Mercury 3HP (0A855097 THRU 0G710612) Outboard Motor Parts Diagram & Catalog – Free PDF Download

by JLM Marine 22 Apr 2025 0 Comments

Mercury 3HP Outboard Motor Parts Diagram & Catalog – Free PDF Download

Use the Table of Contents below to jump to each diagram. For more details, click the part name or the OEM number to view its detailed page. A free PDF version of the catalog can be downloaded at the bottom of this page.

ACCESSORIES
CARBURETOR
CD IGNITION
COWL AND FUEL TANK
CYLINDER BLOCK, CRANKSHAFT AND PISTON
DRIVESHAFT HOUSING AND CLAMP BRACKETS
GEAR HOUSING ASSEMBLY
MISCELLANEOUS INFORMATION
RECOIL AND IGNITION COMPONENTS(BREAKER POINT IGNITION)
RECOIL STARTER(CD IGNITION)
TOOLS, SPECIAL

ACCESSORIES

Below is the parts list for Mercury 3HP ACCESSORIES:

Position No.	Part Name	OEM Number	Supersedes
-	MOTOR LOCK	14171Q2

CARBURETOR

Below is the parts list for Mercury 3HP CARBURETOR:

Position No.	Part Name	OEM Number	Supersedes
1	CARBURETOR ASSEMBLY	3303-8231752
1	CARBURETOR ASSEMBLY	3303-8230402
1	CARBURETOR	1300-8M0203718
2	WIRE, Throttle	95252
3	BOLT	10-95321
4	BRACKET	95253
5	CAP	95254
6	SPRING	24-95322
7	PLATE	95255
8	E RING	53-95323
9	JET NEEDLE	815126A1
9	JET NEEDLE	823041
9	JET NEEDLE	8151263
9	JET NEEDLE	8151261
10	VALVE, Throttle	95257
10	VALVE, Throttle	952573
11	JET NEEDLE	815126A1
12	GASKET	27-95324
13	FLOAT	95259
14	FLOAT BOWL	95260
15	PIN, Hinge	17-95327
16	HINGE	95263A1
16	HINGE	952621
17	MAIN JET	92,815029	815106 SN# USA-0G574241/BEL-9973099 & Below
17	MAIN JET	80,8150291
18	SCREW	10-953251
19	GASKET	27-95326
19	GASKET	27-95326
20	VALVE, Needle	95263A1
20	HINGE	95263A1
21	SEAT	95263A1
21	SEAT, Needle Valve	8M0171808
22	SCREW	10-95328
23	SPRING	24-95329
24	LEVER, Shutter	95266
25	SCREW	10-95331
26	PLATE, Choke	95265
27	LOCKWASHER, (M6)	13-400256
28	NUT	11-95330
29	CLAMP	54-95332
30	SCREW	10-95333
31	O-RING	25-811601	27-95337
32	SCREW	10-815071
33	LEVER, Throttle	95268
34	SCREW	10-815072
35	LOCKWASHER	13-95238
36	GASKET	27-95336
37	BRACKET	95267
37	BRACKET	952672
38	COLLAR	952672
38	COLLAR	23-952867
39	KNOB	95269
40	SCREW	10-95338
41	COVER	815073
41	COVER	815132
41	COVER	8151321
42	COVER	8150731
42	COVER	8150732
43	SCREW	10-95339
-	REPAIR KIT, Carburetor	8M0171816
-	GASKET SET, Powerhead	27-898101928	27-95220A 5

CD IGNITION

Below is the parts list for Mercury 3HP CD IGNITION:

Position No.	Part Name	OEM Number	Supersedes
-	FLYWHEEL MAGNETO ASSEMBLY	262-822899A1
1	FLYWHEEL	262-822899
2	COIL, Exciter	823030T1
3	SCREW	10-16059
4	NUT	11-95233
5	SCREW	10-823031
6	LOCKWASHER	13-823032
7	COIL, Ignition	823033
8	BOLT	10-16705	10-95302
9	CD UNIT	823034T	823034
10	LOCKWASHER	13-16818
11	SPACER	23-823035
12	BOLT	10-16832
13	LOCKWASHER	13-16818
14	WASHER	12-809931044	12-809931042, 13-815064, 12-95222 (SEE NOTE 1)
10	WASHER, Stainless Steel	12-953921
12	BOLT, (M6 x 16)	10-16832
15	SPARK PLUG	33-8M0114743
15	SPARK PLUG	33-19796
16	CAP KIT	85-95282A1
17	SWITCH ASSEMBLY, Emergency Stop	87-823037A04	87-823037A 1, 87-898101306
18	LANYARD	823054
19	CLAMP	54-160601

COWL AND FUEL TANK

Below is the parts list for Mercury 3HP COWL AND FUEL TANK:

Position No.	Part Name	OEM Number	Supersedes
1	TOP COWL ASSEMBLY	2189-815098A3
1	TOP COWL ASSEMBLY	2189-815098A4
1	TOP COWL ASSEMBLY	2189-815098A2
2	BOTTOM COWL	2189-824926A1
2	BOTTOM COWL	2189-824926A2
2	BOTTOM COWL	2189-824926A3
3	BOTTOM COWL	100-8M0145391
3	BOTTOM COWL	2189-824927A2
3	BOTTOM COWL	2189-824927A3
4	LATCH KIT	8M0114258
5	RIVET	17-825829
6	LATCH KIT	817015A1
7	LATCH	817015
8	SCREW	10-16827
9	COVER	8M0148363
9	COVER	815104
9	COVER	8151041
10	HINGE, Rear	815105
11	BOLT	10-95386
12	PLATE	95280
13	NUT	11-95385
14	GROMMET	25-95387
15	TANK ASSEMBLY, Fuel	1258-824963A03	1258-824963A 2
16	CAP	36-8M0060029	36-824962A 2
17	No Longer Available, CAP	NLA
17	CAP	36-812952	36-16232 (REFER TO DRAWING #1)
18	GASKET	27-8M0065762	27-815087, 27-95388
19	SEAL	25-815109	25-95389
20	SCREW	10-803858	10-95391
21	LOCKWASHER	13-16818
22	WASHER	12-95392
23	SPACER	23-95390
24	VALVE	22-95393
25	LINE, Fuel (250 mm)	32-8M0057113	32-879194470, 32-95394 9
26	CLIP, Stainless Steel	54-95395
27	TOOL KIT	91-95399
28	PIN, Brass	17-815111Q02	17-815111002, 17-815111, 17-95372, 17-815111 1, 17-815111Q, 17-815111Q01
29	COTTER PIN	18-95295
30	DECAL, EPA Label Information (INSIDE TOP COVER)	37-855577A1

CYLINDER BLOCK, CRANKSHAFT AND PISTON

Below is the parts list for Mercury 3HP CYLINDER BLOCK, CRANKSHAFT AND PISTON:

Position No.	Part Name	OEM Number	Supersedes
1	CYLINDER BLOCK/CRANKCASE	878-91512
2	PIN, Dowel	17-95218
3	BOLT	10-898103167	10-16695 5, 10-95221
4	BOLT	10-95298
5	GASKET	27-95299001
6	CYLINDER HEAD	979-815062T2
6	CYLINDER HEAD	979-9152T2
6	CYLINDER HEAD	979-815062T2
7	SCREW	10-815063	10-95300
8	WASHER	12-809931044	12-809931042, 13-815064, 12-95222
9	CONNECTOR	22-8M0064617	22-812960, 22-95301
10	HOSE, (150 mm)	32-8M0057112
11	CLIP	54-95224
12	HEAD	952251
13	SCREW	10-815065
14	WASHER, Stainless Steel	12-16826
15	CLAMP	54-8M0130961
16	REED VALVE	34-95226
17	STOP	34-95304
18	SCREW	10-16067	10-95305
19	CLIP	53-952366
19	CLIP	53-952366
20	KEY	28-95229
21	BEARING, Ball (UPPER)	30-898101936	30-95228
22	PLATE (UPPER)	95230
23	SEAL, Oil (UPPER)	26-95232
24	NUT	11-95233
25	BEARING, Ball (LOWER)	30-95307
26	PLATE (LOWER)	95231
27	SEAL, Oil (LOWER)	26-95308
28	BEARING, Roller	31-95227
29	PISTON	779-9154
29	PISTON	779-9183
30	RING, Piston	39-95234
30	RING, Piston	39-95309
31	PIN, Piston	898101917	41-95235
32	CRANKSHAFT ASSEMBLY	463-879147T16	474-879147T14, 474-9153 1 SN# USA-0G574242/BEL-9973100 & Up
32	CRANKSHAFT ASSEMBLY	463-879147T16	474-879147T14, 474-9153 1 SN# USA-0G574241/BEL-9973099 & Below
33	CRANKSHAFT	463-813049	16340 SN# USA-0G574242/BEL-9973100 & Up
33	CRANKSHAFT	463-8130491
34	CRANKSHAFT	463-813268	16341
35	CONNECTING ROD	629-813269	16342
36	BEARING	31-813270	16343
37	PIN, Crank	813271001	813271, 16344
-	POWERHEAD ASSEMBLY	823825T07	823825T05, 823825A 3 (2.5) SN# USA-0G574242/BEL-9973100 & Up
-	POWERHEAD ASSEMBLY	8150891
-	POWERHEAD ASSEMBLY	8151291
-	GASKET SET, Powerhead	27-898101928	27-95220A 5

DRIVESHAFT HOUSING AND CLAMP BRACKETS

Below is the parts list for Mercury 3HP DRIVESHAFT HOUSING AND CLAMP BRACKETS:

Position No.	Part Name	OEM Number	Supersedes
1	HOUSING, Driveshaft	1599-825130T	1599-825130, 1599-9157 (BLACK)
1	HOUSING, Driveshaft	1599-825131T	1599-825131, 1599-815074 (MARINER GRAY)
1	HOUSING, Driveshaft	1599-8251312
2	BOLT	10-16830
3	LOCKWASHER, (M6)	13-400256
4	WASHER, Stainless Steel	12-16826
5	CARRYING HANDLE	95276
5	CARRYING HANDLE	815082
5	CARRYING HANDLE	8150821
6	SCREW, (M6 x 25)	10-8M0204707
7	NUT, (M6) Stainless Steel	11-400212
8	BOLT	10-823042
9	GASKET	27-815076002	27-815076001, 27-815076, 27-95341
10	HANDLE, Steering	823162A3
10	HANDLE ASSEMBLY, Steering	823163A2
11	SCREW, (M8 x 30)	10-4000354
12	WASHER	12-16192
13	DAMPER	22-95364
14	HANDLE ASSEMBLY, Steering	823162A3
14	HANDLE ASSEMBLY, Steering	823163A2
14	HANDLE ASSEMBLY, Steering	823162A4
15	SCREW, (M8 x 30)	10-4000354
16	WASHER	12-823047
17	DAMPER	22-823045
18	SPACER	23-823046
19	HANDLE ASSEMBLY, Steering	823162A3
19	HANDLE ASSEMBLY, Steering	823163A2
19	HANDLE ASSEMBLY, Steering	823162A4
20	SCREW, (M8 x 35) Stainless Steel	10-40011151
21	DAMPER	22-95364
22	GRIP	95274
23	CLAMP BRACKET	3406-8150852
23	CLAMP BRACKET	3406-8150864
23	CLAMP BRACKET	3406-8150863
23	CLAMP BRACKET	3406-8150852
23	CLAMP BRACKET	3406-8150864
24	BOLT	10-898101337	10-95373
25	WASHER	12-95375
26	NUT, (M8)	11-95374
27	BRACKET	95278
27	BRACKET	95278
27	BRACKET	95278
28	DISTANCE ROD	8M0055576	815091, 10-95376
29	LOCKWASHER, (M6)	13-400256
30	NUT, (M6) Stainless Steel	11-400212
31	CLAMP SCREW ASSEMBLY	10-16200
31	THUMB SCREW ASSEMBLY	10-815032
31	THUMB SCREW ASSEMBLY	10-8150321
32	PAD	12-95379
33	SWIVEL BRACKET	3407-9160T1
33	SWIVEL BRACKET	3407-815112T2
33	SWIVEL BRACKET	3407-815112A3
34	SWIVEL BRACKET	3407-8112041
34	SWIVEL BRACKET	3407-8112052
34	SWIVEL BRACKET	3407-8112053
35	BOLT	10-16830
36	BUSHING	23-95381
37	SCREW	10-162061
37	SCREW, Adjusting	10-815034
37	SCREW, Adjusting	10-8150341
38	SPRING	24-953838
39	FRICTION PAD	952791
40	NUT, (M8) Stainless Steel (USE WHERE APPLICABLE)	11-400213
41	WASHER, Stainless Steel	12-16826
42	PIN, Dowel	17-16119
43	THRUST ROD	815092
44	SPRING	24-8150931
45	STOPPER, Tilt	8M0058619	815094
46	No Longer Available, O-RING	NLA
47	KNOB	815096

GEAR HOUSING ASSEMBLY

Below is the parts list for Mercury 3HP GEAR HOUSING ASSEMBLY:

Position No.	Part Name	OEM Number	Supersedes
-	GEAR HOUSING ASSEMBLY, Complete	1668-825122A2
-	GEAR HOUSING ASSEMBLY	1668-825123A3
-	GEAR HOUSING ASSEMBLY	1668-825123A4
1	GEAR HOUSING ASSEMBLY	1668-825122T1
1	GEAR HOUSING ASSEMBLY	1668-825123A1
1	GEAR HOUSING ASSEMBLY	1668-825123A2
2	BEARING, Ball	30-95342
3	SPACER	23-95343
4	BEARING, Ball	30-95344
5	RING, Snap	53-95345
6	ANODE	97-823913Q	823913, 95271
7	BOLT, (M6 x 16)	10-16832
8	SCREW, Drain	22-8M0229353
9	GASKET	27-95220
10	BEARING	30-95347
11	BEARING, Ball	30-95344
12	SEAL, Oil	26-95348
13	PUMP, Water	46-952871
13	PUMP, Water	46-8150782
13	PUMP, Water	46-8150783
14	O-RING	25-95288
15	IMPELLER	47-952892
16	COVER	825114	95272 (BLACK)
16	COVER	825115	815079 (MARINER GRAY)
16	COVER	8251151
17	BOLT, (M6 x 20)	10-167051
17	BOLT	10-16705	10-95302 USE WITH WASHER
18	WASHER, Stainless Steel	12-16826
19	SEAL, Oil	26-95350
20	BUSHING	23-95361
21	PROPELLER SHAFT	44-95291A1
22	SHIM	15-811647A1
23	GEAR, Pinion	43-95293
24	RING, Snap	53-815066	53-95370
25	KEY	28-95371
26	TUBE ASSEMBLY, Water	32-95359
27	GROMMET	25-953601
28	DRIVESHAFT	45-95290
29	DRIVESHAFT	45-95369
30	PIPE	95277
31	PIN, Brass	17-815111Q02	17-815111002, 17-815111, 17-95372, 17-815111 1, 17-815111Q, 17-815111Q01 (PLASTIC PROP)
31	SHEAR PIN, Stainless Steel	17-815111Q02	17-815111002, 17-815111, 17-95372, 17-815111 1, 17-815111Q, 17-815111Q01 (ALUMINUM PROP)
32	PROPELLER, (3 x 7.4 x 5.7)(Plastic)	48-815083A01	48-815083, 48-95294 1 (STANDARD)
32	PROPELLER, Aluminum (3 x 7.4 x 6)	48-815084A01	48-815084
32	PROPELLER, Aluminum (3 x 7.4 x 7)	48-815084A02	48-815084 1 (WITH RUBBER HUB)
33	COTTER PIN	18-95295
-	GASKET SET, Lower Unit	27-8M0082878	27-95220A 3

MISCELLANEOUS INFORMATION

Below is the parts list for Mercury 3HP MISCELLANEOUS INFORMATION:

Part Name	OEM Number	Supersedes
PARTS MANUAL, 2.5/3 HP(NON-SHIFT)	90-815127
SERVICE MANUAL	90-444771
DECAL SET	37-816013A90
DECAL SET	37-816013A94	37-816013A93 (DESIGN I) 2.5 BLACK
DECAL SET	37-816014A00	37-816013A96, 37-816014A96 (DESIGN II) 2.5
DECAL SET	37-816014A97	37-816014A94, 37-816014A92, 37-816014A90 Mariner 2.5 SN# 0G452499 & Below
DECAL SET	37-816014A97	37-816014A94, 37-816014A92, 37-816014A90 Mariner 2.5 SN# 0G452500 & Up
DECAL SET	37-818027A92	37-818027A91, 37-818027A95 FORCE - 3
OWNERS GUIDE	90-10100980

RECOIL AND IGNITION COMPONENTS(BREAKER POINT IGNITION)

Below is the parts list for Mercury 3HP RECOIL AND IGNITION COMPONENTS(BREAKER POINT IGNITION):

Position No.	Part Name	OEM Number	Supersedes
1	HOUSING, Starter	815067	815067 1 (BLACK)
1	HOUSING, Starter	95244
2	BOLT	10-815068
3	PLUG	95251
4	ROPE	50-12066Q10
5	HANDLE, Starter	95249
6	SPRING	24-95284
7	SHEAVE, Starter	95245
8	RATCHET	95246
9	SPRING	24-95315
10	COVER	95247
11	SPRING	24-95316
12	FRICTION PLATE	95248
13	THRUST WASHER	12-95317
14	E RING	53-95318
15	PULLEY	95250
16	BOLT	10-16828
17	LOCKWASHER	13-16818
18	FLYWHEEL MAGNETO ASSEMBLY	262-811595	262-9155 CASTING # FOT0137
19	FLYWHEEL	262-9184
20	BASE	95239
21	COIL, Exciter	95241T
22	CONDENSER	811598	95240 CASTING # FOT0137
18	FLYWHEEL MAGNETO	262-811595	262-9155 CASTING # FOT30071
19	FLYWHEEL	262-811596
20	BASE	811597
21	COIL, Exciter	811599T	811599 CASTING # FOT30071
22	CONDENSER	811598	95240 CASTING # FOT30071
23	SCREW	10-95311
24	SCREW	10-95313
25	BREAKER	95237
26	SCREW	10-95310
27	SCREW	10-16821
28	COIL, Ignition	95242T
29	SCREW	10-95314
30	LOCKWASHER	13-16818
31	SPARK PLUG	33-19796
32	CAP KIT	85-95282A1
33	SWITCH ASSEMBLY, Emergency Stop	87-823037A04	87-823037A 1, 87-898101306

RECOIL STARTER(CD IGNITION)

Below is the parts list for Mercury 3HP RECOIL STARTER(CD IGNITION):

Position No.	Part Name	OEM Number	Supersedes
1	STARTER ASSEMBLY, Recoil	8M0109575
2	HOUSING, Starter	815067	815067 1
3	SPRING	24-95284
4	SHEAVE, Starter	95245
5	RATCHET	95246
6	SPRING	24-95315
7	COVER	95247
8	SPRING	24-95316
9	FRICTION PLATE	95248
10	THRUST WASHER	12-95317
11	E RING	53-95318
12	ROPE	50-12066Q10
13	HANDLE, Starter	95249
14	PULLEY	823039
15	BOLT	10-16828
16	BOLT	10-815068
17	PLUG	95251

TOOLS, SPECIAL

Below is the parts list for Mercury 3HP TOOLS, SPECIAL:

Position No.	Part Name	OEM Number
-	PULLER KIT, Bearing	91-31229A7
-	DRIVER HEAD TOOL	91-37312T
-	DRIVER ROD TOOL, Needle Bearings	91-37323
-	INSTALLATION TOOL, Bearing	91-38628T
-	NOT SOLD SEPARATE, COLLET JAWS (SNAP ON #CG40-9)	NSS
-	NOT SOLD SEPARATE, COLLET JAWS (SNAP ON #CG41-13)	NSS
-	NOT SOLD SEPARATE, EXPANDING ROD (SNAP ON #CG40-4)	NSS
-	NOT SOLD SEPARATE, EXPANDING ROD (SNAP ON #CG41-11)	NSS
-	HOLDER TOOL, Flywheel	91-8M0161873
-	FLYWHEEL PULLER	91-83164M
-	WASHER	12-37429
-	EXPANDER TOOL, Piston Ring	91-24697
-	GAUGE TOOL	91-29287
-	PULLER ASSEMBLY, Slide Hammer	91-34569A1
-	TESTER, Eight Chamber	91-850439T1
-	GAP TOOL, Single Chamber	91-63998A1
-	TORQUE WRENCH, (0-150 lb-in)	91-66274
-	PULLER PLATE	91-37241

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