🔎 Mercury 50MH Reference Library — Exploded parts diagrams (35 diagrams), specifications, common issues, and maintenance checklist.
The Mercury 50MH is a 4-Stroke, Inline 4-Cylinder, EFI, SOHC outboard motor. Commonly used on jon boats, pontoons, and mid-size utility craft.
Quick Reference Specifications
| Specification |
Value |
| Engine Type |
4-Stroke, Inline 4-Cylinder, EFI, SOHC |
| Horsepower |
50 HP |
| Displacement |
995 cc |
| Bore x Stroke |
65 mm x 75 mm |
| Spark Plug (Type & Gap) |
NGK IZFR6F-11 |
| Engine Oil Capacity |
3.0 L (3.17 quart) |
| Recommended Engine Oil |
SAE 25W-40 Mercury FourStroke Oil |
| Gear Case Oil Capacity |
440 mL (14.9 fl oz) |
| Idle Speed (in gear) |
650 ± 50 RPM (in gear) |
| Full Throttle RPM Range |
5000-6000 |
| Fuel |
Unleaded Gasoline, 87 Octane min. |
Always verify specifications against your owner's manual for your specific serial number range.
Common Issues & Recommended Parts
Below are common maintenance scenarios for the Mercury 50MH:
-
Water Pump / Overheating: If the tell-tale stream is weak or absent, the water pump impeller likely needs replacement. Inspect annually or every 100 hours. → Recommended: Water Pump Impeller Kit
-
Engine Oil / Maintenance Light: 4-stroke engines require regular oil and filter changes. Use marine-grade oil rated for your engine. Change every 100 hours or annually. → Recommended: Oil Filter, Engine Oil
-
Fuel Injector Issues (EFI models): Rough idle or misfires may indicate clogged fuel injectors. Use fuel stabilizer and clean injectors periodically. → Recommended: Fuel Injector, Fuel Filter
-
Gear Case Oil Leak: Check lower unit seals if gear oil appears milky (water contamination). Replace seals and gaskets during lower unit service. → Recommended: Lower Unit Seal Kit, Drain Plug Gaskets
-
Anode Corrosion: Inspect sacrificial anodes regularly, especially in saltwater. Replace when 50% depleted to protect against galvanic corrosion. → Recommended: Zinc/Aluminum Anode Kit
Parts Diagrams & OEM Part Numbers
Expand the sections below to view detailed exploded parts diagrams and find the exact OEM replacement components for your Mercury 50MH.
▶Accessories (36 parts)
| Ref |
OEM Part # |
Part Name |
| - |
853741 |
CAP (No Trim) |
| 1 |
10-853997A1 |
MOUNTING KIT, Twin Remote Control |
| 2 |
896444A01 |
TIE BAR KIT |
| 3 |
23-9528622 |
COLLAR |
| 4 |
12-9539210 |
WASHER |
| 5 |
10-8518666 |
BOLT |
| 6 |
18-8150267 |
COTTER PIN |
| 7 |
10-851866015 |
SCREW |
| 8 |
803548003 |
PLATE, Steering Rod |
| 9 |
11-161473 |
NUT, Nylon |
| 10 |
896444A02 |
TIE BAR KIT |
| 11 |
8M0074790 |
PLATE, Steering hook Comment: SN# ON175258 & Up |
| 12 |
8M0074791 |
STUD Comment: SN# ON175258 & Up |
| 13 |
11-8M0074788 |
NUT Comment: SN# ON175258 & Up |
| 14 |
12-879194343 |
WASHER Comment: SN# ON175258 & Up |
| 15 |
896445A01 |
CREVICE ASSEMBLY |
| 16 |
23-95286028 |
COLLAR |
| 17 |
12-9539210 |
WASHER |
| 18 |
10-851866016 |
SCREW |
| 19 |
11-161473 |
NUT, Nylon |
| 20 |
10-851866007 |
BOLT |
| 21 |
23-853826 |
SPACER |
| 22 |
84-8M0078284 |
LEAD WIRE |
| 23 |
91-802618 |
TOOL KIT |
| 24 |
50-812639003 |
ROPE, Starter Safety |
| 25 |
168411 |
FLUSH PLUG |
| 26 |
79-804632T01 |
TEMPERATURE GAUGE, Water |
| 27 |
88-804634 |
BULB |
| 28 |
802613 |
DAMPER |
| 29 |
804635 |
BRACKET |
| 30 |
11-802617 |
NUT |
| 31 |
13-168181 |
LOCKWASHER |
| 32 |
804636 |
SENSOR, Water Temperature |
| 33 |
84-804637 |
LEAD WIRE |
| 34 |
8M0127367 |
HOUSING KIT, XL Extension |
| 35 |
84-853799A4 |
CABLE ASSEMBLY, Yellow (Handle) |
▶Air Silencer (19 parts)
| Ref |
OEM Part # |
Part Name |
| - |
27-8M0081614 |
GASKET SET, Powerhead |
| 1 |
8555561 |
AIR SILENCER Comment: (40 Lightning XR/50) |
| 2 |
855557 |
LOCK PLATE |
| 3 |
10-855558 |
SCREW, (M5 x 16) |
| 4 |
855559 |
COVER |
| 5 |
26-855560 |
SEAL, Rubber |
| 6 |
10-162572 |
SCREW, Tapping |
| 7 |
8M0163143 |
C-LINK |
| 8 |
16333 |
ROD, Snap |
| 9 |
855562 |
STOPPER (Electric) |
| 10 |
855563001 |
LINK ROD |
| 11 |
855564 |
CAP |
| 12 |
853745 |
CAP |
| 13 |
11-16081 |
NUT |
| 14 |
8555611 |
ROD |
| 15 |
16333 |
ROD, Snap |
| 16 |
23-851858005 |
BUSHING |
| 17 |
8M0155127 |
KNOB, Choke |
| 18 |
27-802807 |
GASKET Comment: (40 Lightning XR/50) |
▶Bottom Cowl, 0N134078 and below (46 parts)
| Ref |
OEM Part # |
Part Name |
| - |
8M0188346 |
STARTER MOTOR KIT |
| 1 |
2189-8537773 |
BOTTOM COWL |
| 2 |
23-8537437 |
MOUNT, Rubber |
| 3 |
25-16823 |
GROMMET |
| 4 |
25-162263 |
GROMMET (Manual) |
| 5 |
25-16226 |
GROMMET (Non-Oil Injection) |
| 6 |
804057 |
PILOT LAMP (Oil Injection) |
| 7 |
25-16226 |
GROMMET |
| 8 |
25-8518502 |
GROMMET |
| 9 |
25-8518503 |
GROMMET |
| 10 |
25-162284 |
GROMMET |
| 11 |
19-855549 |
PLUG |
| 12 |
8518364 |
BRACKET |
| 13 |
10-823042075 |
SCREW |
| 14 |
13-168181 |
LOCKWASHER |
| 15 |
10-8248324 |
SCREW, (M6 x 16) |
| 16 |
25-8518504 |
GROMMET (Remote Control) |
| 17 |
87-851883 |
SWITCH (Power Trim) |
| 18 |
10-8230427 |
BOLT (Power Trim) |
| 19 |
25-953871 |
GROMMET (Power Trim) |
| 20 |
25-8518507 |
GROMMET (Power Trim) |
| 21 |
10-168288 |
BOLT (Manual Tilt) |
| 22 |
25-16226 |
GROMMET (Manual Tilt) |
| 23 |
10-16830 |
BOLT |
| 24 |
12-161404 |
WASHER |
| 25 |
10-162231 |
BOLT (Handle) |
| 26 |
23-853715007 |
SPACER |
| 27 |
12-953922 |
WASHER |
| 28 |
13-16221 |
WAVE WASHER |
| 29 |
8M0146267 |
COVER HOOK |
| 30 |
10-8230427 |
BOLT |
| 31 |
13-400256 |
LOCKWASHER, (M6) |
| 32 |
12-953921 |
WASHER |
| 33 |
162184 |
HOOK LEVER |
| 34 |
26-16219 |
SEAL |
| 35 |
23-16220 |
BUSHING |
| 36 |
54-8M0130961 |
CLAMP (Power Trim) |
| 37 |
10-879194247 |
SCREW (Power Trim) |
| 38 |
87-804051A1 |
LANYARD SWITCH (Handle) |
| 39 |
823054 |
LANYARD (Handle) |
| 40 |
25-8518505 |
GROMMET |
| 41 |
87-804052A1 |
MAIN SWITCH (Electric) |
| 42 |
8029892,303,303 |
KEY (Electric) Comment: |
| 43 |
87-8M0127937 |
NEUTRAL SWITCH (Electric) |
| 44 |
12-9539211 |
WASHER (Electric) |
| 45 |
54-8M0130961 |
CLAMP (Handle) |
▶Bottom Cowl, 0N134079 and up (47 parts)
| Ref |
OEM Part # |
Part Name |
| - |
8M0188346 |
STARTER MOTOR KIT |
| 1 |
100-8M0143843 |
BOTTOM COWL |
| 2 |
23-8537437 |
MOUNT, Rubber |
| 3 |
25-16823 |
GROMMET |
| 4 |
25-162263 |
GROMMET (Manual) |
| 5 |
25-16226 |
GROMMET (Non-Oil Injection) |
| 6 |
804057 |
PILOT LAMP (Oil Injection) |
| 7 |
25-16226 |
GROMMET |
| 8 |
25-8518502 |
GROMMET |
| 9 |
25-8518503 |
GROMMET |
| 10 |
25-162284 |
GROMMET |
| 11 |
19-855549 |
PLUG |
| 12 |
8M0056387 |
BRACKET Comment: Clutch Cable |
| 13 |
10-823042075 |
SCREW |
| 14 |
8M0085710 |
CLAMP Comment: Power Trim Switch |
| 15 |
10-8248324 |
SCREW, (M6 x 16) |
| 16 |
25-8518504 |
GROMMET (Remote Control) |
| 17 |
87-8M0057108 |
SWITCH, Power Trim |
| 18 |
10-162234 |
BOLT (Power Trim) |
| 19 |
25-953871 |
GROMMET (Power Trim) |
| 20 |
25-898101145 |
O-RING (Power Trim) |
| 21 |
8M0057109 |
BRACKET (Power Trim) |
| 22 |
25-16226 |
GROMMET (Manual Tilt) |
| 23 |
10-16830 |
BOLT |
| 24 |
12-161404 |
WASHER |
| 25 |
25-898101088 |
GROMMET (Power Trim) |
| 26 |
23-853715007 |
SPACER |
| 27 |
12-953922 |
WASHER |
| 28 |
13-16221 |
WAVE WASHER |
| 29 |
8M0146267 |
COVER HOOK |
| 30 |
10-8230427 |
BOLT |
| 31 |
13-400256 |
LOCKWASHER, (M6) |
| 32 |
12-953921 |
WASHER |
| 33 |
162184 |
HOOK LEVER |
| 34 |
26-16219 |
SEAL |
| 35 |
23-16220 |
BUSHING |
| 36 |
54-8M0130961 |
CLAMP (Power Trim) |
| 37 |
10-879194247 |
SCREW (Power Trim) |
| 38 |
87-804051A1 |
LANYARD SWITCH (Handle) |
| 39 |
823054 |
LANYARD (Handle) |
| 40 |
25-8518505 |
GROMMET |
| 41 |
87-804052A1 |
MAIN SWITCH (Electric) |
| 42 |
8029892,303,303 |
KEY (Electric) Comment: |
| 43 |
87-8M0127937 |
NEUTRAL SWITCH (Electric) |
| 44 |
12-9539211 |
WASHER (Electric) |
| 45 |
10-8230427 |
BOLT, (M6 x 12) |
| 46 |
22-8M0057111 |
NIPPLE |
▶Carburetor (34 parts)
| Ref |
OEM Part # |
Part Name |
| - |
853780A2 |
REPAIR KIT, Carburetor |
| 1 |
3303-853720A09 |
CARBURETOR (Upper) Comment: (40 Lightning XR/50) |
| 2 |
3303-853720A6 |
CARBURETOR (Center) Comment: (40 Lightning XR/50) |
| 3 |
3303-853720T12 |
CARBURETOR (Lower) Comment: (40 Lightning XR/50) |
| 4 |
135,162504 |
JET, Main (Lower) Comment: (40 Lightning XR/50) |
| 5 |
80,803689 |
JET, Pilot Comment: (40 Lightning XR/50) |
| 6 |
19-855566 |
PLUG |
| 7 |
162545 |
FLOAT NEEDLE |
| 8 |
17-162561 |
PIN |
| 9 |
162532 |
FLOAT |
| 10 |
10-8536981 |
SCREW |
| 11 |
10-8M0054702 |
SCREW (Upper Carburetor) |
| 12 |
24-162641 |
SPRING, (11 mm) (Upper Carburetor) |
| 13 |
10-8129355 |
SCREW, Idle Adjusting |
| 14 |
24-162641 |
SPRING, (11 mm) |
| 15 |
162584 |
FLOAT BOWL (Lower Carburetor) |
| 16 |
27-855567 |
GASKET |
| 17 |
10-162603 |
SCREW |
| 18 |
10-8M0054703 |
SCREW, Drain |
| 19 |
27-8M0224378 |
GASKET |
| 20 |
812650018 |
MAIN NOZZLE Comment: (40 Lightning XR/50) |
| 21 |
8555401 |
COVER, Carburetor |
| 22 |
27-8555412 |
GASKET |
| 23 |
10-809571003 |
SCREW |
| 24 |
855568 |
COVER (Lower Carburetor) |
| 25 |
10-8M0062252 |
SCREW (Lower Carburetor) |
| 26 |
27-855569 |
GASKET (Lower Carburetor) |
| 27 |
21-851812 |
CHECK VALVE (Lower Carburetor) |
| 28 |
10-851813 |
SCREW (Lower Carburetor) |
| 29 |
11-851814 |
NUT (Lower Carburetor) |
| 30 |
8537312 |
DIAPHRAGM (Lower Carburetor) |
| 31 |
27-8555691 |
GASKET (Lower Carburetor) |
| 32 |
8537291 |
HOUSING, Pump (Lower Carburetor) |
| 33 |
25-8M0065583 |
GROMMET |
▶Crankshaft, Piston and Connecting Rods (19 parts)
| Ref |
OEM Part # |
Part Name |
| - |
27-8M0081614 |
GASKET SET, Powerhead |
| 1 |
400-8M0046560 |
CRANKSHAFT ASSEMBLY |
| 2 |
30-16049T02 |
BEARING, Ball |
| 3 |
43-855552 |
GEAR, Drive |
| 4 |
53-853714 |
C CLIP |
| 5 |
41-880810 |
PIN, Piston |
| 6 |
629-880855 |
CONNECTING ROD |
| 7 |
31-880856 |
BEARING, Needle |
| 8 |
12-880857 |
WASHER |
| 9 |
96162 |
PISTON Comment: (.5 Oversize) |
| 10 |
39-8M0080348 |
RING SET, Piston Comment: (.5 Oversize) Services one piston |
| 11 |
41-803680003 |
PIN, Piston |
| 12 |
53-160571 |
CLIP |
| 13 |
853712 |
THRUST RING |
| 14 |
28-160531 |
KEY |
| 15 |
31-855553 |
BEARING, Main (Upper) |
| 16 |
26-803879 |
SEAL, Oil |
| 17 |
25-855554004 |
O-RING |
| 18 |
31-8130483 |
BEARING, Needle |
▶Cylinder Block (50 parts)
| Ref |
OEM Part # |
Part Name |
| - |
8M0188346 |
STARTER MOTOR KIT |
| 1 |
878-8M0082198 |
CYLINDER BLOCK Comment: (40 Lightning XR/50) |
| 2 |
10-166951 |
BOLT |
| 3 |
12-4002217 |
WASHER |
| 4 |
17-16119 |
PIN, Dowel |
| 5 |
17-9521812 |
PIN, Dowel |
| 6 |
21-853696 |
BLEED VALVE |
| 7 |
22-8M0064617 |
CONNECTOR |
| 8 |
32-95223009 |
TUBING, (220 mm) |
| 9 |
32-898101227 |
HOSE, Rubber (330 mm) |
| 10 |
54-95332002 |
CLIP |
| 11 |
979-96305 |
CYLINDER HEAD |
| 12 |
27-8M0062091 |
GASKET |
| 13 |
8M0231776 |
COVER |
| 14 |
27-8M0115016 |
GASKET |
| 15 |
10-8M0106717 |
BOLT |
| 16 |
12-8M0106725 |
WASHER |
| 17 |
10-898101953 |
SCREW |
| 18 |
32-812940010 |
TUBING, (160 mm) |
| 19 |
8537041 |
THERMOSTAT |
| 20 |
8537051 |
COVER |
| 21 |
27-8537024 |
GASKET |
| 22 |
10-823042 |
BOLT, Stainless Steel |
| 23 |
19-855549 |
PLUG |
| 24 |
97-823913Q |
ANODE |
| 25 |
10-167051 |
BOLT, (M6 x 20) |
| 26 |
8M0137792 |
LIFTING EYE |
| 27 |
10-168304 |
BOLT |
| 28 |
12-4002217 |
WASHER |
| 29 |
1100-8537131 |
END CAP, Lower |
| 30 |
25-8537091 |
O-RING |
| 31 |
26-8M0056308 |
SEAL, Oil |
| 32 |
26-8537078 |
SEAL, Oil |
| 33 |
10-167051 |
BOLT, (M6 x 20) |
| 34 |
8M0081401 |
COVER, Exhaust |
| 35 |
8537062 |
COVER, Exhaust |
| 36 |
27-812939020 |
GASKET |
| 37 |
10-825009026 |
BOLT |
| 38 |
21-42657A3 |
CHECK VALVE |
| 39 |
22-898101961 |
NIPPLE |
| 40 |
32-851848005 |
HOSE, (260 mm) |
| 41 |
25-855551 |
GROMMET (Electric) |
| 42 |
33-8M0181926 |
SPARK PLUG Comment: (40 Lightning XR/50)(NGK-BR8HS-10) |
| 43 |
54-8M0130961 |
CLAMP |
| 44 |
10-879194247 |
SCREW |
| 45 |
803992 |
COVER PLATE (Manual) |
| 46 |
27-8M0081613 |
GASKET (Manual) |
| 47 |
10-162233 |
SCREW (Manual) |
| 48 |
17-16119 |
PIN, Dowel |
| 49 |
12-16826 |
WASHER |
▶Driveshaft Housing (28 parts)
| Ref |
OEM Part # |
Part Name |
| - |
8M0127367 |
HOUSING KIT, XL Extension |
| 1 |
1599-8M0090843 |
HOUSING, Driveshaft, Short Comment: Long/X-Long |
| 2 |
10-8M0054995 |
BOLT |
| 3 |
12-16192 |
WASHER |
| 4 |
851856T01 |
SPLASH PLATE |
| 5 |
25-851850 |
GROMMET |
| 6 |
10-855544030 |
SCREW |
| 7 |
25-8518501 |
GROMMET |
| 8 |
11-815057 |
NUT |
| 9 |
8M0147035 |
SEAL, Rubber |
| 10 |
27-812939022 |
GASKET |
| 11 |
851852 |
PLATE, Exhaust |
| 12 |
27-812939024 |
GASKET |
| 13 |
8518511 |
SEAL, Rubber |
| 14 |
10-823042 |
BOLT, Stainless Steel |
| 15 |
17-16119 |
PIN, Dowel |
| 16 |
851853 |
EXTENSION, Exhaust |
| 17 |
10-855544031 |
SCREW |
| 18 |
27-812939019 |
GASKET |
| 19 |
851854 |
TUBE, Exhaust |
| 20 |
10-823042074 |
SCREW |
| 21 |
27-812939023 |
GASKET |
| 22 |
26-8537074 |
SEAL, X-Long |
| 23 |
853783003 |
HOUSING, Extension, X-Long |
| 24 |
10-879194274 |
BOLT, X-Long |
| 25 |
853794 |
RETAINER, X-Long |
| 26 |
8107532 |
STOPPER, X-Long |
| 27 |
10-8230427 |
BOLT, X-Long |
▶Electrical Components (21 parts)
| Ref |
OEM Part # |
Part Name |
| - |
27-8M0081614 |
GASKET SET, Powerhead |
| 1 |
16061005 |
CD UNIT |
| 2 |
25-8M0127927 |
O-RING |
| 3 |
16064006 |
COIL, Ignition |
| 4 |
85-855543 |
BOOT, With Resistance |
| 5 |
54-816311T |
TIE STRAP, (8.00 Inches) |
| 6 |
10-167051 |
BOLT, (M6 x 20) |
| 7 |
27-851834 |
GASKET |
| 8 |
8M0123143 |
BRACKET, Electrical |
| 9 |
851835 |
COVER |
| 10 |
10-8555442 |
SCREW |
| 11 |
23-8537437 |
MOUNT, Rubber |
| 12 |
25-8518153 |
GROMMET |
| 13 |
23-853715007 |
SPACER |
| 14 |
10-162232 |
BOLT |
| 15 |
12-161404 |
WASHER |
| 16 |
88-8538141 |
FUSE |
| 17 |
10-953965 |
BOLT |
| 18 |
54-8M0130961 |
CLAMP (Electric) |
| 19 |
10-95396 |
BOLT (Electric) |
| 20 |
84-853740014 |
WIRE, Ground |
▶Electrical Components(Electric Models) (25 parts)
| Ref |
OEM Part # |
Part Name |
| - |
8M0188346 |
STARTER MOTOR KIT |
| 1 |
853811003 |
RECTIFIER |
| 2 |
10-8555443 |
SCREW |
| 3 |
853829A1 |
SOLENOID ASSEMBLY, Choke |
| 4 |
853830 |
PLUNGER |
| 5 |
10-162454 |
SCREW |
| 6 |
8M0098603 |
BRACKET |
| 7 |
10-162233 |
SCREW |
| 8 |
8555615 |
HOOK |
| 9 |
17-952189 |
PIN, Dowel |
| 10 |
84-85374011 |
HARNESS ASSEMBLY |
| 11 |
84-8537406 |
WIRE, Fuse |
| 12 |
87-851839 |
SOLENOID SWITCH |
| 13 |
87-8518391 |
SOLENOID SWITCH |
| 14 |
84-8537407 |
CABLE |
| 15 |
84-8537408 |
CABLE, Black |
| 16 |
84-8537409 |
CABLE |
| 17 |
84-85374010 |
CABLE |
| 18 |
85-8538161 |
CAP |
| 19 |
10-8230427 |
BOLT, (M6 x 12) |
| 20 |
802808A1 |
BUZZER ASSEMBLY, Overheat Comment: (40 Lightning XR/50) |
| 21 |
802809A1 |
SENSOR ASSEMBLY, Overheat Comment: (40 Lightning XR/50) |
| 22 |
8107532 |
STOPPER Comment: (40 Lightning XR/50) |
| 23 |
10-167051 |
BOLT Comment: (40 Lightning XR/50) |
| 24 |
84-85374012 |
HARNESS ASSEMBLY (Handle) |
▶Flywheel (21 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
262-8150242 |
FLYWHEEL |
| 2 |
8M0109038 |
PLATE ASSEMBLY, Coil |
| 3 |
160663 |
TRIGGER |
| 4 |
8537381 |
PULSE HOLDER |
| 5 |
160582 |
STATOR |
| 6 |
10-8230318 |
SCREW |
| 7 |
160742 |
COIL, Charger (Set) |
| 8 |
10-8230318 |
SCREW |
| 9 |
8537382 |
WIRE GUIDE |
| 10 |
10-8M0135299 |
SCREW |
| 11 |
54-851817 |
CLAMP |
| 12 |
10-8230314 |
SCREW |
| 13 |
54-816311T |
TIE STRAP, (8.00 Inches) |
| 14 |
8537101 |
TIMING PLATE |
| 15 |
853711 |
GUIDE PLATE |
| 16 |
10-166954 |
BOLT |
| 17 |
13-16818 |
LOCKWASHER |
| 18 |
15-8537953 |
SHIM Comment: (.25) |
| 19 |
10-8555441 |
SCREW |
| 20 |
11-851832 |
NUT |
| 21 |
12-8539911 |
WASHER |
▶Fuel Line (20 parts)
| Ref |
OEM Part # |
Part Name |
| - |
27-8M0081614 |
GASKET SET, Powerhead |
| 1 |
35-8M0088825 |
FILTER ASSEMBLY, Fuel Comment: SN# 0N072167 & Up |
| 2 |
853735002 |
CUP Comment: SN# 0N072167 & Up |
| 3 |
25-851815006 |
O-RING Comment: SN# 0N072167 & Up |
| 4 |
35-853733002 |
FILTER Comment: SN# 0N072167 & Up |
| 5 |
25-8518151 |
O-RING Comment: SN# 0N072166 & Below |
| 6 |
11-400213 |
NUT |
| 7 |
12-16192 |
WASHER |
| 8 |
21-8518121 |
CHECK VALVE (Oil Injection) |
| 9 |
32-95394013 |
TUBING, (215 mm) (Oil Injection) |
| 10 |
32-851848011 |
TUBING, (300 mm) (Oil Injection) |
| 11 |
32-95394014 |
TUBING, (200 mm) (Oil Injection) |
| 12 |
32-95394015 |
TUBING, (80 mm) (Oil Injection) |
| 13 |
54-95395 |
CLIP, Stainless Steel (Oil Injection) |
| 14 |
22-853736 |
CONNECTOR, Fuel |
| 15 |
11-17480 |
NUT |
| 16 |
54-95395 |
CLIP, Stainless Steel (Non-Oil Injection) |
| 17 |
32-851848014 |
TUBING, (350 mm) (Non-Oil Injection) |
| 18 |
32-95394016 |
TUBING, (530 mm) (Non-Oil Injection) |
| 19 |
27-803663017 |
GASKET |
▶Fuel Tank(Plastic- 6.6 Gallon) (18 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
1259-859063A2 |
TANK ASSEMBLY, Fuel (Quick Connect) |
| 2 |
36-816976Q1 |
CAP ASSEMBLY, Fuel-Manual Vent |
| 3 |
27-8169771 |
GASKET, Fuel Cap |
| 4 |
859059A2 |
PICK UP ASSEMBLY, Fuel (Threaded Connection) |
| 5 |
8M0084089 |
PICK UP ASSEMBLY, Fuel (Quick Connect) |
| 6 |
859056 |
FLOAT |
| 7 |
10-40056107 |
SCREW, (M5 x 16) |
| 8 |
12-859080 |
WASHER |
| 9 |
27-859072 |
GASKET |
| 10 |
32-8M0172378 |
HOSE ASSEMBLY, Fuel Comment: (2009 and Up) |
| 11 |
13330Q07 |
BULB ASSEMBLY, Primer |
| 12 |
21-13331A3 |
CHECK VALVE ASSEMBLY |
| 13 |
21-13331A4 |
CHECK VALVE ASSEMBLY |
| 14 |
NSS |
NOT SOLD SEPARATE, Clamp |
| 15 |
NSS |
NOT SOLD SEPARATE, Clamp |
| 16 |
22-89771Q2 |
CONNECTOR, (.250-18) |
| 17 |
22-8M0120628 |
CONNECTOR, Fuel |
| 18 |
54-853798 |
CLAMP |
▶Gear Housing, Driveshaft, Serial 0N116270 and Below (47 parts)
| Ref |
OEM Part # |
Part Name |
| - |
8M0127367 |
HOUSING KIT, XL Extension |
| 1 |
1600-8M0127361 |
GEAR HOUSING ASSEMBLY, Basic Comment: X-Long |
| 2 |
31-8130487 |
BEARING, Needle |
| 3 |
10-879194274 |
BOLT |
| 4 |
22-8M0229353 |
PLUG |
| 5 |
27-95220 |
GASKET |
| 6 |
853763003 |
STRAINER, Water, Set |
| 7 |
10-8555444 |
SCREW |
| 8 |
11-85372216 |
NUT |
| 9 |
8537632 |
STRAINER, Water |
| 10 |
10-8248324 |
SCREW, (M6 x 16) |
| 11 |
22-953682 |
SCREW, Drain |
| 12 |
27-95220011 |
GASKET |
| 13 |
45-16136007 |
DRIVESHAFT Comment: X-Long |
| 14 |
30-161283 |
BEARING, Ball |
| 15 |
24-953836 |
SPRING |
| 16 |
43-16138004 |
GEAR, Pinion |
| 17 |
11-85372217 |
NUT |
| 18 |
15-851855015 |
SHIM Comment: .15 |
| 19 |
47-161542 |
IMPELLER |
| 20 |
28-161551 |
KEY |
| 21 |
46-161563 |
HOUSING, Upper Water Pump |
| 22 |
161573 |
INSERT |
| 23 |
27-16158017 |
GASKET |
| 24 |
851857 |
GUIDE PLATE |
| 25 |
27-8M0155405 |
GASKET |
| 26 |
46-8260532 |
HOUSING, Water Pump Lower |
| 27 |
17-952188 |
PIN, Dowel |
| 28 |
26-8537079 |
SEAL, Oil |
| 29 |
15-8537954 |
SHIM |
| 30 |
25-16131 |
O-RING |
| 31 |
10-879194276 |
BOLT |
| 32 |
26-161682 |
SEAL |
| 33 |
32-16170007 |
TUBE, Water Comment: X-Long |
| 34 |
26-161712 |
SEAL |
| 35 |
23-9528615 |
COLLAR |
| 36 |
26-8537074 |
SEAL |
| 37 |
8M0172382 |
CAM |
| 38 |
17-16179 |
PIN |
| 39 |
16186006 |
CAM ROD Comment: X-Long |
| 40 |
23-161762 |
BUSHING |
| 41 |
25-161772 |
O-RING |
| 42 |
25-161782 |
O-RING |
| 43 |
8107532 |
STOPPER |
| 44 |
10-8230427 |
BOLT |
| 45 |
851859 |
CONNECTOR |
| 46 |
17-952189 |
PIN, Dowel |
▶Gear Housing, Driveshaft, Serial 0N116271 and Up (47 parts)
| Ref |
OEM Part # |
Part Name |
| - |
8M0127367 |
HOUSING KIT, XL Extension |
| 1 |
1600-8M0127361 |
GEAR HOUSING ASSEMBLY, Basic Comment: X-Long |
| 2 |
31-8130487 |
BEARING, Needle |
| 3 |
10-879194274 |
BOLT |
| 4 |
22-8M0229353 |
PLUG |
| 5 |
27-95220 |
GASKET |
| 6 |
853763003 |
STRAINER, Water, Set |
| 7 |
10-8555444 |
SCREW |
| 8 |
11-85372216 |
NUT |
| 9 |
8537632 |
STRAINER, Water |
| 10 |
10-8248324 |
SCREW, (M6 x 16) |
| 11 |
22-953682 |
SCREW, Drain |
| 12 |
27-95220011 |
GASKET |
| 13 |
45-16136007 |
DRIVESHAFT Comment: X-Long |
| 14 |
30-161283 |
BEARING, Ball |
| 15 |
24-953836 |
SPRING |
| 16 |
43-16138004 |
GEAR, Pinion |
| 17 |
11-85372217 |
NUT |
| 18 |
15-851855015 |
SHIM Comment: .15 |
| 19 |
47-161542 |
IMPELLER |
| 20 |
28-161551 |
KEY |
| 21 |
46-16156004 |
HOUSING, Upper Water Pump |
| 22 |
16157005 |
INSERT, Water Pump |
| 23 |
27-16158011 |
GASKET |
| 24 |
851857 |
GUIDE PLATE |
| 25 |
27-8M0155405 |
GASKET |
| 26 |
46-8260532 |
HOUSING, Water Pump Lower |
| 27 |
17-952188 |
PIN, Dowel |
| 28 |
26-8537079 |
SEAL, Oil |
| 29 |
15-8537954 |
SHIM |
| 30 |
25-16131 |
O-RING |
| 31 |
10-879194276 |
BOLT |
| 32 |
26-161682 |
SEAL |
| 33 |
32-16170007 |
TUBE, Water Comment: X-Long |
| 34 |
26-161712 |
SEAL |
| 35 |
23-9528615 |
COLLAR |
| 36 |
26-8537074 |
SEAL |
| 37 |
8M0172382 |
CAM |
| 38 |
17-16179 |
PIN |
| 39 |
16186006 |
CAM ROD Comment: X-Long |
| 40 |
23-161762 |
BUSHING |
| 41 |
25-161772 |
O-RING |
| 42 |
25-161782 |
O-RING |
| 43 |
8107532 |
STOPPER |
| 44 |
10-8230427 |
BOLT |
| 45 |
851859 |
CONNECTOR |
| 46 |
17-952189 |
PIN, Dowel |
▶Gear Housing, Propeller Shaft, Serial 0N116270 and Below (31 parts)
| Ref |
OEM Part # |
Part Name |
| - |
27-851887A08 |
GASKET SET, Lower Unit |
| 1 |
1600-8M0127361 |
GEAR HOUSING ASSEMBLY, Basic Comment: (X-Long) |
| 47 |
31-8130488 |
BEARING, Needle |
| 48 |
43-8129442 |
GEAR, Forward |
| 49 |
15-851860001 |
SHIM Comment: (.1) |
| 50 |
44-195132 |
PROPELLER SHAFT |
| 51 |
52-812946003 |
CLUTCH |
| 52 |
17-161502 |
PIN, Clutch |
| 53 |
24-8126456 |
SPRING |
| 54 |
24-176673 |
SPRING |
| 55 |
8537641 |
HOLDER, Spring |
| 56 |
30-161322 |
BALL, Steel |
| 57 |
161521 |
FOLLOWER, Cam |
| 58 |
8M0119562 |
CARRIER ASSEMBLY, Bearing |
| 59 |
31-8130487 |
BEARING, Needle |
| 60 |
26-161302 |
SEAL, Oil |
| 61 |
30-161323 |
BEARING, Ball |
| 62 |
25-161312 |
O-RING |
| 63 |
43-8129453 |
GEAR, Reverse |
| 64 |
12-161408 |
WASHER |
| 65 |
10-8M0086977 |
BOLT |
| 66 |
12-16826 |
WASHER, Stainless Steel |
| 67 |
161453 |
THRUST HUB |
| 68 |
879150151 |
HUB |
| 69 |
48-802621005 |
PROPELLER, (12.5) |
| 70 |
851861 |
THRUST HUB (Rear) |
| 71 |
12-161409 |
WASHER |
| 72 |
11-161472 |
PROP NUT |
| 73 |
18-8150265 |
COTTER PIN |
| 74 |
853762 |
TRIM TAB |
| 75 |
10-167051 |
BOLT, (M6 x 20) |
▶Gear Housing, Propeller Shaft, Serial 0N116271 and Up (31 parts)
| Ref |
OEM Part # |
Part Name |
| - |
27-8M0125990 |
GASKET SET, Lower Unit |
| 1 |
1600-8M0127361 |
GEAR HOUSING ASSEMBLY, Basic Comment: (X-Long) |
| 47 |
31-8130488 |
BEARING, Needle |
| 48 |
43-8129442 |
GEAR, Forward |
| 49 |
15-851860001 |
SHIM Comment: (.1) |
| 50 |
44-195132 |
PROPELLER SHAFT |
| 51 |
52-812946003 |
CLUTCH |
| 52 |
17-161502 |
PIN, Clutch |
| 53 |
24-8126456 |
SPRING |
| 54 |
24-176673 |
SPRING |
| 55 |
8537641 |
HOLDER, Spring |
| 56 |
30-161322 |
BALL, Steel |
| 57 |
161521 |
FOLLOWER, Cam |
| 58 |
8M0119562 |
CARRIER ASSEMBLY, Bearing |
| 59 |
31-8130487 |
BEARING, Needle |
| 60 |
26-161302 |
SEAL, Oil |
| 61 |
30-161323 |
BEARING, Ball |
| 62 |
25-161312 |
O-RING |
| 63 |
43-8129453 |
GEAR, Reverse |
| 64 |
12-161408 |
WASHER |
| 65 |
10-8M0086977 |
BOLT |
| 66 |
12-16826 |
WASHER, Stainless Steel |
| 67 |
161453 |
THRUST HUB |
| 68 |
879150151 |
HUB |
| 69 |
48-802621005 |
PROPELLER, (12.5) |
| 70 |
851861 |
THRUST HUB (Rear) |
| 71 |
12-161409 |
WASHER |
| 72 |
11-161472 |
PROP NUT |
| 73 |
18-8150265 |
COTTER PIN |
| 74 |
853762 |
TRIM TAB |
| 75 |
10-167051 |
BOLT, (M6 x 20) |
▶Inlet Manifold and Reed Block (14 parts)
| Ref |
OEM Part # |
Part Name |
| - |
27-8M0081614 |
GASKET SET, Powerhead |
| 1 |
802810A1 |
MANIFOLD ASSEMBLY, Intake Comment: (40 Lightning XR/50) |
| 2 |
27-8M0047033 |
GASKET |
| 3 |
10-823042 |
BOLT |
| 4 |
8537192 |
REED BLOCK Comment: (40 Lightning XR/50) |
| 5 |
32-95394011 |
TUBING, (65 mm) |
| 6 |
32-95394012 |
TUBING, (155 mm) |
| 7 |
54-95395 |
CLIP, Stainless Steel |
| 8 |
10-855809003 |
BOLT |
| 9 |
12-809931044 |
WASHER |
| 10 |
13-16818 |
LOCKWASHER |
| 11 |
54-8M0130961 |
CLAMP |
| 12 |
10-8M0204707 |
BOLT, Stainless Steel |
| 13 |
10-8230317 |
SCREW |
▶Manual Tilt, Serial Number 0N096057 and Below (26 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
8M0183798 |
GRIP |
| 2 |
8M0051399 |
BUTTON |
| 3 |
10-803790001 |
SHAFT/BOLT, Reverse Lock Lever |
| 4 |
12-16826 |
WASHER, Stainless Steel |
| 5 |
804048 |
LEVER, Tilt Stopper |
| 6 |
12-953921 |
WASHER |
| 7 |
24-8040246 |
SPRING |
| 8 |
804050 |
LINK |
| 9 |
804046003 |
SHAFT, Reverse Lock |
| 10 |
53-160572 |
E RING |
| 11 |
24-953832 |
SPRING |
| 12 |
853774 |
STOP |
| 13 |
8251131 |
BRACKET |
| 14 |
8M0230676 |
STOPPER, Tilt |
| 15 |
17-9521813 |
PIN, Spring |
| 16 |
879194006 |
SET PLATE |
| 17 |
10-8M0098607 |
BOLT |
| 18 |
24-8040245 |
SPRING Comment: (Long)(X-Long) |
| 19 |
804047 |
ROD, Reverse Lock |
| 20 |
804044 |
LOCK, Reverse (Starboard) |
| 21 |
804045004 |
ARM, Reverse Lock |
| 22 |
8040441 |
LOCK, Reverse (Port) |
| 23 |
18-8150261 |
COTTER PIN |
| 24 |
804049001 |
SHAFT |
| 25 |
24-824024012 |
SPRING |
| 26 |
24-824024011 |
SPRING |
▶Manual Tilt, Serial Number 0N096058 and Up (27 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
8M0183798 |
GRIP |
| 2 |
8M0051399 |
BUTTON |
| 3 |
10-803790001 |
BOLT, Shoulder |
| 4 |
12-16826 |
WASHER, Stainless Steel |
| 5 |
879288263 |
LEVER, Tilt Stopper |
| 6 |
12-953921 |
WASHER |
| 7 |
12-953925 |
WASHER |
| 8 |
23-898103107 |
BUSHING |
| 9 |
24-8040246 |
SPRING |
| 10 |
804050 |
LINK |
| 11 |
804046003 |
SHAFT, Reverse Lock |
| 12 |
53-160572 |
E RING |
| 13 |
24-953832 |
SPRING |
| 14 |
853774 |
STOP |
| 15 |
8251131 |
BRACKET |
| 16 |
8M0230676 |
STOPPER, Tilt |
| 17 |
879194006 |
SET PLATE |
| 18 |
10-8M0098607 |
BOLT |
| 19 |
24-8040245 |
SPRING Comment: (Long)(X-Long) |
| 20 |
804047 |
ROD, Reverse Lock |
| 21 |
804044 |
LOCK, Reverse (Starboard) |
| 22 |
804045004 |
ARM, Reverse Lock |
| 23 |
8040441 |
LOCK, Reverse (Port) |
| 24 |
18-8150261 |
COTTER PIN |
| 25 |
804049001 |
SHAFT |
| 26 |
24-824024012 |
SPRING |
| 27 |
24-824024011 |
SPRING |
▶Oil Injection Components (36 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
851840A1 |
PUMP ASSEMBLY, Oil |
| 2 |
25-8518154 |
O-RING |
| 3 |
10-851841 |
BOLT |
| 4 |
12-953927 |
WASHER |
| 5 |
10-8M0098600 |
BOLT |
| 6 |
13-400256 |
LOCKWASHER, (M6) |
| 7 |
43-8555521 |
GEAR, Driven |
| 8 |
23-851858 |
BUSHING |
| 9 |
163332 |
SNAP, Link Rod |
| 10 |
8M0079379 |
LINK ROD |
| 11 |
11-16081 |
NUT |
| 12 |
853745 |
CAP |
| 13 |
1270-851842 |
TANK, Oil |
| 14 |
25-8518153 |
GROMMET |
| 15 |
23-853715007 |
SPACER |
| 16 |
23-8537437 |
MOUNT, Rubber |
| 17 |
10-162232 |
BOLT |
| 18 |
12-161404 |
WASHER |
| 19 |
36-851843 |
CAP |
| 20 |
27-851844 |
GASKET |
| 21 |
851845 |
HOOK |
| 22 |
21-8518122 |
CHECK VALVE |
| 23 |
851846 |
SENSOR |
| 24 |
35-851847A1 |
FILTER ASSEMBLY, Oil |
| 25 |
8537351 |
CUP |
| 26 |
25-851815 |
O-RING |
| 27 |
35-8518471 |
FILTER |
| 28 |
25-8518151 |
O-RING |
| 29 |
11-400213 |
NUT |
| 30 |
12-16192 |
WASHER |
| 31 |
32-851848031 |
TUBING, (400 mm), To Oil Pump |
| 32 |
32-851848030 |
TUBING, (700 mm) |
| 33 |
54-8M0129429 |
CLIP |
| 34 |
32-8518482 |
TUBING, (230 mm) |
| 35 |
54-803525005 |
CLIP |
| 36 |
898101258 |
PLATE |
▶Power Trim (16 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
8M0219173 |
POWER TRIM ASSEMBLY |
| 2 |
23-16176009 |
BUSHING |
| 3 |
23-16176010 |
BUSHING |
| 4 |
23-161765 |
BUSHING |
| 5 |
10-8230427 |
BOLT |
| 6 |
84-898101089 |
GROUND WIRE |
| 7 |
23-16176011 |
BUSHING |
| 8 |
12-853822002 |
WASHER |
| 9 |
53-804027003 |
C RING |
| 10 |
54-953951 |
CLAMP |
| 11 |
54-17169 |
CLAMP |
| 12 |
10-8555445 |
SCREW |
| 13 |
17-8M0091499 |
PIN |
| 14 |
17-8M0091498 |
PIN, Cylinder |
| 15 |
10-879194248 |
BOLT |
| 16 |
12-898101937 |
WASHER |
▶Power Trim Components (24 parts)
| Ref |
OEM Part # |
Part Name |
| - |
8M0219173 |
POWER TRIM ASSEMBLY |
| 1 |
8M0234862 |
MOTOR |
| 2 |
898101259 |
BRACKET |
| 3 |
25-16131014 |
O-RING (Component of O-Ring Set) |
| 4 |
10-16078 |
SCREW |
| 5 |
25-161315 |
O-RING |
| 6 |
10-851866013 |
SCREW |
| 7 |
851877002 |
COUPLING |
| 8 |
35-851876 |
FILTER |
| 9 |
10-8518663 |
BOLT |
| 10 |
10-8518664 |
BOLT |
| 11 |
827674002 |
PUMP |
| 12 |
25-161314 |
O-RING |
| 13 |
853768001 |
JOINT, (Metal) |
| 14 |
10-851866014 |
SCREW |
| 15 |
8M0131044 |
TANK, Reservoir |
| 16 |
896440A01 |
CAP ASSEMBLY |
| 17 |
25-16131A05 |
O-RING SET |
| 18 |
827672A05 |
RELIEF VALVE ASSEMBLY |
| 19 |
NSS |
NOT SOLD SEPARATE, O-Ring (Component of O-Ring Set) |
| 20 |
813442A04 |
VALVE ASSEMBLY |
| 21 |
26-898101245 |
WASHER, Sealing |
| 22 |
813442A03 |
MANUAL VALVE ASSEMBLY |
| 23 |
53-804027002 |
C RING |
▶Recoil Starter (36 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
8M0225922 |
STARTER ASSEMBLY, Recoil |
| 2 |
23-8518583 |
BUSHING |
| 3 |
804026 |
SLIDING PLATE |
| 4 |
24-804024 |
SPRING, Starter |
| 5 |
804022 |
REEL |
| 6 |
12-9539212 |
WASHER |
| 7 |
53-804027 |
C RING |
| 8 |
24-8040242 |
SPRING, Return |
| 9 |
804023 |
RATCHET |
| 10 |
24-8040241 |
SPRING, Friction |
| 11 |
8040261 |
SLIDING PLATE |
| 12 |
804025 |
FRICTION PLATE |
| 13 |
10-162637 |
BOLT |
| 14 |
50-804028 |
ROPE, Starter |
| 15 |
804029 |
HANDLE, Starter |
| 16 |
8M0054758 |
GUIDE |
| 17 |
10-162637 |
BOLT |
| 18 |
804031 |
STOPPER, Reel |
| 19 |
804032 |
ARM, Stopper |
| 20 |
24-8040243 |
SPRING, Stopper |
| 21 |
12-9539213 |
WASHER |
| 22 |
18-81502611 |
COTTER PIN |
| 23 |
84-85374013 |
WIRE |
| 24 |
804033 |
HOLDER, Cable |
| 25 |
10-804034 |
SCREW |
| 26 |
23-8113683 |
SLEEVE |
| 27 |
853755002 |
CAP, Starter Handle |
| 28 |
13-400256 |
LOCKWASHER, (M6) |
| 29 |
10-8M0204707 |
SCREW, (M6 x 25) |
| 30 |
12-16826 |
WASHER, Stainless Steel |
| 31 |
23-8M0021168 |
COLLAR, (9.3 mm) |
| 32 |
804036 |
LOCK ARM, Starter |
| 33 |
8M0231222 |
PULLEY, Starter |
| 34 |
10-168307 |
BOLT |
| 35 |
13-17025 |
LOCKWASHER |
| 36 |
10-8M0204707 |
SCREW, (M6 x 25) |
▶Remote Control Components (47 parts)
| Ref |
OEM Part # |
Part Name |
| - |
8M0223091 |
SINGLE REMOTE CONTROL |
| 1 |
802977 |
CAP |
| 2 |
19-802978 |
PLUG |
| 3 |
802974 |
GRIP |
| 4 |
802973 |
LEVER, Control |
| 5 |
10-823042067 |
SCREW |
| 6 |
802975 |
NEUTRAL LOCK ARM |
| 7 |
24-802976 |
SPRING |
| 8 |
10-823042067 |
SCREW |
| 9 |
12-8029651 |
WASHER |
| 10 |
37-802987 |
DECAL |
| 11 |
10-802986 |
SCREW, Adjusting |
| 12 |
12-8029652 |
WASHER |
| 13 |
53-160572 |
E RING |
| 14 |
802985 |
COVER |
| 15 |
802971 |
DETENT PLATE |
| 16 |
8029691 |
ROLLER |
| 17 |
802972 |
RETAINER |
| 18 |
10-163341 |
SCREW |
| 19 |
23-8029633 |
BUSHING |
| 20 |
802968 |
THRUST PLATE |
| 21 |
802967 |
GEAR, Drive |
| 22 |
10-171741 |
BOLT |
| 23 |
11-16081 |
NUT, Stainless Steel |
| 24 |
802969 |
ROLLER |
| 25 |
8M0135304 |
ARM, Throttle |
| 26 |
23-8029631 |
BUSHING |
| 27 |
802982 |
DRUM |
| 28 |
13-8029661 |
WAVE WASHER |
| 29 |
10-953861 |
SCREW |
| 30 |
10-802979 |
BOLT |
| 31 |
12-16192 |
WASHER |
| 32 |
802984 |
REAR PANEL |
| 33 |
802980 |
HOUSING, Rear |
| 34 |
24-8029761 |
SPRING |
| 35 |
802983 |
RETAINER |
| 36 |
8029692 |
ROLLER |
| 37 |
10-163341 |
SCREW |
| 38 |
23-8029632 |
BUSHING |
| 39 |
802964 |
FRICTION ARM, Throttle |
| 40 |
13-802966 |
WAVE WASHER |
| 41 |
12-802965 |
WASHER |
| 42 |
802962 |
SHIFT GEAR |
| 43 |
23-802963 |
BUSHING |
| 44 |
10-95386 |
BOLT |
| 45 |
8M0085508 |
LEVER |
| 46 |
23-8029634 |
BUSHING |
▶Service/Support Material (1 parts)
| Ref |
OEM Part # |
Part Name |
| - |
37-87819110 |
DECAL, Shift (F-N-R) Comment: (Mariner) |
▶Shift Components (18 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
161864 |
SHIFT ROD |
| 2 |
161843 |
LEVER, Shift Rod |
| 3 |
851862 |
SHIFT ARM |
| 4 |
23-163361 |
BUSHING |
| 5 |
13-8537234 |
WAVE WASHER |
| 6 |
54-851863 |
CLIP |
| 7 |
24-8M0138736 |
STOPPER |
| 8 |
10-8107551 |
BOLT |
| 9 |
8M0138737 |
CLAMP |
| 10 |
851865 |
SHIFT SHAFT |
| 11 |
12-953925 |
WASHER |
| 12 |
54-851863 |
CLIP |
| 13 |
8M0079131 |
SOCKET |
| 14 |
12-953925 |
WASHER |
| 15 |
18-8150262 |
COTTER PIN |
| 16 |
804037 |
LEVER, Shift (Handle) |
| 17 |
26-16219 |
SEAL (Handle) |
| 18 |
12-16826 |
WASHER, Stainless Steel |
▶Starter Motor (38 parts)
| Ref |
OEM Part # |
Part Name |
| - |
8M0188346 |
STARTER MOTOR KIT |
| 1 |
50-853805A3 |
STARTER MOTOR ASSEMBLY |
| 2 |
8M0188338 |
PINION |
| 3 |
12-953926 |
WASHER |
| 4 |
8M0135544 |
HOLDER, Brush |
| 5 |
10-16821 |
SCREW |
| 6 |
23-8M0135546 |
BUSHING |
| 7 |
25-161784 |
O-RING |
| 8 |
23-8M0135545 |
BUSHING |
| 9 |
12-16826 |
WASHER, Stainless Steel |
| 10 |
13-400256 |
LOCKWASHER, (M6) |
| 11 |
11-853722026 |
NUT |
| 12 |
10-162632 |
BOLT |
| 13 |
13-898101181 |
LOCKWASHER |
| 14 |
12-898101215 |
WASHER |
| 15 |
89-853809T |
SOLENOID, Starter |
| 16 |
10-162233 |
SCREW |
| 17 |
8518362 |
BRACKET |
| 18 |
10-162234 |
BOLT |
| 19 |
851838 |
COVER |
| 20 |
10-823042073 |
SCREW |
| 21 |
851836 |
BRACKET |
| 22 |
8518361 |
BRACKET |
| 23 |
10-823042073 |
SCREW |
| 24 |
10-8M0098607 |
BOLT |
| 25 |
10-8M0204707 |
SCREW, (M6 x 25) |
| 26 |
12-953921 |
WASHER |
| 27 |
23-8M0021168 |
COLLAR, (9.3 mm) |
| 28 |
12-953923 |
WASHER, Rubber |
| 29 |
851837 |
MOUNT, Rubber |
| 30 |
84-8537403 |
CABLE |
| 31 |
85-8538161 |
CAP |
| 32 |
84-8M0069792 |
WIRE, Battery |
| 33 |
85-853816 |
CAP |
| 34 |
10-8230427 |
BOLT |
| 35 |
54-8M0130961 |
CLAMP |
| 36 |
10-162231 |
BOLT |
| 37 |
898101257 |
STOPPER |
▶Steering Drag Link Components (12 parts)
| Ref |
OEM Part # |
Part Name |
| - |
853824A2 |
DRAG LINK KIT, Steering |
| 1 |
853825 |
CAP |
| 2 |
8538241 |
ROD, Drag Link |
| 3 |
23-9528621 |
COLLAR |
| 4 |
12-9539210 |
WASHER |
| 5 |
11-161473 |
NUT, Nylon |
| 6 |
23-9528622 |
COLLAR |
| 7 |
10-8518666 |
BOLT |
| 8 |
18-8150267 |
COTTER PIN |
| 9 |
8M0079131 |
SOCKET |
| 10 |
12-953925 |
WASHER |
| 11 |
18-8150262 |
COTTER PIN |
▶Steering Handle (41 parts)
| Ref |
OEM Part # |
Part Name |
| - |
803996T09 |
HANDLE KIT Comment: SN# 0N114791 & Up |
| 1 |
8M0047218 |
HANDLE, Steering Comment: SN# 0N114791 & Up |
| 2 |
37-8M0097201 |
DECAL |
| 3 |
160861 |
GRIP |
| 4 |
10-8150461 |
SCREW |
| 5 |
23-8518582 |
BUSHING |
| 6 |
23-8518581 |
BUSHING |
| 7 |
13-804017 |
WAVE WASHER |
| 8 |
12-804508 |
WASHER |
| 9 |
8M0077708 |
HOLDER ASSEMBLY, Steering Handle |
| 10 |
16-879194300 |
STUD |
| 11 |
12-168261 |
WASHER |
| 12 |
11-85372215 |
NUT |
| 13 |
84-804018001 |
WIRE, Throttle |
| 14 |
813026 |
FRICTION PIECE Comment: SN# 0N114790 & Below |
| 15 |
10-16087 |
SCREW, Adjusting Comment: SN# 0N114790 & Below |
| 16 |
12-16826 |
WASHER, Stainless Steel Comment: SN# 0N114790 & Below |
| 17 |
11-400212 |
NUT, (M6) Stainless Steel Comment: SN# 0N114790 & Below |
| 18 |
803998 |
SHAFT, Throttle |
| 19 |
23-16336 |
BUSHING |
| 20 |
23-16191 |
SPACER |
| 21 |
23-8537152 |
SPACER |
| 22 |
18-8150263 |
COTTER PIN |
| 23 |
804055 |
BRACKET, Support |
| 24 |
10-8230427 |
BOLT, (M6 x 12) |
| 25 |
8M0074787 |
STUD Comment: SN# ON175258 & Up |
| 26 |
12-8M0074789 |
WASHER Comment: SN# ON175258 & Up |
| 27 |
11-8M0074788 |
NUT Comment: SN# ON175258 & Up |
| 28 |
8M0074786 |
BRACKET, Steering Comment: SN# ON175258 & Up |
| 29 |
10-162636 |
BOLT |
| 30 |
10-85554410 |
SCREW |
| 31 |
12-953921 |
WASHER |
| 32 |
54-953951 |
CLAMP |
| 33 |
10-8230427 |
BOLT |
| 34 |
8537392 |
BRACKET, Throttle Link |
| 35 |
10-16223 |
BOLT, (M6 x 14) |
| 36 |
12-16826 |
WASHER, Stainless Steel |
| 37 |
898101311 |
FRICTION PIECE Comment: SN# 0N114791 & Up |
| 38 |
8M0051383 |
NUT Comment: SN# 0N114791 & Up |
| 39 |
24-8M0051384 |
SPRING, Stainless Steel Comment: SN# 0N114791 & Up |
| 40 |
10-8M0204707 |
BOLT Comment: SN# 0N114791 & Up |
▶Throttle Linkage (28 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
853742003 |
ARM, Actuator |
| 2 |
10-16201 |
BOLT |
| 3 |
12-161404 |
WASHER |
| 4 |
23-9528612 |
COLLAR |
| 5 |
10-16830 |
BOLT |
| 6 |
11-400212 |
NUT, (M6) Stainless Steel |
| 7 |
8537502 |
CAM, Throttle Comment: (40) |
| 8 |
803156 |
LEVER, Advancer |
| 9 |
10-4000333 |
SCREW, (M6 x 40) |
| 10 |
24-803157 |
SPRING, Throttle Cam |
| 11 |
12-953921 |
WASHER |
| 12 |
23-9528613 |
COLLAR |
| 13 |
853744001 |
BALL JOINT |
| 14 |
13-400256 |
LOCKWASHER, (M6) |
| 15 |
8M0054756 |
L-LINK |
| 16 |
8555616 |
L-LINK |
| 17 |
853745 |
CAP |
| 18 |
11-16081 |
NUT |
| 19 |
163332 |
SNAP, Link Rod |
| 20 |
8M0079131 |
SOCKET |
| 21 |
12-953925 |
WASHER |
| 22 |
18-8150262 |
COTTER PIN |
| 23 |
803993 |
ARM, Throttle Stop (Handle) |
| 24 |
10-8M0204707 |
SCREW, (M6 x 25) (Handle) |
| 25 |
12-16826 |
WASHER, Stainless Steel (Handle) |
| 26 |
23-8M0021168 |
COLLAR, (9.3 mm) (Handle) |
| 27 |
803994 |
S-LINK (Handle) |
| 28 |
803995 |
SNAP, Link Rod (Handle) |
▶Tools (30 parts)
| Ref |
OEM Part # |
Part Name |
| - |
803799A1 |
IGNITION CHECKER |
| 1 |
91-8539966 |
TOOL |
| 2 |
91-8539968 |
TOOL |
| 3 |
91-80313314 |
SNAP TOOL, Clutch Pin |
| 4 |
23-9528623 |
COLLAR |
| 5 |
25-161773 |
O-RING |
| 6 |
91-80313310 |
MEASURING TOOL SHAFT |
| 7 |
91-8M0050354 |
PULLER TOOL, Bearing |
| 8 |
12-1614011 |
WASHER |
| 9 |
11-85372221 |
NUT |
| 10 |
91-80313312 |
CLAMP TOOL, Backlash Measuring |
| 11 |
10-803134 |
BOLT |
| 12 |
91-80313313 |
PLATE TOOL, Dial Gauge |
| 13 |
91-8M0060180 |
PULLER TOOL, Bearing |
| 14 |
11-85372220 |
NUT |
| 15 |
12-1614010 |
WASHER |
| 16 |
91-8031332 |
FLANGE |
| 17 |
91-8031338 |
STOPPER TOOL, Shaft |
| 18 |
91-8031333 |
SHAFT |
| 19 |
91-8031334 |
GUIDE TOOL |
| 20 |
91-8031335 |
RETAINER TOOL |
| 21 |
91-8031336 |
FLANGE |
| 22 |
91-8031339 |
STOPPER TOOL, Shaft |
| 23 |
91-8031337 |
GUIDE TOOL |
| 24 |
91-85399612 |
WRENCH TOOL |
| 25 |
91-8031331 |
SOCKET TOOL |
| 26 |
91-8M0101491 |
WRENCH TOOL |
| 27 |
91-8539962 |
INSTALL/REMOVER TOOL, Piston Pin |
| 28 |
91-803133 |
INSTALLER TOOL, Piston Ring |
| 29 |
91-804761 |
FLYWHEEL PULLER KIT |
▶Top Cowl (13 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
2189-853778A14 |
TOP COWL ASSEMBLY Comment: (Silver-Electric) |
| 2 |
100-8M0128854 |
TOP COWL ASSEMBLY Comment: (Silver-Manual) |
| 3 |
851851004 |
SEAL, Rubber |
| 4 |
8M0129136 |
CAP, Cowl Comment: (Silver Manual) |
| 5 |
11-400212 |
NUT |
| 6 |
12-953921 |
WASHER |
| 7 |
8518513 |
SEAL (Electric) |
| 8 |
8518841 |
COVER, Fill Comment: (Silver-Electric) |
| 9 |
8151051 |
HINGE (Electric) |
| 10 |
851885 |
PLATE, Spring (Electric) |
| 11 |
10-16223 |
BOLT, (M6 x 14) (Electric) |
| 12 |
11-400212 |
NUT (Electric) |
| 13 |
25-162281 |
SEAL, Rubber (Manual) |
▶Transom and Swivel Brackets(Manual) (52 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
1400-8M0151529 |
CLAMP BRACKET Comment: (Starboard) |
| 2 |
1400-8M0151531 |
CLAMP BRACKET Comment: (Port) |
| 3 |
898101191 |
TILT TUBE |
| 4 |
11-85372214 |
CAP NUT (Handle) |
| 5 |
11-853722029 |
NUT, Nylon |
| 6 |
23-8537435 |
BUSHING |
| 7 |
23-8113681 |
BUSHING |
| 8 |
10-16263009 |
SCREW |
| 9 |
804040001 |
DISTANCE PIECE |
| 10 |
12-16192 |
WASHER |
| 11 |
11-879194337 |
NUT |
| 12 |
10-804042A1 |
THUMB SCREW ASSEMBLY |
| 13 |
12-95379 |
PAD |
| 14 |
804041 |
THRUST ROD |
| 15 |
24-8126455 |
SPRING |
| 16 |
851872 |
CAP |
| 17 |
10-879194274 |
BOLT |
| 18 |
10-8129356 |
BOLT |
| 19 |
851871 |
LOCKING PLATE, Upper |
| 20 |
25-851870 |
GROMMET |
| 21 |
8M0079616 |
RUBBER |
| 22 |
8M0075036 |
SWIVEL TUBE |
| 23 |
162041 |
THRUST PLATE, Upper |
| 24 |
23-8537436 |
BUSHING |
| 25 |
162052 |
FRICTION PLATE |
| 26 |
3407-813029A12 |
SWIVEL BRACKET |
| 27 |
10-4000354 |
SCREW, (M8 x 30) |
| 28 |
24-953831 |
SPRING |
| 29 |
84-898101089 |
GROUND WIRE |
| 30 |
10-8230427 |
BOLT |
| 31 |
97-823912002 |
ANODE |
| 32 |
10-8230427 |
BOLT |
| 33 |
10-162232 |
BOLT |
| 34 |
25-16109003 |
O-RING |
| 35 |
16204004 |
THRUST PLATE |
| 36 |
10-851866012 |
SCREW |
| 37 |
12-953928 |
WASHER |
| 38 |
12-851867 |
WASHER |
| 39 |
8M0075315 |
MOUNT |
| 40 |
12-879194343 |
WASHER |
| 41 |
8M0064214 |
YOKE, Bottom |
| 42 |
53-8537142 |
C-RING |
| 43 |
8537732 |
RUBBER DAMPER |
| 44 |
11-85372218 |
NUT |
| 45 |
851869 |
COVER |
| 46 |
10-167051 |
BOLT, (M6 x 20) |
| 47 |
84-8537405 |
GROUND WIRE |
| 48 |
12-16826 |
WASHER, Stainless Steel |
| 49 |
22-824969 |
FITTING, Grease |
| 50 |
84-898101091 |
CABLE ASSEMBLY, Ground |
| 51 |
97-804043 |
ANODE |
| 52 |
10-8M0147119 |
BOLT |
▶Transom and Swivel Brackets(Power Trim) (50 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
3406-803856001 |
CLAMP BRACKET, Starboard |
| 2 |
3406-803856002 |
CLAMP BRACKET, Port |
| 3 |
853769001 |
BOLT ASSEMBLY |
| 4 |
11-853722029 |
NUT, Nylon |
| 5 |
11-85372214 |
CAP NUT (Handle) |
| 6 |
23-161764 |
BUSHING |
| 7 |
16198003 |
THRUST ROD |
| 8 |
18-8150266 |
COTTER PIN |
| 9 |
10-162635 |
CLAMP SCREW |
| 10 |
12-95379 |
PAD |
| 11 |
1400-8M0122057 |
SWIVEL BRACKET |
| 12 |
8M0075038 |
SWIVEL TUBE |
| 13 |
23-16336007 |
BUSHING |
| 14 |
162052 |
FRICTION PLATE |
| 15 |
803774004 |
THRUST PLATE |
| 16 |
25-16109002 |
O-RING |
| 17 |
8M0079616 |
RUBBER |
| 18 |
10-8129356 |
BOLT |
| 19 |
851871 |
LOCKING PLATE, Upper |
| 20 |
25-851870 |
GROMMET |
| 21 |
851872 |
CAP |
| 22 |
10-879194274 |
BOLT |
| 23 |
22-824969 |
FITTING, Grease |
| 24 |
10-879194254 |
BOLT |
| 25 |
24-953831 |
SPRING |
| 26 |
23-95286027 |
COLLAR |
| 27 |
84-898101089 |
GROUND WIRE |
| 28 |
10-8230427 |
BOLT |
| 29 |
97-823912002 |
ANODE |
| 30 |
10-162232 |
BOLT |
| 31 |
84-8537405 |
GROUND WIRE |
| 32 |
10-802619 |
BOLT |
| 33 |
12-953928 |
WASHER |
| 34 |
12-879194341 |
WASHER |
| 35 |
11-802620 |
NUT |
| 36 |
815094005 |
STOPPER, Tilt |
| 37 |
16208 |
GRIP |
| 38 |
17-95218017 |
PIN, Spring |
| 39 |
24-95383010 |
SPRING |
| 40 |
853786005 |
YOKE, Bottom |
| 41 |
53-804027001 |
C-RING |
| 42 |
8537732 |
RUBBER DAMPER |
| 43 |
10-167051 |
BOLT, (M6 x 20) |
| 44 |
851869 |
COVER |
| 45 |
8M0075315 |
MOUNT |
| 46 |
10-851866012 |
SCREW |
| 47 |
12-953928 |
WASHER |
| 48 |
12-851867 |
WASHER |
| 49 |
12-879194343 |
WASHER |
| 50 |
11-85372218 |
NUT |
100-Hour / Annual Service Checklist
Regular maintenance keeps your Mercury 50MH running reliably season after season. Most of these tasks can be performed with basic tools and the factory service manual.
- Replace water pump impeller and inspect wear plate
- Change engine oil and oil filter (check drain plug washer)
- Replace spark plugs and check ignition timing
- Drain and refill lower unit gear oil; inspect for water contamination
- Inspect fuel lines, primer bulb, and fuel filter for deterioration
- Check and replace sacrificial anodes (zinc or aluminum)
- Inspect propeller for damage; check shaft seal and cotter pin
- Check valve clearance (refer to service manual for specifications)
- Lubricate all grease points (steering, tilt tube, shift linkage)
- Inspect control cables and throttle/shift linkage for smooth operation
-
Pro Tip: Always flush the engine with fresh water after saltwater use — even a quick 10-minute flush significantly extends component life.
-
Pro Tip: Use fuel stabilizer in the tank before winter storage, and fog the cylinders to prevent internal corrosion during extended periods of non-use.
