Mercury 500, 50 (4357640 THRU 5531629) Parts & Diagrams

OEM and aftermarket replacement parts for Mercury 500, 50. Scroll down for exploded parts diagrams (24), specifications, and maintenance reference.

Mercury 500, 50 (4357640 THRU 5531629) Parts & Diagrams

🔎 Mercury 500, 50 Reference Library — Exploded parts diagrams (24 diagrams), specifications, common issues, and maintenance checklist.

The Mercury 500, 50 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 500, 50:

  • 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 500, 50.

BOTTOM COWL ASSEMBLY (24 parts) BOTTOM COWL ASSEMBLY
Ref OEM Part # Part Name
1 2116-7715A4 BOTTOM COWL ASSEMBLY
2 57786 COVER, PLUG-BOTTOM COWL HARNESS HOLE Comment: REMOVE-NOT REQUIRED ON ELECTRIC ENGINE
3 10-45862 SCREW, PLUG COVER TO BOTTOM COWL Comment: REMOVE-NOT REQUIRED ON ELECTRIC ENGINE
4 13-26996 LOCKWASHER, PLUG COVER SCREW Comment: REMOVE-NOT REQUIRED ON ELECTRIC ENGINE
5 12-847883 WASHER, PLUG COVER SCREW Comment: REMOVE-NOT REQUIRED ON ELECTRIC ENGINE
6 16-68169 STUD Comment: BOTTOM COWL TO REAR SUPPORT BRACKET
7 11-35888 NUT, BOTTOM COWL STUD
8 37695 BOOT, CONTROL CABLE
9 37637 BOOT, FUEL CONNECTOR
10 37692 SUPPORT, EXTERNAL WIRING HARNESS-ELECTRIC
11 10-67916 SCREW, HARNESS SUPPORT TO BOTTOM COWL (2")
12 11-8M0207775 NUT, HARNESS SUPPORT SCREW
13 72466 DRIP TRAY
14 45409 SCREW, DRIP TRAY TO BOTTOM COWL (1/2")
15 32-8M0108355 HOSE, TELL TALE HOSE TO BOTTOM COWL (14")
16 69791 NOZZLE, TELL TALE HOSE TO BOTTOM COWL
17 66849 CLAMP, NOZZLE-TELL TALE
18 10-48408 SCREW, NOZZLE CLAMP TO BOTTOM COWL (1/2")
19 23-90882 SLEEVE, TELL TALE NOZZLE
20 54-68424 CLAMP, TELL TALE NOZZLE
21 87-69508A9 STOP SWITCH ASSEMBLY-MANUAL
22 84-62190A8 WIRE ASSEMBLY, STOP SWITCH (ORANGE)
23 11-69844 NUT, STOP SWITCH
24 32-8M0108355 HOSE, DRIP TRAY (7 1/2")
CARBURETOR ASSEMBLY (27 parts) CARBURETOR ASSEMBLY
Ref OEM Part # Part Name
- 27-72486A32 GASKET SET
-- 1399-5137 DIAPHRAGM AND GASKET KIT
1 1367-6517A61 CARBURETOR ASSEMBLY, COMPLETE
4 1395-9296A1 CHOKE SHAFT
6A 814483 BAFFLE, FUEL BOWL
7 1395-9293 FLOAT
9 1399-5127 FUEL BOWL
11 1399-5415 SCREW, FUEL BOWL TO CARBURETOR
13 1395-9022 INLET NEEDLE AND SPRING
14 1399-1655 JET, MAIN FUEL (.055)
15 1399-6249 JET, ECOMONIZER (.096)
16 69692 VENTURI
17 1399-5194 VALVE, CHOKE RELIEF
18 1399-5414 SPRING, CHOKE RELIEF VALVE
19 1399-5197 CHOKE SHUTTER
20 10-23035 SCREW, CHOKE SUTTER TO CHOKE SHAFT
25 1399-5129 BODY, FUEL PUMP
28 1364-5585 BODY, STRAINER
29 1395-808612 SCREW, STRAINER BODY TO CARBURETOR
30 1399-5758 SCREEN, STRAINER
32 99941 COVER, INLET
34 1399-2012 THROTTLE SHAFT
35 8146791 LEVER, THROTTLE (SEE NOTE BELOW)
36 1395-6027 SCREW, THROTTLE LEVER ATTACHING
39 1399-6225 THROTTLE SHUTTER
41 27-757911 GASKET, CARBURETOR FLANGE
42 11-29250 NUT, CARBURETOR MOUNTING STUD
CARBURETOR LINKAGE AND CHOKE SOLENOID (34 parts) CARBURETOR LINKAGE AND CHOKE SOLENOID
Ref OEM Part # Part Name
- 27-72486A32 GASKET SET
1 89-889274 CHOKE SOLENOID-ELECTRIC Comment: ELECTRIC
2 13-26996 LOCKWASHER, CHOKE SOLENOID TERMINAL Comment: ELECTRIC
3 11-45076 NUT, CHOKE SOLENOID TERMINAL Comment: ELECTRIC
4 10-26066 SCREW, CHOKE SOLENOID TO FRONT BRACKET Comment: ELECTRIC
5 13-8M0204647 LOCKWASHER, CHOKE SELENOID SCREW Comment: ELECTRIC
6 11-22053 NUT, CHOKE SOLENOID SCREW Comment: ELECTRIC
7 56074A8 PLUNGER AND LINK ASSEMBLY Comment: CHOKE SELENOID (ELECTRIC)
8 90241 KNOB, CHOKE (MANUAL)
8A 90242A1 KNOB ASSEMBLY (ELECTRIC)
9 10-77137 SCREW, STRAP TO CHOKE KNOB (ELECTRIC)
10 49589 STRAP, CHOKE KNOB TO CHOKE ROD (ELECTRIC)
11 10-69570 SCREW, STRAP TO CHOKE ROD (ELECTRIC)
12 25-20116 GROMMET, FRONT BRACKET (CHOKE KNOB) Comment: (ELECTRIC)
13 85966A1 CHOKE ROD Comment: UNITED STATES 5193258 AND BELOW AUSTRALIA 8057394 AND BELOW BELGIUM 9217255
13A 85966A1 CHOKE ROD ASSEMBLY Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
13B 10-77614A1 SCREW, CHOKE ROD
14 24-60288 SPRING, CHOKE ROD
15 53719A2 PICK-UP BRACKET ASSEMBLY
16 10-53651 SCREW, PICK-UP BRACKET
17 28-89694 INSERT, COUPLING
18 32-8M0108355 FUEL LINE Comment: CARBURETOR TO TEE TO CARBURETOR (2")
19 54-68424 CLAMP, FUEL LINE
20 22-73318 TEE, FUEL LINE
21 32-8M0108355 FUEL LINE, ADAPTOR TO TEE (6")
21A 24-68434 SPRING, FUEL LINE
22 22-63981 FITTING, FUEL LINE TO ADAPTOR
23 22833 ADAPTOR, CHECK UNIT (FUEL LINE)
24 23069 STEM, CHECK UNIT ADAPTOR
25 25-16524 "O" RING, ADAPTOR STEM
26 24-23067T SPRING, ADAPTOR STEM
27 30188 CUP WASHER, ADAPTOR
28 10-67916 SCREW Comment: ADAPTOR TO BOTTOM COWL (2") (ELECTRIC)
29 11-8M0207775 NUT, ADAPTOR SCREW
CLAMP BRACKET ASSEMBLY (45 parts) CLAMP BRACKET ASSEMBLY
Ref OEM Part # Part Name
- 27-72486A32 GASKET SET
1 1440-8394A1 CLAMP BRACKET ASSEMBLY Comment: WASHER ATTACHED WITH A SCREW
2 10-78492A1 THUMB SCREW ASSEMBLY Comment: WASHER ATTACHED WITH A SCREW
2A 12-78493 WASHER, THUMB SCREW Comment: WASHER ATTACHED WITH A SCREW
2B 10-78495 SCREW, WASHER TO THUMB SCREW Comment: WASHER ATTACHED WITH A SCREW
3 75043 CAP, THUMB SCREW Comment: WASHER ATTACHED WITH A SCREW
4 8M0041936 TUBE, TILT Comment: CLAMP BRACKET TO SWIVEL BRACKET
5 12-52864 WASHER, CLAMP BRACKET TILT TUBE
6 11-858869 NUT, TILT TUBE FASTENING
7 53078 CAP, PLASTIC - TILT TUBE
8 23-59624 SPACER, CLAMP BRACKET STUD
9 16-59625 STUD, CLAMP BRACKET
10 13-8M0204647 LOCKWASHER, CLAMP BRACKET STUD
11 11-28770 NUT, CLAMP BRACKET STUD
12 17-8M0026068 TILT LOCK PIN ASSEMBLY
13 32-28052 SLEEVE, RUBBER - TILT LOCK PIN BUMPER
14 10-68299 BOLT, CLAMP BRACKET TO BOAT TRANSOM (3")
15 12-68300 WASHER, CLAMP BRACKET BOLT
16 11-82670912 NUT, CLAMP BRACKET BOLT
17 55-28416 PIN, UPPER SHOCK MOUNTING
18 23-73203 BUSHING, CLAMP BRACKET
19 76386 TILT LOCK ASSEMBLY, STARBOARD
20 76385T TILT LOCK ASSEMBLY, PORT
21 47802 TUBE, TILT LOCK Comment: UNITED STATES 5193258 AND BELOW AUSTRALIA 8057394 AND BELOW BELGIUM 9217255 AND BELOW CANADA 7116222 AND BELOW
22 23-71574 BUSHING, TILT LOCK TUBE
23 13-69150 WASHER, WAVE - TILT LOCK TUBE
24 79659 COUPLING, TILT LOCK
25 12-76388 WASHER, TILT LOCK
26 25-627021 "O" RING, TILT LOCK
27 18-47959 COTTER PIN, TILT LOCK TUBE
28 55-696531 PIN, LOWER SHOCK MOUNTING
29 24-78203A2 SPRING, REVERSE LOCK TENSION Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
30 87432 REVERSE LOCK ASSEMBLY
31 56349 SHAFT, REVERSE LOCK PIVOT
32 23-69132 BUSHING, REVERSE PIVOT SHAFT
33 18-45882 COTTER PIN, REVERSE LOCK TO SHAFT
34 12-28196 WASHER, UPPER BUSHING RETAINER (INNER)
35 12-59378 WASHER, LOWER BUSHING RETAINER (INNER)
36 55-58780A7 SHOCK ABSORBER
37 23-32171 BUSHING, RUBBER - SHOCK ABSORBER (UPPER)
38 23-28198 BUSHING, RUBBER - SHOCK ABSORBER (LOWER)
39 12-69374 WASHER Comment: UPPER AND LOWER BUSHING RETAINER (OUTER) UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELIGUM 9136250 AND UP CANADA 7088598 AND UP
40 10-69375 SCREW Comment: UPPER AND LOWER SHOCK MOUNTING PIN (5/8") UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELIGUM 9136250 AND UP CANADA 7088598 AND UP
41 70679 COVER Comment: UPPER AND LOWER SHOCK MOUNTING PIN UNITED STATES 4357640 THRU 4576236 AUSTRALIA 8030090 THRU 8042649 BELGIUM 9107214 THRU 9136249 CANADA 7068998 THRU 7088597
42 10-37655 SCREW Comment: COVER TO SHOCK MOUNTING SCREWS (1/2") UNITED STATES 4357640 THRU 4576236 AUSTRALIA 8030090 THRU 8042649 BELGIUM 9107214 THRU 9136249 CANADA 7068998 THRU 7088597
COWLING AND FRONT COVER (14 parts) COWLING AND FRONT COVER
Ref OEM Part # Part Name
-- 92-86166Q1 GLUE (BLANKET ADHESIVE)
1 2182-7927A5 COWL FRONT COVER ASSEMBLY Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
2 56848 KNOB, COWL FRONT COVER FASTENING
3 12-30771 WASHER, COVER FASTENING KNOB
4 12-59572 WASHER, COVER FASTENING KNOB
5 24-30772 SPRING, TENSION-COVER FASTENING KNOB
6 17-29077 PIN, ROLL-TENSION SPRING TO KNOB
7 38674 BLANKET, SOUNG ABSORBING
8 31095 SEAL, SOUND-LOWER SECTION
9 38133 SEAL, SOUND-UPPER SECTION
10 2118-3247A3 WRAP AROUND COWL ASSEMBLY
11 46785A1 COWL LATCH ASSEMBLY
12 30413 HOOK, COWL LATCH FASTENING
13 37794 BLANKET, SOUND ABSORBING
CRANKSHAFT, PISTON AND CONNECTING ROD (30 parts) CRANKSHAFT, PISTON AND CONNECTING ROD
Ref OEM Part # Part Name
- 27-72486A32 GASKET SET
1 459-9075T CRANKSHAFT Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
2 60834A3 CARRIER ASSEMBLY, "O" RING Comment: METAL SEAL CARRIER PRESSED IN CRANKSHAFT
3 64254001 "O" RING, CARRIER Comment: METAL SEAL CARRIER PRESSED IN CRANKSHAFT
4 547-7060A2 CENTER MAIN BEARING ASSEMBLY Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
5 17-20032 DOWEL PIN, CENTER MAIN BEARING Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
6 29-714221 BEARING, NEEDL Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
7 26113T RACE, OUTER Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
8 53-26933 RING, SNAP-OUTER RACE CLAMPING Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
9 10-8M0214943 SCREW, CENTER MAIN BEARING CLAMPING (1") Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
10 11-8M0207775 NUT,CENTER MAIN BEARING SCREW Comment: UNITED STATES 5193258 AND BELOW AUSTRALIA 8057394 AND BELOW BELGIUM 9217255 AND BELOW CANADA 7116222 AND BELOW
11 17-27732 DOWEL PIN (STEPPED) Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
12 534-3267T25 MAIN BEARING ASSEMBLY (VALVE TYPE)
13 17-20032 DOWEL PIN, MAIN BEARING
14 17-65855 DOWEL PIN, REED LOCATING
15 10-45775 SCREW, MAIN BEARING CLAMPING (9/16")
16 11-45774 NUT, MAIN BEARING CLAMPING SCREW
17 34-88498A1 REED SET, MATCHED
18 34-822839 REED STOP Comment: UNITED STATES 4962056 AND UP AUSTRALIA 8053230 AND UP BELGIUM 9195686 AND UP CANADA 7115573 AND UP
19 10-77280 SCREW, REED STOP MOUNTING (9/16")
20 11-20110 NUT,REED STOP MOUNTING SCREW
21 780-9229A7 PISTON AND PISTON PIN ASSEMBLY
22 40-828119 LOCK RING, PISTON PIN
23 39-27841A12 RING, PISTON
24 632-7621A3 CONNECTING ROD AND CAP ASSEMBLY
25 10-45379 SCREW, CAP TO CONNECTING ROD
26 11-20061 NUT, CONNECTING ROD SCREW
27 29-20046T BEARING, NEEDLE-CRANKPIN
28 29-20063 BEARING, NEEDLE-PISTON PIN
29 12-47275 WASHER, NEEDLE LOCATING
CYLINDER BLOCK AND CRANKCASE ASSEMBLY (28 parts) CYLINDER BLOCK AND CRANKCASE ASSEMBLY
Ref OEM Part # Part Name
1 863-8981A6 CYLINGER BLOCK AND CRANKCASE ASS'Y Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
2 72038 BRACKET, STARTER MOTOR (UPPER)
3 10-73278 SCREW, BRACKET TO CRANKCASE (1 5/8")
4 13-8M0204647 LOCKWASHER, BRACKET SCREW
5 76867 COVER, STARTER MOTOR (LOWER)
6 10-73279 SCREW, COVER TO CRANKCASE (1 7/8")
7 46933A3 CABLE ASSEMBLY, GROUNG
8 17-20032 DOWEL PIN, CYLINDER BLOCK TO MAIN HEARING
9 17-20323 DOWEL PIN, CENTER MAIN BEARING Comment: UNITED STATES 5193258 AND BELOW AUSTRALIA 8057394 AND BELOW BELGIUM 9217255 AND BELOW CANADA 7116222 AND BELOW
10 16-64936 STUD, CARBURETOR MOUNTING (1 1/4")
11 16-68165 STUD Comment: CRANKCASE TO DRIVE SHAFT HOUSING (1 5/8")
12 17-43044 DOWEL PIN, CRANKCASE TO CYLINDER BLOCK
13 16-68168 STUD Comment: CYL. BLOCK TO DRIVE SHAFT HOUSING (3 11/16")
14 16-68166 STUD Comment: CYL. BLOCK TO DRIVE SHAFT HOUSING (2 1/8")
15 16-68167 STUD Comment: CYL. BLOCK TO DRIVE SHAFT HOUSING (1 9/16")
16 22-291112 CONNECTOR, TELL TALE-CYLINDER BLOCK Comment: UNITED STATES 4962055 AND BELOW AUSTRALIA 8053229 AND BELOW BELGIUM 9195685 AND BELOW CANADA 7115572 AND BELOW
16A 22-782792 ELBOW, TELL TALE-CYLINGER BLOCK Comment: UNITED STATES 4962056 AND UP AUSTRALIA 8053230 AND UP BELGIUM 9195686 AND UP CANADA 7115573 AND UP
17 10-73275 SCREW, CRANKCASE TO CYLINDER BLOCK (2 7/8")
18 12-8M0042642 WASHER, CRANKCASE SCREW
19 10-98260 SCREW, MAIN BEARING LOCKING (5/8")
21 32-8M0108355 TUBE, BALANCE-MAIN BEARING (5 1/2")
22 22-996642 ELBOW, BALANCE TUBE TO CYLINDER BLOCK
23 21-428671 CHECK VALVE, BLEED HOSE (LOWER)
24 32-9938779 HOSSE, CYLINDER BLEED (11")
25 22-56759 CONNECTOR, CYLINDER BLEED HOSE (UPPER)
26 99156 INDICATOR, TIMING Comment: ELECTRIC
27 10-39349 SCREW, INDICATOR TO CRANKCASE (3/4") Comment: ELECTRIC
28 13-8M0204647 LOCKWASHER, INDICATOR SCREW Comment: ELECTRIC
DRIVE SHAFT HOUSING ASSEMBLY (50 parts) DRIVE SHAFT HOUSING ASSEMBLY
Ref OEM Part # Part Name
- 27-72486A32 GASKET SET
1 1593-7513A12 DRIVE SHAFT HOUSING ASSEMBLY (LONG SHAFT) Comment: UNITED STATES 4962056 AND UP AUSTRALIA 8053230 AND UP BELGIUM 9195686 AND UP CANADA 7115573 AND UP
2 19-64649 PLUG, PLASTIC - TRIM TAB SCREW HOLE
3 16-8M0022145 STUD Comment: DRIVE SHAFT HOUSING TO GEAR HOUSING (1 3/4")
4 16-57935 STUD Comment: DRIVE SHAFT HOUSING TO GEAR HOUSING (3")
5 11-8M0204653 NUT Comment: GEAR HOUSING TO DRIVE SHAFT HOUSING STUDS (7/16")
6 12-65791 WASHER, GEAR HOUSING TO DRIVE SHAFT HOUSING STUDS (7/16")
7 47836 ROD, PUSH - REVERSE LOCK (LONG SHAFT)
8 11-28770 NUT, JAM - PUSH ROD
9 47837 ROD END, PUSH ROD
10 24-78203A2 PIN, REVERSE LOCK LEVER Comment: UNITED STATES 5193258 AND BELOW AUSTRALIA 8057394 AND BELOW BELGIUM 9217255 AND BELOW CANADA 7116222 AND BELOW
11 18-25191 COTTER PIN, PUSH ROD TO REVERSE LOCK
12 933361 GUIDE, PUSH ROD Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
13 35474T COVER, LOWER MOUNT CLAMP
14 10-29722 SCREW, COVER TO LOWER MOUNT CLAMP
15 11-35521 NUT, LOWER MOUNT CLAMP COVER
16 69592F1 CLAMP, LOWER MOUNT TO DRIVE SHAFT HOUSING
17 10-29256 SCREW Comment: LOWER MOUNT CLAMP/DRIVE SHAFT HOUSING
18 24-35522 SPRING, TENSION - LOWER MOUNT CLAMP
19 75304T1 MOUNT, RUBBER - LOWER
20 25067 BUMPER, RUBBER - LOWER MOUNT SCREW
21 10-75284 SCREW, LOWER MOUNT SCREW
22 12-28051 WASHER, LOWER MOUNT SCREW
23 12-28053 WASHER, RUBBER - LOWER MOUNT SCREW
24 12-30119 WASHER, LOWER MOUNT SCREW
25 11-25096 NUT, LOWER MOUNT SCREW
26 75305 MOUNT, RUBBER - UPPER
26A 25-65936 "O" RING, UPPER MOUNT Comment: UNITED STATES 4962055 AND BELOW AUSTRALIA 8053229 AND BELOW BELGIUM 9195685 AND BELOW CANADA 7115572 AND BELOW
27 96401 SEAL, BELLOWS - UPPER MOUNT Comment: UNITED STATES 4962056 AND UP AUSTRALIA 8053230 AND UP BELGIUM 9195686 AND UP CANADA 7115573 AND UP
28 79680A1 COVER, UPPER MOUNT - OUTSIDE HALF
29 79681 COVER, UPPER MOUNT - INSIDE HALF
30 10-69029 SCREW, UPPER MOUNT COVER - REAR (1 3/4")
31 10-67916 SCREW, UPPER MOUNT COVER - FRONT (2")
31A 12-8M0204649 WASHER, UPPER MOUNT COVER SCREW
32 11-36069 NUT, UPPER MOUNT COVER SCREW
33 12-27727 WASHER, UPPER MOUNT BOLT (37/64 ID)
34 12-66966 WASHER, RUBBER - UPPER MOUNT BOLT
35 12-30519 WASHER, UPPER MOUNT BOLT (3/8 ID)
36 11-23161 NUT, UPPER MOUNT BOLT
37 27-385011 GASKET Comment: EXHAUST EXTENSION PLATE TO DRIVE SHAFT HOUSING
38 11-64809 NUT Comment: POWERHEAD TO DRIVE SHAFT HOUSING STUDS (5/16")
39 695441 TUBE, EXHAUST (LONG SHAFT)
40 32-45679 TUBE, WATER INLET (LONG SHAFT)
41 38157 SEAL, TRIM COVER TO DRIVE SHAFT HOUSING
42 38154 STRIP, RETAINING - TRIM COVER SEAL (SIDE)
43 38158 STRIP, RETAINING - TRIM COVER SEAL (REAR)
44 10-48408 SCREW Comment: RETAINING STRIP TO DRIVE SHAFT HOUSING (SELF TAPPING)
45 37687 COVER, TRIM - DRIVE SHAFT HOUSING
46 10-57807 SCREW, TRIM COVER TO DRIVE SHAFT HOUSING
47 25-92012 GROMMET, TRIM COVER SCREW
ELECTRIC COMPONENTS (26 parts) ELECTRIC COMPONENTS
Ref OEM Part # Part Name
1 8M0058226 RECTIFIER ASSEMBLY
2 11-45076 NUT, RECTIFIER TERMINAL
3 10-20411 SCSREW, RECTIFIER TO SWITCH BOX PLATE (5/8")
4 50-898265005 STARTER MOTOR ASSEMBLY
5 8M0043376 STOP, RUBBER-STARTER MOTOR
6 23-8M0034918 COLLAR, RUBBER-STARTER MOTOR MOUNT
7 23-56774 SPACER, COLLAR TO BRACKET
8 84-93389A1 WIRE ASSEMBLY Comment: STARTER MOTOR TO SOLENOID (YELLOW)
9 11-64015 NUT, WIRE TO STARTER MOTOR (1/4-20)
10 84-93388A14 WIRE ASSEMBLY Comment: STARTER MOTOR TO BRACKET (BLACK)
11 10-69035 SCREW, WIRE TO STARTER MOTOR (5/8")
12 89-853654A1 STARTER SOLENOID
13 10,13-26996 LOCKWASHER, SOLENOID TERMINAL
14 10,11-45076 NUT, SOLENOID TERMINAL
15 13-8M0204647 LOCKWASHER, SOLENOID TERMINAL (5/16")
16 11-21908 NUT, SOLENOID TERMINAL (5/16")
17 46265 BOOT, TERMINAL-STARTER SOLENOID
18 10-98253 SCREW, SELENOID TO SUPPORT BRACHET (1/2")
19 13-26992 WASHER, STARTER SOLENOID SCREW
20 84-73447A1 WIRING HARNESS (INTERNAL)
21 24-28975 SPRING, GARTER-INTERNAL WIRING HARNESS
22 54-76368 CLAMP, WIRING HARNESS
23 10-45862 SCREW Comment: WIRING HARNESS CLAMP TO BOTTOM COWL (7/8")
24 13-26996 LOCKWASHER, WIRING HARNESS CLAMP SCREW
25 12-847883 WASHER, WIRING HARNESS CLAMP SCREW
26 61990 STA-STRAP, WIRING HARNESS
END CAPS, MANIFOLD AND EXHAUST COVERS (33 parts) END CAPS, MANIFOLD AND EXHAUST COVERS
Ref OEM Part # Part Name
- 27-72486A32 GASKET SET
1 863-8981A6 CYLINDER BLOCK AND CRANKCASE ASS'Y Comment: SEE "CYLINDER BLOCK AND CRANKCASE ASS'Y" FOR BREAKDOWN UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
2 1160-5826A2 END CAP ASSEMBLY, UPPER
3 26-41953 OIL SEAL
4 25-20081 "O" RING, UPPER END CAP
5 30-63742T BALL BEARING, UPPER END CAP
6 15-72538A1 SHIM Comment: UPPER END CAP TO CYL. BLOCK/CRANKCASE (.005-10)
7 10-824941 SCREW, UPPER END CAP MOUNTING (3/4")
8 90435 MOUNT, RUBBER-CRANKCASE
9 11-8M0207775 NUT, CRANKCASE RUBBER MOUNT
10 84-65773A5 GROUND STRAP, CRANKCASE MOUNT
11 1158-6635T1 END CAP ASSEMBLY, LOWER Comment: UNITED STATES 4962056 AND UP AUSTRALIA 8053230 AND UP BELGIUM 9195686 AND UP CANADA 7115573 AND UP
13 26-41953 OIL SEAL, LOWER END CAP
14 25-20081 "O" RING, LOWER END CAP
15 30-63742T BALL BEARING, LOWER END CAP
16 15-20085A1 SHIM Comment: LOWER END CAP TO CRANKCASE/CYL, BLOCK (.005-10)
17 10-29256 SCREW, LOWER END CAP MOUNTING (7/8")
18 27-854913 GASKET Comment: CYLINDER BLOCK TO BAFFLE PLATE
19 90421T01 PLATE, BAFFLE-EXHAUST MANIFOLD
20 27-854924 GASKET, BAFFLE PLATE TO EXHAUST COVER
21 77381 COVER, EXHAUST MANIFOLD Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
22 10-38837 SCREW Comment: MANIFOLD COVER TO CYLINGER BLOCK (1 1/8")
23 10-73281 SCREW Comment: ADJUSTING-ECHAUST MANIFOLD COVER (1 3/4")
24 11-20890 NUT, ADJUSTING SCREW
25 26852 CAP, ADJUSTING SCREW
26 1017-7054A1 COVER ASSEMBLY, CYLINDER BLOCK Comment: UNITED STATES 4962056 AND UP AUSTRALIA 8053230 AND UP BELGIUM 9195686 AND UP CANADA 7115573 AND UP
27 22-328022 PLUG, PIPE-CYLINDER BLOCK COVER
28 27-85487 GASKET, CYLINDER BLOCK COVER
29 10-8M0214943 SCREW, CYLINDER BLOCK COVER (1")
31 18827A1 COVER ASSEMBLY, TRANSFER PORT Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
33 18827A1 COVER, TRANSFER PORT Comment: UNITED STATES 4357640 THRU 4576236 AUSTRALIA 8030090 THRU 8042649 BELGIUM 9107214 THRU 9136249 CANADA 7068998 THRU 7088597
34 27-279361 GASKET, TRANSFER PORT COVER
35 10-20540 SCREW, TRANSFER PORT COVER MOUNTING (5/8")
EXHAUST EXTENSION PLATE AND SHIFT LINKAGE (35 parts) EXHAUST EXTENSION PLATE AND SHIFT LINKAGE
Ref OEM Part # Part Name
- 27-72486A32 GASKET SET
1 42819A2 PLATE ASSEMBLY, EXHAUST EXTENSION Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
2 23-27132 BUSHING, EXHAUST EXTENSION PLATE
3 12-38453 WASHER, NYLON-WATER INLET TUBE
4 26-38452 SEAL, RUBBER-WATER TUBE
5 38500 RETAINER, WATER TUBE SEAL Comment: UNITED STATES 5193258 AND BELOW AUSTRALIA 8057394 AND BELOW BELGIUM 9217255 AND BELOW CANADA 7116222 AND BELOW
6 10-69069 SCREW, RETAINER TO PLATE (3/4")
7 79799 HOUSING, WATER INLET TUBE SEAL Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
8 27-797971 GASKET, HOUSING
9 10-79798 SCREW, HOUSING TO EXHAUST PLATE (1 3/8")
10 27-796501 GASKET Comment: POWERHEAD TO EXHAUST EXTENSION PLATE
11 38156 SEAL, RUBBER - EHAUST EXTENSION PLATE
12 99136 STRIP, RUBBER SEAL RETAINING
13 10-37571 SCREW Comment: RETAINING STRIP TO EXHAUST EXTENSION PLATE (1/2")
14 27-385011 GASKET Comment: EXHAUST EXTENSION PLATE TO DRIVE SHAFT HOUSING
15 59037A2 LEVER, THROTTLE AND SHIFT CABLES
16 24-38005 SPRING, COMPRESSION - QUICK DISCONNECT LEVER
17 23-37927 BUSHING, NYLON - QUICK DISCONNECT LEVER
18 17-239281 PIN, ROLL - QUICK DISCONNECT LEVER
19 37926 RETAINER Comment: NYLON BEARING TO EXHAUST EXTENSION PLATE
20 10-37923 SCREW Comment: RETAINER TO EXHAUST EXTENSION PLATE (1 1/2")
21 46933A1 GROUND STRAP ASSEMBLY Comment: CRANKCASE TO COWL (3 5/8")
22 46933A2 GROUND STRAP ASSEMBLY Comment: HOUSING TO COWL (3 3/8")
23 10-62568 SCREW, GROUND STRAP (3/8" SELF TAPPING)
24 76632A4 SHIFT SHAFT ASSEMBLY, UPPER (LONG SHAFT)
25 8M0221994 BARREL, NYLON - UPPER SHIFT SHAFT
26 74739A3 ACTUATOR ASSEMBLY, SHIFT CONTROL
27 24-37934 SPRING, SHIFT CABLE
28 10-38069 SCREW, SPRING TO ACTUATOR
29 37932 BEARING, NYLON - SHIFT CONTROL ACTUATOR
30 10-36137 SCREW Comment: BEARING TO SHIFT CONTROL ACTUATOR (1")
31 13-21272 LOCKWASHER, BEARING SCREW
32 37935 RAIL, SHIFT CONTROL BEARING
33 10-69028 SCREW Comment: RAIL TO EXHAUST MANIFOLD COVER (3/4")
34 13-26992 LOCKWASHER, RAIL SCREW
FLYWHEEL, IGNITION COIL AND SWITCH BOX (29 parts) FLYWHEEL, IGNITION COIL AND SWITCH BOX
Ref OEM Part # Part Name
1 11-8M0214915 NUT, FLYWHEEL
2 12-33001 WASHER, FLYWHEEL NUT
3 28-20094 KEY, FLYWHEEL DRIVE
4 248-8722A17 FLYWHEEL ASSEMBLY (ELECTRIC)
5 10-32417 SCREW, FLEXIBLE PLATE TO FLYWHEEL (9/16)
6 50-88755 RATCHET, FLYWHEEL-MANUAL
7 10-68997 SCREW, RATCHT TO FLYWHEEL (5/8")
8 398-832075A20 STATOR (ELECTRIC)
9 10-F2211 SCREW, STATOR TO UPPER END CAP (5/8")
10 96452A4 TRIGGER ASSEMBLY Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
11 54-61001 "J" CLIP, TRIGGER LEADS TO CARBURETOR STUD
12 61990 STA-STRAP, TRIGGER LEADS
13 84-88721A1 HARNESS, SWITCH BOX TO IGNITION COIL
14 339-832757A4 IGNITION COIL ASSEMBLY Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
15 11-45076 NUT, IGNITION COIL TERMINALS
16 84-60466A15 GROUNG WIRE, COIL TO SWITCH BOX
17 76254 COVER, IGNITION COIL Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
18 10-76502 SCREW, COIL COVER (10-32 X 1 7/8")
19 84-813715A1 LEAD ASSEMBLY, SPARK PLUG
20 332-2854T01 BOOT, IGNITION COIL END
21 33-896329833 SPARK PLUG (AC#V40FFK) Comment: BELGIUM AND CANADA USE C-33-75739 SPARK PLUG
22 332-5772A7 SWITCH BOX ASSEMBLY
23 54-8M0024808 "J" CLIP, SWITCH BOX LEADS
24 10-20619 SCREW Comment: SWITCH BOX AND "J" CLIP TO PLATE (1 3/8")
25 72030 PLATE, SWITCH BOX
26 25-57009001 GROMMET, SWITCH BOX PLATE
27 12-35280 WASHER, SWITCH BOX PLATE SCREW
28 10-61551 SCREW Comment: SWITCH BOX PLATE TO CYLINDER BLOCK (1/2")
29 11-45076 NUT, SWITCH BOX TERMINALS
GEAR HOUSING ASSEMBLY, COMPLETE (SERIAL GROUP NO. 6)(PAGE 1) (48 parts) GEAR HOUSING ASSEMBLY, COMPLETE (SERIAL GROUP NO. 6)(PAGE 1)
Ref OEM Part # Part Name
- 27-72486A32 GASKET SET
1 1643-6038A6 GEAR HOUSING ASSEMBLY
2 17-8M0084726 PIN, DOWEL - GEAR HOUSING
3 16-33778 STUD Comment: WATER PUMP BODY/BASE TO GEAR HOUSING (2 5/8")
4 16-8M0034453 STUD Comment: GEAR HOUSING TO DRIVE SHAFT HOUSING (2 3/16")
5 31-62091T BEARING, ROLLER - DRIVE SHAFT
6 72849A1 SCREEN, WATER INTAKE - PORT
7 10-36070 SCREW Comment: WATER INTAKE SCREEN TO GEAR HOUSING (1 1/4")
8 11-859124 NUT, WATER INTAKE SCREEN SCREW
9 92815 PLATE, SUPPORT - EXHAUST TUBE SEAL
10 37721001 SEAL, EXHAUST TUBE
11 43-55607 GEAR, PINION - DRIVE SHAFT
12 11-55910 NUT, PINION GEAR TO DRIVE SHAFT
13 27-32771 GASKET, WATER PUMP BASE TO GEAR HOUSING
14 25-26855 "O" RING, WATER PUMP BASE
15 46-73640T01 WATER PUMP BASE ASSEMBLY
16 26-79831 OIL SEAL, WATER PUMP BASE
17 26-90562 OIL SEAL, WATER PUMP BASE
18 17-35973 DOWEL PIN, WATER PUMP BASE TO WATER PUMP BODY
19 27-19553 GASKET Comment: LOWER - WATER PUMP BASE TO FACE PLATE
20 32768 PLATE FACE Comment: WATER PUMP BASE TO WATER PUMP BODY
21 27-19551 GASKET UPPER Comment: FACE PLATE TO WATER PUMP BODY
22 47-89983T IMPELLER, WATER PUMP
23 28-8M0032837 KEY, IMPELLER DRIVE
24 46-77822A1 WATER PUMP BODY ASSEMBLY
25 48753 INSERT, WATER PUMP BODY
26 12-8M0204649 WASHER, WATER PUMP BODY AND BASE STUDS
27 11-36069 NUT, WATER PUMP BODY AND BASE STUDS
28 26-38452 SEAL, WATER PUMP BODY TO WATER TUBE
29 12-38453 WASHER, CUPPED - WATER TUBE SEAL
30 25-20273 RING, RUBBER - CENTRIFUGAL SLINGER
31 10-79953Q04 SCREW, GREASE FILLER AND VENT HOLE
32 12-191833 WASHER, GREASE FILLER AND VENT HOLE SCREW
35 76063A1 SHAFT ASSEMBLY, SHIFT - LOWER Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
36 53-29641 CLIP, RETAINING - SHIFT SHAFT
37 25-25439 "O" RING, SHIFT SHAFT BUSHING
38 23-77631A2 BUSHING ASSEMBLY, SHIFT SHAFT
39 26-24590 OIL SEAL, SHIFT SHAFT BUSING (LOWER)
40 26-892361 OIL SEAL, SHIFT SHAFT (UPPER)
41 12-31266 WASHER, RUBBER - SHIFT SHAFT BUSHING
42 78036 BASE Comment: LOWER - REVERSE LOCKING - NOT PART OF GEAR HOUSING
43 43308T1 CAM, REVERSE LOCKING Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
44 45-76088A2 DRIVE SHAFT ASSEMBLY (LONG SHAFT)
45 24-20254 SPRING, COMPRESSION - DRIVE SHAFT
46 12-30515 PIN, DRIVE SHAFT
47 88181 SLEEVE, LUBRICTAION - DRIVE SHAFT
48 15-20929A1 SHIM, BEARING TI GEAR HOUSING (.OO2-3-5-10)
49 31-38146A1 ROLLER BEARING ASSEMBLY Comment: TAPERED - DRIVE SHAFT
GEAR HOUSING ASSEMBLY, COMPLETE (SERIAL GROUP NO. 6)(PAGE 2) (37 parts) GEAR HOUSING ASSEMBLY, COMPLETE (SERIAL GROUP NO. 6)(PAGE 2)
Ref OEM Part # Part Name
- 27-72486A32 GASKET SET
1 1643-6038A6 GEAR HOUSING ASSEMBLY Comment: (SEE "GEAR HOUSING ASSEMBLY, COMPLETE" FOR BREAKDOWN
50 760394 CAM, SHIFT Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
51 38441 FOLLOWER, CAM
52 20843 SLIDE, CROSS PIN
53 24-39845 SPRING, COMPRESSION - CAM FOLLOWER
54 15-38374A1 SHIM. BEARING CUP TO GEAR HOUSING (.002-3-5-10)
55 31-38356A1 TAPERED ROLLER BEARING ASSEMBLY
56 31-21739 BEARING, ROLLER - FORWARD GEAR
57 43-55608T4 FORWARD GEAR
58 52-92911T RATCHET, SLIDING CLUTCH
59 17-8M0020942 PIN, CROSS - RATCHET TO PROPELLER SHAFT
60 24-38114 SPRING, RETAINING - CROSS PIN
61 44-75365 SHAFT PROPELLER Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
62 43-79158T REVERSE GEAR
63 15-20927A1 SHIM, THRUST WASHER TO GEAR HSG (.002-3-5-10)
64 12-32004 WASHER, THRUST - REVERSE GEAR
65 30-20839T BEARING, BALL - REVERSE GEAR
66 25-31986 "O RING, BEARING CARRIER
67 69386T1 BEARING CARRIER ASSEMBLY
68 31-21700 BEARING, ROLLER - BEARING CARRIER
69 26-8M0205511 OIL SEAL, BEARING CARRIER (DOUBLE LIP)
70 26-8M0203757 OIL SEAL, LINE CUTTER
71 28-30281 KEY, LOCATING - BEARING CARRIER
72 14-53012 TAB WASHER, GEAR HOUSING COVER
73 11-87763 COVER, GEAR HOUSING
74 97-31640Q4 TRIM TAB ASSEMBLY, GEAR HOUSING
75 10-66024 SCREW, TRIM TAB TO GEAR HOUSING (1 3/4")
76 12-8M0214963 WASHER, DRIVE SHAFT HOUSING STUD (3/8")
77 11-8M0204726 NUT Comment: DRIVE SHAFT HOUSING TO GEAR HOUSING (3/8")
78 12-65791 WASHER, DRIVE SHAFT HOUSING STUD (7/16")
79 11-8M0204653 NUT Comment: DRIVE SHAFT HOUSING TO GEAR HOUSING (7/16")
80 73345A1 THRUST HUB, FRONT Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
81 62124A1 THRUST HUB ASSEMBLY, REAR
82 12-31992 WASHER, CUPPED - THRUST HUB
83 14-8M0214942 TAB WASHER, PROPELLER
84 11-69578Q1 NUT, PROPELLER
GEAR HOUSING ASSEMBLY, COMPLETE (SERIAL GROUP NO. 7)(PAGE 1) (50 parts) GEAR HOUSING ASSEMBLY, COMPLETE (SERIAL GROUP NO. 7)(PAGE 1)
Ref OEM Part # Part Name
- 26-79831A1 SEAL KIT
1 1643-9539T1 GEAR HOUSING ASSEMBLY Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
1A 22-85822A10 CONNECTOR ASSEMBLY, SPEEDOMETER
2 17-8M0084726 PIN, DOWEL - GEAR HOUSING
3 16-33778 STUD Comment: WATER PUMP BODY/BASE TO GEAR HSG (2 5/8")
4 16-8M0034453 STUD, GEAR HOUISNG TO DRIVE SHAFT HOUSING
5 31-62091T BEARING, ROLLER - DRIVE SHAFT
6 72849A1 SCREEN ASSEMBLY Comment: WATER INTAKE - STARBOARD AND PORT
7 10-36070 SCREW Comment: WATER INTAKE SCREEN TO GEAR HOUSING
8 11-859124 NUT, WATER INTAKE SCREEN SCREW
9 92815 PLATE, SUPPORT - EXHAUST TUBE
10 37721001 SEAL, EXHAUST TUBE
11 43-55607 GEAR, PINION - DRIVE SHAFT
12 11-55910 NUT, PINION GEAR TO DRIVE SHAFT
13 27-19552 GASKET, WATER PUMP BASE TO GEAR HOUSING
14 25-26722 "O" RING, WATER PUMP BASE
15 46-77177A1 WATER PUMP BASE ASSEMBLY
16 26-79831 OIL SEAL, WATER PUMP BASE
17 26-90562 OIL SEAL, WATER PUMP BASE
18 17-35973 DOWEL PIN Comment: WATER PUMP BASE TO WATER PUMP BODY
19 27-19553 GASKET, LOWER Comment: WATER PUMP BASE TO FACE PLATE
20 32768 PLATE, FACE Comment: WATER PUMP BASE TO WATER PUMP BODY
21 27-19551 GASKET, UPPER Comment: FACE PLATE TO WATER PUMP BODY
22 47-89983T IMPELLER, WATER PUMP
23 28-8M0032837 KEY, IMPELLER DRIVE
24 46-77822A1 WATER PUMP BODY ASSEMBLY
25 48753 INSERT, WATER PUMP BODY
26 12-8M0204649 WASHER, WATER PUMP BODY AND BASE STUDS
27 11-35888 NUT, WATER PUMP BODY AND BASE STUDS
28 26-38452 SEAL Comment: RUBBER - WATER INLET TUBE (WATER PUMP BODY)
29 12-38453 WASHER, NYLON - WATER PUMP BODY
30 25-20273 RING Comment: RUBBER - CENTRIFUGAL SLINGER (DRIVE SHAFT)
31 22-8M0058389 SCREW, DRAIN (MAGNETIC)
32 12-191833 WASHER,GREASE FILLER AND DRAIN SCREW
35 76063A1 SHAFT ASSEMBLY, SHIFT - LOWER
36 53-29641 CLIP, RETAINING - SHIFT SHAFT
37 25-25439 "O" RING, SHIFT SHAFT BUSHING
38 23-77631A2 BUSHING ASSEMBLY, SHIFT SHAFT
39 26-8M0204708 OIL SEAL, SHIFT SHAFT BUSHING
41 12-77674 WASHER, RUBBER - SHIFT SHAFT BUSHING
42 78036 BASE, REVERSE LOCKING
43 43308T1 CAM, REVERSE LOCKING
44 45-77389A2 DRIVE SHAFT ASSEMBLY (LONG SHAFT)
45 24-20254 SPRING, COMPRESSION - DRIVE SHAFT
46 17-30545 PIN, DRIVE SHAFT
47 88181 SLEEVE, LUBRICATION - DRIVE SHAFT
48 15-92881A1 SHIM, BEARING TO GEAR HOUSING (.002-3-5-10-20)
49 31-8M0166756 ROLLER BEARING ASSEMBLY Comment: TAPERED - DRIVE SHAFT
49A 78654A1 SEAT ASSEMBLY Comment: DRIVE SHAFT - SPLINED NYLON SEAL SEAT ON DRIVE SHAFT
49B 86304 SEAL, SPLINED - DRIVE SHAFT
GEAR HOUSING ASSEMBLY, COMPLETE (SERIAL GROUP NO. 7)(PAGE 2) (34 parts) GEAR HOUSING ASSEMBLY, COMPLETE (SERIAL GROUP NO. 7)(PAGE 2)
Ref OEM Part # Part Name
- 27-72486A32 GASKET SET
1 1643-9539T1 GEAR HOUSING ASS'Y Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
51 760394 CAM, SHIFT Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
52 38441 FOLLOWER, CAM
53 20843 SLIDE, CROSS PIN
54 24-39845 SPRING, COMPRESSION - CAM FOLLOWER
55 15-38374A1 SHIM, BEARING CUP TO GEAR HOUSING (.002-3-5-10)
56 31-38356A1 TAPERED ROLLER BEARING ASSEMBLY
57 31-21739 BEARINH, ROLLER - FORWARD GEAR
58 43-55608T4 FORWARD GEAR ASSEMBLY
59 52-92911T RATCHET, SLIDING CLUTCH
60 17-8M0020942 PIN, CROSS - RATCHET TO PROPELLER SHAFT
61 24-38114 SPRING, RETAINING - CROSS PIN
62 44-75365 SHAFT, PROPELLER
63 43-79158T REVERSE GEAR ASSEMBLY
65 12-32004 WASHER, THRUST - REVERSE GEAR
66 30-20839T BEARING, BALL - REVERSE GEAR
67 25-31986 "O" RING, BEARING CARRIER
68 69386T1 BEARING CARRIER ASSEMBLY
69 31-21700 BEARING, ROLLER - BEARING CARRIER
70 26-8M0205511 OIL SEAL, BEARING CARRIER
71 26-8M0203757 OIL SEAL, BEARING CARRIER
72 28-30281 KEY, LOCATING - BEARING CARRIER
73 14-53012 TAB WASHER, GEAR HOUSING COVER
74 11-87763 COVER, GEAR HOUSING
75 97-31640Q4 TRIM TAB ASSEMBLY, GEAR HOUSING
76 10-66024 SCREW, TRIM TAB TO GEAR HOUSING
77 12-8M0214963 WASHER, DRIVE SHAFT HOUSING STUD (3/8")
78 11-8M0204726 NUT, DRIVE SHAFT HOUSING STUD (3/8")
79 12-65791 WASHER Comment: DRIVE SHAFT HOUSING TO GEAR HOUSING STUD (7/16")
80 11-8M0204653 NUT Comment: DRIVE SHAFT HOUSING TO GEAR HOUSING STUD (7/16")
81 73345A1 THRUST HUB, FRONT
84 14-8M0214942 TAB WASHER, PROPELLER
85 11-69578Q1 NUT, PROPELLER
MISCELLANEOUS PARTS/ACCESSORIES (1 parts) MISCELLANEOUS PARTS/ACCESSORIES
Ref OEM Part # Part Name
- 37-43198A84 DECAL SET - SERIAL GROUP #11
OVERSIZE PISTON AND RING (1 parts) OVERSIZE PISTON AND RING
Ref OEM Part # Part Name
-- 39-28616A12 RING, PISTON (.015 OVERSIZE)
PROPELLERS (1 parts) PROPELLERS
Ref OEM Part # Part Name
- 48-73144A45 PROPELLER ASSEMBLY (ALUMINUM)(PITCH 17") Comment: 3 BLADES SERIAL GROUP #2
STARTER HOUSING (MANUAL) (49 parts) STARTER HOUSING (MANUAL)
Ref OEM Part # Part Name
1 11-20166 NUT, SHEAVE SHAFT (LEFT HAND THREAD)
2 14-61004 TAB WASHER, SHEAVE SHAFT NUT
3 89016A3 HOUSING, STARTER
4 10-90073 SCREW Comment: STARTER HOUSING TO CRANKCASE/CYLINDER BLOCK (1")
5 13-20202 LOCKWASHER, STARTER HOUSING SCREW
6 37691 PLATE, CABLE GUIDE
7 10-358811 SCREW, DRIVE - CABLE GUIDE TO START HOUSING
8 61002 RETAINER, STARTER SPRING
9 24-39502T02 SPRING, STARTER REWIND
10 76053A1 SHEAVE ASSEMBLY
11 23-63100 BUSHING, SPRING GUIDE
12 30596 PAWL, STARTER
13 13-36206 WASHER, WAVE-STARTER PAWL
15 23-63061 SPACER, SHEAVE SHAFT
16 39840 RETAIINER, WAVE WASHER
17 12-57837 WASHER, WAVE WASHER RETAINER
18 13-20160 WASHER, WAVE-RETAINER TENSION
19 24-66853 SPRING, RETAINER PLATE TO STARTER SHEAVE
19A 66848 RETAINER, SPRING
20 66845 PLATE, RETAINER-STARTER PAWL
21 12-57860 WASHER, WEAR-SHEAVE SHAFT
22 61003 SHAFT, SHEAVE
23 47341A11 STARTER CABLE Comment: (FOR MANUAL STARTING OF ELECTRIC ENGINE)
24 28747 HANDLE, STARTER CABLE Comment: UNITED STATES 4962055 AND BELOW AUSTRALIA 8053229 AND BELOW BELGIUM 9195685 AND BELOW CANADA 7115572 AND BELOW
24&25 79470A1 HANDLE AND RETAINER ASSEMBLY Comment: STARTER CABLE UNITED STATES 4962056 AND UP AUSTRALIA 8053230 AND UP BELGIUM 9195686 AND UP CANADA 7115573 AND UP
25 79470A1 RETAINER, STARTER CABLE AND HANDLE
26 70969 CABLE, INTERLOCK Comment: UNITED STATES 4357640 THRU 4705992 AUSTRALIA 8030090 THRU 8044724 BELGIUM 9107214 THRU 9155279 CANADA 7068998 THRU 7097572
27 10-32228 SCREW Comment: INTERLOCK CABLE TO EXHAUST PLATE (5/8")
28 10-69022 SCREW Comment: INTERLOCK CABLE TO STARTER HOUSING (1/2")
29 13-27660 LOCKWASHER, INTERLOCK CABLE SCREW
30 12-26013 WASHER, INTERLOCK CABLE SCREW
31 57236 CAM, SLIDING-STARTER HOUSING
32 24-70086 SPRING, SLIDING CAM
33 12-37998 WASHER, INTERLOCK CABLE
34 18-26953 COTTER PIN, INTERLOCK CABLE TO SLIDING CAM
35 65757A1 TOGGLE ASSEMBLY, STARTER INTERLOCK
36 10-57249 SCREW, TOGGLE TO STARTER HOUSING
37 23-26856 BUSHING, TOGGLE SCREW
38 24-57279 SPRING, TOGGLE SCREW
39 76568 CABLE Comment: INTERLOCK ALSO USED ON TILLER HANDLE MODELS
40 10-69022 SCREW, CABLE (1/2") Comment: ALSO USED ON TILLER HANDLE MODELS
41 12-26013 WASHER, CABLE SCREW Comment: ALSO USED ON TILLER HANDLE MODELS
42 428201 CAM, INTERLOCK Comment: UNITED STATES 4962056 AND UP AUSTRALIA 8053230 AND UP BELGIUM 9195686 AND UP CANADA 7115573 AND UP
43 10-76138 SCREW, INTERLOCK CAM ATTACHING (1 1/8")
44 24-761401 SPRING, INTERLOCK CAM SCREW
45 79371 ACTUATOR, INTERLOCK
46 10-76137 SCREW, INTERLOCK SCTUATOR ATTACHING (1 5/8")
47 24-76139 SPRING, INTERLOCK ACTUATOR SCREW
48 18-26811 COTTER PIN, INTERLOCK CABLE TO ACTUATOR
STEERING HANDLE ASSEMBLY (48 parts) STEERING HANDLE ASSEMBLY
Ref OEM Part # Part Name
- 78551A5 STEERING HANDLE ASSEMBLY
-- 52148A1 CO-PILOT ASSEMBLY
1 48405A2 ARM, STEERING HANDLE
2 12-69056 WASHER, STEERING HANDLE ARM
3 11-826709109 NUT, STEERING HANDLE ARM
5 58192A1 GRIP, STEERING HANDLE ARM
6 48416 CAP, STEERING HANDLE GRIP
7 48519 PLATE, COVER - DRIVE WHEEL
8 27-48518 GASKET, COVER PLATE
9 10-72169 SCREW Comment: DRIVE WHEEL COVER PLATE FASTENING (1/2")
10 48414 HOUSING Comment: DRIVE WHEEL - STEERING ARM HANDLE
11 48516A1 DRIVE WHEEL AND ROD ASSEMBLY
12 48520 CABLE, THROTTLE
13 785511 CONDUIT, CABLE
14 89613 CONNECTOR, CONTROL LINKAGE
15 8M0026078 TUBE, THROTTLE CABLE GUIDE
15A 10-824081 SCREW, SET - THROTTLE CABLE GUIDE TUBE
16 8M0204660 GUIDE, THROTTLE CABLE
17 20007 ANCHOR, THROTTLE CABLE
18 10-8M0204644 SCREW, THROTTLE CABLE ANCHOR
19 485681 SHIFT LEVER
20 98530 KNOB, SHIFT LEVER
21 23-48475 BUSHING, NYLON - SHIFT ROD (1/4"I.D.)
22 12-35950 WASHER, SHIFT ROD
23 18-25191 COTTER PIN, SHIFT ROD
24 8128061 ROD, SHIFT
25 48419T ROD END, SHIFT ROD
26 78812A1 DETENT, SHIFT LEVER
27 10-48409 SCREW Comment: SHIFT LEVER DETENT TO STEERING HANDLE BRACKET
28 23-48237 BUSHING, NYLON - SHIFT LEVER (3/8"I.D.)
29 12-37828 WASHER, SHIFT LEVER
30 11-8M0204726 NUT, SHIFT LEVER TO STEERING HANDLE BRACKET
31 48404T8 BRACKET, STEERING HANDLE
32 48416 CAP, STEERING HANDLE BRACKET
33 10-823597 SCREW HANDLE BRACKET TO STEERING HANDLE
34 12-48477 WASHER, STEERING HANDLE BRACKET (.505 I.D.)
35 12-48526 WASHER Comment: NYLON - STEERING HANDLE BRACKET (.630 I.D.)
36 23-28919 BUSHING Comment: NYLON - STEERING HANDLE BRACKET (5/8" I.D.)
37 23-48525 SPACER, STEERING HANDLE BRACKET
38 12-38000 WASHER Comment: NYLON - STEERING HANDLE BRACKET (1 35/64" O.D.)
39 13-48478 WAVE WASHER, STEERING HANDLE BRACKET
40 12-49636 WASHER Comment: NYLON - STEERING HANDLE BRACKET (1 3/4" 0.D.)
41 11-82671317 NUT, STEERING HANDLE BRACKET SCREW
43 45064 COVER, BOTTOM COWL - SHORTING SWITCH
44 19-35827 PLUG, BOTTOM COWL - SHORTING SWITCH HOLE
45 11-30428 FASTENER, PLUG TO BOTTOM COWL
46 10-35786 SCREW, BRACKET TO ENGINE (1")
47 14-43589 TAB WASHER, BRACKET SCREW
SWIVEL BRACKET ASSEMBLY (20 parts) SWIVEL BRACKET ASSEMBLY
Ref OEM Part # Part Name
1 1490-8599A6 SWIVEL BRACKET ASSEMBLY (LONG SHAFT)
2 26-32911 OIL SEAL, SWIVEL BRACKET
3 10-47828 SCREW, DRIVE - SWIVEL BRACKET
4 22-8M0169589 FITTING, GREASE
4A 26-22734 OIL SEAL, SWIVEL BRACKET Comment: UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
5 69540A4 SWIVEL PIN ASS'Y (LONG SHAFT)
6 30711 BUMPER, STEERING ARM
7 10-33986 BOLT, UPPER MOUNT TO SWIVEL PIN (5 1/4")
8 12-47606 WASHER, SWIVEL PIN - LOWER
9 76535T BRACKET, RIDE-GUIDE ATTACHING Comment: UNITED STATES 4357640 THRU 4576236 AUSTRALIA 8030090 THRU 8042649 BELGIUM 9107214 THRU 9136249 CANADA 7068998 THRU 7088597
9A 76535T BRACKET, RIDE-GUIDE ATTACHING Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
10 16-39781 STUD, BRACKET TO STEERING ARM (1 1/4")
11 11-8M0204726 NUT, BRACKET STUD
12 10-34352 SCREW, BRACKET TO STEERING ARM (7/8")
13 76533 STRAP, BRACKET SCREW
14 17-25598 PIN, REVERSE LOCK SPRING ATTACHING
15 12-26837 WASHER, SWIVEL PIN TO BOTTOM YOKE (.065)
16 77416T1 YOKE, BOTTOM Comment: UNITED STATES 4962056 AND UP AUSTRALIA 8053230 AND UP BELGIUM 9195686 AND UP CANADA 7115573 AND UP
17 11-71956 NUT, BOTTOM YOKE
17A 53-77415 RETAINING RING, BOTTOM YOKE
THROTTLE CONTROL LINKAGE AND SPARK ADVANCE (40 parts) THROTTLE CONTROL LINKAGE AND SPARK ADVANCE
Ref OEM Part # Part Name
1 72040T BRACKET, THROTTLE ACTUATOR
2 10-53576 SCREW, THROTTLE ACTUATOR BRACKET (1 1/8")
3 13-8M0204647 LOCKWASHER Comment: THROTTLE ACTUATOR BRACKET SCREW
4 815603A1 ACTUATOR, THROTTLE
5 10-21449 SCREW, BRACKET TO THROTTLE ACTUATOR (2")
6 12-25893 WASHER, BRACKET SCREW
7 13-62172 WAVE WASHER, BRACKET SCREW
8 11-29250 NUT, BRACKET SCREW
9 57440 SWIVEL, LINK ROT TO THROTTLE ACTUATOR
10 72043 LINK ROD
11 57440 SWIVEL, LINK ROD TO THROTTLE ARM
12 76560 ARM, THROTTLE Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
13 815607A1 LEVER, SPARK ADVANCE Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
14 10-818165 SCREW Comment: LEVER AND ARM TO CYLINDER BLOCK (1 3/4")
15 23-55164 BUSHING, LEVER AND ARM SCREW
16 23-55171 BUSHING, LEVER AND ARM SCREW
17 24-55162 SPRING, RETURN - SPARK ADVANCE LEVER
18 12-68410 WASHER, LEVER AND ARM SCREW
19 39483 LATCH, THROTTLE ARM (THROTTLE CABLE)
20 10-69026 SCREW, LATCH TO THROTTLE ARM (7/8")
21 24-20099 SPRING, COMPRESSION - LATCH SCREW
22 11-826709109 NUT, LATCH SCREW
23 76056 LINK ROD Comment: SPARK ADVANCE (2 1/2" LONG) MEASURE LENGTH OF LINK ROD TO INSURE ORDERING CORRECT PART.
24 77013A1 SWIVEL, LINK ROD TO SPARK ADVANCE LEVER
24A 13-29402 WAVE WASHER, SWIVEL
25 23-26856 BUSHING, LINK ROD SWIVEL
26 12-73288 WASHER, LINK ROD SWIVEL
27 11-45774 NUT, LINK ROD SWIVEL
28 61939 PIVOL, THREADED - LINK ROD TO TRIGGER
29 66778T PLATE, THROTTLE ACTUATOR
30 10-46420 SCREW, PLATE TO THROTTLE ACTUATOR (1/2")
31 10-23702 SCREW, ADJUSTING - PLATE (1 1/8") Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
32 11-68219 NUT, ADJUSTING SCREW
33 48039 CAP, ADJUSTING SCREW
34 10-25158 SCREW, ADJUSTING - THROTTLE ARM (1 3/4") Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
35 11-68219 NUT, ADJUSTING SCREW Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
36 48039 CAP, ADJUSTING SCREW Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
37 10-25158 SCREW Comment: ADJUSTING - SPARK ADVANCE LEVER (1 3/4") UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
38 11-68219 NUT, ADJUSTING SCREW Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
39 48039 CAP, ADJUSTING SCREW Comment: UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
TOP COWL ASSEMBLY (39 parts) TOP COWL ASSEMBLY
Ref OEM Part # Part Name
1 2153-7937A8 TOP COL (ELECTRIC)
2 55455 HOOK, TOP COWL ALTCH - REAR
3 10-22956 SCREW, REAR HOOK TO TOP COWL (7/8")
4 13-26992 LOCKWASHER, REAR HOOK MOUNTING SCREW
5 37690 SHIELD, REAR - TOP COWL
6 10-37370 SCREW, REAR SHIELD TO TOP COWL
7 13-37371 LOCKWASHER, REAR SHIELD SCREW
8 55459A5 RETAINER ASSEMBLY, TOP COWL
9 35496 PAD, BUMPER - TOP COWL RETAINER
10 10-35386 SCREW, RETAINER TO TOP COW (1")
11 13-39107 LOCKWASHER, RETIANER TO TOP COWL SCREW
12 94918F1 LEVER, COWL LATCH HINGE
13 52739 HINGE, COWL LATCH - TOP COWL
14 17-58998 PIN, COWL LATCH LEVER TO HINGE
15 25-20116 GROMMET, CHOKE KNOB - TOP COWL (MANUAL)
16 720201 BRACKET, REAR COWL SUPPORT
18 60577 MOUNT, RUBBER - REAR SUPPORT BRACKET
19 12-69056 WASHER, REAR SUPPORT BRACKET RUBBER MOUNT
20 11-29598 NUT, REAR SUPPORT BRACKET RUBBER MOUNT
21 99150A5 BRACKET ASSEMBLY, FRONT SUPPORT
22 31014 MOUNT, RUBBER - FRONT SUPPORT BRACKET
23 13-26992 LOCKWASHER Comment: FRONT SUPPORT BRACKET RUBBER MOUNT
24 11-29598 NUT, FRONT SUPPORT BRACKET RUBBER MOUNT
25 10-37562 SCREW Comment: FRONT SUPPORT BRACKET TO BOTTOM COWL (1")
26 58124A20 SWITCH ASSEMBLY, MERCURY
27 10-69235 SCREW, SWITCH TO FRONT BRACKET (1/2")
28 86-45915 TERMINAL BLOCK
29 10-20411 SCREW Comment: TEMRINAL BLOCK TO FRONT BRACKET (5/8")
30 10-69079 SCREW, HARNESS LEADS ATTACHING (1/2")
31 17-36242 ROLL PINE, MERCURY SWITCH
32 87-74605A4 SWITCH ASSEMBLY Comment: NEUTRAL START USE WITH TILLER HANDLE MODELS
33 10-64332 SCREW, SWITCH TO FRONT BRACKET
34 11-24832 NUT, SWITCH SCREW
35 97411 ACTUATOR, INTERLOCK
36 24-88099 SPRING, INTERLOCK ACTUATOR
37 10-37892 SCREW, ACTUATOR TO FRONT BRACKET
38 12-22887 WASHER, ACTUATOR SCREW
39 23-88100 SPACER, ACTUATOR SCREW
40 11-859124 NUT, ACTUATOR SCREW

100-Hour / Annual Service Checklist

Regular maintenance keeps your Mercury 500, 50 running reliably season after season. Most of these tasks can be performed with basic tools and the factory service manual.

  1. Replace water pump impeller and inspect wear plate
  2. Change engine oil and oil filter (check drain plug washer)
  3. Replace spark plugs and check ignition timing
  4. Drain and refill lower unit gear oil; inspect for water contamination
  5. Inspect fuel lines, primer bulb, and fuel filter for deterioration
  6. Check and replace sacrificial anodes (zinc or aluminum)
  7. Inspect propeller for damage; check shaft seal and cotter pin
  8. Check valve clearance (refer to service manual for specifications)
  9. Lubricate all grease points (steering, tilt tube, shift linkage)
  10. 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.

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