Mercury 18 (2 CYL.) (International) (0N001590 THRU 0N055284) Outboard Motor Parts Diagram & Catalog – Free PDF Download

by JLM Marine 30 Apr 2025 0 Comments

Mercury 18 (2 CYL.) (International) 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
Air Silencer and Fuel Lines
Carburetor
Clamp Bracket
Cowling
Crankshaft, Pistons and Conecting Rods
Cylinder Block
Drive Shaft Housing
Electric Start Components
Electrical
Fuel Tank(Plastic - 6.6 Gallon)
Gear Housing, Driveshaft
Gear Housing, Propeller Shaft
Gear Shift
Inlet Manifold
Recoil Starter
Remote Control
Remote Control Attaching Kit
Reverse Lock
Service/Support Material
Swivel Bracket
Throttle Linkage/Steering Handle
Tools

Accessories

Below is the parts list for Mercury 18 (2 CYL.) (International) Accessories:

Position No.	Part Name	OEM Number	Supersedes
1	DRAG LINK KIT	803795A1
2	BOLT	10-8230423
3	WASHER	12-16192
4	COLLAR	23-803796
5	NUT, Nylon	11-95374
6	WASHER	12-9539210
7	NUT, Nylon	11-161473
8	CAP	853825
9	SPACER	23-853826
10	IGNITION CHECKER	803799A1
11	TEST PROP	48-803800
12	LOCK KIT, Reverse	803797A1
13	RECTIFIER KIT	8M0123939
14	CABLE ASSEMBLY, Yellow	84-853799A4
15	CABLE ASSEMBLY, White	84-853799A3
16	HANDLE, (0.8 Meters) (0.8M)	853828
16	HANDLE, (1.0 Meters) (1.0M)	8538281
17	TEMPERATURE GAUGE, Water	79-804632T01	79-804632A 1
18	BULB	88-804634
19	DAMPER	802613
20	BRACKET	804635
21	NUT	11-802617
22	LOCKWASHER	13-168181
23	SENSOR, Water Temperature	804636
24	LEAD WIRE	84-804637

Air Silencer and Fuel Lines

Below is the parts list for Mercury 18 (2 CYL.) (International) Air Silencer and Fuel Lines:

Position No.	Part Name	OEM Number	Supersedes
1	CARBURETOR	3303-803687T01	3303-803687A 1
2	SNAP, Link Rod	803694
3	GASKET	27-803699001	27-803699
4	SILENCER, Air	803697
5	BOLT	10-163291
6	WASHER, Stainless Steel	12-16826
7	SCREW	10-803698
8	GROMMET	25-16226
9	LEVER, Choke	803696
10	PIN (Plastic)	17-16085
11	ROD, Choke	8M0155125
12	FILTER ASSEMBLY, Fuel	35-853733A1
13	SCREEN	853734
14	GASKET	27-8537023
15	CUP	853735
16	NUT	11-400213
17	WASHER	12-8M0135942
18	CLIP, Stainless Steel	54-95395
19	LINE, Fuel (1000 mm)	32-8M0057113	32-879194470, 32-95394 9
20	LINE, Fuel (1000 mm)	32-8M0057113	32-879194470, 32-95394 9
21	BUSHING	23-163362
-	GASKET SET, Powerhead Comment: (18)	27-8M0141830
-	GASKET SET, Powerhead Comment: (15)	27-8M0065497	27-803663A30, 27-803663A01 (15)

Carburetor

Below is the parts list for Mercury 18 (2 CYL.) (International) Carburetor:

Position No.	Part Name	OEM Number	Supersedes
1	CARBURETOR	3303-803687T01	3303-803687A 1
2	SCREW	10-8M0054702
3	SPRING, (11 mm)	24-162641
4	SCREW, Adjusting	10-803690
5	O-RING	25-161783
6	SCREW	10-809571003	10-855542 1
7	COVER, Carburetor	8555401
8	GASKET	27-8555412
9	JET, Pilot	80,803689	16251 4
10	PLUG	19-855566
11	MAIN NOZZLE	803692
12	JET, Main	110,803688
13	FLOAT NEEDLE	162545
14	FLOAT	162532
15	PIN	17-162561
16	SCREW	10-8536981
17	GASKET	27-855567
18	FLOAT BOWL	803691
19	SCREW, Drain	10-8M0054703	10-16261 3
20	GASKET	27-8M0224378
21	SCREW	10-162603
22	GASKET	27-8555691
23	DIAPHRAGM	8537312
24	SCREW	10-851813
25	CHECK VALVE	21-851812
26	NUT	11-851814
27	HOUSING, Pump	8537291
28	GASKET	27-855569
29	COVER	855568	803693
30	SCREW	10-8M0062252
-	REPAIR KIT, Carburetor	8M0039870	803826A 1
-	GASKET SET, Powerhead Comment: (18)	27-8M0141830
-	GASKET SET, Powerhead Comment: (15)	27-8M0065497	27-803663A30, 27-803663A01 (15)

Clamp Bracket

Below is the parts list for Mercury 18 (2 CYL.) (International) Clamp Bracket:

Position No.	Part Name	OEM Number	Supersedes
1	CLAMP BRACKET, Starboard	8M0059728	3406-803769
2	CLAMP BRACKET, Port	8M0059734	3406-803770
3	CAP NUT	11-85372214
4	TILT TUBE	898101191	853769
5	NUT	11-853722029	11-853722 13
6	THRUST ROD	16198004
7	SPRING	24-8150931
8	THUMB SCREW ASSEMBLY, 1/2 Inch Thread Size	10-16200A1
9	PAD	12-95379
10	NUT, (M6) Stainless Steel	11-400212
11	WASHER	12-95320
12	WASHER, Stainless Steel	12-16826
13	DISTANCE PIECE	898101938	803771002, 803771
14	BOLT	10-82304229
15	WASHER	12-16192
16	NUT, (M8) Stainless Steel	11-400213
17	ANODE	97-823913Q	823913, 95271
18	BOLT, (M6 x 20)	10-167051

Cowling

Below is the parts list for Mercury 18 (2 CYL.) (International) Cowling:

Position No.	Part Name	OEM Number	Supersedes
1	TOP COWL ASSEMBLY (Black-Decaled)	100-8M0073908	114-803792A10, 114-803792A 1
1	TOP COWL ASSEMBLY (Silver-Decaled	100-8M0073909	114-803792A11, 114-803792A 2
1	TOP COWL ASSEMBLY, Black - Without Decals	100-8M0073908	114-803792A10, 114-803792A 1
1	TOP COWL ASSEMBLY, Silver - Without Decals	100-8M0073909	114-803792A11, 114-803792A 2
2	CAP, Cowl Comment: (Black)	8M0129134
2	CAP, Cowl Comment: (Silver)	8037931
3	NUT, (M6) Stainless Steel	11-400212
4	LOCKWASHER, (M6)	13-400256
5	WASHER, Stainless Steel	12-953921
6	SEAL	8M0073255
7	SEAL, Rubber	25-162281
8	BOTTOM COWL	4000-803791
9	GROMMET	25-162311
10	GROMMET	25-162312
11	SEAL, Oil	26-8036675
12	HOOK	162221
13	BOLT, (M6 x 14)	10-16223
14	WASHER, Stainless Steel	12-953921
15	WAVE WASHER	13-16221
16	WASHER	12-953922
17	HOOK LEVER	162186
18	SEAL	26-16219
19	BUSHING	23-163365
20	BOLT	10-16705	10-95302
21	WASHER, Stainless Steel	12-16826
-	GASKET SET, Powerhead Comment: (18)	27-8M0141830
-	GASKET SET, Powerhead Comment: (15)	27-8M0065497	27-803663A30, 27-803663A01 (15)

Crankshaft, Pistons and Conecting Rods

Below is the parts list for Mercury 18 (2 CYL.) (International) Crankshaft, Pistons and Conecting Rods:

Position No.	Part Name	OEM Number	Supersedes
1	CRANKSHAFT ASSEMBLY Comment: SN# 0N046439 & Below	8M0047749	474-803672A09, 474-803672A04, 474-803672A 1 SN# 0N046439 & Below
1	CRANKSHAFT KIT Comment: SN# 0N046440 & Up	8M0047749	474-803672A09, 474-803672A04, 474-803672A 1 SN# 0N046440 & Up
2	PIN, Crank	8M0074253	803673
3	CRANKSHAFT, A	474-803672A02	474-803672 1
4	BEARING, Needle	31-803675
5	CONNECTING ROD	629-803674T	629-803674
6	CRANKSHAFT, B	474-8M0090845	474-803672 2
7	BEARING, Ball	30-160494
8	SEAL	26-8036672
9	PIN	17-161791
10	CRANKSHAFT, C	474-8M0090846	474-803672 3
11	CRANKSHAFT, D	474-8036724
12	BEARING, Ball	30-160494
13	SPACER	23-853715
14	E-CLIP	53-853714	53-803676
15	KEY	28-160531
16	BEARING, Roller	31-16052
17	PISTON Comment: (Standard)(18)	779-803677T	779-803677 (Standard)(18)
17	PISTON Comment: (0.5 Oversize)(18)	779-803677T01	779-803677 1 (0.5 Oversize)(18)
17	PISTON Comment: (Standard)(15)	779-803677T04	779-803677T02, 779-803677002 (Standard)(15)
17	PISTON Comment: (0.5 Oversize)(15)	779-803677003
18	RING SET, Piston Comment: (Standard)(18)	39-803678A1
18	RING SET, Piston Comment: (0.5 Oversize)(18)	39-803678A2
18	RING SET, Piston Comment: (Standard)(15)	39-803678A07
18	RING SET, Piston Comment: (0.5 Oversize)(15)	39-803678A08
19	CLIP	53-16057
20	PIN, Piston Comment: (18)	41-803680002	41-803680 (18)
20	PIN, Piston Comment: (15)	41-825713002	41-825713001 (15)
-	POWERHEAD ASSEMBLY Comment: (18) SN# 0N046439 & Below	8M0046405	803679A10, 803679A 4 (18) SN# 0N046439 & Below
-	POWERHEAD ASSEMBLY Comment: (18) SN# 0N046440 & Up	8M0046405	803679A10, 803679A 4 (18) SN# 0N046440 & Up
-	POWERHEAD ASSEMBLY Comment: (15) SN# 0N046439 & Below	8M0047750	803679A08, 803679A06 (15) SN# 0N046439 & Below
-	POWERHEAD ASSEMBLY Comment: (15) SN# 0N046440 & Up	8M0047750	803679A08, 803679A06 (15) SN# 0N046440 & Up

Cylinder Block

Below is the parts list for Mercury 18 (2 CYL.) (International) Cylinder Block:

Position No.	Part Name	OEM Number	Supersedes
1	CYLINDER BLOCK Comment: (18)	878-803660A1
1	CYLINDER BLOCK ASSEMBLY Comment: (15)	878-803660A06
2	NIPPLE Comment: SN# 0N010369 & Below	22-8129601
2	CONNECTOR Comment: SN# 0N010370 & Up	22-8M0064617	22-812960, 22-95301 SN# 0N010370 & Up
3	BLEED VALVE Comment: SN# 0N010369 & Below	21-853696
3	NIPPLE Comment: SN# 0N010370 & Up	22-812960006
4	PIN, Dowel	17-16119
5	BOLT	10-166951
6	WASHER	12-16826
7	CHECK VALVE	21-16700
8	SPRING	24-8130282
9	PLUG	19-803661
10	BOLT, (M6 x 16)	10-16832
11	ANODE	97-823913Q	823913, 95271
12	CYLINDER HEAD Comment: (18)	979-803662
12	CYLINDER HEAD Comment: (15)	979-803662003
13	GASKET Comment: (18)	27-8M0141796
13	GASKET Comment: (15)	27-803663034	27-803663018 (15)
14	BOLT	10-168282
15	COVER	853705A01	853705
16	CLAMP Comment: SN# 0N004305 & Up	54-813275
17	GASKET	27-8M0214960
18	THERMOSTAT	8M0228411
19	SPARK PLUG Comment: (NGK#B7HS-10)	33-8M0181925
19	SPARK PLUG, (NGK#BP7HS-10) Comment: (With Resistance - NGK#BR7HS-10)	33-8M0114744
20	BOLT	10-803664	10-8M0075295
21	WASHER	12-4002217
22	COVER, Exhaust - Outer	803666
23	GASKET	27-803663024	27-803663 1
24	COVER, Exhaust - Inner	8M0065485	803666 1
25	GASKET	27-803663025	27-803663 2
26	BOLT	10-8150683
27	WASHER	12-16826
28	THRUST PLATE, Upper	803671
29	THRUST PLATE, Lower	8036711
30	O-RING	25-803670
31	SEAL, Oil	26-8M0065585	26-803667 1
32	GASKET	27-803663020	27-803663 6
33	PIN, Dowel	17-16119
34	CLIP	54-95224
35	TUBING, (220 mm)	32-8M0057112
36	TUBING, (280 mm) Comment: SN# 0N010369 & Below	32-8M0057112
36	HOSE, Rubber with Arrow (730mm) Comment: SN# 0N010370 & Up	32-898101272
37	O-RING	25-853709
38	SEAL, Oil	26-803667
39	END CAP, Upper	1100-803668
40	SET RING	803669
41	GUIDE PLATE	853711
42	BOLT	10-166953
-	GASKET SET, Powerhead Comment: (18)	27-8M0141830
-	GASKET SET, Powerhead Comment: (15)	27-8M0065497	27-803663A30, 27-803663A01 (15)
-	POWERHEAD ASSEMBLY Comment: (18) SN# 0N046439 & Below	8M0046405	803679A10, 803679A 4 (18) SN# 0N046439 & Below
-	POWERHEAD ASSEMBLY Comment: (18) SN# 0N046440 & Up	8M0046405	803679A10, 803679A 4 (18) SN# 0N046440 & Up
-	POWERHEAD ASSEMBLY Comment: (15) SN# 0N046439 & Below	8M0047750	803679A08, 803679A06 (15) SN# 0N046439 & Below
-	POWERHEAD ASSEMBLY Comment: (15) SN# 0N046440 & Up	8M0047750	803679A08, 803679A06 (15) SN# 0N046440 & Up

Drive Shaft Housing

Below is the parts list for Mercury 18 (2 CYL.) (International) Drive Shaft Housing:

Position No.	Part Name	OEM Number	Supersedes
1	HOUSING, Driveshaft Comment: (Short)	1500-8M0232661
1	HOUSING, Driveshaft Comment: (Long)	1500-8M0121378
2	STUD	16-879194301	16-853718004, 16-879194299, 16-811653 2
3	BOLT	10-8M0106720
4	WASHER	12-8M0135942
5	GASKET	27-8M0231496
6	PIN, Dowel	17-16119
7	GROMMET	25-803736
8	GASKET	27-803728003	27-803728
9	BOLT	10-823042
10	TUBE, Exhaust	803727
11	BOLT	10-82304223
12	GROUND WIRE	84-898101089	84-803779, 84-853740 1
13	WASHER, Stainless Steel	12-953921
14	RUBBER MOUNT, Side	803775
15	RUBBER MOUNT, Front	8037751
16	COVER	803776
17	WASHER	12-8M0135942
18	NUT, (M8) Stainless Steel	11-400213
19	BOLT, (M6 x 20)	10-167051
20	ANODE	97-823913Q	823913, 95271
21	COVER	8037761
22	BOLT	10-879194309	10-823042057
23	BOLT	10-879194310	10-16126 3, 10-823042056
-	GASKET SET, Lower Unit	27-8M0082884	27-8M0075042, 27-803728A02, 27-803728A99
-	GASKET SET, Powerhead Comment: (18)	27-8M0141830
-	GASKET SET, Powerhead Comment: (15)	27-8M0065497	27-803663A30, 27-803663A01 (15)

Electric Start Components

Below is the parts list for Mercury 18 (2 CYL.) (International) Electric Start Components:

Position No.	Part Name	OEM Number	Supersedes
-	STARTER MOTOR KIT, Electric	8M0095390
1	STARTER MOTOR ASSEMBLY	50-803835T01	50-803835A 1
2	PINION	803836
3	BRUSH SET (Positive)	803837
4	BRUSH SET (Negative)	8038371
5	HOLDER, Brush	803838
6	BOLT	10-161267
7	LOCKWASHER	13-17025
8	CABLE ASSEMBLY, Starter	84-8M0069818	84-853815 1
9	CAP	85-8538161
10	MAIN SWITCH	87-853820A1
11	PROTECTOR	853821
12	CLAMP	54-803563005	54-803563 1
13	FLYWHEEL (Wiring Gear)	262-8037001
14	BRACKET	803839
15	CAP	85-853816
16	WIRE ASSEMBLY, Fuse	84-853813A1
17	FUSE	88-853814
18	SOLENOID, Starter	89-853809T	89-853809
19	BOLT	10-162235
20	BOLT, (M6 x 14)	10-16223
21	CLAMP, Plastic	56762
22	SWITCH, Neutral	87-8M0127937
23	SPACER	23-803842
24	SCREW	10-85554411
25	BRACKET	8037151
26	ACTUATOR	803841
27	GROUND WIRE	84-803820
28	RECTIFIER	8538116
29	SCREW, (25 mm)	10-16123
30	LOCKWASHER	13-16079
31	WIRE, Battery	84-853815

Electrical

Below is the parts list for Mercury 18 (2 CYL.) (International) Electrical:

Position No.	Part Name	OEM Number	Supersedes
1	FLYWHEEL	262-803700002	262-803700
2	NUT, Silver Comment: SN# 0N046439 & Below	11-8537224
2	NUT, Gold Comment: SN# 0N046440 & Up	11-851832001
3	WASHER	12-8537011
4	PLATE ASSEMBLY, Coil	803701A1
5	COIL, Exciter	803702T	803702
6	SCREW	10-95313
7	ALTERNATOR SET	803703
8	SCREW	10-82303113
9	GUIDE, Wire	853738
10	SCREW	10-8230314
11	CLAMP	54-803828
12	SCREW	10-8230315
13	CAM, Throttle	803829
14	BOLT	10-82304226
15	SCREW	10-855544024	10-803708
16	CLAMP	54-813275
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	CAP	853741
19	PLUG	19-853994	19-853994001
20	HARNESS ASSEMBLY	84-17175
21	SWITCH ASSEMBLY, Stop - Lanyard	87-823037A2
22	LANYARD	823054
23	SCREW	10-85554410
24	CLAMP	54-803563005	54-803563 1
25	BOLT, (M6 x 12)	10-8230427
26	CD UNIT	8M0180176
27	WASHER, Stainless Steel	12-953921
28	BRACKET	803705
29	BOLT	10-82304219
30	BOLT	10-82304225
31	LOCKWASHER, (M6)	13-400256
32	WASHER, Stainless Steel	12-16826
33	GASKET	27-851834
34	SPACER	23-803707
35	COIL ASSEMBLY, Ignition Comment: SN# 0N004305 & Up	8M0121784
35	COIL ASSEMBLY, Ignition Comment: SN# 0N004304 & Below	8M0121784
36	BOOT, With Resistance	85-855543

Fuel Tank(Plastic - 6.6 Gallon)

Below is the parts list for Mercury 18 (2 CYL.) (International) Fuel Tank(Plastic - 6.6 Gallon):

Position No.	Part Name	OEM Number	Supersedes
1	TANK ASSEMBLY, Fuel - Plastic 6.6 Gallon	1259-859063A1
2	GAUGE/CAP ASSEMBLY	823536
3	CONNECTOR KIT, Fuel	22-8M0175545
4	O-RING	25-823533	25-18471
5	SCREEN	35-823534	35-18029
6	FUEL LINE ASSEMBLY	32-8M0126969
7	CLAMP	54-853798
8	CONNECTOR, Fuel	22-8M0120628
9	BULB ASSEMBLY, Primer	13330Q07
10	CHECK VALVE ASSEMBLY (Inlet)	21-13331A3
11	CHECK VALVE ASSEMBLY (Outlet)	21-13331A4
12	CLAMP, Nylon (Large)	54-4158210
13	CLAMP, Nylon (Small)	54-41582Q7
14	CONNECTOR, (.250-18)	22-89771Q2
15	CLAMP, Nylon	54-41582Q7

Gear Housing, Driveshaft

Below is the parts list for Mercury 18 (2 CYL.) (International) Gear Housing, Driveshaft:

Position No.	Part Name	OEM Number	Supersedes
-	GEAR HOUSING ASSEMBLY Comment: Short	1668-8M0070903	1668-803729A 1 Short
-	GEAR HOUSING ASSEMBLY Comment: Long	1668-8M0070904	1668-803729A 2 Long
1	GEAR HOUSING ASSEMBLY, Basic	1668-803729A3
2	BEARING, Needle	31-160521
3	SCREW, Drain	22-8M0229353
4	GASKET	27-95220
5	ANODE	97-803731
5	TRIM TAB	853762T01
6	BOLT, (M6 x 16)	10-16832
7	STRAINER, Water	16133
8	SCREW	10-16134
9	STRAINER, Water	803730002	803730
10	SCREW	10-17635
11	NUT	11-85372216
12	SCREW, Drain	22-8M0229353
13	GASKET	27-95220
14	WASHER	12-8M0135942
15	NUT, (M8) Stainless Steel	11-400213
16	GUIDE	803758
17	TUBE, Water Comment: Short	32-803755
17	TUBE, Water Comment: Long	32-8037551
18	SEAL	26-8036673
19	STOPPER	803756
20	GUARD PIPE	803754
21	GROMMET	25-8M0065492	25-803759
22	HOUSING, Water Pump, Upper	46-803750A05	46-803750
23	SEAL	26-8036674
24	BOLT	10-823042046	10-823042 5
25	LINER, Water Pump	803751
26	IMPELLER	47-8M0214944
27	GUIDE PLATE	803753
28	HOUSING, Water Pump, Lower	46-803750A04	46-803750 1
29	O-RING	25-8537096
30	SEAL, Oil	26-803752
31	SHIM, (0.1)	15-813276001
31	SHIM, (0.15)	15-813276015
31	SHIM, (0.3)	15-813276003
31	SHIM, (0.5)	15-813276005
32	BEARING, Ball	30-16132T05
33	DRIVESHAFT Comment: Short	45-803738
33	DRIVESHAFT Comment: Long	45-8037381
34	KEY	28-8M0173418
35	GEAR, Pinion	43-8M0183193
36	NUT	11-85372211
-	REPAIR KIT, Gear Housing Water Pump	46-8M0070780	853792T04, 853792A 4
-	GASKET SET, Lower Unit	27-8M0082884	27-8M0075042, 27-803728A02, 27-803728A99

Gear Housing, Propeller Shaft

Below is the parts list for Mercury 18 (2 CYL.) (International) Gear Housing, Propeller Shaft:

Position No.	Part Name	OEM Number	Supersedes
-	GEAR HOUSING ASSEMBLY Comment: (Short)	1668-8M0070903	1668-803729A 1 (Short)
-	GEAR HOUSING ASSEMBLY Comment: (Long)	1668-8M0070904	1668-803729A 2 (Long)
1	GEAR HOUSING ASSEMBLY, Basic	1668-803729A3
37	BEARING, Ball	30-16132T01
38	GEAR, Forward	43-8M0183172
39	PUSH ROD	803747
40	HOLDER	853764003	853764
41	SPRING	24-803746
42	CLUTCH	52-803745
43	PIN	17-160851
44	SPRING	24-176672
45	PROPELLER SHAFT	44-8M0088568	44-879147T96, 44-803744T03, 44-803744003, 44-879147096, 44-803744
46	WASHER	12-803742
47	GEAR, Reverse	43-8M0183196
48	CARRIER ASSEMBLY, Bearing	8M0070877	803732T04, 803732A 1
49	O-RING	25-8M0087846	25-803735
50	BEARING, Ball	30-16132T01
51	BEARING, Needle	31-803734
52	SEAL, Oil	26-161622
53	BOLT	10-823042
54	THRUST HOLDER	8M0143215
55	PROPELLER, 6	48-879781A10	48-879781
55	PROPELLER, 7	48-8M0075313	48-879779010
55	PROPELLER, 8	48-897748A11	48-897748A10, 48-879780A10, 48-879780, 48-879780010
55	PROPELLER, 8.5	48-803832A10	48-803832
55	PROPELLER, 9	48-897750A11	48-897750A10, 48-853790A10, 48-803832 1
-	RUBBER HUB	8M0075314	879782
56	WASHER	12-161402
57	PROP NUT	11-161471
58	COTTER PIN	18-8150264
-	GASKET SET, Lower Unit	27-8M0082884	27-8M0075042, 27-803728A02, 27-803728A99

Gear Shift

Below is the parts list for Mercury 18 (2 CYL.) (International) Gear Shift:

Position No.	Part Name	OEM Number
1	CAM	8M0172382
2	PIN	17-16179
3	BUSHING	23-803761
4	CLAMP	803762
5	SCREW	10-898103153
6	O-RING	25-8537096
7	O-RING	25-161772
8	CAM ROD Comment: (Short)	803760
8	CAM ROD Comment: (Long)	8037601
9	SHIFT ROD JOINT	803767
10	PIN, Dowel	17-952189
11	GROMMET	25-8037591
12	LEVER, Shift	803763
13	STOPPER	24-8M0138738
14	BOLT, (M6 x 16)	10-16832
15	LOCKWASHER, (M6)	13-400256
16	BUSHING	23-163361
17	BOLT, (M6 x 16)	10-16832
18	WASHER, Stainless Steel	12-16826
19	PLATE, Stopper	803764
20	ADJUSTER, Shift Lever	803765
21	COTTER PIN	18-8150268
22	WAVE WASHER	13-8537234
23	PIN	17-160852
24	COTTER PIN	18-81502610
25	LEVER, Shift Rod	803768
26	COTTER PIN	18-8150269
27	SHIFT ROD Comment: (Short)	803766
27	SHIFT ROD Comment: (Long)	8037661
28	GROMMET	25-16823

Inlet Manifold

Below is the parts list for Mercury 18 (2 CYL.) (International) Inlet Manifold:

Position No.	Part Name	OEM Number	Supersedes
1	MANIFOLD ASSEMBLY, Inlet	803685A1
2	NIPPLE	22-8129601
3	SCREW	10-82303111
4	CLIP	54-95224
5	HOSE, Rubber (1 Meter)	32-8M0057112
6	ROD	803681
7	END, Throttle Lever	803682
8	ARM, Throttle (With Roller)	879148022	803825
9	SCREW	10-8M0050972	10-803683
10	BOLT	10-16696
11	WASHER	12-809931044	12-809931042, 13-815064, 12-95222
12	GASKET	27-803663030	27-803663 3
13	REED PLATE ASSEMBLY	803686A1
14	GASKET	27-803663029	27-803663 4
15	STUD	16-8036841
16	STUD	16-803684
17	BOLT	10-161265
18	LOCKWASHER	13-16079
19	BOLT	10-8150631
20	NUT	11-162711
-	GASKET SET, Powerhead Comment: (18)	27-8M0141830
-	GASKET SET, Powerhead Comment: (15)	27-8M0065497	27-803663A30, 27-803663A01 (15)
-	POWERHEAD ASSEMBLY Comment: (18) SN# 0N046439 & Below	8M0046405	803679A10, 803679A 4 (18) SN# 0N046439 & Below
-	POWERHEAD ASSEMBLY Comment: (18) SN# 0N046440 & Up	8M0046405	803679A10, 803679A 4 (18) SN# 0N046440 & Up
-	POWERHEAD ASSEMBLY Comment: (15) SN# 0N046439 & Below	8M0047750	803679A08, 803679A06 (15) SN# 0N046439 & Below
-	POWERHEAD ASSEMBLY Comment: (15) SN# 0N046440 & Up	8M0047750	803679A08, 803679A06 (15) SN# 0N046440 & Up

Recoil Starter

Below is the parts list for Mercury 18 (2 CYL.) (International) Recoil Starter:

Position No.	Part Name	OEM Number	Supersedes
-	STARTER ASSEMBLY, Recoil	8M0121783
1	HOUSING, Starter	8M0121770
2	PIN, Roll	17-952187
3	NUT, (M6) Stainless Steel	11-400212
4	LOCKWASHER	13-16818
5	WASHER	12-809931044	12-809931042, 13-815064, 12-95222
6	PLATE, Seal	8M0073654	803720
7	HANDLE, Starter Rope	8126401
8	O-RING	25-16109
9	RETAINER	853755
10	ROPE, Starter	50-161081
11	SPRING, Starter	24-8126451
12	REEL	803717
13	GUIDE	8037181
14	GUIDE	803718
15	SHAFT, Starter	803719
16	BOLT	10-16105
17	BUSHING	23-8537432
18	RATCHET	812635T01	812635 1
19	WASHER	12-161404
20	E RING	53-953181
21	SNAP, Link Rod	8M0169412
22	LOCK LINK, Starter	8036812
23	LINK ROD, Throttle Stop	8036813
24	STOPPER, Throttle	803722
25	SHAFT, Throttle Stop	8M0106723
26	WAVE WASHER	13-17641
27	SCREW	10-16123
28	NUT	11-16081
29	CAM	803721
30	COLLAR	23-855545
31	SCREW	10-855544
32	SCREW	10-8555449
33	SPRING	24-812645007	24-17638
34	COLLAR	23-895130	23-17637, 23-17637001
35	LOCK, Starter	17634
36	BOLT	10-16830
37	WASHER, Stainless Steel	12-16826
38	CLAMP	54-813275
-	GASKET SET, Powerhead Comment: (18)	27-8M0141830
-	GASKET SET, Powerhead Comment: (15)	27-8M0065497	27-803663A30, 27-803663A01 (15)

Remote Control

Below is the parts list for Mercury 18 (2 CYL.) (International) Remote Control:

Position No.	Part Name	OEM Number	Supersedes
-	REMOTE CONTROL (With Quicksilver Decal)	8M0178532
1	HOUSING KIT, Front	16910A1
2	CAP ASSEMBLY	16916A1
3	LEVER	16913T
4	LOCK ARM	16915
5	SCREW, (M5 x 10)	10-40056105
6	BRACKET, Lock Bar Support	16921
7	SCREW, (M4 x 10)	10-4005685
8	SPRING	24-16924
9	GRIP	16914
10	PLUG	17016
11	HOLDER, Neutral Lock	16899T
12	SCREW, (M5 x 18)	10-40118107
13	LOCKWASHER, External	13-16923
14	COVER	16917
15	SCREW, (M6 x 110)	10-40116110T	10-40116110
16	BRAKE ADJUSTER	16920
17	WASHER	12-16896
18	RING, Retaining	53-13194
19	ARM ASSEMBLY, Brake	16895
20	BEARING, (1.750 Inside Diameter) (1.75 Inches Inside Diameter)	23-16875
21	WASHER	12-16874
22	GEAR SHIFT ASSEMBLY	16918A3
23	CLIP ASSEMBLY	54-85899A1
24	NUT, (M5)	11-401385
25	BEARING (.36 Inches Inside Diameter)	23-16871
26	BEARING, (.750 Inside Diameter) (.75 Inches Inside Diameter)	23-16868
27	WASHER	12-16870
28	LOCKWASHER	13-16872
29	BEARING (.87 Inches Inside Diameter)	23-16869
30	GEAR, Drive	16892T
31	PLATE/STUD ASSEMBLY	850723A2
32	ROLLER, Cam	16873
33	SCREW, (M8 x 30)	10-4007154
34	WASHER	12-8M0207778
35	SPRING	24-16882
36	CLIP	16880
37	SCREW, (M4 x 6)	10-4005683
38	ROLLER, Detent	16879
39	SWITCH ASSEMBLY	87-17277T
40	SCREW, (M3 x 16)	10-4005647
41	CLIP	16886
42	ROLLER	16884
43	SPRING	24-16888
44	COVER, Bottom	16912T
45	DRUM ASSEMBLY	16883
46	WAVE WASHER	13-16922
47	COVER, Top	16911T
48	BEARING, (.810 Inside Diameter) (.81 Inches Inside DIamter)	23-16887
49	LEVER ASSEMBLY	16919A1
50	SCREW, (M5 x 12)	10-40118106
51	SPACER	17063T
52	WASHER, (.255 x .620 x .030) Stainless Steel	12-35280
53	NUT, (M6)	11-401196
54	SWITCH ASSEMBLY, Ignition (See Below for Keys)	87-17009A5
55	NUT, Special - Chrome Brass	11-879755	11-93543
56	COVER ASSEMBLY, Key	90468A1
57	HARNESS ASSEMBLY	84-850731A2
58	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
59	PLUG	19-11023
60	LANYARD ASSEMBLY	15920Q54
-	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

Remote Control Attaching Kit

Below is the parts list for Mercury 18 (2 CYL.) (International) Remote Control Attaching Kit:

Position No.	Part Name	OEM Number
-	ATTACHING KIT, Remote Control	803874A1
1	PLATE, Steering Hook	8538022
2	SCREW, (M8 x 30)	10-4000354
3	LOCKWASHER, (M6)	13-400256
4	WASHER	12-16192
5	NUT, (M8) Stainless Steel	11-400213
6	BRACKET	803877
7	SCREW	10-162233
8	CONNECTOR SHIFT KIT	853804
9	WASHER	12-17029
10	NUT, (M6) Stainless Steel	11-400212
11	BOLT	10-898103179
12	BRACKET	803875
13	LOCKWASHER	13-16079
14	NUT, Stainless Steel	11-16081
15	NUT, (M6) Stainless Steel	11-400212
16	LOCKWASHER, (M6)	13-400256
17	BALL JOINT	853801
18	BRACKET	17026
19	CAP	17027
20	SPRING	24-17028
21	GROMMET	25-853803
22	CABLE ASSEMBLY (3.9M)	84-853799A1
22	CABLE ASSEMBLY (5.9M)	84-853799A2
23	GROMMET	25-162262

Reverse Lock

Below is the parts list for Mercury 18 (2 CYL.) (International) Reverse Lock:

Position No.	Part Name	OEM Number	Supersedes
1	STOP, Tilt	898103103	803780
2	BOLT	10-168307
3	LOCKWASHER, (M6)	13-400256
4	SET PLATE	8M0157137
5	BUSHING	23-163364
6	STOP	853774
7	SPRING	24-953832
8	PIN, Spring	17-170331
9	ROD, Reverse Lock	17-8037841
10	COTTER PIN	18-8150261
11	ARM, Reverse Lock	803783001	803783
12	LOCK, Reverse	803782
13	SPRING	24-8037461
14	SPRING	24-803788
15	LINK, Reverse Lock	803787
16	SHAFT, Reverse Lock	17-803784002	17-803784
17	E RING	53-160572
18	LEVER, Reverse Lock	803789
19	WASHER, Stainless Steel	12-953921
20	BOLT	10-803790
21	WAVE WASHER	13-17641
22	GRIP	8M0183798
23	BUTTON	8M0051399	853776

Service/Support Material

Below is the parts list for Mercury 18 (2 CYL.) (International) Service/Support Material:

Part Name	OEM Number	Supersedes
PARTS MANUAL, 15/18 HP (2 Cylinder) International	90-803827
DECAL SET Comment: (SeaPro 18)	37-888737A02
DECAL SET Comment: (Black)	37-857117A00
DECAL SET Comment: (Gray)(1999/2000)	37-857116A03	37-857116A01, 37-857116A99 (Gray)(1999/2000)
DECAL SET Comment: (Gray)(2001/2002)	37-857116A03	37-857116A01, 37-857116A99 (Gray)(2001/2002)
DECAL SET Comment: (Gray)(2003 and up)	37-857116A03	37-857116A01, 37-857116A99 (Gray)(2003 and up)

Swivel Bracket

Below is the parts list for Mercury 18 (2 CYL.) (International) Swivel Bracket:

Position No.	Part Name	OEM Number	Supersedes
1	SHAFT, Steering	8M0149919
2	BOLT	10-803777
3	WASHER	12-168261
4	WASHER	12-8M0056392	12-853822003, 12-853822 1
5	MOUNT, Rubber (Upper)	8M0153613
6	DAMPER RUBBER	803778
7	THRUST PLATE	803774
8	BUSHING	23-163363
9	O-RING	25-161091
10	SWIVEL BRACKET	3407-803772
11	FITTING, Grease	22-824969
12	CAP	808599
13	BUSHING	23-8537435
14	FRICTION PLATE	162052
15	SPRING	24-953831
16	SCREW, (M8 x 30)	10-4000354

Throttle Linkage/Steering Handle

Below is the parts list for Mercury 18 (2 CYL.) (International) Throttle Linkage/Steering Handle:

Position No.	Part Name	OEM Number	Supersedes
-	HANDLE ASSEMBLY	8M0059950	16075A 3
-	HANDLE ASSEMBLY	8M0133194
1	GRIP	160861
2	SCREW	10-8150461
3	HANDLE, Steering	8M0055716	16075T02
4	DECAL	37-8M0097201
5	BOLT	10-8M0050498	10-8M0047526, 10-823042 2
6	NUT, Nylon	11-8537227
7	BOLT	10-8M0111108	10-8M0102998
8	COTTER PIN	18-8150263
9	SPACER	23-8537152
10	SPACER	23-16191
11	BUSHING	23-16336
12	LINK ROD	803710001	803710
13	COTTER PIN	18-8150262
14	WASHER	12-953925
15	ROD JOINT	8537451
16	PIN	853749001	853749
17	NUT	11-400212
18	SHAFT, Throttle	803712
19	BOLT	10-82304227
20	BRACKET	803715
21	E RING	53-160572
22	GROMMET	25-16823
23	COLLAR	23-952869
24	GEAR, Pinion	43-8M0182337
25	GROMMET Comment: (Remote Control)	25-16226
26	WAVE WASHER	13-8537232
27	SHAFT, Throttle	160931
28	ARM, Advancer	803709
29	SNAP, Link Rod	853748
30	LINK ROD ADVANCER	803681006	803681 1
31	NUT	11-16081
32	SCREW	10-888786	10-853699 1
33	SCREW	10-16123
34	BALL JOINT	853744001	853744
35	CAP	853745
36	BUSHING	23-853743
37	STUD	16-879194297	16-853718 1, 16-811654002
38	WASHER	12-8M0135942
39	NUT, (M8)	11-95374

Tools

Below is the parts list for Mercury 18 (2 CYL.) (International) Tools:

Position No.	Part Name	OEM Number	Supersedes
1	PULLER ASSEMBLY TOOL, Flywheel	91-8M0059838	91-804552001
2	INSTALLER/REMOVER TOOL, Piston Pin	91-804764
3	SOCKET	91-804762	91-895195002
4	WRENCH TOOL	91-85399612
5	PULLER KIT, Needle Roller Bearing	91-895195A01	91-853996 20
6	FLANGE	91-8031332
7	SHAFT	91-8031333
8	WASHER	12-1614010
9	NUT	11-85372220
10	FLANGE	91-8031336
11	TOOL	91-8539966
12	TOOL	91-8539968
13	SNAP TOOL, Clutch Pin	91-804763
-	TOOL, Backlash Measuring Collar Comment: (Not Shown)	91-895216003
-	TOOL, Flywheel Puller Comment: (Not Shown)	91-8M0059838	91-804552001 (Not Shown)
-	TOOL, Flywheel Stripper Comment: (Not Shown)	91-8M0059838	91-804552001 (Not Shown)

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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.