Mercury 50MH (0N056165 & Up) Outboard Motor Parts Diagram & Catalog – Free PDF Download

by JLM Marine 30 Apr 2025 0 Comments

Mercury 50MH Outboard Motor Parts Diagram & Catalog – Free PDF Download

Accessories

Below is the parts list for Mercury 50MH Accessories:

Position No.	Part Name	OEM Number	Supersedes
1	SINGLE REMOTE CONTROL Comment: (Trim In Handle)	8M0223091
1	REMOTE CONTROL Comment: (No Trim)	8M0046402	802616A02 (No Trim)
2	SCREW	10-853989
3	SPACER	23-853990
4	WASHER	12-853991
5	NUT, (M6) Stainless Steel	11-400212
6	TERMINAL EYE	85-8539921
7	E RING	53-160572
8	GROMMET	25-853993
-	CAP (No Trim)	853741
-	METER/SENDER KIT, Trim	802611A2
9	TRIM METER KIT	802611A1
10	BULB	88-802612
11	DAMPER	802613
12	BRACKET	802614
13	INSULATED WASHER	12-802615
14	WASHER	12-16335
15	LOCKWASHER	13-168181
16	NUT	11-802617
17	SENDER, Trim	851875
18	CLAMP	54-17169
19	SCREW	10-8555445
20	BOLT	10-16705	10-95302
21	WASHER, Stainless Steel	12-953921
22	LEAD WIRE	84-8M0078284	84-802998A 2
23	TOOL KIT	91-802618
24	ROPE, Starter Safety	50-812639003	50-812639 2
25	FLUSH PLUG	168411
26	TEMPERATURE GAUGE, Water	79-804632T01	79-804632A 1
27	BULB	88-804634
28	DAMPER	802613
29	BRACKET	804635
30	NUT	11-802617
31	LOCKWASHER	13-168181
32	SENSOR, Water Temperature	804636
33	LEAD WIRE	84-804637
34	HOUSING KIT, XL Extension	8M0127367
35	CABLE ASSEMBLY, White (Handle)	84-853799A3
35	CABLE ASSEMBLY, Yellow (Handle)	84-853799A4
-	MANIFOLD ASSEMBLY, Intake	802810A1
-	STARTER MOTOR KIT	8M0188346
-	TACHOMETER	79-804375A1
-	RECTIFIER KIT	888768
-	CAP (No Trim)	853741
1	MOUNTING KIT, Twin Remote Control	10-853997A1
2	TIE BAR KIT	896444A01
3	COLLAR	23-9528622
4	WASHER	12-9539210
5	BOLT	10-8518666
6	COTTER PIN	18-8150267
7	SCREW	10-851866015
8	PLATE, Steering Rod	803548003
9	NUT, Nylon	11-161473
10	TIE BAR KIT	896444A02
11	PLATE, Steering Hook Comment: SN# ON175257 & Below	17024004
11	PLATE, Steering hook Comment: SN# ON175258 & Up	8M0074790
12	STUD Comment: SN# ON175257 & Below	16-853789002
12	STUD Comment: SN# ON175258 & Up	8M0074791
13	NUT, Nylon Comment: SN# ON175257 & Below	11-95374
13	NUT Comment: SN# ON175258 & Up	11-8M0074788
14	WASHER Comment: SN# ON175257 & Below	12-16192
14	WASHER Comment: SN# ON175258 & Up	12-879194343	12-95392014 SN# ON175258 & Up
15	CREVICE ASSEMBLY	896445A01
16	COLLAR	23-95286028
17	WASHER	12-9539210
18	SCREW	10-851866016
19	NUT, Nylon	11-161473
20	BOLT	10-851866007
21	SPACER	23-853826

Air Silencer

Below is the parts list for Mercury 50MH Air Silencer:

Position No.	Part Name	OEM Number	Supersedes
1	AIR SILENCER Comment: (40)	855556
1	AIR SILENCER Comment: (40 Lightning XR/50)	8555561
2	LOCK PLATE	855557
3	SCREW, (M5 x 16)	10-855558
4	COVER	855559
5	SEAL, Rubber	26-855560
6	SCREW, Tapping	10-162572
7	C-LINK	8M0163143
8	ROD, Snap	16333
9	STOPPER (Electric)	855562
10	LINK ROD	855563001	855563
11	CAP	855564
12	CAP	853745
13	NUT	11-16081
14	ROD	8555611
15	ROD, Snap	16333
16	BUSHING	23-851858005	23-16176 3
17	KNOB, Choke	8M0155127
18	O-RING Comment: (40)	25-161783
18	GASKET Comment: (40 Lightning XR/50)	27-802807
-	REPAIR KIT, Carburetor	853780A2
-	GASKET SET, Powerhead	27-8M0081614	27-8M0062092, 27-8M0047034, 27-812937A03, 27-812937A02, 27-812937A98

Bottom Cowl, 0N134078 and below

Below is the parts list for Mercury 50MH Bottom Cowl, 0N134078 and below:

Position No.	Part Name	OEM Number	Supersedes
1	BOTTOM COWL	2189-8537773
2	MOUNT, Rubber	23-8537437
3	GROMMET	25-16823
4	GROMMET (Manual)	25-162263
5	GROMMET (Non-Oil Injection)	25-16226
6	PILOT LAMP (Oil Injection)	804057
7	GROMMET	25-16226
8	GROMMET	25-8518502
9	GROMMET	25-8518503
10	GROMMET	25-162284
11	PLUG	19-855549
12	BRACKET	8518364
13	SCREW	10-823042075	10-851866 5
14	LOCKWASHER	13-168181
15	SCREW, (M6 x 16)	10-8248324
16	GROMMET (Handle)	25-8518506
16	GROMMET (Remote Control)	25-8518504
17	SWITCH (Power Trim)	87-851883
18	BOLT (Power Trim)	10-8230427
19	GROMMET (Power Trim)	25-953871
20	GROMMET (Power Trim)	25-8518507
21	BOLT (Manual Tilt)	10-168288
22	GROMMET (Manual Tilt)	25-16226
23	BOLT	10-16830
24	WASHER	12-161404
25	BOLT (Handle)	10-162231
26	SPACER	23-853715007
27	WASHER	12-953922
28	WAVE WASHER	13-16221
29	COVER HOOK	8M0146267
30	BOLT	10-8230427
31	LOCKWASHER, (M6)	13-400256
32	WASHER	12-953921
33	HOOK LEVER	162184
34	SEAL	26-16219
35	BUSHING	23-16220
36	CLAMP (Power Trim)	54-8M0130961
37	SCREW (Power Trim)	10-879194247	10-823042064
38	LANYARD SWITCH (Handle)	87-804051A1
39	LANYARD (Handle)	823054
40	GROMMET	25-8518505
41	MAIN SWITCH (Electric)	87-804052A1
42	KEY (Electric) Comment:	802989,301,301	804053 (#301)
42	KEY (Electric) Comment:	8029891,302,302
42	KEY (Electric) Comment:	8029892,303,303
43	NEUTRAL SWITCH (Electric)	87-8M0127937
44	WASHER (Electric)	12-9539211
45	CLAMP (Handle)	54-8M0130961
-	STARTER MOTOR KIT	8M0188346

Bottom Cowl, 0N134079 and up

Below is the parts list for Mercury 50MH Bottom Cowl, 0N134079 and up:

Position No.	Part Name	OEM Number	Supersedes
1	BOTTOM COWL	100-8M0143843
2	MOUNT, Rubber	23-8537437
3	GROMMET	25-16823
4	GROMMET (Manual)	25-162263
5	GROMMET (Non-Oil Injection)	25-16226
6	PILOT LAMP (Oil Injection)	804057
7	GROMMET	25-16226
8	GROMMET	25-8518502
9	GROMMET	25-8518503
10	GROMMET	25-162284
11	PLUG	19-855549
12	BRACKET Comment: Clutch Cable	8M0056387	8M0085709 Clutch Cable
13	SCREW	10-823042075	10-851866 5
14	CLAMP Comment: Power Trim Switch	8M0085710
15	SCREW, (M6 x 16)	10-8248324
16	GROMMET (Handle)	25-8518506
16	GROMMET (Remote Control)	25-8518504
17	SWITCH, Power Trim	87-8M0057108
18	BOLT (Power Trim)	10-162234
19	GROMMET (Power Trim)	25-953871
20	O-RING (Power Trim)	25-898101145	27-8M0085707
21	BRACKET (Power Trim)	8M0057109
22	GROMMET (Manual Tilt)	25-16226
23	BOLT	10-16830
24	WASHER	12-161404
25	GROMMET (Power Trim)	25-898101088	25-8M0085706
26	SPACER	23-853715007
27	WASHER	12-953922
28	WAVE WASHER	13-16221
29	COVER HOOK	8M0146267
30	BOLT	10-8230427
31	LOCKWASHER, (M6)	13-400256
32	WASHER	12-953921
33	HOOK LEVER	162184
34	SEAL	26-16219
35	BUSHING	23-16220
36	CLAMP (Power Trim)	54-8M0130961
37	SCREW (Power Trim)	10-879194247	10-823042064
38	LANYARD SWITCH (Handle)	87-804051A1
39	LANYARD (Handle)	823054
40	GROMMET	25-8518505
41	MAIN SWITCH (Electric)	87-804052A1
42	KEY (Electric) Comment:	802989,301,301	804053 (#301)
42	KEY (Electric) Comment:	8029891,302,302
42	KEY (Electric) Comment:	8029892,303,303
43	NEUTRAL SWITCH (Electric)	87-8M0127937
44	WASHER (Electric)	12-9539211
45	BOLT, (M6 x 12)	10-8230427
46	NIPPLE	22-8M0057111
-	STARTER MOTOR KIT	8M0188346

Carburetor

Below is the parts list for Mercury 50MH Carburetor:

Position No.	Part Name	OEM Number	Supersedes
1	CARBURETOR (Upper) Comment: (40)	3303-853720A10	3303-853720A 2 (40)
1	CARBURETOR (Upper) Comment: (40 Lightning XR/50)	3303-853720A09	3303-853720A 5 (40 Lightning XR/50)
2	CARBURETOR (Center) Comment: (40)	3303-853720A11	3303-853720A 3 (40)
2	CARBURETOR (Center) Comment: (40 Lightning XR/50)	3303-853720A6
3	CARBURETOR (Lower) Comment: (40)	3303-853720A13	3303-853720A 4 (40)
3	CARBURETOR (Lower) Comment: (40 Lightning XR/50)	3303-853720T12	3303-853720A 7 (40 Lightning XR/50)
4	JET, Main Comment: (40)	122,162503
4	JET, Main (Upper/Center) Comment: (40 Lightning XR/50)	132,803883
4	JET, Main (Lower) Comment: (40 Lightning XR/50)	135,162504
5	JET, Pilot Comment: (40)	66,162513
5	JET, Pilot Comment: (40 Lightning XR/50)	80,803689	16251 4 (40 Lightning XR/50)
6	PLUG	19-855566
7	FLOAT NEEDLE	162545
8	PIN	17-162561
9	FLOAT	162532
10	SCREW	10-8536981
11	SCREW (Upper Carburetor)	10-8M0054702
12	SPRING, (11 mm) (Upper Carburetor)	24-162641
13	SCREW, Idle Adjusting	10-8129355
14	SPRING, (11 mm)	24-162641
15	FLOAT BOWL (Upper/Center Carburetor)	162583
15	FLOAT BOWL (Lower Carburetor)	162584
16	GASKET	27-855567
17	SCREW	10-162603
18	SCREW, Drain	10-8M0054703	10-16261 3
19	GASKET	27-8M0224378
20	MAIN NOZZLE Comment: (40)	8126502
20	MAIN NOZZLE Comment: (40 Lightning XR/50)	812650018
21	COVER, Carburetor	8555401
22	GASKET	27-8555412
23	SCREW	10-809571003	10-855542 1
24	COVER (Lower Carburetor)	855568	803693
25	SCREW (Lower Carburetor)	10-8M0062252
26	GASKET (Lower Carburetor)	27-855569
27	CHECK VALVE (Lower Carburetor)	21-851812
28	SCREW (Lower Carburetor)	10-851813
29	NUT (Lower Carburetor)	11-851814
30	DIAPHRAGM (Lower Carburetor)	8537312
31	GASKET (Lower Carburetor)	27-8555691
32	HOUSING, Pump (Lower Carburetor)	8537291
33	GROMMET	25-8M0065583	25-895112001
-	REPAIR KIT, Carburetor	853780A2

Crankshaft, Piston and Connecting Rods

Below is the parts list for Mercury 50MH Crankshaft, Piston and Connecting Rods:

Position No.	Part Name	OEM Number	Supersedes
1	CRANKSHAFT ASSEMBLY	400-8M0046560	474-9614T02
2	BEARING, Ball	30-16049T02
3	GEAR, Drive	43-855552
4	C CLIP	53-853714	53-803676
5	PIN, Piston	41-880810
6	CONNECTING ROD	629-880855
7	BEARING, Needle	31-880856
8	WASHER	12-880857
-	PISTON ASSEMBLY Comment: (Standard), services one piston	700-8M0082176
-	PISTON ASSEMBLY Comment: (.5 Oversize), services one piston	700-8M0082177
9	PISTON Comment: (Standard)	779-9615T02
9	PISTON Comment: (.5 Oversize)	96162
10	RING SET, Piston Comment: (Standard) Services engine	39-16054A5
10	RING SET, Piston Comment: (Standard) Services one piston	39-8M0080349
10	RING SET, Piston Comment: (.5 Oversize) Services engine	39-16055A5
10	RING SET, Piston Comment: (.5 Oversize) Services one piston	39-8M0080348
11	PIN, Piston	41-803680003
12	CLIP	53-160571
13	THRUST RING	853712
14	KEY	28-160531
15	BEARING, Main (Upper)	31-855553
16	SEAL, Oil	26-803879
17	O-RING	25-855554004	25-855554
18	BEARING, Needle	31-8130483
-	POWERHEAD ASSEMBLY Comment: (40)	8M0146290
-	POWERHEAD ASSEMBLY Comment: (40 Lightning XR/50)	8M0147022
-	GASKET SET, Powerhead	27-8M0081614	27-8M0062092, 27-8M0047034, 27-812937A03, 27-812937A02, 27-812937A98

Cylinder Block

Below is the parts list for Mercury 50MH Cylinder Block:

Position No.	Part Name	OEM Number	Supersedes
1	CYLINDER BLOCK ASSEMBLY Comment: (40)	878-8M0082197	878-815013A11 (40)
1	CYLINDER BLOCK Comment: (40 Lightning XR/50)	878-8M0082198	878-815013A 4 (40 Lightning XR/50)
2	BOLT	10-166951
3	WASHER	12-4002217
4	PIN, Dowel	17-16119
5	PIN, Dowel	17-9521812
6	BLEED VALVE	21-853696
7	CONNECTOR	22-8M0064617	22-812960, 22-95301
8	TUBING, (220 mm)	32-95223009
9	HOSE, Rubber (330 mm)	32-898101227
10	CLIP	54-95332002
11	CYLINDER HEAD	979-96305
-	WELCH PLUG	19-898101264
12	GASKET	27-8M0062091	27-812939 10
13	COVER	8M0231776
14	GASKET	27-8M0115016	27-812939 11
15	BOLT	10-8M0106717	10-8M0068940, 10-16698 2
16	WASHER	12-8M0106725	12-8M0106719, 12-8M0065568, 12-16238 1
17	SCREW	10-898101953
18	TUBING, (160 mm)	32-812940010
19	THERMOSTAT	8537041
20	COVER	8537051
21	GASKET	27-8537024
22	BOLT, Stainless Steel	10-823042
23	PLUG	19-855549
24	ANODE	97-823913Q	823913, 95271
25	BOLT, (M6 x 20)	10-167051
26	LIFTING EYE	8M0137792
27	BOLT	10-168304
28	WASHER	12-4002217
29	END CAP, Lower	1100-8537131
30	O-RING	25-8537091
31	SEAL, Oil	26-8M0056308
32	SEAL, Oil	26-8537078
33	BOLT, (M6 x 20)	10-167051
34	COVER, Exhaust	8M0081401	853706 1
35	COVER, Exhaust	8537062
36	GASKET	27-812939020	27-812939017, 27-812939 5
37	BOLT	10-825009026	10-810755008
38	CHECK VALVE	21-42657A3
39	NIPPLE	22-898101961	22-812960 3
40	HOSE, (260 mm)	32-851848005
41	GROMMET (Electric)	25-855551
42	SPARK PLUG Comment: (40)(NGK-B7HS-10)	33-8M0181925
42	SPARK PLUG, (NGK# BR7HS-10) Comment: (40)(NGK-BR7HS-10)	33-8M0181925
42	PLUG Comment: (40 Lightning XR/50)(NGK-B8HS-10)	33-8M0181926
42	SPARK PLUG Comment: (40 Lightning XR/50)(NGK-BR8HS-10)	33-8M0181926
43	CLAMP	54-8M0130961
44	SCREW	10-879194247	10-823042064
45	COVER PLATE (Manual)	803992
46	GASKET (Manual)	27-8M0081613	27-855569004, 27-855569 2
47	SCREW (Manual)	10-162233
48	PIN, Dowel	17-16119
49	WASHER	12-16826
-	POWERHEAD ASSEMBLY Comment: (40)	8M0146290
-	POWERHEAD ASSEMBLY Comment: (40 Lightning XR/50)	8M0147022
-	GASKET SET, Powerhead	27-8M0081614	27-8M0062092, 27-8M0047034, 27-812937A03, 27-812937A02, 27-812937A98
-	STARTER MOTOR KIT	8M0188346

Driveshaft Housing

Below is the parts list for Mercury 50MH Driveshaft Housing:

Position No.	Part Name	OEM Number	Supersedes
1	HOUSING, Driveshaft, Long Comment: Short	1500-8M0077334	1599-812943 5 Short
1	HOUSING, Driveshaft, Short Comment: Long/X-Long	1599-8M0090843
2	BOLT	10-8M0054995	10-16126 4
3	WASHER	12-16192
4	SPLASH PLATE	851856T01	851856 1
5	GROMMET	25-851850
6	SCREW	10-855544030
7	GROMMET	25-8518501
8	NUT	11-815057
9	SEAL, Rubber	8M0147035
10	GASKET	27-812939022	27-812939 6
11	PLATE, Exhaust	851852
12	GASKET	27-812939024	27-812939021, 27-812939016, 27-812939 7
13	SEAL, Rubber	8518511
14	BOLT, Stainless Steel	10-823042
15	PIN, Dowel	17-16119
16	EXTENSION, Exhaust	851853
17	SCREW	10-855544031
18	GASKET	27-812939019	27-812939 8
19	TUBE, Exhaust	851854
20	SCREW	10-823042074
21	GASKET	27-812939023	27-812939 9
22	SEAL, X-Long	26-8537074
23	HOUSING, Extension, X-Long	853783003
24	BOLT, X-Long	10-879194274	10-823042 12
25	RETAINER, X-Long	853794
26	STOPPER, X-Long	8107532
27	BOLT, X-Long	10-8230427
-	GASKET SET, Powerhead	27-8M0081614	27-8M0062092, 27-8M0047034, 27-812937A03, 27-812937A02, 27-812937A98
-	GASKET SET, Lower Unit	27-851887A08	27-851887A07, 27-851887A98
-	HOUSING KIT, XL Extension	8M0127367

Electrical Components

Below is the parts list for Mercury 50MH Electrical Components:

Position No.	Part Name	OEM Number	Supersedes
1	CD UNIT	16061005
2	O-RING	25-8M0127927
3	COIL, Ignition	16064006
4	BOOT, With Resistance	85-855543
5	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
6	BOLT, (M6 x 20)	10-167051
7	GASKET	27-851834
8	BRACKET, Electrical	8M0123143
9	COVER	851835
10	SCREW	10-8555442
11	MOUNT, Rubber	23-8537437
12	GROMMET	25-8518153
13	SPACER	23-853715007
14	BOLT	10-162232
15	WASHER	12-161404
16	FUSE	88-8538141
17	BOLT	10-953965
18	CLAMP (Electric)	54-8M0130961
19	BOLT (Electric)	10-95396
20	WIRE, Ground	84-853740014
-	GASKET SET, Powerhead	27-8M0081614	27-8M0062092, 27-8M0047034, 27-812937A03, 27-812937A02, 27-812937A98

Electrical Components(Electric Models)

Below is the parts list for Mercury 50MH Electrical Components(Electric Models):

Position No.	Part Name	OEM Number	Supersedes
1	RECTIFIER	853811003	853811 2
2	SCREW	10-8555443
3	SOLENOID ASSEMBLY, Choke	853829A1
4	PLUNGER	853830
5	SCREW	10-162454
6	BRACKET	8M0098603	851836 3
7	SCREW	10-162233
8	HOOK	8555615
9	PIN, Dowel	17-952189
10	HARNESS ASSEMBLY	84-85374011
11	WIRE, Fuse	84-8537406
12	SOLENOID SWITCH	87-851839
13	SOLENOID SWITCH	87-8518391
14	CABLE	84-8537407
15	CABLE, Black	84-8537408
16	CABLE	84-8537409
17	CABLE	84-85374010
18	CAP	85-8538161
19	BOLT, (M6 x 12)	10-8230427
20	BUZZER ASSEMBLY, Overheat Comment: (40 Lightning XR/50)	802808A1
21	SENSOR ASSEMBLY, Overheat Comment: (40 Lightning XR/50)	802809A1
22	STOPPER Comment: (40 Lightning XR/50)	8107532
23	BOLT Comment: (40 Lightning XR/50)	10-167051
24	HARNESS ASSEMBLY (Handle)	84-85374012
-	STARTER MOTOR KIT	8M0188346

Flywheel

Below is the parts list for Mercury 50MH Flywheel:

Position No.	Part Name	OEM Number	Supersedes
1	FLYWHEEL	262-8150242
2	PLATE ASSEMBLY, Coil	8M0109038
3	TRIGGER	160663
4	PULSE HOLDER	8537381
5	STATOR	160582
6	SCREW	10-8230318
7	COIL, Charger (Set)	160742
8	SCREW	10-8230318
9	WIRE GUIDE	8537382
10	SCREW	10-8M0135299
11	CLAMP	54-851817
12	SCREW	10-8230314
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	TIMING PLATE	8537101
15	GUIDE PLATE	853711
16	BOLT	10-166954
17	LOCKWASHER	13-16818
18	SHIM Comment: (.15)	15-8537951
18	SHIM Comment: (.20)	15-8537952
18	SHIM Comment: (.25)	15-8537953
19	SCREW	10-8555441
20	NUT	11-851832
21	WASHER	12-8539911

Fuel Line

Below is the parts list for Mercury 50MH Fuel Line:

Position No.	Part Name	OEM Number	Supersedes
1	FILTER ASSEMBLY, Fuel Comment: SN# 0N072166 & Below	35-8M0088825	35-853733T03, 35-853733T02, 35-853733A 2, 35-898101T68 SN# 0N072166 & Below
1	FILTER ASSEMBLY, Fuel Comment: SN# 0N072167 & Up	35-8M0088825	35-853733T03, 35-853733T02, 35-853733A 2, 35-898101T68 SN# 0N072167 & Up
2	CUP Comment: SN# 0N072166 & Below	8537351
2	CUP Comment: SN# 0N072167 & Up	853735002
3	O-RING Comment: SN# 0N072166 & Below	25-851815
3	O-RING Comment: SN# 0N072167 & Up	25-851815006
4	FILTER Comment: SN# 0N072166 & Below	35-8537331
4	FILTER Comment: SN# 0N072167 & Up	35-853733002
5	O-RING Comment: SN# 0N072166 & Below	25-8518151
6	NUT	11-400213
7	WASHER	12-16192
8	CHECK VALVE (Oil Injection)	21-8518121
9	TUBING, (215 mm) (Oil Injection)	32-95394013
10	TUBING, (300 mm) (Oil Injection)	32-851848011
11	TUBING, (200 mm) (Oil Injection)	32-95394014
12	TUBING, (80 mm) (Oil Injection)	32-95394015
13	CLIP, Stainless Steel (Oil Injection)	54-95395
14	CONNECTOR, Fuel	22-853736
15	NUT	11-17480
16	CLIP, Stainless Steel (Non-Oil Injection)	54-95395
17	TUBING, (350 mm) (Non-Oil Injection)	32-851848014
18	TUBING, (530 mm) (Non-Oil Injection)	32-95394016
19	GASKET	27-803663017
-	GASKET SET, Powerhead	27-8M0081614	27-8M0062092, 27-8M0047034, 27-812937A03, 27-812937A02, 27-812937A98

Fuel Tank(Plastic- 6.6 Gallon)

Below is the parts list for Mercury 50MH Fuel Tank(Plastic- 6.6 Gallon):

Position No.	Part Name	OEM Number	Supersedes
1	TANK ASSEMBLY, Fuel (Threaded Connection)	1259-859063A1
1	TANK ASSEMBLY, Fuel (Quick Connect)	1259-859063A2
2	CAP ASSEMBLY, Fuel-Manual Vent	36-816976Q1
3	GASKET, Fuel Cap	27-8169771
4	PICK UP ASSEMBLY, Fuel (Threaded Connection)	859059A2
5	PICK UP ASSEMBLY, Fuel (Quick Connect)	8M0084089	859066A 2
6	FLOAT	859056
7	SCREW, (M5 x 16)	10-40056107
8	WASHER	12-859080
9	GASKET	27-859072
10	HOSE ASSEMBLY, Fuel Comment: (2008 and Below)	32-858610A37	32-858610A16, 32-16789A42 (2008 and Below)
10	HOSE ASSEMBLY, Fuel Comment: (2009 and Up)	32-8M0172378
11	BULB ASSEMBLY, Primer	13330Q07
12	CHECK VALVE ASSEMBLY	21-13331A3
13	CHECK VALVE ASSEMBLY	21-13331A4
14	NOT SOLD SEPARATE, Clamp	NSS
15	NOT SOLD SEPARATE, Clamp	NSS
16	CONNECTOR, (.250-18)	22-89771Q2
17	CONNECTOR, Fuel	22-8M0120628
18	CLAMP	54-853798

Gear Housing, Driveshaft, Serial 0N116270 and Below

Below is the parts list for Mercury 50MH Gear Housing, Driveshaft, Serial 0N116270 and Below:

Position No.	Part Name	OEM Number	Supersedes
-	GEAR HOUSING ASSEMBLY, Complete Comment: Short	1668-8M0046098	1668-825132A24, 1668-825132A14 Short
-	GEAR HOUSING ASSEMBLY, Complete Comment: Long	1668-825132T39	1668-825132T25, 1668-825132A25, 1668-825132A12 Long
-	GEAR HOUSING ASSEMBLY, Complete Comment: X-Long	1600-8M0121551
1	GEAR HOUSING ASSEMBLY, Basic Comment: Short and Long	1600-8M0127360
1	GEAR HOUSING ASSEMBLY, Basic Comment: X-Long	1600-8M0127361
2	BEARING, Needle	31-8130487
3	BOLT	10-879194274	10-823042 12
4	PLUG	22-8M0229353
5	GASKET	27-95220
6	STRAINER, Water, Set	853763003	853763 1
7	SCREW	10-8555444
8	NUT	11-85372216
9	STRAINER, Water	8537632
10	SCREW, (M6 x 16)	10-8248324
11	SCREW, Drain	22-953682
12	GASKET	27-95220011
13	DRIVESHAFT Comment: Short	45-161366
13	DRIVESHAFT Comment: Long	45-161365
13	DRIVESHAFT Comment: X-Long	45-16136007
14	BEARING, Ball	30-161283
15	SPRING	24-953836
16	GEAR, Pinion	43-16138004
17	NUT	11-85372217
18	SHIM Comment: .1	15-8M0224379
18	SHIM Comment: .3	15-851855003
18	SHIM Comment: .5	15-851855005
18	SHIM Comment: .15	15-851855015
19	IMPELLER	47-161542
20	KEY	28-161551
21	HOUSING, Upper Water Pump	46-161563
22	INSERT	161573
23	GASKET	27-16158017
24	GUIDE PLATE	851857
25	GASKET	27-8M0155405
26	HOUSING, Water Pump Lower	46-8260532
27	PIN, Dowel	17-952188
28	SEAL, Oil	26-8537079
29	SHIM	15-8537954
30	O-RING	25-16131
31	BOLT	10-879194276	10-823042 14
32	SEAL	26-161682
33	TUBE, Water Comment: Short	32-161705
33	TUBE, Water Comment: Long	32-161704
33	TUBE, Water Comment: X-Long	32-16170007
34	SEAL	26-161712
35	COLLAR	23-9528615
36	SEAL	26-8537074
37	CAM	8M0172382
38	PIN	17-16179
39	CAM ROD Comment: Short	161865
39	CAM ROD Comment: Long	161863
39	CAM ROD Comment: X-Long	16186006
40	BUSHING	23-161762
41	O-RING	25-161772
42	O-RING	25-161782
43	STOPPER	8107532
44	BOLT	10-8230427
45	CONNECTOR	851859
46	PIN, Dowel	17-952189
-	GASKET SET, Lower Unit	27-851887A08	27-851887A07, 27-851887A98
-	REPAIR KIT, Water Pump	853792A10	853792A 3
-	HOUSING KIT, XL Extension	8M0127367

Gear Housing, Driveshaft, Serial 0N116271 and Up

Below is the parts list for Mercury 50MH Gear Housing, Driveshaft, Serial 0N116271 and Up:

Position No.	Part Name	OEM Number	Supersedes
-	GEAR HOUSING ASSEMBLY, Complete Comment: Short	1668-8M0046098	1668-825132A24, 1668-825132A14 Short
-	GEAR HOUSING ASSEMBLY, Complete Comment: Long	1668-825132T39	1668-825132T25, 1668-825132A25, 1668-825132A12 Long
-	GEAR HOUSING ASSEMBLY, Complete Comment: X-Long	1600-8M0121551
1	GEAR HOUSING ASSEMBLY, Basic Comment: Short and Long	1600-8M0127360
1	GEAR HOUSING ASSEMBLY, Basic Comment: X-Long	1600-8M0127361
2	BEARING, Needle	31-8130487
3	BOLT	10-879194274	10-823042 12
4	PLUG	22-8M0229353
5	GASKET	27-95220
6	STRAINER, Water, Set	853763003	853763 1
7	SCREW	10-8555444
8	NUT	11-85372216
9	STRAINER, Water	8537632
10	SCREW, (M6 x 16)	10-8248324
11	SCREW, Drain	22-953682
12	GASKET	27-95220011
13	DRIVESHAFT Comment: Short	45-161366
13	DRIVESHAFT Comment: Long	45-161365
13	DRIVESHAFT Comment: X-Long	45-16136007
14	BEARING, Ball	30-161283
15	SPRING	24-953836
16	GEAR, Pinion	43-16138004
17	NUT	11-85372217
18	SHIM Comment: .1	15-8M0224379
18	SHIM Comment: .3	15-851855003
18	SHIM Comment: .5	15-851855005
18	SHIM Comment: .15	15-851855015
19	IMPELLER	47-161542
20	KEY	28-161551
21	HOUSING, Upper Water Pump	46-16156004
22	INSERT, Water Pump	16157005
23	GASKET	27-16158011
24	GUIDE PLATE	851857
25	GASKET	27-8M0155405
26	HOUSING, Water Pump Lower	46-8260532
27	PIN, Dowel	17-952188
28	SEAL, Oil	26-8537079
29	SHIM	15-8537954
30	O-RING	25-16131
31	BOLT	10-879194276	10-823042 14
32	SEAL	26-161682
33	TUBE, Water Comment: Short	32-161705
33	TUBE, Water Comment: Long	32-161704
33	TUBE, Water Comment: X-Long	32-16170007
34	SEAL	26-161712
35	COLLAR	23-9528615
36	SEAL	26-8537074
37	CAM	8M0172382
38	PIN	17-16179
39	CAM ROD Comment: Short	161865
39	CAM ROD Comment: Long	161863
39	CAM ROD Comment: X-Long	16186006
40	BUSHING	23-161762
41	O-RING	25-161772
42	O-RING	25-161782
43	STOPPER	8107532
44	BOLT	10-8230427
45	CONNECTOR	851859
46	PIN, Dowel	17-952189
-	GASKET SET, Lower Unit	27-8M0125990
-	REPAIR KIT, Water Pump	46-8M0046094
-	HOUSING KIT, XL Extension	8M0127367

Gear Housing, Propeller Shaft, Serial 0N116270 and Below

Below is the parts list for Mercury 50MH Gear Housing, Propeller Shaft, Serial 0N116270 and Below:

Position No.	Part Name	OEM Number	Supersedes
-	GEAR HOUSING ASSEMBLY, Complete Comment: (Short)	1668-8M0046098	1668-825132A24, 1668-825132A14 (Short)
-	GEAR HOUSING ASSEMBLY, Complete Comment: (Long)	1668-825132T39	1668-825132T25, 1668-825132A25, 1668-825132A12 (Long)
-	GEAR HOUSING ASSEMBLY, Complete Comment: (X-Long)	1600-8M0121551
1	GEAR HOUSING ASSEMBLY, Basic Comment: (Short and Long)	1600-8M0127360
1	GEAR HOUSING ASSEMBLY, Basic Comment: (X-Long)	1600-8M0127361
47	BEARING, Needle	31-8130488
48	GEAR, Forward	43-8129442
49	SHIM Comment: (.3)	15-851860003
49	SHIM Comment: (.15)	15-851860015
49	SHIM Comment: (.1)	15-851860001
50	PROPELLER SHAFT	44-195132
51	CLUTCH	52-812946003	52-812946 2
52	PIN, Clutch	17-161502
53	SPRING	24-8126456
54	SPRING	24-176673
55	HOLDER, Spring	8537641
56	BALL, Steel	30-161322
57	FOLLOWER, Cam	161521
58	CARRIER ASSEMBLY, Bearing	8M0119562
59	BEARING, Needle	31-8130487
60	SEAL, Oil	26-161302
61	BEARING, Ball	30-161323
62	O-RING	25-161312
63	GEAR, Reverse	43-8129453
64	WASHER	12-161408
65	BOLT	10-8M0086977	10-16263010
66	WASHER, Stainless Steel	12-16826
67	THRUST HUB	161453
68	HUB	879150151
69	PROPELLER, (10)	48-802628003	48-802628 1
69	PROPELLER, (11)	48-802628002	48-802628
69	PROPELLER, (13.5)	48-802621004	48-802621 1
69	PROPELLER, (14.5)	48-802621003	48-802621
69	PROPELLER, (12)	48-802621T08
69	PROPELLER, (12.5)	48-802621005	48-802621 2
-	RUBBER HUB	8M0075316
70	THRUST HUB (Rear)	851861
71	WASHER	12-161409
72	PROP NUT	11-161472
73	COTTER PIN	18-8150265
74	TRIM TAB	853762	853762 1
75	BOLT, (M6 x 20)	10-167051
-	GASKET SET, Lower Unit	27-851887A08	27-851887A07, 27-851887A98

Gear Housing, Propeller Shaft, Serial 0N116271 and Up

Below is the parts list for Mercury 50MH Gear Housing, Propeller Shaft, Serial 0N116271 and Up:

Position No.	Part Name	OEM Number	Supersedes
-	GEAR HOUSING ASSEMBLY, Complete Comment: (Short)	1668-8M0046098	1668-825132A24, 1668-825132A14 (Short)
-	GEAR HOUSING ASSEMBLY, Complete Comment: (Long)	1668-825132T39	1668-825132T25, 1668-825132A25, 1668-825132A12 (Long)
-	GEAR HOUSING ASSEMBLY, Complete Comment: (X-Long)	1600-8M0121551
1	GEAR HOUSING ASSEMBLY, Basic Comment: (Short and Long)	1600-8M0127360
1	GEAR HOUSING ASSEMBLY, Basic Comment: (X-Long)	1600-8M0127361
47	BEARING, Needle	31-8130488
48	GEAR, Forward	43-8129442
49	SHIM Comment: (.3)	15-851860003
49	SHIM Comment: (.15)	15-851860015
49	SHIM Comment: (.1)	15-851860001
50	PROPELLER SHAFT	44-195132
51	CLUTCH	52-812946003	52-812946 2
52	PIN, Clutch	17-161502
53	SPRING	24-8126456
54	SPRING	24-176673
55	HOLDER, Spring	8537641
56	BALL, Steel	30-161322
57	FOLLOWER, Cam	161521
58	CARRIER ASSEMBLY, Bearing	8M0119562
59	BEARING, Needle	31-8130487
60	SEAL, Oil	26-161302
61	BEARING, Ball	30-161323
62	O-RING	25-161312
63	GEAR, Reverse	43-8129453
64	WASHER	12-161408
65	BOLT	10-8M0086977	10-16263010
66	WASHER, Stainless Steel	12-16826
67	THRUST HUB	161453
68	HUB	879150151
69	PROPELLER, (10)	48-802628003	48-802628 1
69	PROPELLER, (11)	48-802628002	48-802628
69	PROPELLER, (13.5)	48-802621004	48-802621 1
69	PROPELLER, (14.5)	48-802621003	48-802621
69	PROPELLER, (12)	48-802621T08
69	PROPELLER, (12.5)	48-802621005	48-802621 2
-	RUBBER HUB	8M0075316
70	THRUST HUB (Rear)	851861
71	WASHER	12-161409
72	PROP NUT	11-161472
73	COTTER PIN	18-8150265
74	TRIM TAB	853762	853762 1
75	BOLT, (M6 x 20)	10-167051
-	GASKET SET, Lower Unit	27-8M0125990

Inlet Manifold and Reed Block

Below is the parts list for Mercury 50MH Inlet Manifold and Reed Block:

Position No.	Part Name	OEM Number	Supersedes
1	MANIFOLD ASSEMBLY, Inlet Comment: (40)	853717A2
1	MANIFOLD ASSEMBLY, Intake Comment: (40 Lightning XR/50)	802810A1
2	GASKET	27-8M0047033	27-855555001, 27-855555
3	BOLT	10-823042
4	REED BLOCK Comment: (40)	8537191
4	REED BLOCK Comment: (40 Lightning XR/50)	8537192
5	TUBING, (65 mm)	32-95394011
6	TUBING, (155 mm)	32-95394012
7	CLIP, Stainless Steel	54-95395
8	BOLT	10-855809003	10-16329002
9	WASHER	12-809931044	12-809931042, 13-815064, 12-95222
10	LOCKWASHER	13-16818
11	CLAMP	54-8M0130961
12	BOLT, Stainless Steel	10-8M0204707
13	SCREW	10-8230317
-	POWERHEAD ASSEMBLY Comment: (40)	8M0146290
-	POWERHEAD ASSEMBLY Comment: (40 Lightning XR/50)	8M0147022
-	GASKET SET, Powerhead	27-8M0081614	27-8M0062092, 27-8M0047034, 27-812937A03, 27-812937A02, 27-812937A98

Manual Tilt, Serial Number 0N096057 and Below

Below is the parts list for Mercury 50MH Manual Tilt, Serial Number 0N096057 and Below:

Position No.	Part Name	OEM Number	Supersedes
1	GRIP	8M0183798
2	BUTTON	8M0051399	853776
3	SHAFT/BOLT, Reverse Lock Lever	10-803790001	804049
4	WASHER, Stainless Steel	12-16826
5	LEVER, Tilt Stopper	804048
6	WASHER	12-953921
7	SPRING	24-8040246
8	LINK	804050
9	SHAFT, Reverse Lock	804046003
10	E RING	53-160572
11	SPRING	24-953832
12	STOP	853774
13	BRACKET	8251131
14	STOPPER, Tilt	8M0230676
15	PIN, Spring	17-9521813
16	SET PLATE	879194006	16210 1
17	BOLT	10-8M0098607
18	SPRING Comment: (Short)	24-8040244
18	SPRING Comment: (Long)(X-Long)	24-8040245
19	ROD, Reverse Lock	804047
20	LOCK, Reverse (Starboard)	804044
21	ARM, Reverse Lock	804045004	804045
22	LOCK, Reverse (Port)	8040441
23	COTTER PIN	18-8150261
24	SHAFT	804049001
25	SPRING	24-824024012	24-804024009
26	SPRING	24-824024011	24-804024010

Manual Tilt, Serial Number 0N096058 and Up

Below is the parts list for Mercury 50MH Manual Tilt, Serial Number 0N096058 and Up:

Position No.	Part Name	OEM Number	Supersedes
1	GRIP	8M0183798
2	BUTTON	8M0051399	853776
3	BOLT, Shoulder	10-803790001	804049
4	WASHER, Stainless Steel	12-16826
5	LEVER, Tilt Stopper	879288263
6	WASHER	12-953921
7	WASHER	12-953925
8	BUSHING	23-898103107
9	SPRING	24-8040246
10	LINK	804050
11	SHAFT, Reverse Lock	804046003
12	E RING	53-160572
13	SPRING	24-953832
14	STOP	853774
15	BRACKET	8251131
16	STOPPER, Tilt	8M0230676
17	SET PLATE	879194006	16210 1
18	BOLT	10-8M0098607
19	SPRING Comment: (Short)	24-8040244
19	SPRING Comment: (Long)(X-Long)	24-8040245
20	ROD, Reverse Lock	804047
21	LOCK, Reverse (Starboard)	804044
22	ARM, Reverse Lock	804045004	804045
23	LOCK, Reverse (Port)	8040441
24	COTTER PIN	18-8150261
25	SHAFT	804049001
26	SPRING	24-824024012	24-804024009
27	SPRING	24-824024011	24-804024010

Oil Injection Components

Below is the parts list for Mercury 50MH Oil Injection Components:

Position No.	Part Name	OEM Number	Supersedes
1	PUMP ASSEMBLY, Oil	851840A1
2	O-RING	25-8518154
3	BOLT	10-851841
4	WASHER	12-953927
5	BOLT	10-8M0098600
6	LOCKWASHER, (M6)	13-400256
7	GEAR, Driven	43-8555521
8	BUSHING	23-851858
9	SNAP, Link Rod	163332
10	LINK ROD	8M0079379	855561 4
11	NUT	11-16081
12	CAP	853745
13	TANK, Oil	1270-851842
14	GROMMET	25-8518153
15	SPACER	23-853715007
16	MOUNT, Rubber	23-8537437
17	BOLT	10-162232
18	WASHER	12-161404
19	CAP	36-851843
20	GASKET	27-851844
21	HOOK	851845	851845002
22	CHECK VALVE	21-8518122
23	SENSOR	851846
24	FILTER ASSEMBLY, Oil	35-851847A1
25	CUP	8537351
26	O-RING	25-851815
27	FILTER	35-8518471
28	O-RING	25-8518151
29	NUT	11-400213
30	WASHER	12-16192
31	TUBING, (400 mm), To Oil Pump	32-851848031
32	TUBING, (700 mm)	32-851848030
33	CLIP	54-8M0129429
34	TUBING, (230 mm)	32-8518482
35	CLIP	54-803525005	54-851849
36	PLATE	898101258

Power Trim

Below is the parts list for Mercury 50MH Power Trim:

Position No.	Part Name	OEM Number	Supersedes
1	POWER TRIM ASSEMBLY	8M0219173
2	BUSHING	23-16176009
3	BUSHING	23-16176010
4	BUSHING	23-161765
5	BOLT	10-8230427
6	GROUND WIRE	84-898101089	84-803779, 84-853740 1
7	BUSHING	23-16176011
8	WASHER	12-853822002
9	C RING	53-804027003
10	CLAMP	54-953951
11	CLAMP	54-17169
12	SCREW	10-8555445
13	PIN	17-8M0091499
14	PIN, Cylinder	17-8M0091498	17-851874004, 17-851874002
15	BOLT	10-879194248	10-823042038
16	WASHER	12-898101937	12-16238

Power Trim Components

Below is the parts list for Mercury 50MH Power Trim Components:

Position No.	Part Name	OEM Number
-	POWER TRIM ASSEMBLY	8M0219173
1	MOTOR	8M0234862
2	BRACKET	898101259
3	O-RING (Component of O-Ring Set)	25-16131014
4	SCREW	10-16078
5	O-RING	25-161315
6	SCREW	10-851866013
7	COUPLING	851877002
8	FILTER	35-851876
9	BOLT	10-8518663
10	BOLT	10-8518664
11	PUMP	827674002
12	O-RING	25-161314
13	JOINT, (Metal)	853768001
14	SCREW	10-851866014
15	TANK, Reservoir	8M0131044
16	CAP ASSEMBLY	896440A01
17	O-RING SET	25-16131A05
18	RELIEF VALVE ASSEMBLY	827672A05
19	NOT SOLD SEPARATE, O-Ring (Component of O-Ring Set)	NSS
20	VALVE ASSEMBLY	813442A04
21	WASHER, Sealing	26-898101245
22	MANUAL VALVE ASSEMBLY	813442A03
23	C RING	53-804027002

Recoil Starter

Below is the parts list for Mercury 50MH Recoil Starter:

Position No.	Part Name	OEM Number	Supersedes
1	STARTER ASSEMBLY, Recoil	8M0225922
2	BUSHING	23-8518583
3	SLIDING PLATE	804026
4	SPRING, Starter	24-804024
5	REEL	804022
6	WASHER	12-9539212
7	C RING	53-804027
8	SPRING, Return	24-8040242
9	RATCHET	804023
10	SPRING, Friction	24-8040241
11	SLIDING PLATE	8040261
12	FRICTION PLATE	804025
13	BOLT	10-162637
14	ROPE, Starter	50-804028
15	HANDLE, Starter	804029
16	GUIDE	8M0054758
17	BOLT	10-162637
18	STOPPER, Reel	804031
19	ARM, Stopper	804032
20	SPRING, Stopper	24-8040243
21	WASHER	12-9539213
22	COTTER PIN	18-81502611
23	WIRE	84-85374013
24	HOLDER, Cable	804033
25	SCREW	10-804034
26	SLEEVE	23-8113683
27	CAP, Starter Handle	853755002
28	LOCKWASHER, (M6)	13-400256
29	SCREW, (M6 x 25)	10-8M0204707
30	WASHER, Stainless Steel	12-16826
31	COLLAR, (9.3 mm)	23-8M0021168	23-95286 24
32	LOCK ARM, Starter	804036
33	PULLEY, Starter	8M0231222
34	BOLT	10-168307
35	LOCKWASHER	13-17025
36	SCREW, (M6 x 25)	10-8M0204707

Remote Control Components

Below is the parts list for Mercury 50MH Remote Control Components:

Position No.	Part Name	OEM Number	Supersedes
-	SINGLE REMOTE CONTROL	8M0223091
1	SCREW	10-8555446
2	SWITCH COVER	802995
3	SWITCH ASSEMBLY, Power Trim And Tilt	87-802994A1
4	NEUTRAL SWITCH	87-802997A1
5	SCREW	10-8555447
6	OVERHEAT BUZZER	802808A1
7	CABLE ASSEMBLY, Red (Red)	84-802998A1
8	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
9	SWITCH	87-802988A1
10	KEY Comment:	802989,301,301	804053 (#301)
10	KEY Comment:	8029891,302,302
10	KEY Comment:	8029892,303,303
11	COVER	802990
12	SAFETY SWITCH	87-802992A1
13	LANYARD	823054
14	HARNESS ASSEMBLY	84-802991A1
-	SINGLE REMOTE CONTROL	8M0223091
1	CAP	802977
2	PLUG	19-802978
3	GRIP	802974
4	LEVER, Control	802973
5	SCREW	10-823042067
6	NEUTRAL LOCK ARM	802975
7	SPRING	24-802976
8	SCREW	10-823042067
9	WASHER	12-8029651
10	DECAL	37-802987
11	SCREW, Adjusting	10-802986
12	WASHER	12-8029652
13	E RING	53-160572
14	COVER	802985
15	DETENT PLATE	802971
16	ROLLER	8029691
17	RETAINER	802972
18	SCREW	10-163341
19	BUSHING	23-8029633
20	THRUST PLATE	802968
21	GEAR, Drive	802967
22	BOLT	10-171741
23	NUT, Stainless Steel	11-16081
24	ROLLER	802969
25	ARM, Throttle	8M0135304
26	BUSHING	23-8029631
27	DRUM	802982
28	WAVE WASHER	13-8029661
29	SCREW	10-953861
30	BOLT	10-802979
31	WASHER	12-16192
32	REAR PANEL	802984
33	HOUSING, Rear	802980
34	SPRING	24-8029761
35	RETAINER	802983
36	ROLLER	8029692
37	SCREW	10-163341
38	BUSHING	23-8029632
39	FRICTION ARM, Throttle	802964
40	WAVE WASHER	13-802966
41	WASHER	12-802965
42	SHIFT GEAR	802962
43	BUSHING	23-802963
44	BOLT	10-95386
45	LEVER	8M0085508	802981
46	BUSHING	23-8029634

Service/Support Material

Below is the parts list for Mercury 50MH Service/Support Material:

Position No.	Part Name	OEM Number
-	PARTS MANUAL, 40/40 Lightning XR/50	90-802638006
-	OPERATION MANUAL, 40/50 2-Stroke	90-10262081
-	DECAL SET Comment: (Mercury 40/40 Lightning XR)	37-855973A06
-	DECAL SET Comment: (Mariner 40)	37-855975A03
-	DECAL SET Comment: (Mariner 40 Lightning XR)	37-888722A03
-	NOT SOLD SEPARATE (Decals not required-Military Only) Comment: (Mariner 50)	NSS
-	DECAL, Shift (F-N-R) Comment: (Mercury)	37-85926610
-	DECAL, Shift (F-N-R) Comment: (Mariner)	37-87819110

Shift Components

Below is the parts list for Mercury 50MH Shift Components:

Position No.	Part Name	OEM Number	Supersedes
1	SHIFT ROD	161864
2	LEVER, Shift Rod	161843
3	SHIFT ARM	851862
4	BUSHING	23-163361
5	WAVE WASHER	13-8537234
6	CLIP	54-851863
7	STOPPER	24-8M0138736
8	BOLT	10-8107551
9	CLAMP	8M0138737
10	SHIFT SHAFT	851865
11	WASHER	12-953925
12	CLIP	54-851863
13	SOCKET	8M0079131	853745003, 853745 2
14	WASHER	12-953925
15	COTTER PIN	18-8150262
16	LEVER, Shift (Handle)	804037
17	SEAL (Handle)	26-16219
18	WASHER, Stainless Steel	12-16826

Starter Motor

Below is the parts list for Mercury 50MH Starter Motor:

Position No.	Part Name	OEM Number	Supersedes
1	STARTER MOTOR ASSEMBLY	50-853805A3
2	PINION	8M0188338
3	WASHER	12-953926
4	HOLDER, Brush	8M0135544
5	SCREW	10-16821
6	BUSHING	23-8M0135546
7	O-RING	25-161784
8	BUSHING	23-8M0135545
9	WASHER, Stainless Steel	12-16826
10	LOCKWASHER, (M6)	13-400256
11	NUT	11-853722026
12	BOLT	10-162632
13	LOCKWASHER	13-898101181
14	WASHER	12-898101215
15	SOLENOID, Starter	89-853809T	89-853809
16	SCREW	10-162233
17	BRACKET	8518362
18	BOLT	10-162234
19	COVER	851838
20	SCREW	10-823042073	10-898101955
21	BRACKET	851836
22	BRACKET	8518361
23	SCREW	10-823042073	10-898101955
24	BOLT	10-8M0098607
25	SCREW, (M6 x 25)	10-8M0204707
26	WASHER	12-953921
27	COLLAR, (9.3 mm)	23-8M0021168	23-95286 24
28	WASHER, Rubber	12-953923
29	MOUNT, Rubber	851837
30	CABLE	84-8537403
31	CAP	85-8538161
32	WIRE, Battery	84-8M0069792	84-853740 4
33	CAP	85-853816
34	BOLT	10-8230427
35	CLAMP	54-8M0130961
36	BOLT	10-162231
37	STOPPER	898101257
-	STARTER MOTOR KIT	8M0188346

Steering Drag Link Components

Below is the parts list for Mercury 50MH Steering Drag Link Components:

Position No.	Part Name	OEM Number	Supersedes
-	DRAG LINK KIT, Steering	853824A2
1	CAP	853825
2	ROD, Drag Link	8538241
3	COLLAR	23-9528621
4	WASHER	12-9539210
5	NUT, Nylon	11-161473
6	COLLAR	23-9528622
7	BOLT	10-8518666
8	COTTER PIN	18-8150267
9	SOCKET	8M0079131	853745003, 853745 2
10	WASHER	12-953925
11	COTTER PIN	18-8150262

Steering Handle

Below is the parts list for Mercury 50MH Steering Handle:

Position No.	Part Name	OEM Number	Supersedes
-	HANDLE KIT Comment: SN# 0N114790 & Below	803996T09	803996A 1 SN# 0N114790 & Below
-	HANDLE KIT Comment: SN# 0N114791 & Up	803996T09	803996A 1 SN# 0N114791 & Up
1	HANDLE, Steering Comment: SN# 0N114790 & Below	803996T04	803996004 SN# 0N114790 & Below
1	HANDLE, Steering Comment: SN# 0N114791 & Up	8M0047218
2	DECAL	37-8M0097201
3	GRIP	160861
4	SCREW	10-8150461
5	BUSHING	23-8518582
6	BUSHING	23-8518581
7	WAVE WASHER	13-804017
8	WASHER	12-804508	12-804016
9	HOLDER ASSEMBLY, Steering Handle	8M0077708
10	STUD	16-879194300	16-811653 3
11	WASHER	12-168261
12	NUT	11-85372215
13	WIRE, Throttle	84-804018001	84-804018
14	FRICTION PIECE Comment: SN# 0N114790 & Below	813026	16337 SN# 0N114790 & Below
15	SCREW, Adjusting Comment: SN# 0N114790 & Below	10-16087
16	WASHER, Stainless Steel Comment: SN# 0N114790 & Below	12-16826
17	NUT, (M6) Stainless Steel Comment: SN# 0N114790 & Below	11-400212
18	SHAFT, Throttle	803998
19	BUSHING	23-16336
20	SPACER	23-16191
21	SPACER	23-8537152
22	COTTER PIN	18-8150263
23	BRACKET, Support	804055
24	BOLT, (M6 x 12)	10-8230427
25	STUD Comment: SN# ON175257 & Below	16-879194297	16-853718 1, 16-811654002 SN# ON175257 & Below
25	STUD Comment: SN# ON175258 & Up	8M0074787
26	WASHER Comment: SN# ON175257 & Below	12-16192
26	WASHER Comment: SN# ON175258 & Up	12-8M0074789
27	NUT, Nylon Comment: SN# ON175257 & Below	11-95374
27	NUT Comment: SN# ON175258 & Up	11-8M0074788
28	BRACKET, Steering Comment: SN# ON175257 & Below	804019005	804019 SN# ON175257 & Below
28	BRACKET, Steering Comment: SN# ON175258 & Up	8M0074786
29	BOLT	10-162636
30	SCREW	10-85554410
31	WASHER	12-953921
32	CLAMP	54-953951
33	BOLT	10-8230427
34	BRACKET, Throttle Link	8537392
35	BOLT, (M6 x 14)	10-16223
36	WASHER, Stainless Steel	12-16826
37	FRICTION PIECE Comment: SN# 0N114791 & Up	898101311
38	NUT Comment: SN# 0N114791 & Up	8M0051383	11-892776 SN# 0N114791 & Up
39	SPRING, Stainless Steel Comment: SN# 0N114791 & Up	24-8M0051384	24-892777 SN# 0N114791 & Up
40	BOLT Comment: SN# 0N114791 & Up	10-8M0204707

Throttle Linkage

Below is the parts list for Mercury 50MH Throttle Linkage:

Position No.	Part Name	OEM Number	Supersedes
1	ARM, Actuator	853742003	853742 1
2	BOLT	10-16201
3	WASHER	12-161404
4	COLLAR	23-9528612
5	BOLT	10-16830
6	NUT, (M6) Stainless Steel	11-400212
7	CAM, Throttle Comment: (40 Lightning XR/50)	8537501
7	CAM, Throttle Comment: (40)	8537502
8	LEVER, Advancer	803156
9	SCREW, (M6 x 40)	10-4000333
10	SPRING, Throttle Cam	24-803157
11	WASHER	12-953921
12	COLLAR	23-9528613
13	BALL JOINT	853744001	853744
14	LOCKWASHER, (M6)	13-400256
15	L-LINK	8M0054756	855561 2
16	L-LINK	8555616
17	CAP	853745
18	NUT	11-16081
19	SNAP, Link Rod	163332
20	SOCKET	8M0079131	853745003, 853745 2
21	WASHER	12-953925
22	COTTER PIN	18-8150262
23	ARM, Throttle Stop (Handle)	803993
24	SCREW, (M6 x 25) (Handle)	10-8M0204707
25	WASHER, Stainless Steel (Handle)	12-16826
26	COLLAR, (9.3 mm) (Handle)	23-8M0021168	23-95286 24
27	S-LINK (Handle)	803994
28	SNAP, Link Rod (Handle)	803995

Tools

Below is the parts list for Mercury 50MH Tools:

Position No.	Part Name	OEM Number	Supersedes
1	TOOL	91-8539966
2	TOOL	91-8539968
3	SNAP TOOL, Clutch Pin	91-80313314
4	COLLAR	23-9528623
5	O-RING	25-161773
6	MEASURING TOOL SHAFT	91-80313310
7	PULLER TOOL, Bearing	91-8M0050354	91-803133 11
8	WASHER	12-1614011
9	NUT	11-85372221
10	CLAMP TOOL, Backlash Measuring	91-80313312
11	BOLT	10-803134
12	PLATE TOOL, Dial Gauge	91-80313313
13	PULLER TOOL, Bearing	91-8M0060180	91-853996 4
14	NUT	11-85372220
15	WASHER	12-1614010
16	FLANGE	91-8031332
17	STOPPER TOOL, Shaft	91-8031338
18	SHAFT	91-8031333
19	GUIDE TOOL	91-8031334
20	RETAINER TOOL	91-8031335
21	FLANGE	91-8031336
22	STOPPER TOOL, Shaft	91-8031339
23	GUIDE TOOL	91-8031337
24	WRENCH TOOL	91-85399612
25	SOCKET TOOL	91-8031331
26	WRENCH TOOL	91-8M0101491	91-803133 15
27	INSTALL/REMOVER TOOL, Piston Pin	91-8539962
28	INSTALLER TOOL, Piston Ring	91-803133
29	FLYWHEEL PULLER KIT	91-804761
-	TOOL, Bearing Outer Press Rod	91-895212
-	TOOL, Bearing Outer Press Plate	91-895213
-	TOOL, Bearing Outer Press Guide	91-895214
-	TOOL, Bevel Gear A Set	91-895215001
-	TOOL, Conedisk Spring, D=12	91-895217
-	TOOL, Shimming Gauge	91-895218001
-	TOOL, Thickness Gauge	91-895219
-	TOOL	91-8M0059838	91-804552001
-	TOOL, Flywheel Stripper	91-8M0059838	91-804552001
-	IGNITION CHECKER	803799A1

Top Cowl

Below is the parts list for Mercury 50MH Top Cowl:

Position No.	Part Name	OEM Number	Supersedes
1	TOP COWL ASSEMBLY Comment: (Black-Electric)	100-8M0069515	2189-853778A13, 2189-853778A 3 (Black-Electric)
1	TOP COWL ASSEMBLY Comment: (Silver-Electric)	2189-853778A14	2189-853778A 4 (Silver-Electric)
2	TOP COWL ASSEMBLY Comment: (Black-Manual)	100-8M0128853
2	TOP COWL ASSEMBLY Comment: (Silver-Manual)	100-8M0128854
3	SEAL, Rubber	851851004
4	CAP, Cowl Comment: (Black-Electric)	8537793
4	CAP, Cowl Comment: (Silver-Electric)	8537794
4	CAP, Cowl Comment: (Black-Manual)	8M0129135
4	CAP, Cowl Comment: (Silver Manual)	8M0129136
5	NUT	11-400212
6	WASHER	12-953921
7	SEAL (Electric)	8518513
8	COVER, Fill Comment: (Black-Electric)	851884
8	COVER, Fill Comment: (Silver-Electric)	8518841
9	HINGE (Electric)	8151051
10	PLATE, Spring (Electric)	851885
11	BOLT, (M6 x 14) (Electric)	10-16223
12	NUT (Electric)	11-400212
13	SEAL, Rubber (Manual)	25-162281

Transom and Swivel Brackets(Manual)

Below is the parts list for Mercury 50MH Transom and Swivel Brackets(Manual):

Position No.	Part Name	OEM Number	Supersedes
1	CLAMP BRACKET Comment: (Starboard)	1400-8M0151529
2	CLAMP BRACKET Comment: (Port)	1400-8M0151531
3	TILT TUBE	898101191	853769
4	CAP NUT (Handle)	11-85372214
5	NUT, Nylon	11-853722029	11-853722 13
6	BUSHING	23-8537435
7	BUSHING	23-8113681
8	SCREW	10-16263009
9	DISTANCE PIECE	804040001
10	WASHER	12-16192
11	NUT	11-879194337	11-853722023
12	THUMB SCREW ASSEMBLY	10-804042A1
13	PAD	12-95379
14	THRUST ROD	804041
15	SPRING	24-8126455
16	CAP	851872
17	BOLT	10-879194274	10-823042 12
18	BOLT	10-8129356
19	LOCKING PLATE, Upper	851871
20	GROMMET	25-851870
21	RUBBER	8M0079616	853771 3
22	SWIVEL TUBE	8M0075036	8M0075085, 853770007, 853770
23	THRUST PLATE, Upper	162041
24	BUSHING	23-8537436
25	FRICTION PLATE	162052
26	SWIVEL BRACKET	3407-813029A12	3407-813029 11
27	SCREW, (M8 x 30)	10-4000354
28	SPRING	24-953831
29	GROUND WIRE	84-898101089	84-803779, 84-853740 1
30	BOLT	10-8230427
31	ANODE	97-823912002
32	BOLT	10-8230427
33	BOLT	10-162232
34	O-RING	25-16109003
35	THRUST PLATE	16204004
36	SCREW	10-851866012	10-851866 1
37	WASHER	12-953928
38	WASHER	12-851867
39	MOUNT	8M0075315	853771 2
40	WASHER	12-879194343	12-95392014
41	YOKE, Bottom	8M0064214	853786007, 853786 2
42	C-RING	53-8537142
43	RUBBER DAMPER	8537732
44	NUT	11-85372218
45	COVER	851869
46	BOLT, (M6 x 20)	10-167051
47	GROUND WIRE	84-8537405
48	WASHER, Stainless Steel	12-16826
49	FITTING, Grease	22-824969
50	CABLE ASSEMBLY, Ground	84-898101091	84-878357
51	ANODE	97-804043
52	BOLT	10-8M0147119

Transom and Swivel Brackets(Power Trim)

Below is the parts list for Mercury 50MH Transom and Swivel Brackets(Power Trim):

Position No.	Part Name	OEM Number	Supersedes
1	CLAMP BRACKET, Starboard	3406-803856001
2	CLAMP BRACKET, Port	3406-803856002
3	BOLT ASSEMBLY	853769001	10-851866011
4	NUT, Nylon	11-853722029	11-853722 13
5	CAP NUT (Handle)	11-85372214
6	BUSHING	23-161764
7	THRUST ROD	16198003
8	COTTER PIN	18-8150266
9	CLAMP SCREW	10-162635
10	PAD	12-95379
11	SWIVEL BRACKET	1400-8M0122057
12	SWIVEL TUBE	8M0075038	853770006
13	BUSHING	23-16336007
14	FRICTION PLATE	162052
15	THRUST PLATE	803774004
16	O-RING	25-16109002
17	RUBBER	8M0079616	853771 3
18	BOLT	10-8129356
19	LOCKING PLATE, Upper	851871
20	GROMMET	25-851870
21	CAP	851872
22	BOLT	10-879194274	10-823042 12
23	FITTING, Grease	22-824969
24	BOLT	10-879194254	10-823042045
25	SPRING	24-953831
26	COLLAR	23-95286027
27	GROUND WIRE	84-898101089	84-803779, 84-853740 1
28	BOLT	10-8230427
29	ANODE	97-823912002
30	BOLT	10-162232
31	GROUND WIRE	84-8537405
32	BOLT	10-802619
33	WASHER	12-953928
34	WASHER	12-879194341	12-898101216
35	NUT	11-802620
36	STOPPER, Tilt	815094005
37	GRIP	16208
38	PIN, Spring	17-95218017
39	SPRING	24-95383010
40	YOKE, Bottom	853786005
41	C-RING	53-804027001
42	RUBBER DAMPER	8537732
43	BOLT, (M6 x 20)	10-167051
44	COVER	851869
45	MOUNT	8M0075315	853771 2
46	SCREW	10-851866012	10-851866 1
47	WASHER	12-953928
48	WASHER	12-851867
49	WASHER	12-879194343	12-95392014
50	NUT	11-85372218

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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.