Mercury 250 LONG (3.0L)(EFI) (0T861319 & Up) Outboard Motor Parts Diagram & Catalog – Free PDF Download

by JLM Marine 30 Apr 2025 0 Comments

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

Accessories

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

Part Name	OEM Number	Supersedes
FLUSH COUPLING	22-852400	56-820386A55
DECK FILL KIT, Oil	15969A3
SWITCH/LANYARD KIT	87-19674Q2
FLUSHING ATTACHMENT	44357Q2
HOSE ASSEMBLY, Fuel	32-858610A31	32-858610A10, 32-16789A18
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)
MERCATHODE KIT	88334A2
HOSE EXTENSION KIT	41729A3
RESERVOIR KIT, Oil	15943A1
TRIM REDUCER KIT	858915A1

Attenuator/Flywheel Cover

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

Position No.	Part Name	OEM Number	Supersedes
1	COVER, Flywheel Comment: SN# 0T979999 & Below	892854T01	880009T02, 880009T 1 SN# 0T979999 & Below
1	COVER, Flywheel Comment: SN# 0T980000 & Up	892854T01	880009T02, 880009T 1 SN# 0T980000 & Up
2	GROMMET, (.88 Inside Diameter)	25-13467
3	GROMMET Comment: SN# 0T979999 & Below	25-8M0153609
3	GROMMET Comment: SN# 0T980000 & Up	25-8M0153609
4	PLUG Comment: SN# 0T979999 & Below	19-89219001
4	PLUG Comment: SN# 0T980000 & Up	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 Comment: (Start In Gear)	37-881865	37-825064 (Start In Gear)
14	SCREW, (#10-16 x .750)	10-69570

Bottom Cowl

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

Position No.	Part Name	OEM Number	Supersedes
1	BOTTOM COWL, Port Comment: (PORT)	113-850302A1
2	PLUG	854367001	854367
3	BOTTOM COWL, Starboard Comment: (STBD.)	113-850301A1
4	SEAL, (44.00 Inches)	8M0109218
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, Cowl	852361T1
24	WAVE WASHER	13-29402

Coil Plate

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

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	54-828991T	54-828991
6	SPARK PLUG	33-941
7	HARNESS ASSEMBLY, Coil	84-882757T1
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 Comment: SN# 0T979999 & Below	22-8M0207782
16	FITTING Comment: SN# 0T980000 & Up	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

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

Position No.	Part Name	OEM Number	Supersedes
1	CRANKSHAFT ASSEMBLY	482-9784A11
2	NOT SOLD SEPARATE, Wear Sleeve	NSS
3	BEARING, Ball (LOWER)	30-67923T
4	RING	53-67446
5	RING Comment: SN# 0T979999 & Below	39-843198T01	39-843198001, 39-816106 SN# 0T979999 & Below
5	RING, Seal Comment: SN# 0T980000 & Up	39-843198T01	39-843198001, 39-816106 SN# 0T980000 & Up
6	KEY, Woodruff	28-91800
7	O-RING, (.859 x .139)	25-35126
8	RACE ASSEMBLY	31-88270A02
9	NOT SOLD SEPARATE, Needle Roller	NSS
10	PISTON Comment: (STBD-STANDARD)	700-858295T14	700-858295T 1 (STBD-STANDARD)
10	PISTON Comment: (PORT-STANDARD)	700-858294T14	700-858294T 1 (PORT-STANDARD)
10	PISTON ASSEMBLY Comment: (STARBOARD)(.015 O/S)	700-878572A2
10	PISTON ASSEMBLY Comment: (PORT)(.015 O/S)	700-878571A2
10	PISTON ASSEMBLY Comment: (STARBOARD)(.030 O/S)	700-878574A2
10	PISTON ASSEMBLY Comment: (PORT)(.030 O/S)	700-878573A2
11	RING	40-841202
12	RING SET, Piston	39-858772A12
12	RING SET, Piston Comment: (.015 O/S)	39-875252A12	39-856939A12, 39-826293A12 (.015 O/S)
12	RING SET, Piston Comment: (.030 O/S)	39-875257A12	39-826297A12, 39-856940A12 (.030 O/S)
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/CAGE KIT	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	883894A07	883894A04, 883894A03, 883894A02

Cylinder Block and End Cap

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

Position No.	Part Name	OEM Number	Supersedes
1	CYLINDER BLOCK	885-899162A07	885-9811T93
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	PLUG Comment: SN# 0T979999 & Below	19-850309001	19-850309 SN# 0T979999 & Below
10	PLUG, Stop Comment: SN# 0T980000 & Up	19-850309001	19-850309 SN# 0T980000 & Up
11	SCREW, (M8 x 35)	10-81893435
12	SCREW, (M10 x 80)	10-82446180
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 12) Comment: (Flange Head)	10-82130012
28	SCREW, (M6 x 10) Comment: (Socket Head)	10-82494810
29	GROMMET Comment: SN# 0T979999 & Below	25-19565002
29	GROMMET Comment: SN# 0T980000 & Up	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, 54Â°C (130Â°F) (130 Degrees) Comment: SN# 0T947111 & Below	8M0057307	885599004, 885599003, 885599 1 SN# 0T947111 & Below
37	THERMOSTAT, 54 Degree C/130 Degree F Comment: SN# 0T947112 & Up	8M0057307	885599004, 885599003, 885599 1 SN# 0T947112 & Up
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, (.351 x .072)	25-896699	25-888814
44	SCREW, (M8 x 14)	10-81893414
45	FITTING, Elbow 45 Degree (1.25)	22-782792
46	CLAMP	8266241
47	SCREW, (M6 x 12)	10-82130012
48	LEVER, TPI	8583561
49	SCREW, (M6 x 25)	10-82130025
50	BUSHING	23-856954
51	GROMMET	25-8M0190980
52	WASHER, (.265 x .750 x .048) Stainless Steel	12-65567
53	SCREW, (M5 x 45) Stainless Steel	10-40011113
54	INDICATOR, Throttle Position	8M6005165
55	LINK	8M0084743
56	CLAMP	54-858902
57	COVER	8582261
58	BRACKET	8544862
59	CLAMP, (25.6 mm)	54-855228	54-888988014
60	FITTING	22-8533394
61	HOSE (STARBOARD)	32-8404461
62	HOSE (PORT)	32-8404462
63	SCREW, (M8 x 20)	10-81893420
-	GASKET SET, Powerhead	27-832934A00
-	POWERHEAD ASSEMBLY	883894A07	883894A04, 883894A03, 883894A02

Driveshaft Housing and Exhaust Tube

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

Position No.	Part Name	OEM Number	Supersedes
1	HOUSING ASSEMBLY, Driveshaft	3518-832937A06	3518-832937A05, 3518-832937A 3, 3518-832937A 4
2	STUD, (M12 x 52)	16-8M0008031	16-856983, 16-822257
3	SCREW, (M12 x 35), Internal Hex	10-892860	10-40091 35
3	SCREW, (M12 x 35), External Hex	10-857136
4	GROMMET	25-8331231
5	WASHER, (.500 x .810 x .090) Stainless Steel	12-856982
6	NUT, (M12 x 1.75)	11-896895	11-857008
7	PLUG	19-64649
8	SCREW, (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	12-847541
12	MOUNT	8M0055931	840361T, 840361
13	WASHER	12-825190
14	NUT	11-896602	11-815434, 11-815434002
15	CLAMP	8186442
16	SCREW, (M8 x 40)	10-84036240
17	LOCKWASHER, Internal Tooth	13-72521
18	COVER, Black	8M0001136	818645F 1
19	SCREW, (#10-16 x .440)	10-69079
20	SEAL	8329321
21	TUBE ASSEMBLY, Exhaust	833116A4
22	NOT SOLD SEPARATE, Strainer	NSS
23	SCREW, (M8 x 35)	10-81893435
24	TUBE, Water	32-8M0042785	32-832941 7
25	SEAL Comment: SN# 0T979999 & Below	832940001	832940 SN# 0T979999 & Below
25	SEAL Comment: SN# 0T980000 & Up	832940001	832940 SN# 0T980000 & Up
26	CLAMP	8329391
27	SCREW, (.250-20 x .500) Stainless Steel	10-41508
28	SCREW, (M8 x 35)	10-81893435

Exhaust Plate

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

Position No.	Part Name	OEM Number	Supersedes
1	PLATE ASSEMBLY, Exhaust	840192T14
2	GASKET	27-8329335
3	GASKET (LOWER)	27-8329344
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	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 ref.'s 44 and 45)	850306A04	850306 1 (Includes ref.'s 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	NUT, (M6) Stainless Steel	11-401386
32	SHIFT LINK Comment: SN# 0T979999 & Below	883142A03	883142A 2 SN# 0T979999 & Below
32	SHIFT LINK KIT Comment: SN# 0T980000 & Up	883142A03	883142A 2 SN# 0T980000 & Up
33	SLIDE	8539683
34	NUT, (M6) Stainless Steel	11-401386
35	BUSHING	23-42994
36	SHIFT SHAFT, Upper	8M0036408	896669001, 824070 1
37	BUSHING	23-48237
38	COUPLING	43585
39	FLUSH HOSE KIT (INLET)	32-859626A1
40	GROMMET Comment: SN# 0T979999 & Below	25-12602002
40	GROMMET Comment: SN# 0T980000 & Up	25-12602002
41	WASHER	12-35459
42	HOSE, (57.00 Inches Bulk) (Cut to 3 Inches)	32-8M0108355	32-8M0047428, 32-830756109, 32-99127109, 32-877821
43	FITTING, Straight	22-858855
44	PLATE	888910
45	SCREW, (M5 x 12)	10-82239312
46	PLUG, Pipe (.125-27) Brass	22-328022
-	GASKET SET, Powerhead	27-832934A00
-	POWERHEAD ASSEMBLY	883894A07	883894A04, 883894A03, 883894A02

Flywheel/Alternator

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

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 Management

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

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 Comment: SN# 0T979999 & Below	25-855362001	25-855362 SN# 0T979999 & Below
6	GROMMET Comment: SN# 0T980000 & Up	25-855362001	25-855362 SN# 0T980000 & Up
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 Comment: SN# 0T979999 & Below	27-804679004	27-804679 3 SN# 0T979999 & Below
11	GASKET Comment: SN# 0T980000 & Up	27-804679004	27-804679 3 SN# 0T980000 & Up
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, (.351 x .072)	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	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	54-8M0024808
56	SCREW, (M6 x 40)	10-82130040
-	GASKET SET, Powerhead	27-832934A00
-	POWERHEAD ASSEMBLY	883894A07	883894A04, 883894A03, 883894A02

Fuel Pump

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

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	TUBING, (34.00 Inches Bulk) (Cut to 15 Inches) To Elbow on Plenum	32-85583464
30	TUBING, (34.00 Inches Bulk) (Cut to 28 Inches) To Oil Pump	32-85583464
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	883894A07	883894A04, 883894A03, 883894A02

Gear Housing(Driveshaft)(Torque Master)

Below is the parts list for Mercury 250 LONG (3.0L)(EFI) Gear Housing(Driveshaft)(Torque Master):

Position No.	Part Name	OEM Number	Supersedes
-	GEAR HOUSING ASSEMBLY, Complete	1689-842739T13	1689-842739T02, 1689-842739T05, 1689-842739T04, 1689-842739T12, 1689-842739T08
1	GEAR HOUSING ASSEMBLY, Basic	1689-842739T16	1689-842739T03
2	PIN	17-379721
3	FILLER BLOCK	821526001	821526
4	ANODE	97-826134Q	826134, 826134A 1
5	SCREW, (M6 x 40)	10-4000333
6	NUT, (M6) Stainless Steel	11-401386
7	BEARING ASSEMBLY, Roller	31-42647A1
8	PIN, Dowel - Without Hole (.375 x .625)	17-43044
9	SCREW KIT, (.375-16 x .250) Drain	10-79953Q04
10	SEAL	12-191833
11	PITOT TUBE	859402
12	SEAL, Oil	26-8M0204708
13	FITTING	22-881866	22-859432
14	COVER	858934
15	GASKET	27-858935
16	O-RING, (.799)	25-8M0214927
17	SCREW, (M6 x 16)	10-82130016
18	SCREW, (M6 x 16)	10-82130016
19	NOT SOLD SEPARATE, Pinion Gear (1.75:1 - 12/21)(Part of 43-828168T3)	NSS
20	WASHER	12-92721
21	NUT, (.625-18)	11-35921
22	WASHER	12-77674
23	SHIFT SHAFT (LOWER)	824145
24	KEY	28-8M0204723
25	DRIVESHAFT	45-848831
26	SHIM ASSEMBLY	15-8M0063268
27	BEARING, Tapered Roller	31-8M0146553
28	NOT SOLD SEPARATE, Cup	NSS
29	SHIM SET (006 THRU 048)	15-42637A1
30	BEARING, Roller	31-8M0146566
31	NOT SOLD SEPARATE, Cup	NSS
32	RETAINER	8245191
33	CARRIER ASSEMBLY	8M0192207
34	O-RING, (2.175 x .175)	25-8M0142854
35	SEAL, Oil	26-8M0214939
36	SEAL, Oil	26-8M0214939
37	SCREW, (M6 x 16)	10-82130016
38	PUMP ASSEMBLY, Water	817275A1
39	SEAL KIT	26-816575A2
40	GASKET	27-430331
41	GASKET	27-8172771
42	FACEPLATE	8M0204709
43	IMPELLER	47-43026T2
44	COUPLING ASSEMBLY	832942A1
45	O-RING, (.796 x .139)	25-8M0204645
46	O-RING, (1.046)	25-8M0204654
47	DRIVESHAFT ASSEMBLY	45-848832A1
48	COUPLING	823902
-	SEAL KIT, Gear Housing	26-816575A4

Gear Housing, Propeller Shaft - Torque Master

Below is the parts list for Mercury 250 LONG (3.0L)(EFI) Gear Housing, Propeller Shaft - Torque Master:

Position No.	Part Name	OEM Number	Supersedes
-	GEAR HOUSING ASSEMBLY, Complete	1689-842739T13	1689-842739T02, 1689-842739T05, 1689-842739T04, 1689-842739T12, 1689-842739T08
1	GEAR HOUSING ASSEMBLY, Basic	1689-842739T16	1689-842739T03
2	SHIFT CRANK	8M0226861
3	SPOOL ASSEMBLY	8M0235940
4	NOT SOLD SEPARATE, Shift Spool	NSS
5	NOT SOLD SEPARATE, Sleeve	NSS
6	NOT SOLD SEPARATE, Cotter Pin	NSS
7	SHIM SET	15-47397A1
8	GEAR SET, Forward/Pinion	43-859321T04	43-828168T 3
9	BEARING ASSEMBLY	31-828437A2
10	NOT SOLD SEPARATE, Cup	NSS
11	BEARING, Needle	31-30895T
12	RING, Retaining	53-856823
13	CLUTCH	52-848878T	52-848878, 52-840241
14	PIN, Detent	17-78909
15	PIN, Cross	17-848838
16	SPRING	24-78962
17	PROPELLER SHAFT	44-848829
18	GEAR, Reverse	43-8M0192235
19	THRUST SPACER	23-8241081
20	BEARING, Ball	30-88957T
21	RING, Thrust	681001
22	O-RING	25-8M0214920
23	CARRIER ASSEMBLY, Bearing	848840A1
24	BEARING, Roller	31-817072
25	RING, Snap	53-817071
26	SEAL, Oil	26-815565
27	KEY	30281A1
28	FITTING KIT, Magnetic, Plug Fill/Drain Comment: SN# 0T979999 & Up	22-8M0058389	22-67892A06 SN# 0T979999 & Up
28	PLUG KIT, Drain (Magnetic) Comment: SN# 0T980000 & Up	22-8M0058389	22-67892A06 SN# 0T980000 & Up
29	SEAL	12-191833
30	TAB WASHER	14-79447
31	RETAINER	8M2011027	79448
32	SCREW, (.437-14 x 1.750)	10-8M0204686
33	ANODE KIT	97-76214Q5
-	SEAL KIT, Gear Housing	26-816575A6

Oil Injection Components

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

Position No.	Part Name	OEM Number	Supersedes
1	TANK ASSEMBLY	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 Comment: SN# 0T979999 & Below	25-855362001	25-855362 SN# 0T979999 & Below
10	GROMMET Comment: SN# 0T980000 & Up	25-855362001	25-855362 SN# 0T980000 & Up
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

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

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
-	POWERHEAD ASSEMBLY	883894A07	883894A04, 883894A03, 883894A02

Power Trim Components

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

Position No.	Part Name	OEM Number	Supersedes
-	POWER TRIM, Complete	855998A11	855998A08, 855998A07, 855998A10, 855998A09, 855998A05, 855998A 3
1	TRIM MOTOR	878265A4
2	NOT SOLD SEPARATE, Armature	NSS
3	NOT SOLD SEPARATE, End Frame	NSS
4	SCREW, (M6 x 30)	10-82494830
5	LOCKWASHER, (M6)	13-400256
6	DRIVESHAFT	8782451
7	PO CHECK KIT	878410A1
8	MANUAL RELEASE ASSEMBLY Comment: (Incls. Ref. #26)	893929A01	813442A 2 (Incls. Ref. #26)
9	SHAFT KIT	8M0142997
10	PIN	17-878267	17-44431
11	TILT CYLINDER ASSEMBLY	878235A03	878235A02, 878235A 1
12	GUIDE KIT Comment: (Incls. Ref. #26)	878239A02	878239A 1 (Incls. Ref. #26)
13	O-RING KIT Comment: (Incls. Ref. #26)	8M0142999
14	SHOCK ROD KIT Comment: (Incls. Ref. #26)	8M0168219
15	PISTON ASSEMBLY, Memory	8M0143000
16	REPAIR KIT, Check Valve Comment: (Incls. Ref. #26)	878406A02	878406A 1 (Incls. Ref. #26)
17	PISTON ASSEMBLY	878414T01	878414A 1
18	PISTON ASSEMBLY	878413A1
19	GUIDE 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 Comment: SN# 0T979999 & Below	99625002
32	SHAFT Comment: SN# 0T980000 & Up	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

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

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 & Plate	27-88907003
0	SEAL, Thermostat Comment: (Not used for this application)	26-854639001	26-854639 (Not used for this application)

Service/Support Material

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

Position No.	Part Name	OEM Number	Supersedes
0	PARTS MANUAL, 250 EFI Long (3.0L)	90-891884004
0	OWNERS MANUAL Comment: 2004	90-10128041
0	OWNERS MANUAL Comment: 2005	90-10128050
0	DECAL, EPA Label Information Comment: 2004	37-804670A04
0	DECAL, EPA Label Information Comment: 2005	37-804670A05

Solenoid Plate

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

Position No.	Part Name	OEM Number	Supersedes
1	PLATE	858366T2
2	SOLENOID ASSEMBLY, (#10-32 / .3125-18 Terminals)	89-817109A2
3	GROMMET	25-822179
4	SCREW, (M6 x 25)	10-82129125
5	BUSHING	23-8M0214955
6	RELAY ASSEMBLY	8M0207773
7	NOT SOLD SEPARATE, Decal	NSS
8	BRACKET	828102
9	BUSHING	23-8M0214955
10	GROMMET	25-818967
11	HARNESS ASSEMBLY, Engine Wiring	84-880005T2
12	FUSE, Mini - Yellow - 20 Ampere Comment: (20 AMP)	88-832969T20	88-832969 20 (20 AMP)
12	FUSE, Mini - Tan - 5 Ampere Comment: (5 AMP)	88-832969T05	88-832969 5 (5 AMP)
13	COVER, Fuse	858754
-	HARNESS ASSEMBLY (TPS)	879346A41	84-878073A 2
-	HARNESS ASSEMBLY, Encoder, Crank Position Sensor	84-879964A2
-	HARNESS ASSEMBLY, Alternator, Alternator	84-881262A2
14	SCREW, (M6 x 14)	10-82129114
15	J CLIP	54-8M0024808
16	CABLE ASSEMBLY	84-882830A1
17	SCREW, (M6 x 12)	10-82130012
18	HARNESS ASSEMBLY, Trim	84-819514T18
19	HARNESS ASSEMBLY, Digital Adaptor	84-859244T1
20	HARNESS ASSEMBLY, Fuse - 100 Ampere	84-878231A6
21	WASHER, (.281 x .500 x .060) Stainless Steel	12-8M0204649
22	CAP NUT,	10-32,11-813938
23	NUT, (.312-18)	11-8M0204668
24	NUT, Brass	10-32,11-45076
25	LOCKWASHER, (.312)	13-53166
26	CLIP, (1.00)	54-858755
27	CLIP	54-828991T	54-828991
28	PCM, Propulsion Control Module Comment: SN# 0T920525 & Below	89790646T	88555743T, 88555743S, 88555735S, 88555728S, 88555712S SN# 0T920525 & Below
28	PCM, Propulsion Control Module Comment: SN# 0T920526 & Up	89790646T	88555743T, 88555743S, 88555735S, 88555728S, 88555712S SN# 0T920526 & Up
29	SCREW, (M6 x 25)	10-82130025
30	BUSHING	23-856954
31	GROMMET	25-8M0190980
32	WASHER, (.265 x .750 x .048) Stainless Steel	12-65567
33	CLIP	8590881
34	SCREW, (M6 x 10)	10-82129110
35	SENSOR KIT, (100 PSI), PRESSURE	881879A2
36	FITTING	22-8M0207782
37	CLIP, (.865)	54-883066
38	BRACKET	859313
39	GROMMET	25-818967
40	BUSHING	23-8M0214955
41	SCREW, (M6 x 25)	10-82130025
42	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
43	CABLE ASSEMBLY, (4.00 Inches) Black	84-88807A16
44	SCREW, (M8 x 20)	10-81893420
45	CABLE ASSEMBLY, Battery - Negative	84-88439A26
45	CABLE ASSEMBLY, Battery - Positive	84-88439A25
46	CONNECTOR ASSEMBLY	832948A1
47	CONNECTOR, 6 Pin Plug	881065A1
48	BOOT, Insulator - Red	85-8500671
-	CAP, Female	13540

Speedomter/Block Pressure System

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

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

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

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	883894A07	883894A04, 883894A03, 883894A02

Starter Motor

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

Position No.	Part Name	OEM Number	Supersedes
1	STARTER MOTOR ASSEMBLY Comment: SN# 0T960098 & Below	50-892339T01	50-892339T, 50-853329T SN# 0T960098 & Below
1	STARTER MOTOR ASSEMBLY Comment: SN# 0T960099 & Up	50-892339T01	50-892339T, 50-853329T SN# 0T960099 & Up
2	THRU BOLT	10-803005
3	GEAR KIT	43-880805A1
4	SOLENOID KIT	809463A1
5	SCREW AND LOCKWASHER, (.250-20 x .625) Stainless Steel	10-69035
6	CABLE ASSEMBLY, (6.00 Inches) Black	84-93388A1
7	DECAL, Warning, High Voltage	37-8272822
8	LOCKWASHER, (M5)	13-400255
9	NUT, (M5) Stainless Steel	11-400211
10	LOCKWASHER, (.312)	13-8M0204647
11	NUT, (M8) Stainless Steel	11-400213
12	COLLAR	23-8M0034918	23-8M0001391, 56703
13	STOP	8M0043276	879845

Swivel Bracket and Steering Arm

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

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	814084F1
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	17-67706A55
21	SCREW, (M12 x 175)	10-8M0000518	10-816386 1
22	SPACER	23-840193
23	WASHER, (12.80 mm x 24.0 mm x 2.4 mm) Stainless Steel	12-4002321
24	NUT, (M12)	11-896963	11-859129, 11-90099
25	LINK ROD ASSEMBLY	92876A12
26	SCREW, (.375-24 x 1.250)	10-849838	10-14000
27	NUT, (.375-24) Stainless Steel	11-8M0204726
28	WASHER, (.390 x .625 x .062) Stainless Steel	12-37828

Throttle Linkage

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

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	BUSHING	23-8M0215006
11	LINK, To Cam	8583541
12	BRACKET	824010T05	824010 2
13	LATCH	824016
14	DRIVE SCREW	10-42975
15	CUP, Barrel Retainer	824015
16	SCREW, (M8 x 25) Stainless Steel	10-82155025
17	CLAMP	54-859172
18	SCREW, (M8 x 25) Stainless Steel	10-82155025
19	GUIDE, Roller	8M0039052	896662, 854653 1
20	SWITCH	87-8M0207794
21	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
22	SCREW, (M3.5 x 20)	10-82470620
23	WASHER	12-43430
24	WASHER	12-35459
25	WASHER	12-36001

Tools

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

Part Name	OEM Number	Supersedes
CARTRIDGE Comment: SN# 0T979999 & Below	91-880118A04	91-880118A03, 91-880118A 2 SN# 0T979999 & Below
DDT CARTRIDGE Comment: SN# 0T980000 & Up	91-880118A04	91-880118A03, 91-880118A 2 SN# 0T980000 & Up
DIAL INDICATOR TOOL	91-58222A1
HARNESS ASSEMBLY, DDT Adaptor Comment: (ELECTRICAL/IGNITION)	84-822560A5
HOLDER TOOL	91-52344
STAND TOOL, Powerhead	91-827001A1
CABLE ASSEMBLY, DDT Comment: (ELECTRICAL/IGNITION)	84-825003A1
DIGITAL DIAGNOSTIC TESTER Comment: (ELECTRICAL/IGNITION)	91-823686A2
TACH MULTI METER, DMT 2000 Digital Comment: (ELECTRICAL/IGNITION) SN# 0T979999 & Below	91-854009A3
MULTI-METER KIT, DMT 2004 Comment: (ELECTRICAL/IGNITION) SN# 0T980000 & Up	91-892647A01
CAP TOOL, Flywheel Puller	91-24161
SWITCH ASSEMBLY Comment: (ELECTRICAL/IGNITION)	91-52024A1
TESTER, Eight Chamber Comment: (ELECTRICAL/IGNITION)	91-850439T1
GAP TOOL, Single Chamber Comment: (ELECTRICAL/IGNITION)	91-63998A1
TIMING LIGHT Comment: (ELECTRICAL/IGNITION)	91-99379
GAUGE TOOL Comment: (POWERHEAD)	91-29287
SLEEVE Comment: (POWERHEAD)	91-55919
LIFTING EYE Comment: (POWERHEAD) SN# 0T979999 & Below	91-904551
LIFTING EYE Comment: (POWERHEAD) SN# 0T980000 & Up	91-904551
INSTALLATION TOOL, Lock Ring Comment: (POWERHEAD)	91-93004A2
REMOVAL TOOL, Piston Pin Lock Ring Comment: (POWERHEAD)	91-52952T1
MANDREL TOOL, Piston Pin Comment: (POWERHEAD)	91-92973A1
EXPANDER TOOL, Piston Ring Comment: (POWERHEAD)	91-24697
STAND, Powerhead Comment: (POWERHEAD)	91-812549T	91-812549 (POWERHEAD)
COMPRESSOR TOOL, Ring Comment: (POWERHEAD)	91-823237T	91-823237 (POWERHEAD)
TORQUE WRENCH, (0-150 lb-in)	91-66274
PULLER PLATE	91-37241
ALIGNMENT TOOL Comment: (TRIM/TILT SYSTEM)	91-112301
SPANNER WRENCH Comment: (TRIM/TILT SYSTEM)	91-74951
HEAT LAMP Comment: (TRIM/TILT SYSTEM)	91-63209
ROD TOOL, Backlash Indicator Flag Comment: (GEAR HOUSING)	91-53459
INDICATOR TOOL, Backlash Comment: (GEAR HOUSING)	91-8M0053505	91-78473 (GEAR HOUSING)
DRIVER TOOL, Bearing Comment: (GEAR HOUSING)	91-816244
REMOVAL TOOL, Bearing Comment: (GEAR HOUSING)	91-816245
MANDREL, Bearing Driver Cup Comment: (GEAR HOUSING)	91-31106T
DRIVER TOOL, Bearing Cup Comment: (GEAR HOUSING)	91-87120T
PRE LOAD TOOL, Bearing Comment: (GEAR HOUSING) SN# 0T979999 & Below	91-14311A04
TOOL, Preload Comment: (GEAR HOUSING) SN# 0T980000 & Up	91-14311A04
PULLER KIT, Bearing Comment: (GEAR HOUSING)	91-31229A7
MANDREL Comment: (GEAR HOUSING)	91-15755T
DRIVE HEAD TOOL Comment: (GEAR HOUSING)	91-36569T
DRIVER ROD TOOL, Needle Bearings Comment: (GEAR HOUSING)	91-37323
WRENCH TOOL, Driveshaft Bearing Comment: (GEAR HOUSING)	91-36571T
INSTALLER TOOL, Bearing Comment: (GEAR HOUSING)	91-38628T
NUT, (.625-18) Comment: (GEAR HOUSING)	11-24156
PLATE Comment: (GEAR HOUSING)	91-29310
WASHER Comment: (GEAR HOUSING)	12-34961
RETAINING TOOL, Bearing Comment: (GEAR HOUSING)	91-43506T
WASHER Comment: (GEAR HOUSING)	12-54048
INSTALL TOOL, Cross Pin Comment: (GEAR HOUSING)	91-86642
ADAPTER KIT, Dial Indicator Comment: (GEAR HOUSING)	91-83155
HOLDING TOOL, Dial Indicator Comment: (GEAR HOUSING)	91-89897
DRIVER CUP Comment: (GEAR HOUSING)	91-36577T
ADAPTOR TOOL, Driveshaft Comment: (GEAR HOUSING)	91-61077T
HOLDING TOOL, Driveshaft Comment: (GEAR HOUSING)	91-56775T
DRIVER CUP Comment: (GEAR HOUSING)	91-36577T
ADAPTOR TOOL, Driveshaft Comment: (GEAR HOUSING)	91-61077T
HOLDING TOOL, Driveshaft Comment: (GEAR HOUSING)	91-56775T
FOWARD GEAR INSTALLATION TOOL Comment: (GEAR HOUSING)	91-815850
INSTALLER TOOL, Needle Bearing - Forward Gear Comment: (GEAR HOUSING)	91-86943T
NUT TOOL, Gear Housing Cover Comment: (GEAR HOUSING)	91-61069T
GUIDE PLATE Comment: (GEAR HOUSING)	91-816243
PULLER JAWS Comment: (GEAR HOUSING)	91-816242
MANDREL Comment: (GEAR HOUSING)	91-92788T
DRIVER Comment: (GEAR HOUSING)	91-33491
DRIVER, Oil Seal Comment: (GEAR HOUSING)	91-31108T
DRIVER TOOL, Oil Seal Comment: (GEAR HOUSING)	91-817569T	91-817569 (GEAR HOUSING)
LOCATION TOOL, Pinion Comment: (GEAR HOUSING) SN# 0T979999 & Below	91-12349A05
TOOL, Pinion Locating Comment: (GEAR HOUSING) SN# 0T980000 & Up	91-12349A05
SHIMMING TOOL, Pinion Gear Comment: (GEAR HOUSING) SN# 0T979999 & Below	91-56048001
TOOL, Shimming Comment: (GEAR HOUSING) SN# 0T980000 & Up	91-56048001
ADAPTOR TOOL, Pinion Nut Comment: (GEAR HOUSING) SN# 0T979999 & Below	91-61067A04
WRENCH TOOL, Pinion Nut Comment: (GEAR HOUSING) SN# 0T980000 & Up	91-61067A04
PROPELLER SHAFT Comment: (GEAR HOUSING)	44-93003
PULLER TOOL Comment: (GEAR HOUSING)	91-85716
PULLER JAW ASSEMBLY Comment: (GEAR HOUSING)	91-46086A1
INSTALLATION TOOL, Bearing Adaptor Comment: (GEAR HOUSING)	91-18605A2
PULLER ASSEMBLY, Slide Hammer Comment: (GEAR HOUSING)	91-34569A1
GUIDE TOOL, Water Pump Alignment Pins Comment: (GEAR HOUSING)	91-821571A1
CLAMP TOOL KIT Comment: (FUEL SYSTEM)	91-803146A04	91-803146A 2 (FUEL SYSTEM)
GAUGE, Air/Fuel Pressure Comment: (FUEL SYSTEM) SN# 0T979999 & Below	91-881833A03	91-881833A 2 (FUEL SYSTEM) SN# 0T979999 & Below
GAUGE KIT, Air/Fuel Pressure Comment: (FUEL SYSTEM) SN# 0T980000 & Up	91-881833A03	91-881833A 2 (FUEL SYSTEM) SN# 0T980000 & Up
SEAL KIT, Wire Harness Comment: (ELECTRICAL)	91-881814A1

Top Cowl

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

Position No.	Part Name	OEM Number	Supersedes
1	TOP COWL ASSEMBLY	4001-880012T1
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	HOOK ASSEMBLY, Rear Latch	850682T4
9	NOT SOLD SEPARATE, Pin	NSS
10	RING, Retaining	53-8237951
11	ROLLER	8M0207770
12	GROMMET Comment: SN# 0T962422 & Below	25-850685T02	850685002, 25-850685 1 SN# 0T962422 & Below
12	GROMMET Comment: SN# 0T962423 & Up	25-850685T02	850685002, 25-850685 1 SN# 0T962423 & Up
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
-	DECAL SET (RED)	37-891877A04

Transom Brackets

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

Position No.	Part Name	OEM Number	Supersedes
1	BRACKET ASSEMBLY, Transom-Starboard	3426-828334T03
2	BRACKET ASSEMBLY, Transom-Port	3425-828333T08
3	FITTING, Grease (PORT)	22-8M0169588
4	TILT TUBE	826125A1
5	NUT, (1.00-14) Brass/Nickel Plate	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
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

Vapor Separator Components

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

Position No.	Part Name	OEM Number	Supersedes
1	COVER KIT	883245T04	883245T 2
2	FITTING, Straight	22-881740
3	FITTING	22-883249
4	NOT SOLD SEPARATE, Elbow	NSS
5	FITTING KIT, Pump Outlet Comment: (Use W/O Filter)	22-855437A2
5	FITTING KIT Comment: (Use with Filter)	22-885186A1
6	O-RING Comment: (Use W/O Filter)	25-8M0062785	25-883209 (Use W/O Filter)
6	O-RING, (.468 x .078) Comment: (Use with Filter)	25-831985	25-885187 (Use with Filter)
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 KIT	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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Mercury / Mercruiser / Mariner Parts from JLM Marine

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.