Skip to content
Exclusive Deal for new customers: Get 10% Off! SHOP NOW

Customer Service: info@jlm-marine.com

Free shipping. No Minimum Purchase

Mercury 125 (4 CYL.) (0T980000 THRU 0T999999) Outboard Motor Parts Diagram & Catalog – Free PDF Download

by JLM Marine 30 Apr 2025 0 Comments
Mercury 125 (4 CYL.) Outboard Motor Parts Diagram & Catalog – Free PDF Download

Accessories

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Accessories:

Mercury 125 (4 CYL.) Accessories Diagram
Position No. Part Name OEM Number Supersedes
- ANTI-ICING KIT, Carburetor 828155A5
- EXTENSION KIT (5 Inch) Comment: (Not for use on Jet Model Outboards) 12092A13
- FLUSHING ATTACHMENT Comment: (Not for use on Jet Model Outboards) 44357Q2
- HOSE ASSEMBLY, Fuel (8 Feet) Comment: (With Quck Disconnect) 32-877680Q8
- HOSE ASSEMBLY, Fuel (12 Feet) Comment: (With Quck Disconnect) 32-877680Q12 32-858620Q12, 32-858620A12, 32-827927A12 (With Quck Disconnect)
- HOSE ASSEMBLY, Fuel (8 Feet) Comment: (With Quck Disconnect Engine End Only) 32-877681Q8
- HOSE ASSEMBLY, Fuel (12 Feet) Comment: (With Quck Disconnect Engine End Only) 32-877681Q12 32-804792Q12, 32-804792Q, 32-858621Q12, 32-858621A12, 32-17146A12 (With Quck Disconnect Engine End Only)
- 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
- TILLER HANDLE ADAPTOR KIT Comment: (Jet 80) 850000A3
- TILLER HANDLE KIT 12022A41
- VISUAL WARNING SYSTEM (Low Oil/Overheat) 17334A2
- REGULATOR KIT, Voltage 88825A6
- FLUSH KIT, Coastal 858566A1

Attenuator Plate

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Attenuator Plate:

Mercury 125 (4 CYL.) Attenuator Plate Diagram
Position No. Part Name OEM Number Supersedes
1 GASKET 27-151724
2 COVER 44342A1
3 CAP 19-815784 22-14685
4 NOT SOLD SEPARATE, Timing NSS
5 NOT SOLD SEPARATE, Decal-Caution-Airbox NSS
6 GASKET 27-828479
7 SCREW, (#10-16 x .600) 10-878609 10-812832 1
8 PLATE ASSEMBLY, Attenuator 44340A2
9 WASHER 12-4002217
10 NUT 11-826365
11 CUP 39519
12 LATCH 98889
13 HOSE, (.187) (26.00 Inches Bulk) (Cut to 1.50 Inch Length) 32-9912878
14 HOSE, (.187) (26.00 Inches Bulk) (Cut to 3.25 Inch Length) 32-9912878
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
15 TIE STRAP, (5.50 Inches) 8M0214940
16 FITTING TEE 22-830285
17 HOSE, (.187) (26.00 Inches Bulk) (Cut to 5.25 Inch Length) 32-9912878
18 LINK, Throttle (Main) 825203T 825203
19 LINK ROD 193859
20 ARM ASSEMBLY 11399A1
21 SCREW, (M5 x 6) 10-40056103
22 WASHER, (.203 x .500 x .032) 12-8M0204666
23 ROLLER 67748
- GASKET SET 27-13461A99

Bleed System

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Bleed System:

Mercury 125 (4 CYL.) Bleed System Diagram
Position No. Part Name OEM Number Supersedes
1 TUBING, (240.00 Inches Bulk) Comment: (Cut to 9.00 Inch Length) 32-892024122 32-99130122 (Cut to 9.00 Inch Length)
2 FITTING, Tee 22-59169003
3 TUBING, (240.00 Inches Bulk) Comment: (Cut to 9.00 Inch Length) 32-892024122 32-99130122 (Cut to 9.00 Inch Length)
4 TUBING, (240.00 Inches Bulk) Comment: (Cut to 4.50 Inch Length) 32-892024122 32-99130122 (Cut to 4.50 Inch Length)
5 TUBING, (240.00 Inches Bulk) Comment: (Cut to 2.50 Inch Length) 32-892024122 32-99130122 (Cut to 2.50 Inch Length)
6 CHECK VALVE 21-149126
7 TUBING, (240.00 Inches Bulk) Comment: (Cut to 2.50 Inch Length) 32-892024122 32-99130122 (Cut to 2.50 Inch Length)
8 TUBING, (240.00 Inches Bulk) Comment: (Cut to 2.50 Inch Length) 32-892024122 32-99130122 (Cut to 2.50 Inch Length)
9 TUBING, (240.00 Inches Bulk) Comment: (Cut to 4.50 Inch Length) 32-892024122 32-99130122 (Cut to 4.50 Inch Length)
10 TUBING, (240.00 Inches Bulk) Comment: (Cut to 2.50 Inch Length) 32-892024122 32-99130122 (Cut to 2.50 Inch Length)
11 TUBING, (240.00 Inches Bulk) Comment: (Cut to 2.50 Inch Length) 32-892024122 32-99130122 (Cut to 2.50 Inch Length)
12 TUBING, (240.00 Inches Bulk) Comment: (Cut to 2.50 Inch Length) 32-892024122 32-99130122 (Cut to 2.50 Inch Length)
13 TUBING, (240.00 Inches Bulk) Comment: (Cut to 6.00 Inch Length) 32-892024122 32-99130122 (Cut to 6.00 Inch Length)
14 TUBING, (240.00 Inches Bulk) Comment: (Cut to 1.50 Inch Length) 32-892024122 32-99130122 (Cut to 1.50 Inch Length)
15 FITTING 22-15133
- POWERHEAD ASSEMBLY 17791T97

Bottom Cowl

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Bottom Cowl:

Mercury 125 (4 CYL.) Bottom Cowl Diagram
Position No. Part Name OEM Number Supersedes
1 BOTTOM COWL ASSEMBLY, Starboard 100-8M0107327
2 GROMMET 25-822556003 25-822556 2
3 SEAL, (36.00 Inches) 8M0109216
4 BOTTOM COWL ASSEMBLY, Port 100-8M0107328 2188-821874A 1
5 GROMMET 25-822555001 25-822555
6 SEAL, (36.00 Inches) 8M0109216
7 SEAL 8560552
8 SWITCH ASSEMBLY 87-8M0042301 87-896620, 87-856990, 87-850691, 87-18286A40
9 FITTING 22-813613
10 TUBING, (.312) (70.00 Inches Bulk) (Cut to 28.00 Inch Length) 32-8M0108349 32-8M0047448, 32-830757130, 32-830757 80
11 CHECK VALVE ASSEMBLY, Drain 21-817519A2
12 SCREW, (M6 x 40) 10-82130040
13 HANDLE 8M0041366 820000A 2
14 BUSHING 23-812707 23-71984, 23-F286818, 23-F286828, F480818
15 WASHER, Wave 13-F2047
16 CAM 8M0001081 889566, F481777, F48177
17 WASHER 12-8M0214930
18 LOCKWASHER, (.250) Stainless Steel 13-26992
19 SCREW, (.250-20 x .620) Stainless Steel 10-28635
20 RETAINER 822363T1
21 NUT, (M6) Stainless Steel 11-401386
22 WASHER 12-8M0214930

Carburetor

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Carburetor:

Mercury 125 (4 CYL.) Carburetor Diagram
Position No. Part Name OEM Number Supersedes
1 CARBURETOR, (WME 111-1) (115) 3301-884586T07 3301-884586T 1
1 CARBURETOR, (WME 111-2) (115) 3301-884586T08 3301-884586T 2
1 CARBURETOR, (WME 111-3) (115) 3301-884586T09 3301-884586T 3
1 CARBURETOR, (WME 111-4) (115) 3301-884586T10 3301-884586T 4
1 CARBURETOR, (125-WME 112-1) 3301-884587T07 3301-884587T 1
1 CARBURETOR, (125-WME 112-2) 3301-884587T08 3301-884587T 2
1 CARBURETOR, (125-WME 112-3) 3301-884587T09 3301-884587T 3
1 CARBURETOR, (125-WME 112-4) 3301-884587T10 3301-884587T 4
2 NOT SOLD SEPARATE, Gasket-Fuel Bowl NSS
3 NOT SOLD SEPARATE, Retaining Ring NSS
4 BOWL, Fuel 1395-811693 1395-9590
5 SHAFT, Throttle (WME-111-1/3/4 and WME 112-1/3/4) 1395-823632
6 SHAFT, Throttle (WME-111-2 and WME 112-2) 1395-8236321
7 LEVER, Throttle 1395-8087461
8 VALVE, Throttle 1395-97241
9 FLOAT 1395-9594
10 SHAFT F10064
11 VALVE, Inlet Needle 10-95951
12 PLUG KIT 1395-811694 1395-9596 1
13 SEAL (Consists of 4 Seals) 1395-802731
14 NOT SOLD SEPARATE, Gasket-Cover Plate NSS
15 GASKET 27-151724
16 SCREW, Throttle Valve 10-F10155
17 SCREW, Cover Plate 1395-811220
18 SCREW AND WASHER, (#8-32 x .750) 1395-808612 1399-5132
19 COVER PLATE 1395-811221
20 JET, Main (.060) (WME-111-1/3/4)(115) 1395-6487
20 JET, Main (.062) (WME-111-2)(115) 1399-4217
20 JET, (.070) (WME-112-1)(125) 1395-6030
20 JET, (.078) (WME-112-2)(125) 1395-6680
20 JET, (.076) (WME-112-3/4)(125) 1399-3796
21 GASKET 1395-808738
22 NOT SOLD SEPARATE, Spring-Idle Needle NSS
23 NOT SOLD SEPARATE, Spring-Throttle Return NSS
24 NOT SOLD SEPARATE, Idle Needle NSS
25 SCREW 1395-823634
- REPAIR KIT, Carburetor Comment: (1 Per Carburetor) 1395-8236354
- GASKET SET, Carburetor Comment: (1 Per Carburetor) 1395-8112231
- GASKET SET 27-13461A99

Co-Pilot

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Co-Pilot:

Mercury 125 (4 CYL.) Co-Pilot Diagram
Position No. Part Name OEM Number Supersedes
- CO-PILOT ASSEMBLY 56-52148A7
1 PILOT ROD 521481
2 NUT ASSEMBLY 11-8M0103848
3 SCREW, (.250-28 x 1.250) 10-56500
4 WASHER 12-77674
5 KNOB, Prong 821621
6 ROD 873491
7 BUSHING 23-521512
8 WASHER, (.323 x .563 x .063) Stainless Steel 12-8M0042642 12-70132
9 NUT, (.312-24) Stainless Steel 11-826709111 11-45592

Crankshaft, Pistons and Connecting Rods

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Crankshaft, Pistons and Connecting Rods:

Mercury 125 (4 CYL.) Crankshaft, Pistons and Connecting Rods Diagram
Position No. Part Name OEM Number Supersedes
1 CRANKSHAFT ASSEMBLY 473-9193T5
2 GEAR ASSEMBLY 43-43019A1
3 BEARING, Ball, Lower 30-43011T
4 KEY, Woodruff 28-91800
5 WEAR SLEEVE 786611
6 O-RING, (.859 x .139) 25-35126
7 RING ASSEMBLY 39-818412A4
8 BEARING ASSEMBLY, Roller 42943A1
9 NOT SOLD SEPARATE, Roller Bearing NSS
10 PISTON ASSEMBLY Comment: (Standard) 2704-826191T4
10 PISTON ASSEMBLY Comment: (.015 Oversize) 2704-821896A3
10 PISTON ASSEMBLY Comment: (.030 Oversize) 2704-821896A4
11 NOT SOLD SEPARATE, Piston Pin NSS
12 LOCK RING 53-857196 40-52035
13 RING KIT, Piston - Standard Comment: (Standard) 39-822321A12 39-822321A 8, 39-824905A12 (Standard)
13 RING KIT, Piston - .015 Oversize Comment: (.015 Oversize) 39-822321A1
13 RING SET, Piston Comment: (.030 Oversize) 39-822321A2
14 CONNECTING ROD ASSEMBLY 646-818846T6
15 WASHER 12-8M0012298 12-812876
16 BEARING, Needle 29-8M0214954
17 SCREW, (.375-24 x 1.250) 10-94320
18 BEARING ASSEMBLY 31-844338A01 31-43012A04
19 NOT SOLD SEPARATE, Roller Bearing NSS
20 BEARING ASSEMBLY, Roller, Upper 31-43013T3
21 SEAL, Oil 26-8M0214932
22 O-RING Comment: (2.112 x .103 Square) 25-858225
22 O-RING, (1.989 x .070) Comment: (1.989 x .070 Round) 25-823683 25-64067 (1.989 x .070 Round)
- GASKET SET 27-13461A99
- POWERHEAD ASSEMBLY 17791T97

Cylinder Block and Crankcase

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Cylinder Block and Crankcase:

Mercury 125 (4 CYL.) Cylinder Block and Crankcase Diagram
Position No. Part Name OEM Number Supersedes
1 CYLINDER BLOCK 877-9191T24
2 SCREW, (M10 x 80) 10-4009680
3 PIN (Bearing Race) 17-8M0036405 17-67296
4 PIN, Dowel 17-43044
5 COVER (Top) 428842
6 COVER (Bottom) 76867
7 SCREW, (M8 x 50) 10-81742750
8 CARRIER 65848
9 GROMMET 25-64872
10 CARRIER ASSEMBLY 813801A1
11 CHECK VALVE 21-42657A3
12 CHECK VALVE 21-891664 21-14653 3
13 STUD, (M10 x 136) 16-892561001 16-889607
14 WASHER, (.406 x .750 x .105) Stainless Steel 12-8M0214963
15 NUT, (M10) 11-40140
16 CHECK VALVE 21-426233
17 NOT SOLD SEPARATE, Plug NSS
18 NOT SOLD SEPARATE, Plug NSS
19 WASHER, (.203 x .500 x .032) 12-8M0204666
20 SCREW, (M8 x 35 MM) 10-82127335
21 BOOT 99162001
22 COVER 1035-9196A2
23 GASKET 27-443284
24 SCREW, (M8 x 35 MM) 10-82127335
25 CLAMP 54-814634
26 SENDER, Temperature 787992
27 RETAINER 889733 44552
28 SCREW, (#10-16 x .600) 10-878609 10-812832 1
29 POPPET VALVE 86596T
30 DIAPHRAGM 648771
31 WASHER 12-94182
32 SCREW, (#10-16 x .750) 10-69570
33 SPRING, (Stainless Steel) 24-42996
34 THERMOSTAT 14586
35 GASKET 27-8M0204714
36 GASKET 27-430068
37 COVER 8M0047619 884297, 42885 3
38 SCREW, (M8 x 35 MM) 10-82127335
38 SCREW, (M8 x 55) 10-81742755
39 PLUG, Pipe (.125-27) Brass 22-328022
40 STUD, (M6 x 44) 16-8161949
41 WASHER, (.187 x .500 x .062) Neoprene 12-8M0204663
42 WING NUT 11-816872
43 REV LIMITER 821889A51 821889A40, 821889A29, 821889A19
44 SCREW, (M6 x 30) 10-82130030
45 HARNESS ASSEMBLY, Adaptor 84-855212A1
46 COUPLING INSERT 22-857175 22-861405
47 COUPLING BODY 22-857176
48 CAP 19-858240 861427
49 TUBING, (.312) (70.00 Inches Bulk) 32-8M0108349 32-8M0047448, 32-830757130, 32-830757 80
50 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
51 FITTING 22-857219
52 FITTING 22-286241
53 TIE STRAP, (11.750 Inches) 54-850181
54 NOT SOLD SEPARATE, Decal-Serialization NSS
55 NOT SOLD SEPARATE, Decal-Serial Overlaminate NSS
- GASKET SET 27-13461A99
- POWERHEAD ASSEMBLY 17791T97

Driveshaft Housing

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Driveshaft Housing:

Mercury 125 (4 CYL.) Driveshaft Housing Diagram
Position No. Part Name OEM Number Supersedes
1 HOUSING ASSEMBLY, Driveshaft 1598-881913T01
1 HOUSING ASSEMBLY, Driveshaft Comment: Jet 1598-881913T02
2 STUD, (M10 x 100) (Long) Comment: Model Version Length Designation: Long =20 In. 16-903501
2 STUD, (M10 x 227) (X-Long) Comment: Model Version Length Designation: X-Long=25 In. 16-9035015
3 STUD, (M10 x 63) (Long) Comment: Model Version Length Designation: Long =20 In. 16-9035012
3 STUD, (M10 x 190) (X-Long) Comment: Model Version Length Designation: X-Long=25 In. 16-8M0034462 16-90350 16 Model Version Length Designation: X-Long=25 In.
4 WASHER, (.406 x .750 x .105) Stainless Steel 12-8M0214963
5 NUT, (M10) 11-40140
6 PICKUP ASSEMBLY, Speedometer 22-85822A4
7 CONNECTOR, 90 Degree - With Vibraseal 22-433351
8 CONNECTOR, Straight 22-85822T
9 MOUNT 881916
10 BOLT, (M12 x 154) 10-898835001 10-42973
11 WASHER, (.875 Inch Outside Diameter) 12-30119
12 NUT, (M12) 11-8M0204662
13 CABLE ASSEMBLY, Ground 88238A10
14 SCREW, (.250-20 x .500) Stainless Steel 10-41508
15 CLAMP 8M0036786 881917
16 NUT 11-35521
17 SCREW, (M8 x 25 MM) 10-889833025
18 COVER 100-8M4500754 8M0000852, 882752
19 SCREW, (#12-24 x .620) 10-88417
20 WASHER, (1.5 x 3.05 x 0.13) Stainless Steel 12-8M0204648
21 WASHER, Neoprene 12-881976
22 SPACER KIT (X-Long) Comment: Model Version Length Designation: X-Long=25 In. 12092A3
23 PIN, Dowel - Without Hole (.375 x .625) (X-Long) (Rear) Comment: Model Version Length Designation: X-Long=25 In. 17-43044
23 PIN, Dowel - With Hole (.375 x .625) (X-Long)(Front) Comment: Model Version Length Designation: X-Long=25 In. 17-8M0084244 17-43043 Model Version Length Designation: X-Long=25 In.
24 PLATE WASHER 892214
25 PLUG, Driveshaft Housing 19-8M0026580 19-889557

Electrical Components

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Electrical Components:

Mercury 125 (4 CYL.) Electrical Components Diagram
Position No. Part Name OEM Number Supersedes
1 PLATE, Electrical 8327531
2 SCREW, (M8 x 30) Stainless Steel 10-40011150
3 WASHER 12-49436
4 BUSHING 23-8502341
5 GROMMET 25-833155
6 SCREW, (M5 x 12) 10-82239312
7 WASHER, (.203 x .406 x .040) 12-89302
8 CLAMP, Connector 8261151
9 CABLE ASSEMBLY (10.00 Inches) 84-88807A44
10 HARNESS ASSEMBLY, Engine 84-850043A2
11 FUSE, Yellow - 20 Ampere 88-812619 88-860608
12 HARNESS ASSEMBLY, Ignition 84-850045A2
13 CABLE ASSEMBLY, Positive - Battery 84-88439A3
14 BOOT, Insulator - Red 85-830233
15 CDM MODULE ASSEMBLY 827509A10 827509A 4
16 CABLE ASSEMBLY, Hi Tension 84-821945A61
17 BOOT/TERMINAL KIT 85-63709A1
18 SPARK PLUG Comment: (NGK #BP8H-N-10) 33-816737Q 33-816737 2 (NGK #BP8H-N-10)
18 SPARK PLUG Comment: (NGK #BPZ8H-N-10) 33-938
19 SCREW, (M6 x 16) 10-82129116
20 SOLENOID ASSEMBLY, (#10-32 / .3125-18 Terminals) 89-817109A2
21 BUSHING 23-8M0214955
22 GROMMET 25-822179
23 NUT, Brass 10-32,11-45076
24 LOCKWASHER, (.312) 13-8M0204647
25 NUT, (.312-18) 11-8M0204668
26 SCREW, (M6 x 25 MM) 10-82129125
27 WASHER, (.281 x .500 x .060) Stainless Steel 12-8M0204649
28 REGULATOR, Voltage 8M0084173 883072T, 854515T 1
29 SCREW, (M6 x 35) 10-82129135
30 J CLIP 54-54457
31 CABLE ASSEMBLY, Battery - Negative 84-88439A4
32 CLAMP 54-834813
33 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
33 TIE STRAP, (4.00 Inches) 56762
34 WASHER 12-36001
35 CABLE ASSEMBLY, (4.00 Inches) Black 84-88807A16
36 PLUG, Male 13541

Exhaust Plate

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Exhaust Plate:

Mercury 125 (4 CYL.) Exhaust Plate Diagram
Position No. Part Name OEM Number Supersedes
1 PLATE, Exhaust 881912T01
2 PIN, Dowel 17-23784
3 RETAINER 881973
4 MOUNT 881915002 881915001
5 SCREW, (M8 x 35 MM) 10-881975
6 BOLT, (M12 x 175) 10-898487 10-42974
7 NUT, (M12) 11-896963 11-859129, 11-90099
8 SPACER (Long) Comment: Model Length Designation Long=20 In. 23-813745 23-43041 Model Length Designation Long=20 In.
8 SPACER (X-Long) Comment: Model Length Designation X Long=25 In. 23-11289
9 COUPLING 43585
10 GASKET 27-430086
11 TUBE, Exhaust 42966T07
12 SCREW, (M8 x 35) Stainless Steel 10-40011151
13 SEAL 8M0039075 42962
14 GROMMET 25-89417004
15 TUBE, Water - Long (13.21 Inches) 32-8M0042791 32-881201 1
15 TUBE, Water - X Long (18.21 Inches) 32-8M0042792 32-881201 2
16 CLAMP 824661
17 SEAL (Upper) 814080001 814080
18 SCREW, (M8 x 45) 10-889833045
19 CLAMP 881918T03 881918T02, 881918T
20 GROMMET 25-19565002
21 BUSHING 23-48237
22 SHIFT SHAFT ASSEMBLY 79932A20
23 SHIFT LINK 42912A3
24 BUSHING 23-48475
25 NUT, (M6) Stainless Steel 11-401386
26 SCREW, (M8 x 35) Stainless Steel 10-40011151
27 SCREW, (M8 x 70) Stainless Steel 10-40011158

Extension Kit

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Extension Kit:

Mercury 125 (4 CYL.) Extension Kit Diagram
Position No. Part Name OEM Number Supersedes
- EXTENSION KIT, Black 12092A13
1 SPACER KIT, Black 12092A3
2 PIN, Dowel - Without Hole (.375 x .625) 17-43044
2 PIN, Dowel - With Hole (.375 x .625) 17-8M0084244 17-43043
3 SHIFT SHAFT ASSEMBLY 853908A1
4 BUMPER, Bottom Yoke 11288001
5 SPACER 23-11289
6 TUBE ASSEMBLY, Water - Extension 17243A1
7 O-RING, (.796 x .139) 25-8M0204645
8 SEAL 26-38970
9 STUD, (M10 x 190) 16-903503
10 STUD, (M10 x 227) 16-903502
11 WASHER, (.453 x .812 x .105) Stainless Steel 12-45176
12 NUT, (M10) 11-40140
13 DRIVESHAFT ASSEMBLY 45-43032A4
14 GASKET, Aluminum Cover 27-430341
15 O-RING, (3.609 x .139) 25-8M0214974
16 O-RING, (1.424 x .103) 25-8M0204681
17 BUMPER, Top Yoke 88882
18 TUBE, Water 32-8M4501430 32-828937 1
19 SEAL 430232

Flywheel and Starter Motor

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Flywheel and Starter Motor:

Mercury 125 (4 CYL.) Flywheel and Starter Motor Diagram
Position No. Part Name OEM Number Supersedes
1 PLUG, Yellow 19-45907
2 COVER ASSEMBLY 812777T1
3 NUT, (M16) 11-42979
4 WASHER 12-33001
5 FLYWHEEL ASSEMBLY 261-878227T2
6 STATOR ASSEMBLY 398-832075A21 398-832075A 4
- CABLE ASSEMBLY 84-11149A27
7 SCREW, (M5 x 30) 10-4013930
8 TRIGGER ASSEMBLY 854513T 834821T
9 STARTER MOTOR ASSEMBLY 50-893892T 50-66015 3
9 STARTER MOTOR ASSEMBLY 50-893892T 50-66015 3
10 COLLAR 23-8M0034918 23-8M0001391, 56703
11 STOP, Rubber 8M0043376 68042
12 CABLE ASSEMBLY, (6.00 Inches) Black 84-93388A1
13 SCREW AND LOCKWASHER, (.250-20 x .625) Stainless Steel 10-69035
14 CABLE ASSEMBLY, (12.5 Inchs) Black 84-93388A8
15 LOCKWASHER, (.250) Stainless Steel 13-26992
16 NUT, (.250-20) 11-64015
17 TIE STRAP, (4.00 Inches) 56762
17 TIE STRAP, (5.50 Inches) 8M0214940
17 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
18 SWIVEL BASE 93254
19 SWIVEL BALL 93421
20 NOT SOLD SEPARATE, Decal-Warning High Voltage NSS
21 DECAL, Caution-Start in Gear (Start In Gear) 37-881865 37-825064

Fuel Pump

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Fuel Pump:

Mercury 125 (4 CYL.) Fuel Pump Diagram
Position No. Part Name OEM Number Supersedes
1 PUMP KIT, Fuel 14360A78
2 DIAPHRAGM KIT 21-857005A1
3 NOT SOLD SEPARATE, Gasket-Boost NSS
4 NOT SOLD SEPARATE, Diaphragm NSS
5 NOT SOLD SEPARATE, Gasket-Pulse NSS
6 NOT SOLD SEPARATE, Spring NSS
7 NOT SOLD SEPARATE, Cap NSS
8 NOT SOLD SEPARATE, Check Valve NSS
9 NOT SOLD SEPARATE, Retainer NSS
10 NOT SOLD SEPARATE, Spring NSS
11 NOT SOLD SEPARATE, Cap NSS
12 GASKET 27-8M0204705
13 BASE 144303
14 PLATE 987752
15 FITTING, Elbow 90 Degree (.125-27 x .250) Nylon 22-996642
16 SCREW, (M5 x 40) 10-82104540
17 SCREW, (M6 x 50), Pump To Block 10-82130050
18 NOT SOLD SEPARATE, Decal-Assembled in Mexico NSS
19 TUBING, (.312) (70.00 Inches Bulk) (Cut to 4.00 Inch Length) 32-8M0108349 32-8M0047448, 32-830757130, 32-830757 80
20 TUBING, (.312) (70.00 Inches Bulk) (Cut to 8.50 Inch Length) 32-8M0108349 32-8M0047448, 32-830757130, 32-830757 80
21 FITTING, Elbow 90 Degree (.125-27 x .250) Nylon (To Crankcase) 22-996642
22 TUBING, (.312) (70.00 Inches Bulk) (Cut to 2.00 Inch Length) 32-8M0108349 32-8M0047448, 32-830757130, 32-830757 80
23 FILTER, Fuel 35-816296Q2
24 CLAMP 54-188871
25 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
25 TIE STRAP, (5.50 Inches) 8M0214940
26 CHECK VALVE (To Oil Pump) 22-8189941
27 MOLDED HOSE 32-822554
28 CONNECTOR 22-822771
29 CONNECTOR 22-822769
30 TUBING, (26.00 Inches Bulk) (Cut to 4.00 Inch Length) 32-85682257
31 GROMMET 25-145093
32 TUBING, (38.00 Inches Bulk) (Cut to 15.00 Inch Length) 32-1430165
33 FLOW RESTRICTOR 19-17608
34 FITTING, Tee 22-830570 22-17768
35 TUBING, (240.00 Inches Bulk) (Cut to 4.50 Inch Length) 32-892024122 32-99130122
36 TUBING, (240.00 Inches Bulk) (Cut to 2.50 Inch Length) 32-892024122 32-99130122
37 TUBING, (38.00 Inches Bulk) (Cut to 1.25 Inch Length) 32-1430165
38 FILTER 35-8M0207786
39 TUBING, (38.00 Inches Bulk) (Cut to 13.00 Inch Length) 32-1430165
40 PUMP ASSEMBLY, Accelerator 14687A4
41 TUBING, (36.00 Inches Bulk) (Cut to 5.25 Inch Length) (To Lower Tee) 32-9912688
42 SCREW, (M6 x 16) 10-4009416
43 WASHER, (.255 x .620 x .030) Stainless Steel 12-69056
44 SOLENOID ASSEMBLY, Enrichner Valve 89-819503A1
45 TUBING, (38.00 Inches Bulk) (Cut to 15.00 Inch Length) 32-1430165
46 TUBING, (36.00 Inches Bulk) (Cut to 11.50 Inch Length) (To Upper Tee) 32-9912688
- GASKET SET 27-13461A99
- POWERHEAD ASSEMBLY 17791T97

Gasket Set Components(Engine Overhaul)

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Gasket Set Components(Engine Overhaul):

Mercury 125 (4 CYL.) Gasket Set Components(Engine Overhaul) Diagram
Position No. Part Name OEM Number Supersedes
- GASKET SET 27-13461A99
- GASKET, Exhaust Plate to Cylinder Block 27-812775007
- GASKET, Exhaust Baffle to Exhaust Cover 27-812775006
- O-RING (2.862 I.D.) 25-89224
- O-RING, (1.989 x .070) (1.989 I.D.) 25-823683 25-64067
- GASKET, Cover Cylinder Block 27-443284
- GASKET 27-8M0204714
- GASKET, Cover, Thermostat 27-430068
- NOT SOLD SEPARATE, Boost NSS
- NOT SOLD SEPARATE, Boost Chamber NSS
- NOT SOLD SEPARATE, Fuel Pump NSS
- NOT SOLD SEPARATE, Pluse Chamber NSS
- GASKET, Fuel Pump 27-8M0204705
- GASKET, Reed Block/Crank 27-139376
- O-RING (.739 I.D.) 25-8M0204667
- O-RING (1.362 I.D.) 25-33466
- GASKET, Exhaust Plate/Exhaust Tube 27-430086
- SEAL, Water Tube 42941001
- GROMMET 25-93221002
- GASKET, Cylinder Block to Exhaust Plate 27-430075
- O-RING, (1.424 x .103) (1.424 I.D.) 25-8M0204681
- NOT SOLD SEPARATE, Seal NSS
- O-RING, (3.609 x .139) (3.609 I.D.) 25-8M0214974
- GASKET, Aluminum Cover, Water Pump, Upper 27-430341
- GASKET, Cover to Gearcase 27-8M0214931
- GASKET, Water Pump, Upper 27-8172771
- GASKET, Face Plate to Cover 27-430331
- SEAL 12-191833
- SEAL 19643
- GASKET, Carburetor 27-151724
- SPRING, Compression, Main 24-42998
- NOT SOLD SEPARATE, Spring End NSS
- NOT SOLD SEPARATE, Spring End NSS
- NOT SOLD SEPARATE, Check Valve NSS
- RETAINER, Check Valve 21-17311
- NOT SOLD SEPARATE, Compression, Boost NSS
- NOT SOLD SEPARATE, Spring End NSS
- GASKET, Manifold Cover 27-134612
- GASKET, Use With 44324C1 And 44325C1, Exhaust Baffle Plate and Cover 27-139581
- O-RING (2.112 I.D.) 25-858225

Gear Housing(Driveshaft)(2.07:1 Gear Ratio)

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Gear Housing(Driveshaft)(2.07:1 Gear Ratio):

Mercury 125 (4 CYL.) Gear Housing(Driveshaft)(2.07:1 Gear Ratio) Diagram
Position No. Part Name OEM Number Supersedes
- GEAR HOUSING ASSEMBLY (Long) 1667-9011J6
- GEAR HOUSING ASSEMBLY (X-Long) 1667-9011J9
- GEAR HOUSING ASSEMBLY Comment: (High Altitude-2.33:1) 1667-9011J15
1 GEAR HOUSING ASSEMBLY, Basic 1667-9011G59
2 PIN, Dowel - With Hole (.375 x .625) (Front) 17-8M0084244 17-43043
3 TUBE, Oiler 43046
4 SCREW KIT, (.375-16 x .250) Drain 10-79953Q04
4 PLUG KIT, Drain (Magnetic) 22-8M0058389 22-67892A06
5 SEAL 12-191833
6 PIN, Dowel - Without Hole (.375 x .625) (Rear) 17-43044
7 TRIM TAB 31640T07
8 SCREW, (.437-14 x 1.250) Stainless Steel 10-825427 10-15942
9 WASHER, (.453 x .812 x .105) Black Oxide 12-451761
10 CARRIER ASSEMBLY 43040T1
11 NOT SOLD SEPARATE, Needle Bearing NSS
12 ANODE 97-826134Q 826134, 826134A 1
13 NUT, (M6) Stainless Steel 11-401386
14 SCREW, (M6 x 40) 10-4000333
15 NOT SOLD SEPARATE, Pinion Gear (14 Teeth) Comment: (Component of 43-881260A 3) NSS
15 NOT SOLD SEPARATE, Pinion Gear (12 Teeth) Comment: (High Altitude-2.33:1)(Component of 43-882813A 3 NSS
16 NUT, (.625-18) 11-35921
17 CAM, Shift Control 850307
18 BEARING ASSEMBLY, Tapered Roller 31-883047A1
19 SHIM SET (006 Thru 048) 15-44492A1
20 DRIVESHAFT ASSEMBLY Comment: (Long-32 Inch) 45-43031A1
20 DRIVESHAFT ASSEMBLY Comment: (X-Long-37 Inch) 45-43032A4
21 SLEEVE/RING KIT 42461A1
22 NOT SOLD SEPARATE, Seal Ring NSS
23 COVER ASSEMBLY, Water Pump 43055A4
24 GASKET 27-430331
25 GASKET 27-8M0214931
26 SEAL, Oil (Lower) 26-43036
27 SEAL, Oil (Upper) 26-43035
28 GASKET 27-8172771
29 HOUSING KIT, Upper Water Pump 817275A2
30 FACEPLATE 8M0204709
31 SCREW, (M6 x 30) 10-82684430
32 SEAL 430232
33 KEY 28-8M0204723
34 IMPELLER 47-43026T2
35 SCREW, (M6 x 25) 10-82684425
36 SHIFT SHAFT ASSEMBLY Comment: (Long-12 Inch) 853906A1
36 SHIFT SHAFT ASSEMBLY Comment: (X-Long-17 Inch) 853908A1
37 E RING 53-29641
38 BUSHING ASSEMBLY 23-43052A4
39 O-RING, (1.424 x .103) 25-8M0204681
40 SEAL, Oil 26-8M0204708
41 SCREW, (M6 x 25) 10-82684425
42 FACE SEAL 26-861415 26-816575
- SEAL KIT, Gear Housing 26-43035A4
- REPAIR KIT, Water Pump 46-8M0113799
- GASKET SET 27-13461A99

Gear Housing, Propeller Shaft - 2.07:1 Gear Ratio

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Gear Housing, Propeller Shaft - 2.07:1 Gear Ratio:

Mercury 125 (4 CYL.) Gear Housing, Propeller Shaft - 2.07:1 Gear Ratio Diagram
Position No. Part Name OEM Number Supersedes
- GEAR HOUSING ASSEMBLY (Complete)(Long-20 Inch Model) Torpedo Diameter - 4.25 Inch / 107.95 mm Comment: NOTE: See Accessory Guide - Propeller Section- For Appropriate Hardware. (Thrust Washers/Nuts) 1667-9011J6
- GEAR HOUSING ASSEMBLY (Complete)(X-Long-25 Inch Model) Torpedo Diameter - 4.25 Inch / 107.95 mm Comment: NOTE: See Accessory Guide - Propeller Section- For Appropriate Hardware. (Thrust Washers/Nuts) 1667-9011J9
- GEAR HOUSING ASSEMBLY (Complete) Torpedo Diameter - 4.25 Inch / 107.95 mm Comment: (High Altitude-2.33:1 Ratio) 1667-9011J15
1 GEAR HOUSING ASSEMBLY, Basic 1667-9011G59
2 BEARING SET, Cup And Cone 31-30894A1
3 NOT SOLD SEPARATE, Cup NSS
4 GEAR, Forward - 29 Teeth 43-881260A3
4 GEAR KIT, Forward And Pinion 28 Teeth Comment: (High Altitude-2.33:1 Ratio) 43-882813A3
5 BEARING, Needle 31-30895T
6 RING, Retaining 53-856823
7 FOLLOWER KIT, Cam 850315A1
8 BALL 30-44530
9 NOT SOLD SEPARATE, Slide NSS
10 SPRING 24-850327
11 PIN, Cross 17-8M0100263 17-8M0084681, 17-8M0020941, 17-30632
12 SPRING 24-30893
13 CLUTCH 52-850048T 52-850048
14 PROPELLER SHAFT 44-8M0140445
15 GEAR, Reverse - 29 Teeth 43-850036T 43-850036
15 GEAR, Reverse - 28 Teeth Comment: (High Altitude-2.33:1 Ratio) 43-882814T
16 CARRIER ASSEMBLY, Bearing 8M0168901
17 O-RING, (3.609 x .139) 25-8M0214974
18 BEARING, Needle 31-30956T
19 SEAL, Oil (Inner) 26-8M0205728
20 SEAL, Oil (Outer) 26-8M0205729
21 BEARING, Roller 31-12578T
22 THRUST WASHER 12-12577
23 BEARING, Thrust 31-12576
24 STUD, (M8 x 48) 16-8M0034456 16-42917 2
25 WASHER, (.323 x .590 x .112) Stainless Steel 12-855941
26 NUT, (M8) 11-401378
27 SHIM SET (006 Thru 038) 15-44491A1
28 INSERT, Threaded 8227731
29 NOT SOLD SEPARATE, Decal-G/H Pinion Indent NSS
- COVER ASSEMBLY, Water Pump 43055A4
- GASKET SET 27-13461A99

Induction Manifold and Reed Block

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Induction Manifold and Reed Block:

Mercury 125 (4 CYL.) Induction Manifold and Reed Block Diagram
Position No. Part Name OEM Number Supersedes
1 COVER/PLATE KIT, Exhaust 44325A1
2 NOT SOLD SEPARATE, Exhaust Plate NSS
3 GASKET, Baffle Plate to Cylinder Block 27-812775007
4 GASKET, Exhaust Baffle to Exhaust Cover 27-812775006
5 SCREW, (M8 x 35 MM) 10-82127335
6 FITTING, Elbow 90 Degree (.125-27 x .250) Nylon 22-996642
7 SHIFT RAIL ASSEMBLY 42881A1
8 TAB WASHER 14-42981
9 SCREW, (M8 x 25) 10-40001134
10 SLIDE 988851
11 NUT, (M6) Stainless Steel 11-401386
12 WASHER 12-35459
13 NUT, (M6) Stainless Steel 11-401386
14 GASKET 27-430075
15 CAP ASSEMBLY, Lower End 1169-858552T2
16 CHECK VALVE 21-426585
17 SEAL, Oil 26-419533
18 O-RING 25-89224
19 SCREW, (M10 x 25) Hex Flange - Stainless Steel 10-4010825
20 TEE FITTING 22-13033
21 TUBING, (38.00 Inches Bulk) (Cut to 5.50 Inch Length) 32-1430165
22 FITTING (Straight) 22-130351
23 MANIFOLD ASSEMBLY, Induction 13545A1
24 BRACKET 827514
25 SCREW, (M8 x 35 MM) 10-82127335
26 SCREW, (M8 x 40) 10-81742740
27 STUD, (M6 x 44) 16-8161949
28 WASHER, (.187 x .500 x .062) Neoprene 12-8M0204663
29 WING NUT 11-816872
30 SCREW, (M8 x 110) (#4 Cylinder) 10-40001167
31 STUD, (M8 x 1.25) (#1, 2, 3 Cylinder) 16-824470 16-42985, 16-42985 1
32 GASKET 27-134612
33 COVER 13460
34 SCREW, (M8 x 55) 10-81742755
35 REED BLOCK ASSEMBLY 8M0219198
36 NOT SOLD SEPARATE, Dowel Pin NSS
37 GASKET 27-139376
38 REED SET 34-43018A1
39 TAB WASHER 14-429821
40 RETAINER 42924
41 SCREW, (M6 x 16) 10-88421471
42 DECAL, EPA Label Information (2006) 37-804667A06
42 DECAL, EPA Label Information (2005) 37-804667A05
- GASKET SET 27-13461A99
- POWERHEAD ASSEMBLY 17791T97

Jet Pump Assembly

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Jet Pump Assembly:

Mercury 125 (4 CYL.) Jet Pump Assembly Diagram
Position No. Part Name OEM Number Supersedes
- JET PUMP ASSEMBLY 856143A1
1 HOUSING, Pump 855767T90 855767 90
2 SHIFT LINKAGE KIT 878377
3 CAM 878382
4 GATE, Reverse - With Bumper 878380
5 HOSE, Lube 32-827490
6 SCREW, (.312-18 x 1.00) 10-848497
7 STUD, (.312-18 x 1.81) 16-855840
8 NUT, (.312-18) Stainless Steel 11-82670910
9 HOUSING, Intake 85576890
10 LINER 855771
11 DRIVESHAFT 45-85576990
12 THRUST WASHER 12-8796522
13 BEARING, Ball 30-8796531
14 SLEEVE 23-8271891
15 NUT 11-8271901
16 ADAPTOR, Pump 808747
17 IMPELLER 47-855708115 47-801414 90, 47-801414115
18 WASHER 12-36001
19 KEY 28-801405875
20 SHIM, Impeller 15-801404875
21 TAB WASHER 14-801403875
22 PIN, Dowel 17-801407
23 SCREW, (.250-20 x .625) 10-19923062
24 SCREW, (.312-18 x 1.250) 10-60411
25 BRACKET, Cable Support 801410
26 NUT, (.312-18) Stainless Steel 11-82670910
27 SCREW, (M10 x 60) Hex Flange - Stainless Steel 10-4010860
28 SCREW, (M10 x 90) Hex Flange - Stainless Steel 10-4010890
29 SCREW, (M10 x 70) Hex Flange - Stainless Steel 10-4010870
30 SCREW, (.375-16 x 4.00) Stainless Steel 10-843575
31 WASHER, (.406 x .750 x .105) Stainless Steel 12-8M0214963

Jet Pump Components

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Jet Pump Components:

Mercury 125 (4 CYL.) Jet Pump Components Diagram
Position No. Part Name OEM Number Supersedes
1 HOUSING KIT, Upper Water Pump Comment: (Lubricate/Sealant Application Points) 817275A2
2 GASKET 27-8172771
3 FACEPLATE 8M0204709
4 SCREW, (M6 x 30) 10-82684430
5 SEAL 430232
6 KEY 28-8M0204723
7 IMPELLER 47-43026T2
- SEAL KIT, Gear Housing 26-43035A4
- REPAIR KIT, Water Pump 46-8M0113799
- GASKET SET 27-13461A99

Key Chart

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Key Chart:

Mercury 125 (4 CYL.) Key Chart Diagram
Position No. Part Name OEM Number Supersedes
- KEY, Ignition (1A) 894911
- KEY, Ignition (1B) 894912
- KEY, Ignition (1C) 894913
- KEY, Ignition (1D) 894914
- KEY, Ignition (1E) 894915
- KEY, Ignition (1F) 894916
- KEY, Ignition (2A) 894917
- KEY, Ignition (2B) 894918
- KEY, Ignition (2C) 894919
- KEY, Ignition (2D) 8949110
- KEY, Ignition (2E) 8949111
- KEY, Ignition (2F) 8949112

Lube Chart

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Lube Chart:

Mercury 125 (4 CYL.) Lube Chart Diagram
Position No. Part Name OEM Number Supersedes
NO PARTS LIST NOPART

Oil Injection Components

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Oil Injection Components:

Mercury 125 (4 CYL.) Oil Injection Components Diagram
Position No. Part Name OEM Number Supersedes
1 TANK ASSEMBLY, Oil 1278-8M0219217
1 TANK ASSEMBLY, Oil 1278-8M0219217
2 CAP 828475A1
3 O-RING 25-26318T
4 DIPSTICK 828793
5 NUT 11-65110
6 VENT ASSEMBLY 19299A1
7 VALVE 21-64871
8 BRACKET 8287201
9 BOOT 99160001
10 SCREW, (M6 x 20) Stainless Steel 10-4010620
11 GROMMET 25-825380001 25-825380
12 BUSHING 23-828350
13 WASHER 12-4002318
14 SCREW, (M8 x 35) 10-81893435
15 SWITCH ASSEMBLY 87-12886A6
16 SCREW, (.164-18 x .375) 10-58376
17 WASHER, (.203 x .562 x .060) Stainless Steel 12-72761
18 GEAR, Driven 43-430204
19 O-RING 25-8M0204667
20 ADAPTOR ASSEMBLY 17335A3
21 BUSHING 23-17597
22 BUSHING 23-17596
23 PUMP, Oil 44345T3
24 SCREW, (M5 x 40) 10-82104540
25 TUBING, (15.00 Inches Bulk) (Cut to 6.00 Inch Length) 32-82381335
26 TUBING, (25.00 Inches Bulk) (Cut to 11.00 Inch Length) 32-82381455
27 TIE STRAP, (5.50 Inches) 8M0214940
27 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
- GASKET SET 27-13461A99

Power Trim Components

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Power Trim Components:

Mercury 125 (4 CYL.) Power Trim Components Diagram
Position No. Part Name OEM Number Supersedes
- PUMP ASSEMBLY, Power Trim 8M0171818
- PUMP ASSEMBLY, Power Trim 8M0171818
1 SHOCK ROD KIT 8M0171821
2 O-RING KIT, Rebuild 25-8M0171819
3 PISTON ASSEMBLY, Memory 8M0171822
4 CYLINDER ASSEMBLY 893916A01 811669A 1
5 VALVE KIT, Trim Limit 893905A02 809873A 1
6 PUMP ASSEMBLY 893906A02 809874A 1
7 MOTOR KIT 893907A02 809885A 2
8 PLUG 22-8134351
9 MANUAL RELEASE ASSEMBLY 893929A01 813442A 2
10 MANIFOLD KIT 893909A02 809875A 1
11 SCREW KIT (Motor) 10-809876A1
12 CABLE ASSEMBLY 88238A18
13 DRIVESHAFT/SEAL KIT 809877A1
14 FILTER KIT 35-893912A02 809878A 1
15 POPPET KIT 893913A02 809879A 1
- O-RING KIT (Complete Trim) 25-893914A02 25-809880A 1
16 RELAY ASSEMBLY 8M0207773
17 BUSHING 23-8M0214955
18 GROMMET 25-818967
19 BRACKET 828102
20 NOT SOLD SEPARATE, Decal-Trim Relay NSS
21 HARNESS ASSEMBLY, Trim 84-8M0092077
22 SCREW, (M6 x 25 MM) 10-82129125
23 CLIP 54-22740
24 SCREW, (#10-16 x .600) 10-878609 10-812832 1
25 C WASHER 8M0084613 69205

Service/Support Material

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Service/Support Material:

Mercury 125 (4 CYL.) Service/Support Material Diagram
Position No. Part Name OEM Number Supersedes
- PARTS MANUAL, 115/125 Hp 80 Jet (4 Cylinder) 90-803168001
- SERVICE MANUAL 90-8M0127990
- OWNERS MANUAL, (2005) Comment: English 90-10180050
- OWNERS MANUAL, (2005) Comment: (2005) French 90-10180D50
- OWNERS MANUAL, (2005) Comment: (2005) Spanish 90-10180J50
- OWNERS MANUAL, (75/90/115/125)(2-Stroke) Comment: (2006) English 90-10180080
- OWNERS MANUAL, (75/90/115/125)(2-Stroke) Comment: (2006) French 90-10180D60
- OWNERS MANUAL, (75/90/115/125)(2-Stroke) Comment: (2006) Spanish 90-10180J60
- OWNERS MANUAL, Jet 65/80 (2005) 90-10138050
- HOSE ASSEMBLY, Fuel 32-858610A31 32-858610A10, 32-16789A18
- DECAL SET, (Black 80 Jet) (2005) 37-826321A00 37-826321A96, 37-826321A95
- DECAL SET, (Black 115 - Red) (2005) 37-823407A00 37-823407A96, 37-823407A94
- DECAL SET, (Black 125 - Red) (2005) 37-823410A00 37-823410A96, 37-823410A94
- DECAL SET, (Black 115 - Blue) (2005) 37-803165A00 37-803164A99, 37-803165A99
- DECAL SET, (Black 125 - Blue) (2005) 37-803166A00 37-803166A99
- DECAL SET, (Gray 115) (2005 and Up) 37-823412A03 37-823412A01, 37-803167A99, 37-823412A97, 37-823412A94, 37-850445A97, 37-803167A00
- DECAL SET, (Gray 125) (2005 and Up) 37-823413A03 37-823413A01, 37-823413A97, 37-823413A94, 37-850446A97
- DECAL SET (Tracker 115) Comment: (2005) 37-824735A96
- DECAL SET (Tracker 125) Comment: (2005) 37-808623A96
- DECAL SET, (Black 115) (2006 and Up) 37-897515A01
- DECAL SET, (Black 125) (2006 and Up) 37-897515A02
- DECAL, EPA Label Information (2005) 37-804667A05
- DECAL, EPA Label Information (2006) 37-804667A06

Starter Motor

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Starter Motor:

Mercury 125 (4 CYL.) Starter Motor Diagram
Position No. Part Name OEM Number Supersedes
- STARTER MOTOR ASSEMBLY 50-893892T 50-66015 3
1 DRIVE KIT 15383
2 PINION ASSEMBLY 13310T1
3 PLATE 75660
4 THRU BOLT 15384
5 ARMATURE 15385
6 BRUSH/SPRING KIT 898265016 75384, 75384 1
7 END CAP 15386001

Steering Handle

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Steering Handle:

Mercury 125 (4 CYL.) Steering Handle Diagram
Position No. Part Name OEM Number Supersedes
1 HANDLE ASSEMBLY, Steering Arm 12020A3
NS FITTING, Grease 22-8M0169589
2 BUSHING 23-42992T02
3 HOUSING 48414
4 PLATE 48519
5 GASKET 27-48518
6 SCREW, (#10-16 x .600) 10-878609 10-812832 1
7 SCREW, (#10-16 x .500) 10-878608 10-812832
8 CLAMP 54-889729 54-12013
9 SCREW, (M5 x 40) 10-40007112
10 WING NUT, 10-32,11-816874 11-73651, 11-816873, 11-90052
11 HANDLE, Throttle (#96495 6)
12 SWITCH KIT, Stop - Throttle Handle 87-823609A15 87-15823A 6, 96495A 3, 87-15823A 5
13 SWITCH ASSEMBLY, Stop 87-8M0104612 87-823609A 5
14 TUBE ASSEMBLY, Throttle 12018A4
15 NOT SOLD SEPARATE, Drive Wheel NSS
16 NOT SOLD SEPARATE, Roll Pin NSS
17 SCREW, (#10-16 x .375) 10-62568
18 GRIP 8M0221732
19 CLAMP 54-648551
20 NUT, (M10) 11-40140
21 CONDUIT 8885242
22 GUIDE TUBE 895663
23 BARREL 89578
24 SET SCREW, 10-32,10-824081 10-89601
25 CABLE ASSEMBLY 120191
26 GUIDE 434332
27 ANCHOR 20007
28 SET SCREW, 8-32,10-8M0204644
29 SCREW, (M10 x 105) Hex Flange - Stainless Steel 10-823567105 10-817430105
30 CAP 48416
31 WASHER 12-4002319
32 WASHER, (.402 x .787 x .039 Bellevi) 12-12024
33 SPACER 23-146011
34 WASHER, (.406 x .750 x .105) Stainless Steel (Use Where Applicable) 12-8M0214963
35 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
36 NOT SOLD SEPARATE, Decal-Throttle NSS
- TILLER HANDLE KIT 12022A41

Steering Handle Components

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Steering Handle Components:

Mercury 125 (4 CYL.) Steering Handle Components Diagram
Position No. Part Name OEM Number Supersedes
1 BRACKET ASSEMBLY 12022A22
2 SCREW, (.375-24 x 1.250) 10-849838 10-14000
3 NUT, (.375-24) Stainless Steel 11-8M0204726
4 STUD, (.3125 x 2.50) 16-8M0034421 16-822320
5 SPACER 822263
6 WASHER, (.344 x .688 x .065) Stainless Steel 12-8M0204690
7 NUT, (.312-24) Stainless Steel 11-82670911
8 GROMMET 121051
9 HARNESS ASSEMBLY 84-12649A5
10 SWITCH KIT, Key Comment: (See Key Chart for Keys) 87-88107A5
11 NUT, Special - Black Nylon Comment: (Black Nylon) 11-879755 11-93543 (Black Nylon)
12 COVER 12015A1
13 SCREW, (#10-16 x .500) 10-878608 10-812832
14 SWITCH ASSEMBLY, Stop 87-11083A4
15 LANYARD ASSEMBLY 15920Q54
16 RETAINER, Brass 8M0032846 12044 1
17 SCREW, (M8 x 50) 10-4000358
18 TAB WASHER 14-42981
19 BUSHING 23-889732 23-42992 1
20 LEVER ASSEMBLY, Shift 12021A1
21 WASHER 12-815351
22 NOT SOLD SEPARATE, Decal-Shift NSS
23 STUD, (.375-24 x 1.125) 16-8M0034452 16-58152
24 KNOB 98530
25 SHIFT ROD 495636
26 ROD END 48419T
27 BUSHING 23-26856
28 WASHER, (.273 x .437 x .031) Stainless Steel 12-35950
29 COTTER PIN 18-25191
30 DETENT/SPRING KIT 12016A2
31 NOT SOLD SEPARATE, Spring NSS
32 TRIM SWITCH (Power Trim) 87-14645A4
33 NUT, (.468-32) (Power Trim) 49440
34 NOT SOLD SEPARATE, Decal-Trim Comment: (Component of 14645A 4 Trim Switch) NSS
35 HORN ASSEMBLY 816051A2
36 CABLE ASSEMBLY 84-11149A3
37 CABLE ASSEMBLY 84-86324A2
38 BRACKET Comment: (X-Long) 824930T3
39 SWITCH Comment: (X-Long) 87-8M0052927 87-813960A 3 (X-Long)
40 SCREW, (M3 x 20) Comment: (X-Long) 10-88075020
41 PLATE Comment: (X-Long) 824923
42 HARNESS ASSEMBLY Comment: (X-Long) 84-824934A3
- TILLER HANDLE KIT 12022A41

Swivel Bracket and Steering Arm

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Swivel Bracket and Steering Arm:

Mercury 125 (4 CYL.) Swivel Bracket and Steering Arm Diagram
Position No. Part Name OEM Number Supersedes
1 SWIVEL BRACKET 1400-8M0220957
2 SEAL, Oil, Lower 26-87735
3 BUSHING 23-818764 23-67669
4 O-RING 25-8M0214926
5 SPACER 23-816039
6 FITTING, Grease 22-8M0169589
7 BUSHING 23-821207 23-99608
8 SCREW, (.250-28 x .500) 10-64014
9 THRUST WASHER 12-816432
10 SWIVEL PIN ASSEMBLY 99661A35
11 LINK ROD ASSEMBLY 92876A12
12 SCREW, (.375-24 x 1.250) 10-849838 10-14000
13 NUT, (.375-24) Stainless Steel 11-8M0204726
14 WASHER, (.390 x .625 x .062) Stainless Steel 12-37828
15 NUT, (.375-24) Stainless Steel 11-8M0204726
16 BUMPER 8M0000519 881974
17 YOKE, Bottom 881914T01
18 RING, Retaining 53-67684
19 BUMPER, Bottom Yoke Comment: (X-Long) 11288001

Throttle Lever and Linkage

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Throttle Lever and Linkage:

Mercury 125 (4 CYL.) Throttle Lever and Linkage Diagram
Position No. Part Name OEM Number Supersedes
1 LEVER, Throttle 884309T 884309, 44333
2 SCREW, (M5 x 40) 10-827009
3 CAP 826264
4 SPRING 24-826382
5 CAP 48039
6 LEVER, Spark Advance 884307T 884307, 44335
7 SCREW, Adjusting (M6 x 55) 10-814776 10-42978
8 NUT, (M6) Stainless Steel 11-400212
9 CAP 42942
10 SCREW, (M10 x 45) 10-4007180
11 BUSHING 23-55171
12 SPRING 24-73375
13 BUSHING 23-812930A1
14 NOT SOLD SEPARATE, Insert NSS
15 WASHER 12-42980
16 INSERT 42927
17 WASHER 12-35459
18 NUT, (M6) Stainless Steel 11-401386
19 ROD, Spark Advance 878170 44338
20 SWIVEL BALL 93421
21 SWIVEL BASE 93254
22 BUSHING 23-8M0215006
23 NUT, (M6) Stainless Steel 11-401386
24 WASHER, (.255 x .620 x .030) Stainless Steel 12-69056
25 LINK 878173 44337
26 BUSHING 23-8M0215006
27 CAM ASSEMBLY, Throttle 14518A2
28 STUD, (M6 x 44) 16-8161949
29 NOT SOLD SEPARATE, Decal-Idle Screw (Arrow-Down) NSS

Tiller Handle Adapter Kit(Jet 80)

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Tiller Handle Adapter Kit(Jet 80):

Mercury 125 (4 CYL.) Tiller Handle Adapter Kit(Jet 80) Diagram
Position No. Part Name OEM Number Supersedes
- TILLER HANDLE ADAPTOR KIT 850000A3
1 CABLE ASSEMBLY, Shift 832001A6
2 NUT, (M6) Stainless Steel 11-401386
3 SLIDE 988851
4 BRACKET 828095
5 BRACKET 824930T3
6 CLIP 54-8054441
7 SCREW, (M6 x 13) Stainless Steel 10-40011126
8 BLOCK, Shift Cable-Retaining 828096
9 WASHER, (.281 x .500 x .060) Stainless Steel 12-8M0204649
10 SCREW, (.250-28 x 1.75) 10-71958
11 LOCKWASHER, (.250) Stainless Steel 13-26992
12 BLOCK, Shift Cable-Retaining 828094
13 SET SCREW, (#10-32 x .310) 10-72734
14 WASHER 12-35459
15 NUT, (.250-28) Stainless Steel 11-35888
16 SWITCH 87-8M0052927 87-813960A 3
17 SCREW, (M3 x 20) 10-88075020
18 PLATE 824923
19 CABLE ASSEMBLY 84-824934A1

Tools(Special)

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Tools(Special):

Mercury 125 (4 CYL.) Tools(Special) Diagram
Position No. Part Name OEM Number Supersedes
- PULLER ASSEMBLY 91-849154T1
- FLYWHEEL HOLDER TOOL, Teeth Type 91-52344
- TORQUE WRENCH, (0-150 lb-in) 91-66274
- MULTI METER 91-99750A1
- SWITCH ASSEMBLY Comment: (Electrical/Ignition) 91-52024A1
- SERVICE TACHOMETER Comment: (Electrical/Ignition) 91-59339
- TESTER, Eight Chamber Comment: (Electrical/Ignition) 91-850439T1
- GAP TOOL, Single Chamber Comment: (Electrical/Ignition) 91-63998A1
- TESTER, Eight Chamber Comment: (Electrical/Ignition) 91-850439T1
- TIMING LIGHT Comment: (ELECTRICAL/IGNITION) 91-99379
- HARNESS ASSEMBLY Comment: (Electrical/Ignition) 84-825207A2
- ALIGNMENT TOOL Comment: (Trim/Tilt System) 91-112301
- NOT SOLD SEPARATE (SNAP ON - CG41-14) Comment: (Trim/Tilt System) NSS
- NOT SOLD SEPARATE (SNAP ON - CG41-11) Comment: (Trim/Tilt System) NSS
- DOWN PRESSURE KIT Comment: (Trim/Tilt System) 91-822778A3
- SPANNER WRENCH Comment: (Trim/Tilt System) 91-74951
- HEAT LAMP Comment: (Trim/Tilt System) 91-63209
- GAUGE TOOL Comment: (Powerhead) 91-29287
- LIFTING EYE Comment: (Powerhead) 91-904551
- INSTALLER KIT Comment: (Powerhead) 91-77109A3
- INSTALLER KIT, Piston Pin Comment: (Powerhead) 91-74607A3
- EXPANDER TOOL, Piston Ring Comment: (Powerhead) 91-24697
- STAND, Powerhead Comment: (Powerhead) 91-812549T 91-812549 (Powerhead)
- CAP TOOL, Flywheel Puller Comment: (Powerhead) 91-24161
- INDICATOR TOOL, Backlash Comment: (Gear Housing) 91-8M0053505 91-78473 (Gear Housing)
- INDICATOR TOOL, Backlash Comment: (Gear Housing) 91-196601
- MANDREL, Bearing Driver Cup Comment: (Gear Housing) 91-31106T
- INSTALLATION TOOL, Bearing Comment: (Gear Housing) 91-13945
- INSTALLATION TOOL, Bearing Comment: (Gear Housing) 91-14309T02
- TOOL, Preload Comment: (Gear Housing) 91-14311A04
- PULLER ASSEMBLY Comment: (Gear Housing) 91-83165T
- TOOL KIT, Bearing Race Comment: (Gear Housing) 91-14308T02
- PULLER KIT, Bearing Comment: (Gear Housing) 91-31229A7
- NUT, (.625-18) Comment: (Gear Housing) 11-24156
- MANDREL Comment: (Gear Housing) 91-15755T
- DRIVE HEAD TOOL Comment: (Gear Housing) 91-36569T
- DRIVER ROD TOOL, Needle Bearings Comment: (Gear Housing) 91-37323
- MANDREL Comment: (Gear Housing) 91-37350T
- RETAINING TOOL, Bearing Comment: (Gear Housing) 91-43506T
- ADAPTER KIT, Dial Indicator Comment: (Gear Housing) 91-83155
- DIAL INDICATOR TOOL Comment: (Gear Housing) 91-58222A1
- HOLDING TOOL, Driveshaft Comment: (Gear Housing) 91-56775T
- INSTALLER TOOL, Bearing Comment: (Gear Housing) 91-826872
- DRIVER TOOL, Oil Seal Comment: (Gear Housing) 91-13949
- DRIVER, Oil Seal Comment: (Gear Housing) 91-31108T
- LOCATION TOOL, Pinion Comment: (Gear Housing) 91-12349A05
- PULLER JAW ASSEMBLY Comment: (Gear Housing) 91-46086A1
- PULLER PLATE, Universal Comment: (Gear Housing) 91-37241
- PULLER ASSEMBLY, Slide Hammer Comment: (Gear Housing) 91-34569A1
- BEARING, Thrust Comment: (Gear Housing) 31-85560
- WEAR SLEEVE INSTALLATION TOOL Comment: (Gear Housing) 91-14310T1

Top Cowl

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Top Cowl:

Mercury 125 (4 CYL.) Top Cowl Diagram
Position No. Part Name OEM Number Supersedes
1 TOP COWL ASSEMBLY, Black 4026-828354T8
1 TOP COWL ASSEMBLY, Silver 4026-828354T9
1 TOP COWL ASSEMBLY, Silver Cowl And Black Cap Comment: (Tracker) 4026-828354A10
2 CAP 828716A2
3 SEAL 828352
4 SEAL 8283511
5 CAP, Upper Comment: (Black) 8218751
5 CAP, Upper Comment: (Silver) 821875F2
6 BRACKET, Cover Latch 819813T1
7 BRACKET ASSEMBLY, Latch Roller 893763 18173
8 LOCKWASHER, (.312) 13-53166
9 SCREW, (.312-18 x .625) 10-90285
10 GUIDE, Cowl Latch Bracket F481434
11 PUSH NUT 11-91925
12 SCREW, (.250-20 x 1.00) 10-822512
13 CAP PLUG 19-823865
14 SCREW, (M6 x 16) 10-82130016
15 SUPPORT 823830
16 SCREW, (M4 x 14.5) 10-8231871
17 LOCKWASHER, Stainless Steel 8,13-26995
18 BRACKET 8233941
19 NUT, (M4) 11-8237515
20 SOUND BLANKET KIT Comment: (Hot Glue Adhesive) 823583A02 823583A 1 (Hot Glue Adhesive)
20 SOUND BLANKET KIT, (Pre-Applied Pressure Sensitive Adhesive) 823583A02 823583A 1
21 NOT SOLD SEPARATE, Sound Blanket NSS
22 ROPE AND HANDLE KIT, Manual Starting 47341A11

Transom Bracket

Back to Top

Below is the parts list for Mercury 125 (4 CYL.) Transom Bracket:

Mercury 125 (4 CYL.) Transom Bracket Diagram
Position No. Part Name OEM Number Supersedes
1 BRACKET, Transom (Starboard) 3426-828334T02 3426-828334F 1
2 BRACKET ASSEMBLY, Transom (Port) 3425-828333T07 3425-828333A 3
3 FITTING, Grease (Port) 22-8M0169588
4 TUBE KIT, Tilt Comment: (Carbon Steel) 99170A2
4 TILT TUBE (Stainless Steel)(Saltwater) 826125A1
5 NUT, (1.00-14) 11-859133 11-34862, 11-90068F 3, 11-90068F 4
5 NUT, (1.00-14) Nylon Insert (Stainless Steel)(Saltwater) 11-826135
6 O-RING, (.612 x .103) 25-45711
7 WASHER 13-88750
8 NUT, (.875-14) 11-858869 11-30499
8 NUT, (.875-14) (Brass)(Saltwater) 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 SPRING, Tension 24-830899
14 LEVER ASSEMBLY, Tilt Lock 8M0109798 821176T02, 821176T 1
15 NYLINER 23-65830
16 SPRING, Compression 24-830900
17 KNOB 99633
18 PIN, Groove 17-99615
19 PIN 17-893709 17-99617
20 BRACKET, Anchor 8M0086406 818771T 1
21 SCREW, (M10 x 30) 10-858771
22 WASHER 12-4002319
23 NUT, (M10 x 1.5) 11-40114
24 ANODE 97-818298Q1
25 SCREW, (M6 x 25) 10-8M0204707
26 WASHER, (.281 x .500 x .060) Stainless Steel 12-8M0204649
27 CLIP 54-22740
28 C WASHER 8M0084613 69205
29 SCREW, (#10-16 x .600) 10-878609 10-812832 1
30 PUMP ASSEMBLY, Power Trim Comment: (See Power Trim Components section for parts breakdown) 8M0171818
31 SHAFT (Upper) 99625002
32 PIN, Anchor 17-818898
33 PIN, Trilobe 17-821539 17-13794, 17-19603

Download this page as PDF: Click here

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.

Prev Post
Next Post

Leave a comment

Please note, comments need to be approved before they are published.

Thanks for subscribing!

This email has been registered!

Shop the look

Choose Options

Edit Option
Back In Stock Notification

Choose Options

this is just a warning
Login
Shopping Cart
0 items