TUBE, Water Comment: Long 32-8M0042785 32-832941 7 Long
24 TUBE, Water Comment: X-Long 32-8M0042786 32-832941 8 X-Long
24 TUBE, Water Comment: XX-Long 32-8M0042787 32-832941 9 XX-Long
25 SEAL 832940001 832940
26 CLAMP 8329391
27 SCREW, (.250-20 x .500) Stainless Steel 10-41508
28 SPACER Comment: XX-Long 8M0105088 8M0071622, 880647T04, 823979T 1, 880647T02, 880647T XX-Long
29 PIN, Dowel - Without Hole (.375 x .625) Comment: XX-Long 17-43044
30 STUD, (M12 x 179) Comment: XX-Long 16-8M0008047 16-857009, 16-824117 XX-Long
31 SCREW, (M12 x 160) Comment: XX-Long 10-857137
32 SCREW, (M8 x 35) 10-81893435
33 COVER KIT, Lower Mount Comment: Design II SN# 1B775625 & Below 879150A90
34 COVER, Lower Mount Comment: Design II SN# 1B775626 & Up 100-8M0148785
35 CLAMP Comment: Design II SN# 1B775626 & Up 100-8M4501003
36 SCREW, (#10-16 x .440) Comment: Design II SN# 1B775626 & Up 10-69079
37 WASHER 12-847541
38 WASHER, (.500 x .810 x .090) Stainless Steel 12-856982

Dual Engine Tie Bar Kit

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Below is the parts list for Mercury 250 (3.0L EFI) Dual Engine Tie Bar Kit:

Mercury 250 (3.0L EFI) Dual Engine Tie Bar Kit Diagram
Position No. Part Name OEM Number Supersedes
- EXTENSION KIT, Dual Engine 92876A9
1 TUBE ASSEMBLY 71565A2
2 O-RING, (.614 x .070) 25-48462
3 MOUNT 41055
4 TAB WASHER 14-42100
5 NUT, (.875-14) 11-8M0041651 11-37984
6 TAB WASHER 88404
7 SCREW, (.250-28 x 1.250) 10-38601
8 BRACKET 17729A1
9 SCREW, (.312-24 x 1.250) 10-62055
10 TAB WASHER 17728
11 SCREW, (.375-24 x 1.38) 10-140001
12 NUT, (.375-24) Stainless Steel 11-8M0204726
13 STEERING EYE 8M0026167 8M0005848, 97933 1
14 SLEEVE, (1.625) 23-23651
15 TUBING, (4.00 Inches) 97931
16 COUPLER, 15 In. 8M0026098 814951 3
17 NUT, (.562-18) 11-42099
18 COUPLING 22-821169
19 WASHER, (.406 x .734 x .063) Stainless Steel 12-34931
19 WASHER, (.390 x .625 x .062) Stainless Steel 12-37828
20 SCREW, (.375-24 x 1.5) 10-94319

Exhaust Plate

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Below is the parts list for Mercury 250 (3.0L EFI) Exhaust Plate:

Mercury 250 (3.0L EFI) Exhaust Plate Diagram
Position No. Part Name OEM Number Supersedes
1 PLATE ASSEMBLY, Exhaust 832935A17 832935A16, 832935A15, 832935A14
2 GASKET 27-832933006
3 GASKET (Lower) 27-832934006
4 SEAL 8M0043157 823805 1
5 FITTING, Check Valve 22-8320761
6 PLUG, Pipe (.375-18) Brass 22-8M0180565
7 CHECK VALVE ASSEMBLY, Drain 21-817519A1
8 PIN, Dowel - Without Hole (.375 x .625) 17-43044
9 GROMMET 25-822002
10 PLUG 19-48323
11 COVER ASSEMBLY 65663A2
12 SCREW, (M8 x 35) 10-81893435
13 CARRIER 814190
14 GROMMET 25-814191
15 POPPET 814189
16 SPRING, (Black) 24-64878
17 PLATE ASSEMBLY 65664A1
18 GASKET 27-88907003
19 DIAPHRAGM 648771
20 WASHER 12-76451
21 SCREW, (#10-16 x .750) 10-69570
22 SCREW, (M8 x 35) 10-81893435
23 BOOT KIT, Idle Exhaust Comment: Includes references 44 and 45 850306A04 850306 1 Includes references 44 and 45
24 CLAMP, (28.6) 54-850896
25 FITTING, Tell-Tale 22-8M0077650 821904
26 PLUG 19-821908
27 WASHER 12-821915
28 FITTING 22-8596001
29 CHECK VALVE 8219631
30 O-RING, (.299 x .103) 25-30641
31 BUSHING 23-48237
32 COUPLING Comment: Design I 43585
33 FITTING, Straight 22-858855
34 GROMMET 25-12602002
35 HOSE, (57.00 Inches Bulk) (Cut to 3 Inches) 32-8M0108355 32-8M0047428, 32-830756109, 32-99127109, 32-877821
36 FLUSH HOSE KIT (Inlet) 32-859626A1
37 PLATE 888910
38 SCREW, (M5 x 12) 10-82239312
39 COUPLER, Shift Shaft Comment: Design II 8M0027417
- GASKET SET, Powerhead 27-832934A00
- POWERHEAD ASSEMBLY Comment: (200) 891823A07 891823A04, 891823B04 (200)
- POWERHEAD ASSEMBLY Comment: (225) 883892A07 883892A04, 883892A03, 883892A02 (225)
- POWERHEAD ASSEMBLY Comment: (250) 883894A07 883894A04, 883894A03, 883894A02 (250)

Flywheel/Alternator

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Below is the parts list for Mercury 250 (3.0L EFI) Flywheel/Alternator:

Mercury 250 (3.0L EFI) Flywheel/Alternator Diagram
Position No. Part Name OEM Number Supersedes
1 ALTERNATOR 8M6013461
2 SPRING 24-8523742
3 ARM TENSIONER ASSEMBLY 856815T2
4 WASHER 12-4002320
5 BUSHING 23-8568941
6 STUD, (M10 x 85) 16-8M0034457 16-856900
7 NUT, (M10) Brass/Nickel Plated 11-826292
8 PULLEY ASSEMBLY 8M6005030
9 SCREW, (M10 x 35) Hex Flange - Stainless Steel 10-4010835
10 BELT 57-828507Q11 57-828507 11
11 FLYWHEEL 283-859619T1
12 NUT, (M16) 11-42979
13 WASHER, (.641 x 1.250 x .190) 12-33001
14 PLUG, Yellow 19-45907
15 NUT, (M6) Stainless Steel 11-401386
16 CABLE ASSEMBLY 84-856583A5
17 WASHER 12-4002319
18 SCREW, (M10 x 50) 10-82130150
19 SCREW, (M6 x 12) 10-82130012

Fuel Line Assembly

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Below is the parts list for Mercury 250 (3.0L EFI) Fuel Line Assembly:

Mercury 250 (3.0L EFI) Fuel Line Assembly Diagram
Position No. Part Name OEM Number Supersedes
1 HOSE ASSEMBLY, Fuel (5.50 Feet-18/42.00 Inches) Comment: (2008 and Below) 32-858610A39 32-858610A21 (2008 and Below)
1 HOSE ASSEMBLY, Fuel (8.00 Feet-30.00/60.00 Inches) Comment: (2008 and Below) 32-858610A33 32-858610A12 (2008 and Below)
1 HOSE ASSEMBLY, Fuel (9.00 Feet-42.00/60.00 Inches) Comment: (2008 and Below) 32-858610A31 32-858610A10, 32-16789A18 (2008 and Below)
1 HOSE ASSEMBLY, Fuel (9 Feet) With Primer Bulb Comment: (2009 and Up) 32-8M8025356 32-8M0038610 (2009 and Up)
1 HOSE ASSEMBLY, Fuel (12 Feet) (12.00 Feet-30.00/108.00 Inches) Comment: (2008 and Below) 32-877683Q12 32-858623Q12, 32-858623A12, 32-822379A12, 32-819380A12, FA599752, FS409752, 32-819380A 3, F216752, FA409752, F289752, FA178752, FA216752, FA284752, FA289752, FS409952 (2008 and Below)
1 HOSE ASSEMBLY, Fuel (12 Feet) Quicksilver Branded Comment: (2009 and Up) 32-8M0044841 32-858110Q12 (2009 and Up)
1 HOSE ASSEMBLY, Fuel (12.00 Feet-30.00/108.00 Inches) Comment: (2008 and Below) 32-877683T12 32-858623T12 (2008 and Below)
1 HOSE ASSEMBLY, Fuel (12 Feet) Mercury Branded Comment: (2009 and Up) 32-8M0044837 32-858108K12 (2009 and Up)
2 HOSE, (9.00 Feet Bulk) Comment: (2008 and Below) 32-85861079
2 HOSE, (9.00 Feet)(108.00 In.) Bulk Comment: (2009 and Up) 32-8M0038468
2 HOSE, (100.00 Feet Bulk) Comment: (2008 and Below) 32-858610100 32-16789100 (2008 and Below)
2 HOSE, (100.00 Feet Bulk) Comment: (2009 and Up) 32-8M0038500
3 BULB ASSEMBLY, Primer (Yellow Washer) 13330K07
3 BULB ASSEMBLY, Primer (Yellow Washer) 13330K07
3 BULB ASSEMBLY, Primer (Yellow Washer) 13330Q07
4 CHECK VALVE ASSEMBLY, Inlet 21-13331A3
5 CHECK VALVE ASSEMBLY, Outlet 21-13331A4
6 CLAMP, Nylon, Large 54-4158210
7 CLAMP, Nylon, Small 54-41582Q7
8 CLAMP, Nylon, Small 54-41582Q7
8 CLAMP, Worm Gear 54-815504104 54-54428, 54-809952104, 54-8M2001484, 54-F9005, F24772, F24788, F901788

Fuel Management

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Below is the parts list for Mercury 250 (3.0L EFI) Fuel Management:

Mercury 250 (3.0L EFI) Fuel Management Diagram
Position No. Part Name OEM Number Supersedes
- MANAGEMENT ASSEMBLY, Fuel 880004T08 880004T07
1 ADAPTOR PLATE 883951T1
2 GASKET 27-804680
3 REED BLOCK 828623T4
4 SCREW, (M6) 10-8555252
5 BUSHING 23-855364
6 GROMMET 25-855362001 25-855362
7 SCREW, (M8 x 35) 10-81893435
8 WASHER, (.344 x 1.00 x .063) Stainless Steel 12-817274 12-817274 1
9 SCREW, (M8 x 30) 10-81893430
10 PLENUM KIT, Air 883950T1
11 GASKET 27-804679004 27-804679 3
12 SCREW, (M6 x 16) 10-1993716
13 BRACKET, MAP Sensor 884522 804873, 841095
14 SENSOR, MAP 854445
15 SENSOR ASSEMBLY 8M0148668
16 O-RING, (1.78 mm x .08 mm) 25-896699 25-888814
17 THROTTLE BODY KIT 883949T1
18 SCREW, (M6 x 40) 10-82130040
19 O-RING 25-855426
20 LEVER ASSEMBLY, Throttle 858851A03
21 ROLLER 8M0072162 889610, 840968
22 WASHER, (.203 x .500 x .032) 12-8M0204666
23 NUT, Stainless Steel 8-32,11-826709104 11-846115
24 SCREW, Special 10-889354
25 WASHER, Cupped 12-881991
26 WASHER, Spool 12-881992
27 LOCKWASHER, External 10,13-69432
28 CAM ASSEMBLY 858353A08 858353A 3
29 BALL, Threaded 8235694
30 BUSHING 23-8M0215006
31 BUSHING 23-8807371
32 SCREW, (M8 x 55) Stainless Steel 10-40011155
33 WASHER, (.330 x .750 x .060) Stainless Steel 12-56720
34 FITTING 22-993211
35 PUMP ASSEMBLY, Oil 8M0185615
36 BRACKET 883926
37 SCREW, (M4 x 16) 10-883942
38 SCREW, (M6 x 25) 10-82130025
39 WASHER 12-8M0214930
40 GROMMET 25-8M0190980
41 BUSHING 23-822003
42 FUEL RAIL 883952T1
43 RETAINER 8833821
44 SCREW, (#8-32 x .380) 10-840118
45 INJECTOR ASSEMBLY 840481T01 840481001, 840481, 883381
46 O-RING KIT 25-895239A01
47 TUBE 8832151
48 O-RING 25-883355
49 FITTING 22-883940
50 SCREW, (#10-24 x .375) 10-883376
51 RETAINER 883382
52 O-RING, (.239 x .070) 25-20385
53 HARNESS ASSEMBLY, Fuel Rail 84-880745T1
54 CLAMP 54-883941
55 J CLIP (Use where Applicable) 54-8M0024808
56 SCREW, (M6 x 40) 10-82130040
- GASKET SET, Powerhead 27-832934A00
- POWERHEAD ASSEMBLY Comment: (200) 891823A07 891823A04, 891823B04 (200)
- POWERHEAD ASSEMBLY Comment: (225) 883892A07 883892A04, 883892A03, 883892A02 (225)
- POWERHEAD ASSEMBLY Comment: (250) 883894A07 883894A04, 883894A03, 883894A02 (250)

Fuel Pump

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Below is the parts list for Mercury 250 (3.0L EFI) Fuel Pump:

Mercury 250 (3.0L EFI) Fuel Pump Diagram
Position No. Part Name OEM Number Supersedes
- PUMP KIT, Fuel 14360A78
1 NOT SOLD SEPARATE, Fuel Pump NSS
- DIAPHRAGM KIT 21-857005A1
2 NOT SOLD SEPARATE, Disc Check Valve NSS
3 NOT SOLD SEPARATE, Diaphragm NSS
4 NOT SOLD SEPARATE, Retainer NSS
5 NOT SOLD SEPARATE, Spring NSS
6 NOT SOLD SEPARATE, Cap NSS
7 NOT SOLD SEPARATE, Spring NSS
8 NOT SOLD SEPARATE, Cap NSS
9 NOT SOLD SEPARATE, Diaphragm NSS
10 NOT SOLD SEPARATE, Gasket-Boost NSS
11 NOT SOLD SEPARATE, Gasket-Pulse NSS
12 GASKET 27-8M0204705
13 PLATE 987752
14 FITTING, Straight (.125-27) 22-16604
15 SCREW, (M5 x 40), Fuel Pump 10-82104540
16 SCREW, (M6 x 50), Pump to Crankcase 10-82130050
17 BASE 144303
18 ELBOW, To Crankcase 22-856842
19 TIE STRAP, (8.00 Inches) 54-816311T 54-816311, 54-90077, 54-826785, F1877, F717046-1, F717046, MAF03001, 833188E, 54-F9301, 54-816311100, 54-898101111, 54-898101275
20 HOSE, Pulse Line 32-8M0064783 32-858800
21 CONNECTOR 22-822769
22 HOSE 32-8M0064778 32-856817 2
23 NOT SOLD SEPARATE, Cap NSS
24 HOSE/SLEEVE 32-8M0064780 32-856818A 1
25 HOSE, (57.00 Inches Bulk) (Cut to 16 Inches) 32-8M0108355 32-8M0047428, 32-830756109, 32-99127109, 32-877821
26 CONNECTOR 22-858955
27 CLAMP, Hose (15.3) 54-8M0214964
28 HOSE 32-8839461
29 HOSE, (40.00 Inches Bulk) (Cut to 15 Inches) To Elbow on Plenum 32-8M0054213 32-855834 66
30 HOSE, (40.00 Inches Bulk) (Cut to 28 Inches) To Oil Pump 32-8M0054213 32-855834 66
31 TIE STRAP, (8.00 Inches) 54-816311T 54-816311, 54-90077, 54-826785, F1877, F717046-1, F717046, MAF03001, 833188E, 54-F9301, 54-816311100, 54-898101111, 54-898101275
32 CONDUIT 32-883965
- GASKET SET, Powerhead 27-832934A00
- POWERHEAD ASSEMBLY Comment: (200) 891823A07 891823A04, 891823B04 (200)
- POWERHEAD ASSEMBLY Comment: (225) 883892A07 883892A04, 883892A03, 883892A02 (225)
- POWERHEAD ASSEMBLY Comment: (250) 883894A07 883894A04, 883894A03, 883894A02 (250)

Gear Housing, Driveshaft-Standard/Counter Rotation

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Below is the parts list for Mercury 250 (3.0L EFI) Gear Housing, Driveshaft-Standard/Counter Rotation:

Mercury 250 (3.0L EFI) Gear Housing, Driveshaft-Standard/Counter Rotation Diagram
Position No. Part Name OEM Number Supersedes
- GEAR HOUSING ASSEMBLY, Complete - Standard - Long 1600-880686A43 1600-880686T29
- GEAR HOUSING ASSEMBLY, Complete - Standard - X Long 1600-880686A44 1600-880686T33
- GEAR HOUSING ASSEMBLY, Complete - Standard - XX Long 1600-880686A51 1600-880686T34
- GEAR HOUSING ASSEMBLY, Complete - Counter Rotation - X Long 1600-880686A52 1600-880686T38
- GEAR HOUSING ASSEMBLY, Complete - Counter Rotation - XX Long 1600-880686A53 1600-880686T39
1 GEAR HOUSING ASSEMBLY, Basic, Used With 5/16 Inch Shift Crank Comment: SN# 1B853027 & Below 1600-880687T01
1 GEAR HOUSING ASSEMBLY, Basic, Used With 1/4 Inch Shift Crank Comment: SN# 1B853028 & Up 1600-8M0056631
2 FILLER BLOCK Comment: SN# 1B537639 & Below 821526001 821526 SN# 1B537639 & Below
2 FILLER BLOCK Comment: SN# 1B537640 & Up 8M0010459
3 PIN, Dowel - Without Hole (.375 x .625) 17-43044
4 ANODE 97-826134Q 826134, 826134A 1
5 SCREW, (M6 x 40) 10-4000333
6 NUT, (M6) Stainless Steel 11-401386
7 PLUG ASSEMBLY, (.375-16 x .250) 10-79953A04
8 SEAL 26-8M0204693
9 ANODE KIT Comment: Mercury 97-76214T5
9 ANODE KIT Comment: Quicksilver 97-76214Q5
10 SCREW, (.437-14 x 1.750) 10-8M0204686
11 COVER ASSEMBLY Comment: Design-I 8M0047129 880703A 1 Design-I
11 COVER ASSEMBLY Comment: Design-II 8M0047129 880703A 1 Design-II
12 FITTING Comment: Design-I and II 22-881866 22-859432 Design-I and II
13 O-RING, (799 x .103) Comment: Design-I and II 25-896522
14 SEAL, Oil Comment: Design-I and II 26-8M0204708
15 RETAINING RING Comment: Design-II 53-8M0046563
16 SCREW, (M6 x 20) Stainless Steel 10-8M0204741
17 WASHER 12-77674
18 GASKET 27-880729
19 SHIFT SHAFT 824145
20 NOT SOLD SEPARATE, Pinion Gear Comment: Part of 43-892595A04 or 43-880720A03 NSS
21 NUT, (.625-18) 11-35921
22 WASHER 12-92721
23 BEARING ASSEMBLY, Roller 31-42647A1
24 DRIVESHAFT, Long 45-895079T
24 DRIVESHAFT, X-Long 45-895080T
24 DRIVESHAFT, XX-Long 45-895081T
25 KEY, Also a Component of Water Pump Housing 28-8M0204723
26 SHIM/BEARING ASSEMBLY Comment: SN# 1B792549 & Below 15-884327A02
27 SHIM ASSEMBLY 15-8M0063268
28 NOT SOLD SEPARATE, Roller Bearing Assembly Comment: SN# 1B792549 & Below NSS
29 NOT SOLD SEPARATE, Cup Comment: SN# 1B792549 & Below NSS
30 NOT SOLD SEPARATE, Roller Bearing Assembly Comment: SN# 1B792549 & Below NSS
31 NOT SOLD SEPARATE, Cup Comment: SN# 1B792549 & Below NSS
32 RETAINER 8245191
33 HOUSING, Water Pump-Complete 817275A09
34 SEAL KIT 26-861415A1
35 SCREW, (M6 x 20) Stainless Steel 10-8M0204741
36 IMPELLER 47-43026T2
37 FACEPLATE 8M0204709
38 RING, Retaining 53-880719
39 CARRIER ASSEMBLY, Oil Seal 8M0007131 888909A 1
40 O-RING, (2.175 x .103) 25-8M0142854
41 NOT SOLD SEPARATE, Oil Seal NSS
42 NOT SOLD SEPARATE, Oil Seal NSS
43 GASKET 27-8172771
44 GASKET 27-430331
45 COUPLING ASSEMBLY 832942A1
46 O-RING, (1.046) 25-8M0204654
47 O-RING, (.796 x .139) 25-8M0204645
48 COUPLING 43585
49 BEARING ASSEMBLY, Roller/Cup Comment: SN# 1B792550 & Up 31-8M0146566
50 NOT SOLD SEPARATE, CUP Comment: SN# 1B792550 & Up NSS
51 SHIM SET Comment: SN# 1B792550 & Up 15-8M0053110
52 BEARING, Tapered Roller Comment: SN# 1B792550 & Up 31-8M0146553
53 NOT SOLD SEPARATE, CUP Comment: SN# 1B792550 & Up NSS
- SEAL KIT, Gear Housing 26-830749A01
- REPAIR KIT, Water Pump-Upper 817275A08

Gear Housing, Prop Shaft - Std Rotation 2B014225 & below

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Below is the parts list for Mercury 250 (3.0L EFI) Gear Housing, Prop Shaft - Std Rotation 2B014225 & below:

Mercury 250 (3.0L EFI) Gear Housing, Prop Shaft - Std Rotation 2B014225 & below Diagram
Position No. Part Name OEM Number Supersedes
- GEAR HOUSING ASSEMBLY, Complete - Standard - Long 1600-880686A43 1600-880686T29
- GEAR HOUSING ASSEMBLY, Complete - Standard - X Long 1600-880686A44 1600-880686T33
- GEAR HOUSING ASSEMBLY, Complete - Standard - XX Long 1600-880686A51 1600-880686T34
1 GEAR HOUSING ASSEMBLY, Basic, Used With 5/16 Inch Shift Crank Comment: SN# 1B853027 & Below 1600-880687T01
1 GEAR HOUSING ASSEMBLY, Basic, Used With 1/4 Inch Shift Crank Comment: SN# 1B853028 & Up 1600-8M0056631
2 NOT SOLD SEPARATE, Plug NSS
3 CRANK, Shifter, 5/16 Pivot Pin Comment: SN# 1B853027 & Below 896847A01 892075 SN# 1B853027 & Below
3 CRANK, Shifter, 1/4 Pivot Pin Comment: SN# 1B853028 & Up 8M0220880
4 SPOOL ASSEMBLY 8M0235940
5 NOT SOLD SEPARATE, Spool NSS
6 COTTER PIN 18-469501
7 NOT SOLD SEPARATE, Sleeve Adjusting NSS
8 GEAR SET, Forward/Pinion 43-892595A04
9 SHIM SET 15-884328A01
10 BEARING ASSEMBLY, Roller 31-8M0142836
11 NOT SOLD SEPARATE, Cup NSS
12 RING, Retaining 53-8M0051043 53-23721
13 THRUST WASHER 12-8M0053823 12-892805
14 BEARING ASSEMBLY, Roller-Tappered 31-8M0142835
15 NOT SOLD SEPARATE, Cup NSS
16 CLUTCH 52-880714T01
17 SPRING 24-30893
18 PIN, Detent 17-828356
19 PROPELLER SHAFT 44-888530
20 PIN, Cross 17-8M0100263 17-8M0084681, 17-8M0020941, 17-30632
21 GEAR, Reverse 43-8M0118363
22 THRUST RING 880699
23 SPACER, Thrust 23-891919001
24 CARRIER ASSEMBLY, Bearing 880696A08
25 SHIM SET 15-891936A01
26 BEARING, Ball 30-8M0142873
27 SEAL, Oil 26-8M0204700
28 BEARING ASSEMBLY, Tapered 31-8M0148319
29 NOT SOLD SEPARATE, Cup NSS
30 SEAL, Oil 26-8M0204700
31 O-RING, (3.850 x .210) 25-8M0142840
32 SCREW/SEAL KIT 10-880717A01
33 SEAL 26-8M0204693
34 KEYED WASHER 14-880697
35 RETAINER 8M2011027 79448
- SEAL KIT, Gear Housing 26-830749A01

Gear Housing, Prop Shaft - Std Rotation 2B014226 & up

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Below is the parts list for Mercury 250 (3.0L EFI) Gear Housing, Prop Shaft - Std Rotation 2B014226 & up:

Mercury 250 (3.0L EFI) Gear Housing, Prop Shaft - Std Rotation 2B014226 & up Diagram
Position No. Part Name OEM Number Supersedes
- GEAR HOUSING ASSEMBLY, Complete - Standard - Long 1600-880686A43 1600-880686T29
- GEAR HOUSING ASSEMBLY, Complete - Standard - X Long 1600-880686A44 1600-880686T33
- GEAR HOUSING ASSEMBLY, Complete - Standard - XX Long 1600-880686A51 1600-880686T34
1 GEAR HOUSING ASSEMBLY, Basic, Used With 1/4 Inch Shift Crank Comment: SN# 1B853028 & Up 1600-8M0056631
2 NOT SOLD SEPARATE, Plug NSS
3 CRANK, Shifter, 1/4 Pivot Pin Comment: SN# 1B853028 & Up 8M0220880
4 SPOOL ASSEMBLY 8M0235940
5 NOT SOLD SEPARATE, Spool NSS
6 COTTER PIN 18-469501
7 NOT SOLD SEPARATE, Sleeve Adjusting NSS
8 GEAR SET, Forward/Pinion 43-892595A04
9 SHIM SET 15-884328A01
10 BEARING ASSEMBLY, Roller 31-8M0142836
11 NOT SOLD SEPARATE, Cup NSS
12 RING, Retaining 53-8M0051043 53-23721
13 THRUST WASHER 12-8M0053823 12-892805
14 BEARING ASSEMBLY, Roller-Tappered 31-8M0142835
15 NOT SOLD SEPARATE, Cup NSS
16 CLUTCH 52-880714T01
17 SPRING 24-30893
18 PIN, Detent 17-828356
19 PROPELLER SHAFT 44-8M0140446
20 PIN, Cross 17-8M0100263 17-8M0084681, 17-8M0020941, 17-30632
21 GEAR, Reverse 43-8M0118363
22 THRUST RING 880699
23 SPACER 23-8M0064306
24 SHIM SET 15-8M0076745
24 WASHER, .020 12-8M0050423
24 WASHER, .022 12-8M0050424
24 WASHER, .024 12-8M0050425
24 WASHER, .026 12-8M0050427
24 WASHER, .028 12-8M0050428
24 WASHER, .030 12-8M0050429
24 WASHER, .032 12-8M0050430
24 WASHER, .034 12-8M0050431
24 WASHER, .036 12-8M0050432
24 WASHER, .038 12-8M0050433
24 WASHER, .040 12-8M0050434
24 WASHER, .042 12-8M0050435
24 WASHER, .044 12-8M0050436
24 WASHER, .046 12-8M0050437
24 WASHER, .048 12-8M0050438
24 WASHER, .050 12-8M0050439
25 CARRIER ASSEMBLY, Bearing 8M0083392
26 BEARING, Ball 30-8M0142873
27 SEAL, Oil 26-8M0204700
28 BEARING ASSEMBLY, Tapered 31-8M0148319
29 NOT SOLD SEPARATE, Cup NSS
30 SEAL, Oil 26-8M0204700
31 O-RING, (3.850 x .210) 25-8M0142840
32 SCREW/SEAL KIT 10-880717A01
33 SEAL 26-8M0204693
34 KEYED WASHER 14-880697
35 RETAINER 8M2011027 79448
- SEAL KIT, Gear Housing 26-830749A01

Gear Housing, Prop Shaft-Counter Rotation 2B014225 & below

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Below is the parts list for Mercury 250 (3.0L EFI) Gear Housing, Prop Shaft-Counter Rotation 2B014225 & below:

Mercury 250 (3.0L EFI) Gear Housing, Prop Shaft-Counter Rotation 2B014225 & below Diagram
Position No. Part Name OEM Number Supersedes
- GEAR HOUSING ASSEMBLY, Complete - Counter Rotation - X Long 1600-880686A52 1600-880686T38
- GEAR HOUSING ASSEMBLY, Complete - Counter Rotation - XX Long 1600-880686A53 1600-880686T39
1 GEAR HOUSING ASSEMBLY, Basic, Used With 5/16 Inch Shift Crank Comment: SN# 1B853027 & Below 1600-880687T01
1 GEAR HOUSING ASSEMBLY, Basic, Used With 1/4 Inch Shift Crank Comment: SN# 1B853028 & Up 1600-8M0056631
2 NOT SOLD SEPARATE, Plug NSS
3 CRANK, Shifter, 5/16 Pivot Pin Comment: SN# 1B853027 & Below 896847A01 892075 SN# 1B853027 & Below
3 CRANK, Shifter, 1/4 Pivot Pin Comment: SN# 1B853028 & Up 8M0220880
4 SPOOL ASSEMBLY 8M0235940
5 NOT SOLD SEPARATE, Spool NSS
6 COTTER PIN 18-469501
7 NOT SOLD SEPARATE, Sleeve Adjusting NSS
8 GEAR, Reverse 43-880723A02
9 BEARING ASSEMBLY, Roller 31-8M0142836
10 NOT SOLD SEPARATE, Cup NSS
11 RING, Retaining 53-8M0051043 53-23721
12 THRUST WASHER 12-8M0053823 12-892805
13 BEARING ASSEMBLY, Roller-Tappered 31-8M0142835
14 NOT SOLD SEPARATE, Cup NSS
15 SHIM SET 15-884328A01
16 SPRING 24-30893
17 CLUTCH 52-880714T01
18 PIN, Cross 17-8M0100263 17-8M0084681, 17-8M0020941, 17-30632
19 PIN, Detent 17-828356
20 PROPELLER SHAFT 44-888530
21 GEAR KIT, Forward/Pinion 43-8M0119539 43-880720A03
22 THRUST RING 880699
23 BEARING, Thrust 31-815480
24 CARRIER ASSEMBLY, Bearing 880696A10
25 O-RING, (3.850 x .210) 25-8M0142840
26 BEARING ASSEMBLY, Needle Rollers 31-814653T 31-814653, 31-814653001
27 ADAPTOR, Bearing 8M0148384
28 SHIM SET 15-47397A1
29 SHIM SET 15-891936A01
30 BEARING ASSEMBLY, Tapered 31-8M0148319
31 NOT SOLD SEPARATE, Cup NSS
32 SEAL, Oil 26-8M0204700
33 SEAL, Oil 26-8M0204700
34 SCREW/SEAL KIT 10-880717A01
35 SEAL 26-8M0204693
36 ADAPTOR 8M0053183 892818
37 SPACER, Thrust 23-891919001
38 KEYED WASHER 14-880697
39 RETAINER 8M2011027 79448
40 NOT SOLD SEPARATE, Decal-Counter Rotation NSS
- SEAL KIT, Gear Housing 26-830749A01

Gear Housing, Prop Shaft-Counter Rotation 2B014226 & up

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Below is the parts list for Mercury 250 (3.0L EFI) Gear Housing, Prop Shaft-Counter Rotation 2B014226 & up:

Mercury 250 (3.0L EFI) Gear Housing, Prop Shaft-Counter Rotation 2B014226 & up Diagram
Position No. Part Name OEM Number Supersedes
- GEAR HOUSING ASSEMBLY, Complete - Counter Rotation - X Long 1600-880686A52 1600-880686T38
- GEAR HOUSING ASSEMBLY, Complete - Counter Rotation - XX Long 1600-880686A53 1600-880686T39
1 GEAR HOUSING ASSEMBLY, Basic, Used With 5/16 Inch Shift Crank Comment: SN# 1B853027 & Below 1600-880687T01
1 GEAR HOUSING ASSEMBLY, Basic, Used With 1/4 Inch Shift Crank Comment: SN# 1B853028 & Up 1600-8M0056631
2 NOT SOLD SEPARATE, Plug NSS
3 CRANK, Shifter, 5/16 Pivot Pin Comment: SN# 1B853027 & Below 896847A01 892075 SN# 1B853027 & Below
3 CRANK, Shifter, 1/4 Pivot Pin Comment: SN# 1B853028 & Up 8M0220880
4 SPOOL ASSEMBLY 8M0235940
5 NOT SOLD SEPARATE, Spool NSS
6 COTTER PIN 18-469501
7 NOT SOLD SEPARATE, Sleeve Adjusting NSS
8 GEAR, Reverse 43-880723A02
9 BEARING ASSEMBLY, Roller 31-8M0142836
10 NOT SOLD SEPARATE, Cup NSS
11 RING, Retaining 53-8M0051043 53-23721
12 THRUST WASHER 12-8M0053823 12-892805
13 BEARING ASSEMBLY, Roller-Tappered 31-8M0142835
14 NOT SOLD SEPARATE, Cup NSS
15 SHIM SET 15-884328A01
16 SPRING 24-30893
17 CLUTCH 52-880714T01
18 PIN, Cross 17-8M0100263 17-8M0084681, 17-8M0020941, 17-30632
19 PIN, Detent 17-828356
20 PROPELLER SHAFT 44-8M0140446
21 GEAR KIT, Forward/Pinion 43-8M0119539 43-880720A03
22 THRUST RING 880699
23 BEARING, Thrust 31-815480
24 SHIM SET 15-8M0076745
24 WASHER, .020 12-8M0050423
24 WASHER, .022 12-8M0050424
24 WASHER, .024 12-8M0050425
24 WASHER, .026 12-8M0050427
24 WASHER, .028 12-8M0050428
24 WASHER, .030 12-8M0050429
24 WASHER, .032 12-8M0050430
24 WASHER, .034 12-8M0050431
24 WASHER, .036 12-8M0050432
24 WASHER, .038 12-8M0050433
24 WASHER, .040 12-8M0050434
24 WASHER, .042 12-8M0050435
24 WASHER, .044 12-8M0050436
24 WASHER, .046 12-8M0050437
24 WASHER, .048 12-8M0050438
24 WASHER, .050 12-8M0050439
25 CARRIER ASSEMBLY, Bearing 8M0083392
26 O-RING, (3.850 x .210) 25-8M0142840
27 BEARING ASSEMBLY, Needle Rollers 31-814653T 31-814653, 31-814653001
28 ADAPTOR, Bearing 8M0148384
29 SHIM SET 15-47397A1
30 BEARING ASSEMBLY, Tapered 31-8M0148319
31 NOT SOLD SEPARATE, Cup NSS
32 SEAL, Oil 26-8M0204700
33 SEAL, Oil 26-8M0204700
34 SCREW/SEAL KIT 10-880717A01
35 SEAL 26-8M0204693
36 ADAPTOR 8M0053183 892818
37 SPACER 23-8M0064306
38 KEYED WASHER 14-880697
39 RETAINER 8M2011027 79448
40 NOT SOLD SEPARATE, Decal-Counter Rotation NSS
- SEAL KIT, Gear Housing 26-830749A01

Mercathode Kit

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Below is the parts list for Mercury 250 (3.0L EFI) Mercathode Kit:

Mercury 250 (3.0L EFI) Mercathode Kit Diagram
Position No. Part Name OEM Number Supersedes
1 MERCATHODE KIT 88334A2
2 MERCATHODE ASSEMBLY 88334A4
3 SCREW, (#9-14 x .875) 10-22793
4 WASHER, (.192 x .375 x .0312) Stainless Steel 12-30164
5 NUT, Brass 10-32,11-45076
6 ELECTRODE ASSEMBLY 72958A5
7 O-RING, (.796 x .139) 25-8M0204645
8 SCREW, (#10-16 x 1.250) Stainless Steel 10-87698
9 ANODE ASSEMBLY 97-72957A5
10 O-RING, (.796 x .139) 25-8M0204645
11 SCREW, (#10-16 x 1.250) Stainless Steel 10-87698
12 FUSE, 20 Ampere 88-8M0207796
13 CABLE ASSEMBLY, (5.00 Inches) Red 84-95084A10
14 CABLE ASSEMBLY, (64.00 Inches) 84-95084A13
15 CABLE ASSEMBLY, (72.00 Inches) Black 84-79138A8

Oil Injection Components

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Below is the parts list for Mercury 250 (3.0L EFI) Oil Injection Components:

Mercury 250 (3.0L EFI) Oil Injection Components Diagram
Position No. Part Name OEM Number Supersedes
1 TANK ASSEMBLY, Oil 1200-8M0119508 1200-8M0064073, 1270-830889A10, 1270-830889A 4
2 NOT SOLD SEPARATE, Decal-Reservoir NSS
3 SCREW, (.164-18 x .375) 10-58376
4 WASHER, (.203 x .562 x .060) Stainless Steel 12-72761
5 CAP ASSEMBLY 36-814449A3
6 GASKET 27-42999T
7 SWITCH ASSEMBLY 87-856156T02 87-856156A 2
8 SCREW, (M8 x 35) 10-81893435
9 WASHER 12-4002318
10 GROMMET 25-855362001 25-855362
11 BUSHING 23-855364
12 HOSE, (57.00 Inches Bulk) (Cut to 7 Inches) 32-8M0108355 32-8M0047428, 32-830756109, 32-99127109, 32-877821
13 TIE STRAP, (8.00 Inches) 54-816311T 54-816311, 54-90077, 54-826785, F1877, F717046-1, F717046, MAF03001, 833188E, 54-F9301, 54-816311100, 54-898101111, 54-898101275
14 FITTING 22-8M0207780
15 HOSE, (2.00 Inches) 32-875283
16 FILTER, Oil - In Line 35-875284T01 35-875284001, 35-875284
17 HOSE 32-875289
18 CONNECTOR 22-858955
19 NOT SOLD SEPARATE, Plug NSS
20 HOSE, (24.00 Inches Braided) (Cut to 22 Inches) 32-892830053

Port Bleed System

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Below is the parts list for Mercury 250 (3.0L EFI) Port Bleed System:

Mercury 250 (3.0L EFI) Port Bleed System Diagram
Position No. Part Name OEM Number Supersedes
1 CHECK VALVE 21-8282182
2 PIPE PLUG 22-8272011
3 TUBING, (38.00 Inches Bulk) (Cut to 20-1/2 Inches) 32-8M0054152 32-856060 65
4 CHECK VALVE 21-8159234
5 CHECK VALVE, 90 Degree (.0625-27) 21-8592352
6 TUBING, (38.00 Inches Bulk) (Cut to 13 Inches) 32-8M0054152 32-856060 65
7 CHECK VALVE 21-426585
8 PIPE PLUG 22-8272011
9 CLIP 54-23567
10 SCREW, (#10-16 x .500) 10-878608 10-812832
11 TUBING, (38.00 Inches Bulk) (Cut to 11 Inches) 32-8M0054152 32-856060 65
12 TUBING, (240.00 Inches Bulk) (Cut to 22-1/2 Inches) 32-892024122 32-99130122
13 SCREW, (M8 x 14) 10-81893414
14 CLAMP 54-859172
15 WASHER 12-36001
- POWERHEAD ASSEMBLY Comment: (200) 891823A07 891823A04, 891823B04 (200)
- POWERHEAD ASSEMBLY Comment: (225) 883892A07 883892A04, 883892A03, 883892A02 (225)
- POWERHEAD ASSEMBLY Comment: (250) 883894A07 883894A04, 883894A03, 883894A02 (250)

Power Trim Components

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Below is the parts list for Mercury 250 (3.0L EFI) Power Trim Components:

Mercury 250 (3.0L EFI) Power Trim Components Diagram
Position No. Part Name OEM Number Supersedes
- POWER TRIM KIT 855998A11 855998A08, 855998A07, 855998A10, 855998A09, 855998A05, 855998A 3
1 TRIM MOTOR 8M0031551
2 NOT SOLD SEPARATE, Armature NSS
3 NOT SOLD SEPARATE, End Frame NSS
- O-RING 25-878285
4 SCREW, (M6 x 30) 10-82494830
5 LOCKWASHER, (M6) 13-400256
6 DRIVESHAFT 8782451
7 PO CHECK KIT 878410A1
8 VALVE KIT, Relief, Includes Reference #26 893929A01 813442A 2
9 SHAFT KIT, Tilt Pivot 8M0142997
10 PIN 17-878267 17-44431
11 CYLINDER KIT, Tilt 878235A03 878235A02, 878235A 1
12 END CAP KIT, Tilt Cylinder, Includes Reference #26 878239A02 878239A 1
13 O-RING KIT, Includes Reference #26 8M0142999
14 SHOCK ROD KIT, Includes Reference #26 8M0168219
15 PISTON ASSEMBLY, Memory 8M0143000
16 REPAIR KIT, Check Valve, Includes Reference #26 878406A02 878406A 1
17 PISTON ASSEMBLY 878414T01 878414A 1
18 PISTON ASSEMBLY 878413A1
19 END CAP ASSEMBLY 1100-8M0021648 878243A 1
20 RESERVOIR KIT 878264A1
21 PLUG ASSEMBLY 19-811613
22 SCREW, (M6 x 14) 10-4000327
23 WASHER 12-4002315
24 PUMP KIT 892251A01 878411A 1
25 REPAIR KIT, Power Trim 878408A1
26 PIN, Trilobe 17-821539 17-13794, 17-19603
27 SCREW, (M10 x 30) 10-858771
28 WASHER 12-4002319
29 ANODE KIT 97-818298Q1
30 SCREW, (M6 x 25) 10-8M0204707
31 WASHER, (.281 x .500 x .060) Stainless Steel 12-8M0204649
32 SHAFT 99625002
33 C WASHER 8M0084613 69205
34 CLAMP 54-26550
35 SCREW, (#10-16 x .600) 10-878609 10-812832 1
36 CONDUIT, (.350 Inside Diameter x 3.00 Feet Bulk), Cut to 12 Inches 32-828547353
37 TIE STRAP, (8.00 Inches) 54-816311T 54-816311, 54-90077, 54-826785, F1877, F717046-1, F717046, MAF03001, 833188E, 54-F9301, 54-816311100, 54-898101111, 54-898101275

Powerhead Gasket Set Components

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Below is the parts list for Mercury 250 (3.0L EFI) Powerhead Gasket Set Components:

Mercury 250 (3.0L EFI) Powerhead Gasket Set Components Diagram
Position No. Part Name OEM Number Supersedes
- GASKET SET, Powerhead 27-832934A00
0 DIAPHRAGM KIT, Fuel Pump 21-857005A1
0 NOT SOLD SEPARATE, Diaphragm NSS
0 NOT SOLD SEPARATE, Retainer NSS
0 NOT SOLD SEPARATE, Spring NSS
0 NOT SOLD SEPARATE, Cap NSS
0 NOT SOLD SEPARATE, Spring NSS
0 NOT SOLD SEPARATE, Cap-Spring End NSS
0 NOT SOLD SEPARATE, Gasket-Boost NSS
0 NOT SOLD SEPARATE, Gasket-Pulse NSS
0 GASKET, Fuel Pump 27-8M0204705
0 GASKET, Fuel Management Adaptor Plate 27-804680
0 O-RING, (3.237 x .103), Lower End Cap 25-62700
0 SEAL, Cylinder Head 818574
0 GASKET, Thermostat Cover 27-8503181
0 O-RING, (.859 x .139), Crankshaft-Lower 25-35126
0 O-RING, (1.989 x .070), Crankshaft-Upper 25-823683 25-64067
0 GASKET, Cylinder Block 27-8329335
0 GASKET, Exhaust Plate 27-8329344
0 GASKET, Relief Valve Cover and Plate 27-88907003
0 SEAL, Thermostat Comment: Not used for this application 26-854639001 26-854639 Not used for this application

Reservoir Kit-Remote Oil(15943A1)

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Below is the parts list for Mercury 250 (3.0L EFI) Reservoir Kit-Remote Oil(15943A1):

Mercury 250 (3.0L EFI) Reservoir Kit-Remote Oil(15943A1) Diagram
Position No. Part Name OEM Number Supersedes
- RESERVOIR KIT, Oil 15943A1
1 TANK ASSEMBLY, Oil (1.8 Gallon Tank) 15943A2
2 NOT SOLD SEPARATE, BRACKET, Tank Mount Comment: (Also sold with Bracket Kit Below) NSS
3 NOT SOLD SEPARATE, HANDLE/ROPE NSS
- BRACKET KIT, Oil Reservoir Hold Down Comment: (Includes ref. 2) 824954A1
4 CORD/HOOK KIT 12323A1
5 BRACKET, Hold Down 12320
6 SCREW, (#12-11 x .750) 10-79968
7 CAP ASSEMBLY, Oil Reservoir 36-43298A2
8 NOT SOLD SEPARATE, CORD NSS
9 O-RING, (2.225 x .210), Cap 25-11332
10 HOUSING ASSEMBLY, Adapter 816190A4
11 CAP ASSEMBLY, Housing Adaptor 36-43298A2
12 O-RING, (2.225 x .210) 25-11332
13 TUBE, Oil Pick Up 32-99802
14 HOSE, (114.00 Inches) 32-99439
15 TIE STRAP, (8.00 Inches) 54-816311T 54-816311, 54-90077, 54-826785, F1877, F717046-1, F717046, MAF03001, 833188E, 54-F9301, 54-816311100, 54-898101111, 54-898101275

Service/Support Material

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Below is the parts list for Mercury 250 (3.0L EFI) Service/Support Material:

Mercury 250 (3.0L EFI) Service/Support Material Diagram
Position No. Part Name OEM Number Supersedes
- PARTS MANUAL, 200/225/250 (3.0L) EFI 90-803199008
- SERVICE MANUAL 90-884294R01 90-884294
- OPERATION MANUAL, 225/250 GEN II, English 90-10128081
- OWNERS MANUAL, 225/250 EFI 2-Stroke, Spanish 90-10128J70
- OWNERS MANUAL, 225/250 EFI 2-Stroke, French 90-10128D70
- DECAL SET, 225/250 Comment: (2B111193 and up) 37-8M0094904
- DECAL, EPA Label Information Comment: (200) 37-891764A06
- DECAL, EPA Label Information Comment: (225/250) 37-804670A06

Shift Linkage

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Below is the parts list for Mercury 250 (3.0L EFI) Shift Linkage:

Mercury 250 (3.0L EFI) Shift Linkage Diagram
Position No. Part Name OEM Number Supersedes
1 BRACKET ASSEMBLY, Anchor 899080T01
2 LATCH 824016
3 DRIVE SCREW 10-42975
4 CUP, Barrel Retainer 824015
5 SWITCH 87-8M0207794
6 SCREW, (M3.5 x 20) 10-82470620
7 TIE STRAP, (8.00 Inches) 54-816311T 54-816311, 54-90077, 54-826785, F1877, F717046-1, F717046, MAF03001, 833188E, 54-F9301, 54-816311100, 54-898101111, 54-898101275
8 SHIFT RAIL 8M0033943 899081
9 SCREW, (M8 x 25 MM) 8M0006893
10 SHIFT SHAFT, Upper Comment: Long 8M0026171 899084001 Long
10 SHIFT SHAFT, Upper Comment: X Long 8M0026172 899084002 X Long
10 SHIFT SHAFT, Upper Comment: XX Long 8M0188525
11 BUSHING 23-892263
12 NUT, (M6) Stainless Steel 11-401386
13 WASHER, (.255 x .620 x .030) Stainless Steel 12-69056
14 LINK, Shift 899083
15 SLIDE, Shift 8M0085621 899082
16 PIN, Shift Link 8M0000793
17 BUSHING 23-896551
18 WASHER, (.255 x .620 x .030) Stainless Steel 12-69056
19 NUT, (M6) Stainless Steel 11-401386
20 PIN, Bow Tie Clip 8M0001157

Solenoid Plate

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Below is the parts list for Mercury 250 (3.0L EFI) Solenoid Plate:

Mercury 250 (3.0L EFI) Solenoid Plate Diagram
Position No. Part Name OEM Number Supersedes
- NOT SOLD SEPARATE, Electrical Plate Assembly-Complete NSS
1 PLATE 858366T2
2 SOLENOID ASSEMBLY, (#10-32 / .3125-18 Terminals) 89-817109A2
3 GROMMET 25-822179
4 WASHER, (.281 x .500 x .060) Stainless Steel 12-8M0204649
5 SCREW, (M6 x 25 MM) 10-82129125
6 BUSHING 23-8M0214955
7 RELAY ASSEMBLY 8M0207773
8 NOT SOLD SEPARATE, Decal-Trim Relay NSS
9 BRACKET 828102
10 BUSHING 23-8M0214955
11 GROMMET 25-818967
12 SCREW, (M6 x 10) 10-82129110
13 TIE STRAP, (8.00 Inches) 54-816311T 54-816311, 54-90077, 54-826785, F1877, F717046-1, F717046, MAF03001, 833188E, 54-F9301, 54-816311100, 54-898101111, 54-898101275
14 CLIP 54-828991T 54-828991
15 CLIP, (1.00) 54-858755
16 HARNESS ASSEMBLY, Fuse - 100 Ampere 84-878231A6
17 HARNESS ASSEMBLY, Trim 84-819514T21 84-819514A21
18 HARNESS ASSEMBLY, Engine 84-892973T01
19 FUSE, Mini - Yellow - 20 Ampere Comment: (20 AMP) 88-832969T20 88-832969 20 (20 AMP)
19 FUSE, Mini - Tan - 5 Ampere Comment: (5 AMP) 88-832969T05 88-832969 5 (5 AMP)
20 COVER, Fuse 858754
- HARNESS ASSEMBLY (TPS) 879346A41 84-878073A 2
- HARNESS ASSEMBLY, Encoder, Crank Position Sensor 84-879964A2
- HARNESS ASSEMBLY, Alternator, Alternator 84-881262A2
21 CABLE ASSEMBLY, Starter 84-882829A1
22 CABLE ASSEMBLY, Battery - Positive 84-88439A46
23 NUT, (.312-18) 11-8M0204668
24 LOCKWASHER, (.312) 13-53166
25 CAP NUT, 10-32,11-813938
26 NUT, Brass 10-32,11-45076
27 CABLE ASSEMBLY, (4.00 Inches) Black 84-88807A16
28 CAP, Female 13540
28 PLUG, Male 13541
29 PCM, Propulsion Control Module Comment: (200) 89790644T 88555741T, 88555741S, 88555729S, 88555721S (200)
29 PCM, Propulsion Control Module Comment: (225) 89790645T 88555742T, 88555742S, 88555727S, 88555711S (225)
29 PCM, Propulsion Control Module Comment: (250) 89790646T 88555743T, 88555743S, 88555735S, 88555728S, 88555712S (250)
30 SCREW, (M6 x 25) 10-82130025
31 WASHER, (.265 x .750 x .048) Stainless Steel 12-65567
32 GROMMET 25-8M0190980
33 BUSHING 23-856954
34 CLIP 54-891520001
35 SCREW, (M6 x 14) 10-82129114
36 BRACKET 892295F01
37 GROMMET 25-8M0190980
38 BUSHING 23-822003
39 SENSOR, Pressure (0 - 100 PSI) 881879T11 881879011, 881879A 6
40 FITTING 22-8M0207782
41 CLIP, (.865) 54-883066
42 CLIP 54-879962
43 SCREW, (M6 x 25) 10-82130025
44 SCREW, (M6 x 12) 10-82130012
45 CABLE ASSEMBLY, Battery - Negative 84-88439A26
46 SCREW, (M8 x 20) 10-81893420
47 HARNESS ASSEMBLY (200/3.0L Work) 84-882815A1
48 CONNECTOR ASSEMBLY, Weather Cap 6 Pin 877613A02
49 CONNECTOR ASSEMBLY, Weather Cap - Male 830796A04

Speedometer/Block Pressure System

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Below is the parts list for Mercury 250 (3.0L EFI) Speedometer/Block Pressure System:

Mercury 250 (3.0L EFI) Speedometer/Block Pressure System Diagram
Position No. Part Name OEM Number Supersedes
1 FITTING 22-881866 22-859432
2 TUBING, (52.00 Inches Bulk) (Cut to 44 Inches) 32-85978571
3 COUPLER 22-8M0214971
4 PLUG 22-859732
5 FITTING, Adapter 22-8M0214970
6 TUBING, (52.00 Inches Bulk) (Cut to 5 Inches) 32-85978571
7 TEE, Fitting, To Coil Plate Sensor 22-875207
8 TUBING, (72.00 Inches Bulk) (Cut to 52 Inches) 32-85944975

Starboard Bleed System

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Below is the parts list for Mercury 250 (3.0L EFI) Starboard Bleed System:

Mercury 250 (3.0L EFI) Starboard Bleed System Diagram
Position No. Part Name OEM Number Supersedes
1 TUBING, (38.00 Inches Bulk) (Cut to 15-1/2 Inches) 32-8M0054152 32-856060 65
2 CHECK VALVE, 90 Degree (.0625-27) 21-8592352
3 TUBING, (38.00 Inches Bulk) (Cut to 16-1/2 Inches) 32-8M0054152 32-856060 65
4 TUBING, (38.00 Inches Bulk) (Cut to 15 Inches) 32-8M0054152 32-856060 65
5 CLIP 54-23567
6 SCREW, (#10-16 x .500) 10-878608 10-812832
7 CHECK VALVE 21-8282182
- POWERHEAD ASSEMBLY Comment: (200) 891823A07 891823A04, 891823B04 (200)
- POWERHEAD ASSEMBLY Comment: (225) 883892A07 883892A04, 883892A03, 883892A02 (225)
- POWERHEAD ASSEMBLY Comment: (250) 883894A07 883894A04, 883894A03, 883894A02 (250)

Starter Motor

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Below is the parts list for Mercury 250 (3.0L EFI) Starter Motor:

Mercury 250 (3.0L EFI) Starter Motor Diagram
Position No. Part Name OEM Number Supersedes
1 STARTER MOTOR ASSEMBLY 50-892339T01 50-892339T, 50-853329T
2 NOT SOLD SEPARATE, Thru Bolt NSS
3 GEAR KIT 43-880805A1
4 SOLENOID KIT 809463A1
5 BRUSH SET 8M0065258
6 SCREW AND LOCKWASHER, (.250-20 x .625) Stainless Steel 10-69035
7 CABLE ASSEMBLY, (6.00 Inches) Black 84-93388A1
8 DECAL, Warning 37-8272822
9 LOCKWASHER, (M5) 13-400255
10 NUT, (M5) Stainless Steel 11-400211
11 LOCKWASHER, (.312) 13-8M0204647
12 NUT, (M8) Stainless Steel 11-400213
13 COLLAR 23-8M0034918 23-8M0001391, 56703
14 STOP 8M0043276 879845

Swivel Bracket and Steering Arm

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Below is the parts list for Mercury 250 (3.0L EFI) Swivel Bracket and Steering Arm:

Mercury 250 (3.0L EFI) Swivel Bracket and Steering Arm Diagram
Position No. Part Name OEM Number Supersedes
1 SWIVEL BRACKET ASSEMBLY, Black 1499-8M0102865 1499-8710T20
2 O-RING 25-8M0214926
3 BUSHING 23-818764 23-67669
4 SPACER 23-816039
5 SEAL, Oil (Lower) 26-87735
6 FITTING, Grease 22-8M0169589
7 BUSHING 23-821207 23-99608
8 THRUST WASHER 12-816432
9 YOKE, Bottom 826364T 826364F 1
10 RING, Retaining 53-67684
11 STRIKER PLATE 8M0045383 99630 1
12 LOCKWASHER, (.375) 13-58643
13 NUT, (.375-24) 11-46335
14 SCREW, (.250-28 x .500) 10-64014
15 NOT SOLD SEPARATE, Decal-Serial Overlaminate NSS
16 SENDER ASSEMBLY, Trim 8M0074846 821180A 6
17 SCREW, (#10-24 x .750) 10-852368 10-56682
18 LOCKWASHER, Stainless Steel 10,13-26996
19 WASHER, (.203 x .406 x .040) 12-89302
20 SWIVEL PIN ASSEMBLY, Steering Arm - Stainless Steel 17-8M0132731
21 SCREW, (M12 x 190) 10-8M0141069
22 BUMPER 824998001 824998
23 MOUNT, Upper 8163851
24 WASHER 12-8154371
25 WASHER 12-815436
26 NUT, (M12) 11-896963 11-859129, 11-90099
27 CLAMP 8M0036783 813769
28 SCREW, (M8 x 35) 10-81893435
29 LINK ROD ASSEMBLY 92876A12
30 SCREW, (.375-24 x 1.250) 10-849838 10-14000
31 NUT, (.375-24) Stainless Steel 11-8M0204726
31 NUT, (.375-24) Brass 11-8M0204726
32 WASHER, (.390 x .625 x .062) Stainless Steel 12-37828

Throttle Linkage

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Below is the parts list for Mercury 250 (3.0L EFI) Throttle Linkage:

Mercury 250 (3.0L EFI) Throttle Linkage Diagram
Position No. Part Name OEM Number Supersedes
1 LEVER 8M0040987 825268 2
2 SCREW, (M8 x 35) 10-81893435
3 WASHER 12-36042
4 BUSHING 23-821113
5 SCREW, (M6 x 55) 10-40124
6 NUT, (M6) Stainless Steel 11-400212
7 CAP 42942
8 INSERT 42927
9 NUT, (M6) Stainless Steel 11-401386
10 WASHER 12-35459
11 BUSHING 23-8M0215006
12 LINK, To Cam 8583541

Tools

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Below is the parts list for Mercury 250 (3.0L EFI) Tools:

Mercury 250 (3.0L EFI) Tools Diagram
Position No. Part Name OEM Number Supersedes
0 DIAL INDICATOR TOOL 91-58222A1
0 HARNESS ASSEMBLY, DDT Adaptor (Electricl/Ignition) 84-822560A5
0 FLYWHEEL HOLDER TOOL, Teeth Type 91-52344
0 STAND TOOL, Powerhead 91-827001A1
0 CABLE ASSEMBLY, DDT (Electricl/Ignition) 84-825003A1
0 MULTI-METER KIT, DMT 2004 (Electricl/Ignition) 91-892647A01
0 CAP TOOL, Flywheel Puller 91-24161
0 SWITCH ASSEMBLY (Electricl/Ignition) 91-52024A1
0 TESTER, Eight Chamber (Electricl/Ignition) 91-850439T1
0 GAP TOOL, Single Chamber (Electricl/Ignition) 91-63998A1
0 TIMING LIGHT (Electricl/Ignition) 91-99379
0 GAUGE TOOL (Powerhead) 91-29287
0 SLEEVE (Powerhead) 91-55919
0 LIFTING EYE (Powerhead) 91-904551
0 INSTALLATION TOOL, Lock Ring (Powerhead) 91-93004A2
0 REMOVAL TOOL, Piston Pin Lock Ring (Powerhead) 91-52952T1
0 MANDREL TOOL, Piston Pin (Powerhead) 91-92973A1
0 EXPANDER TOOL, Piston Ring (Powerhead) 91-24697
0 STAND, Powerhead 91-812549T 91-812549
0 COMPRESSOR TOOL, Piston Ring (3.625) (Powerhead) 91-823237T 91-823237
0 TORQUE WRENCH, (0-150 lb-in) 91-66274
0 PULLER PLATE, Universal 91-37241
0 ALIGNMENT TOOL (Trim/Tilt System) 91-112301
0 SPANNER WRENCH (Trim/Tilt System) 91-74951
0 HEAT LAMP (Trim/Tilt System) 91-63209
0 ROD TOOL, Backlash Indicator Flag (Gear Housing) 91-53459
0 INDICATOR TOOL, Backlash (Gear Housing) 91-8M0053505 91-78473
0 DRIVER TOOL, Bearing (Gear Housing) 91-816244
0 REMOVAL TOOL, Bearing (Gear Housing) 91-816245
0 MANDREL, Bearing Driver Cup (Gear Housing) 91-31106T
0 DRIVER TOOL, Bearing Cup (Gear Housing) 91-87120T
0 TOOL, Preload (Gear Housing) 91-14311A04
0 PULLER KIT, Bearing (Gear Housing) 91-31229A7
0 MANDREL (Gear Housing) 91-15755T
0 DRIVE HEAD TOOL (Gear Housing) 91-36569T
0 DRIVER ROD TOOL, Needle Bearings (Gear Housing) 91-37323
0 WRENCH TOOL, Driveshaft Bearing (Gear Housing) 91-36571T
0 INSTALLER TOOL, Bearing (Gear Housing) 91-38628T
0 NUT, (.625-18) (Gear Housing) 11-24156
0 PLATE (Gear Housing) 91-29310
0 WASHER (Gear Housing) 12-34961
0 RETAINING TOOL, Bearing (Gear Housing) 91-43506T
0 WASHER (Gear Housing) 12-54048
0 INSTALLATION TOOL, Cross Pin (Gear Housing) 91-86642
0 ADAPTER KIT, Dial Indicator (Gear Housing) 91-83155
0 HOLDING TOOL, Dial Indicator (Gear Housing) 91-89897
0 DRIVER CUP (Gear Housing) 91-36577T
0 ADAPTOR TOOL, Driveshaft (Gear Housing) 91-61077T
0 HOLDING TOOL, Driveshaft (Gear Housing) 91-56775T
0 DRIVER CUP (Gear Housing) 91-36577T
0 ADAPTOR TOOL, Driveshaft (Gear Housing) 91-61077T
0 HOLDING TOOL, Driveshaft (Gear Housing) 91-56775T
0 FOWARD GEAR INSTALLATION TOOL (Gear Housing) 91-815850
0 INSTALLER TOOL, Needle Bearing - Forward Gear (Gear Housing) 91-86943T
0 NUT TOOL, Gear Housing Cover (Gear Housing) 91-61069T
0 GUIDE PLATE (Gear Housing) 91-816243
0 PULLER, Long, Slide Hammer (Gear Housing) 91-816242
0 MANDREL (Gear Housing) 91-92788T
0 DRIVER (Gear Housing) 91-33491
0 DRIVER, Oil Seal (Gear Housing) 91-31108T
0 DRIVER TOOL, Oil Seal (Gear Housing) 91-817569T 91-817569
0 TOOL, Pinion Locating (Gear Housing) 91-12349A05
0 TOOL, Shimming (Gear Housing) 91-56048001
0 WRENCH TOOL, Pinion Nut (Gear Housing) 91-61067A04
0 PROPELLER SHAFT (Gear Housing) 44-93003
0 PULLER BOLT TOOL, Bearing Carrier (Gear Housing) 91-85716
0 PULLER JAW ASSEMBLY (Gear Housing) 91-46086A1
0 INSTALLATION TOOL, Bearing Adaptor (Gear Housing) 91-18605A2
0 PULLER ASSEMBLY, Slide Hammer (Gear Housing) 91-34569A1
0 GUIDE TOOL, Water Pump Alignment Pins (Gear Housing) 91-821571A1
0 CLAMP TOOL KIT (Fuel System) 91-803146A04 91-803146A 2
0 GAUGE KIT, Air/Fuel Pressure (Fuel System) 91-881833A03 91-881833A 2
0 SEAL KIT, Wire Harness (Electricl) 91-881814A1

Top Cowl

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Below is the parts list for Mercury 250 (3.0L EFI) Top Cowl:

Mercury 250 (3.0L EFI) Top Cowl Diagram
Position No. Part Name OEM Number Supersedes
1 TOP COWL ASSEMBLY, Black 100-889246T86
1 TOP COWL ASSEMBLY, Silver 4001-880012T36 4001-880012T 2
2 SCREW, (M6 x 30) 10-82130030
3 SOUND BLANKET KIT 880014A02 880014A 1
4 NOT SOLD SEPARATE, Sound Blanket-Top NSS
5 NOT SOLD SEPARATE, Sound Blanket-Port NSS
6 WASHER, (.250 External Star) 13-93702
7 COVER 826639T
8 BRACKET ASSEMBLY, Cowl 8M0010389
9 NOT SOLD SEPARATE, Pin NSS
10 RING, Retaining 53-8237951
11 ROLLER 8M0207770
12 GROMMET 25-850685T02 850685002, 25-850685 1
13 BRACKET, Front 8M0036792 821249M 2
14 SCREW, (M6 x 20) 10-82130020
15 BUMPER, Latch 815477
16 PIN, Roll 8155381
17 NUT, (M6) Stainless Steel 11-401366
18 WASHER, (.281 x .500 x .060) Stainless Steel 12-8M0204649
19 RING, Retaining 53-8237951
20 ROLLER 8M0207770
21 WASHER 12-87161
22 NOT SOLD SEPARATE, Decal-Break-In NSS
23 NOT SOLD SEPARATE, Decal-Counter Rotation NSS
- DECAL SET Comment: (Mercury 200) 37-891822A06
- DECAL, (200) 37-897516002
- DECAL, (3.0L) 37-859264017
- DECAL SET Comment: (Mercury 225) 37-809693A06
- DECAL, (225) 37-897517002
- DECAL, (3.0L) 37-859264017
- DECAL SET Comment: (Mercury 250) 37-891877A06
- DECAL, (250) 37-897517003
- DECAL, (3.0L) 37-859264017
- DECAL SET Comment: (Mariner 225 Long) 37-827438A03 37-827438A02 (Mariner 225 Long)
- DECAL SET Comment: (Mariner 225 X-Long) 37-883284A03 37-883284A02 (Mariner 225 X-Long)
- DECAL SET Comment: (Mariner 250) 37-809168A03 37-809168A02 (Mariner 250)

Transom Brackets

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Below is the parts list for Mercury 250 (3.0L EFI) Transom Brackets:

Mercury 250 (3.0L EFI) Transom Brackets Diagram
Position No. Part Name OEM Number Supersedes
- TRANSOM BRACKET KIT 3425-828333A09
1 NOT SOLD SEPARATE, Transom Bracket-Starboard NSS
2 NOT SOLD SEPARATE, Transom Bracket-Port NSS
3 FITTING, Grease, Port 22-8M0169588
4 TILT TUBE 826125A1
5 NUT, (1.00-14) Nylon Insert 11-826135
6 O-RING, (.612 x .103) 25-45711
7 WASHER 13-88750
8 NUT, (.875-14) 11-826164
9 SCREW, (.500-20 x 4.500) 10-8M0149747
9 SCREW, (.500-20 x 5 Inches) 10-8M0204730
10 WASHER, (.530 x .870 x .105) Stainless Steel 12-8M0204665
11 WASHER, (1.5 x 3.05 x 0.13) Stainless Steel 12-8M0204648
12 NUT, (.500-20) 11-82671117
13 LEVER ASSEMBLY, Tilt Lock 8M0115104 8M0115103, 99629T 2
14 SPRING, Tension 24-830899
15 NYLINER 23-65830
16 SPRING, Compression 24-830900
17 KNOB 99633
18 PIN, Groove 17-99615
19 PIN 17-893709 17-99617
20 DECAL, Warning 37-8M0043059

Vapor Separator Components

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Below is the parts list for Mercury 250 (3.0L EFI) Vapor Separator Components:

Mercury 250 (3.0L EFI) Vapor Separator Components Diagram
Position No. Part Name OEM Number Supersedes
1 COVER KIT, Vapor Separator 883245T04 883245T 2
2 FITTING, Straight 22-881740
3 FITTING 22-883249
4 NOT SOLD SEPARATE, Elbow NSS
5 FITTING KIT 22-885186A1
6 O-RING, (.468 x .078) 25-831985 25-885187
7 FILTER 35-885188 35-823501
8 VALVE 883219
9 O-RING 25-8M0062785 25-883209
10 CAP 883220
11 PLUG 19-883208 19-881830
12 SEAL 26-883248
13 GASKET 27-883252
14 REGULATOR 883257T1
15 O-RING KIT 25-883593A1
16 WASHER 12-883258
17 SCREW, (M5 x .8) 10-883261
18 SCREW, (M5 x .8) 10-883261
19 WIRE ASSEMBLY 84-881831
20 SCREW AND WASHER, (#8-32 x .750) 1395-808612 1399-5132
21 FLOAT KIT 883253A1
22 SHAFT F10064
23 VALVE/SEAT KIT, Inlet 883247A1
24 SCREW, (M6 x 16) 10-883223
25 FILTER, Fuel-Water Separating 35-18458Q4
26 PROBE 8M0204710
27 BAFFLE 889318002 883260
28 SCREW, (M6 x 16) 10-883223
29 PUMP KIT 881705T1
30 SLEEVE 8M6000589 23-855428
31 BOWL KIT 883256T1
32 SEAL 26-883248
33 PLUG KIT 19-855435A1
34 O-RING 25-8M0062785 25-883209
35 SCREW, (M6 x 8) 10-16955

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For Mercury Owners:

To assist you in maintaining and repairing your marine engines, we hope the following resources may be of use:

About JLM Marine

Founded in 2002, JLM Marine has established itself as a dedicated manufacturer of high-quality marine parts, based in China. Our commitment to excellence in manufacturing has earned us the trust of top marine brands globally.

As a direct supplier, we bypass intermediaries, which allows us to offer competitive prices without compromising on quality. This approach not only supports cost-efficiency but also ensures that our customers receive the best value directly from the source.

We are excited to expand our reach through retail channels, bringing our expertise and commitment to quality directly to boat owners and enthusiasts worldwide.

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