– JLM Marine Boat Parts Limited

Mercury 500 (7051983 THRU 7068997) Parts & Diagrams

🔎 Mercury 500 Reference Library — Exploded parts diagrams (20 diagrams), specifications, common issues, and maintenance checklist.

The Mercury 500 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:

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.

▶BOTTOM COWL ASSEMBLY (28 parts)

Ref	OEM Part #	Part Name
-	12-847883	WASHER, PLUG COVER SCREW Comment: REMOVE - NOT REQUIRED ON ELECTRIC ENGINE
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	16-68169	STUD, BOTTOM COWL TO REAR SUPPORT BRACKET
6	11-35888	NUT, BOTTOM COWL STUD
7	59065A4	STOP SWITCH ASSEMBLY MANUEL Comment: MANUAL
8	24-60239	SPRING, STOP SWITCH Comment: MANUAL
9	87-61577A1	CONTACT ASSEMBLY, STOP SWITCH Comment: MANUAL
10	38950A1	COVER ASSEMBLY, STOP SWITCH Comment: MANUAL
11	12-59061	WASHER, STOP SWITCH Comment: MANUAL
12	13-26996	LOCKWASHER, STOP SWITCH Comment: MANUAL
13	11-68219	NUT, GROUND LEAD TO STOP SWITVH Comment: MANUAL
14	13-21972	LOCKWASHER, CONNECTOR BASE Comment: MANUAL
15	11-21971	NUT, CONNECTOR BASE TO BOTTOM COWL Comment: MANUAL
16	56319A5	WIRE, SWITCH BOX TO STOP SWITCH Comment: MANUAL
17	60948A1	COVER PLATE ASSEMBLY
18	10-62568	SCREW, COVER PLATE TO BOTTOM COWL (3/8")
19	37695	BOOT, CONTROL CABLE
20	37637	BOOT, FUEL CONNECTOR
21	37692	SUPPORT, EXTERNAL WIRING HARNESS ELECTRIC Comment: ELECTRIC
22	10-67916	SCREW, HARNESS SUPPORT TO BOTTOM COWL (2") Comment: ELECTRIC
23	11-8M0207775	NUT, HARNESS SUPPORT SCREW Comment: ELECTRIC
24	32-8M0108355	HOSE, TELL TALE HOSE TO BOTTOM COWL
25	69791	NOZZLE, TELL TALE HOSE TO BOTTOM COWL
26	66849	CLAMP, NOZZLE - TELL TALE
27	10-48408	SCREW, NOZZLE CLAMP TO BOTTOM COWL (1/2")

▶CARBURETOR ASSEMBLY, COMPLETE (23 parts)

Ref	OEM Part #	Part Name
--	1399-5930	REPAIR PARTS KIT (1 PER CARBURETOR Comment: UNITED STATES 4280270 AND UP AUSTRALIA NONE BUILT BELGIUM 9100589 AND UP CANADA 7060608 AND UP
1	1333-5921	CARBURETOR ASSEMBLY, COMPLETE Comment: UNITED STATES 4280270 AND UP AUSTRALIA NONE BUILT BELGIUM 9100589 AND UP CANADA 7060608 AND UP
2	1395-8673	FLOAT ASSEMBLY
6	1395-92581	INLET NEEDLE, SEAT AND GASKET
9	1399-6223	COVER, FLOAT BOWL Comment: UNITED STATES 4280270 AND UP AUSTRALIA NONE BUILT BELGIUM 9100589 AND UP CANADA 7060608 AND UP
9B	1395-5815	JET, ECONOMIZER (.086) Comment: UNITED STATES 4280270 AND UP AUSTRALIA NONE BUILT BELGIUM 9100589 AND UP CANADA 7060608 AND UP
10	10-52195	SCREW, FLOAT BOWL COVER (SHORT)
11	10-52196	SCREW, FLOAT BOWL COVER (LONG)
12	13-26995	LOCKWASHER, FLOAT BOWL COVER SCREW
13	27-25851	GASKET, STRAINER COVER (LARGE)
14	1399-3938	SCREEN, FILTER
15	27-25849	GASKET, STRAINER COVER (SMALL)
16	1399-1135	COVER, STRAINER
19	1395-6027	SCREW, THROTTLE STOP LEVER
20	1399-94	LEVER, THROTTLE STOP(SEE NOTE BELOW)
21	1399-2012	SHAFT, THROTTLE
25	1399-5812	SHUTTER, THRORRLE Comment: UNITED STATES 4280270 AND UP AUSTRALIA NONE BUILT BELGIUM 9100589 AND UP CANADA 7060608 AND UP
28	10-28405	SCREW, PLUG - MAIN FUEL JET CHANNEL
30	1399-1459	JET, MAIN FUEL (.059)
33	10-23178	SCREW, PLUG - MAIN NOZZLE
35	10-28845	SCREW, PLUG - BODY CHANNEL
37	27-31402	GASLET. CARBURETOR FLANGE
38	11-29250	NUT, CARBURETOR MOUNTING STUD

▶CARBURETOR LINKAGE AND CHOKE SOLENOID (35 parts)

Ref	OEM Part #	Part Name
1	89-889274	CHOKE SOLENOID-ELECTRIC
2	13-26996	LOCKWASHER, CHOKE SOLENOID TERMINAL ELECTRIC
3	11-68219	NUT, CHOKE SOLENOID TERMINAL ELECTRIC
4	10-26066	SCREW, CHOKE SOLENOID TO FRONT BRACKET ELECTRIC
5	13-8M0204647	LOCKWASHER, CHOKE SOLENOID SCREW ELECTRIC
6	11-22053	NUT, CHOKE SOLENOID SCREW ELECTRIC
7	54283A2	PLUNGER AND LINK ASSEMBLY, CHOKE SOLENOID ELECTRIC
8	12-30164	WASHER, PLUNGER AND LINK ELECTRIC
9	18-26953	COTTER PIN, LINK TO UPPER CHOKE SHUTTER ELECTRIC
10	1333-5921	CARBURETOR ASSEMBLY, COMPLETE Comment: UNITED STATES 4280270 AND UP AUSTRALIA NONE BUILT BELGIUM 9100589 AND UP CANADA 7060608 AND UP
11	74371	CLUSTER, THROTTLE LEVER (UPPER CARB.)
12	1395-6027	SCREW, CLUSTER TO THROTTLE LEVER
13	53719A2	PICK-UP BRACKET ASSEMBLY
13A	28-89694	INSET COUPLING, THROTTLE SHAFT
14	10-53651	SCREW, PICK-UP BRACKET (3/4")
15	90242A1	KNOB, CHOKE ROD
16	25-20116	GROMMET, CHOKE KNOB
17	46303	"U"LINK, CHOKE ROD TO CHOKE KNOB (ELECTRIC)
18	10-69022	SCREW, "U" LINK TO CHOKE KNOB
19	13-26996	LOCKWASHER, "U" LINK SCREW
20	18-26811	COTTER PIN, "U" LINK TO CHOKE ROD
21	46304	ROD, CHOKE(ELECTRIC)
22	17-25391	RIVET, CHOKE SHUTTER TO CHOKE ROD
23	24-28965	SPRING, TENSION - CHOKE ROD TO CARBURETOR
24	10-28713	SCREW, TENSION SPRING TO CARBURETOR
25	27711	RETAINER, SPRING
26	38604	SHUTTER, CHOKE - CARBURETOR
27	23-30438	BUSHING, NYLON - UPPER CHOKE SHUTTER(ELECTRIC)
28	16-69036	STUD, CARBURETOR - CHOKE SHUTTER PIVOT (1 3/8")
29	12-30164	WASHER, CHOKE SHUTTER CARBURETOR STUD
30	11-20110	NUT, CHOKE SHUTTER TO CARBURETOR STUD
31	35-56197	SCREEN, FILTER - CARBURETOR
32	16-69037	STUD, FILTER SCREEN TO CARBURETOR (1 1/8")
33	12-30164	WASHER, FILTER SCREEN STUD
34	11-20110	NUT, FILTER SCREEN STUD

▶CLAMP AND SWIVEL BRACKET ASSEMBLY (54 parts)

Ref	OEM Part #	Part Name
1	1440-8394A1	CLAMP BRACKET ASSEMBLY
2	10-78492A1	THUMB SCREW ASSEMBLY
3	12-70988	WASHER, THUMB SCREW
4	8M0041936	TUBE, TILT - 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	1490-8599A6	SWIVEL BRACKET ASSEMBLY (LONG SHAFT)
19	26-32911	OIL SEAL, SWIVEL BRACKET
20	10-47828	SCREW, DRIVE - SWIVEL BRACKET
21	22-69059	FITTING, GREASE
22	19-77633Q	LUBRICAP, SWIVEL BRACKET GREASE FITTING
23	76386	TILT LOCK ASSEMBLY, STARBOARD
24	76385T	TILT LOCK ASSEMBLY, PORT
25	47802	TUBE, TILT LOCK
26	18-47959	COTTER PIN, TILT LOCK TUBE
27	23-71574	BUSHING, TILT LOCK TUBE
28	13-69150	WASHER, WAVE - TILT LOCK TUBE
29	74316A1	SWIVEL PIN AND STEERING ARM ASSEMBLY (LONG SHAFT)
30	30711	BUMPER, STEERING ARM
31	10-33986	BOLT, UPPER MOUNT TO SWIVEL PIN (5 1/4")
32	12-47606	WASHER, SWIVEL PIN - LOWER
33	76535T	BRACKET, RIDE GUIDE ATTACHING
34	16-39781	STUD, RIDE GUIDE BRACKET TO STEERING ARM (1 1/4")
35	11-8M0204726	NUT, RIDE GUIDE BRACKET STUD
36	17-25598	PIN, REVERSE LOCK SPRING ATTACHING
37	12-26837	WASHER, SWIVEL PIN TO BOTTOM YOKE (.065)
38	77416T1	YOKE, BOTTOM
39	11-71956	NUT, SWIVEL PIN RETAINING
40	55-696531	PIN, LOWER SHOCK MOUNTING
41	24-29821	SPRING, REVERSE LOCK TENSION
42	87432	REVERSE LOCK ASSEMBLY
43	56349	SHAFT, REVERSE LOCK PIVOT
44	18-45882	COTTER PIN, REVERSE LOCK TO SHAFT
45	23-28199	SPACER, UPPER SHOCK BUSHING TO CLAMP BRACKET
46	12-28196	WASHER, UPPER BUSHING RETAINER (INNER)
47	12-59378	WASHER, LOWER BUSHING RETAINER (INNER)
48	55-58780A7	SHOCK ABSORBER
49	23-32171	BUSHING, RUBBER - SHOCK ABSORBER (UPPER)
50	23-28198	BUSHING, RUBBER - SHOCK ABSORBER (LOWER)
51	12-8M0204648	WASHER, UPPER AND LOWER BUSHING RETAINER (OUTER)
52	10-69375A1	SCREW, UPPER AND LOWER SHOCK MOUNTING PIN (3/4")
53	70679	COVER, UPPER AND LOWER SHOCK MOUNTING PIN
54	10-37655	SCREW, COVER TO SHOCK MOUNTING SCREWS (1/2")

▶COWLING AND FRONT COVER (14 parts)

Ref	OEM Part #	Part Name
--	92-86166Q1	GLUE (BLANKET ADHESIVE)
1	2182-7927A5	COWL FRONT COVER ASSEMBLY
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, SOUND 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)

Ref	OEM Part #	Part Name
--	39-28616A12	RING, PISTON (.015 OVERSIZE) Comment: OVERSIZE PISTON AND RING
1	400-4627	CRANKSHAFT
2	60834A3	CARROER ASSEMBLY, "O" RING
3	64254001	"O" RING, CARRIER
4	500-5345A2	CENTER MAIN BEARING ASSEMBLY
5	17-20032	DOWEL PIN, CENTER MAIN BEARING
6	29-20046T	BEARING, NEEDLE
7	20047	RACE, OUTER
8	53-20048	RING, SNAP - OUTER RACE CLAMPING
9	10-20784	SCREW, CENTER MAIN VEARING CLAMPING (1 1/2")
10	11-8M0207775	NUT, CENTER MAIN BEARING CLAMPING SCREW
11	17-20379	DOWEL PIN, (STEPPED)
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 - MAIN BEARING
18	34-20053	REED STOP, MAIN BEARING REED VALVES
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 CAN ASSEMBLY
25	10-45379	SCREW, CAP TO CONNECTING ROD
26	11-20061	NUT, CONNECTING ROD SCREW
27	29-20046T	BEARING, NEDDLE - CRANKPIN
28	29-20063	BEARING, NEEDLE-PISONT PIN
29	12-47275	WASHER, NEEDLE LOCATING

▶CYLINDER BLOCK AND CRANKCASE ASSEMBLY (26 parts)

Ref	OEM Part #	Part Name
1	831-5347A3	CYLINDER BLOCK AND CRANKCASE ASSEMBLY
2	17-20032	DOWEL PIN. CYLINDER BLOCK TO MAIN BEARING
3	17-20323	DOWEL PIN, CYLINDER BLOCK TO CENTER MAIN BEARING
4	22-328022	PLUG, PIPE - WATER PRESSURE AND BALANCE TUBE HOLES
5	16-64936	STUD, CARBURETOR MOUNTING (1 1/4")
6	16-68165	STUD, CRANKCASE TO DRIVE SHAFT HOUSING (1 9/16")
7	17-43044	DOWEL PIN, CRANKCASE TO CYLINDER BLOCK
8	16-68168	STUD CYL. BLOCK TO DRIVE SHAFT HOUSING (3 11/16")
9	16-68166	STUD, CYL. BLOCK TO DRIVE SHAFT HOUSING 3 5/16")
10	16-68167	STUD, CYL. CLOCK TO DRIVE SHAFT HOUSING (1 15/16")
11	22-291112	CONNECTOR, WATER TELL TALE HOLE - CYLINDER BLOCK
12	10-69091	SCREW, CRANKCASE TO CYLINDER BLOCK (1 5/8")
13	10-22039	SCREW, CRANKCASE TO CYLINDER BLOCK (2 3/4")
15	11-29250	NUT, CRANKCASE SCREW
16	10-98260	SCREW, MAIN BEARING LOCKING (5/8")
17	14-20091	TAB WASHER, BEARING LOCKING SCREW
18	10-20359	SCREW, CENTER MAIN BEARING LOCKING (1")
19	32-8M0108355	TUBE, BALANCE - MAIN BEARING (8")
20	22-291112	CONNECTOR, BALANCE TUBE TO CYLINDER BLOCK
21	54-20386	CLAMP, BALANCE TUBE TO CONNECTORS
22	58124A8	SWITCH ASSEMBLY, MERCURY
23	10-48408	SCREW, MERCURY SWITCH TO EXH. MANIFORLD COVER (1/2")
24	21-64871A2	CHECK VALVE ASSEMBLY, BLEED HOSE (UPPER)
26	32-9938779	HOSE, CYLINDER BLEED
27	22-56759	CONNECTOR, CYLINDER BLEED HOSE (LOWER)
28	54-20387	CLAMP, BLEED HOSE ATTACHING

▶DRIVE SHAFT HOUSING ASSEMBLY (48 parts)

Ref	OEM Part #	Part Name
1	1593-7513A12	DRIVE SHAFT HOUSING ASSEMBLY (LONG SHAFT)
2	19-64649	PLUG, PLASTIC - TRIM TAB SCREW HOLE
3	16-8M0022145	STUD, DRIVE SHAFT HOUSING TO GEAR HOUSING (1 3/4")
4	16-57935	STUD, DRIVE SHAFT HOUSING TO GEAR HOUSING (3")
5	11-8M0204653	NUT, 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
11	18-25191	COTTER PIN, PUSH ROD TO REVERSE LOCK
12	933361	GUIDE, PUSH ROD Comment: UNITED STATES 4280270 AND UP AUSTRALIA NONE BUILT BELGIUM 9100589 AND UP CANADA 7060608 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, LOWER MOUNT CLAMP/DRIVE SHAFT HSG.
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
27	24929	PACKING, "U" CUP - UPPER MOUNT COVERS
28	79680A1	COVER, UPPER MOUNT - OUTSIDE HALF
29	79680A1	COVER, UPPER MOUNT - INSIDE HALF
30	10-49987	SCREW, UPPER MOUNT COVER - REAR (1 1/2")
31	10-37941	SCREW, UPPER MOUNT COVER - FRONT (1 3/4")
32	11-69431	NUT, UPPER MOUNT COVER FASTENING 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 BOLD (3/8 ID)
36	11-23161	NUT, UPPER MOUNT BOLT
37	27-385011	GASKET, EXHAUST EXTENSION PLATE TO DRIVE SHAFT HOUSING
38	11-64809	NUT, 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, 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

▶END CAPS, MANIFOLD AND EXHAUST COVERS (33 parts)

Ref	OEM Part #	Part Name
1	831-5347A3	CYLINDER BLOCK AND CRANKCASE ASSEMBLY (SEE PAGE 19 FOR PARTS
2	1100-3281A1	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	15-20082A1	SHIM, UPPER END CAP TO CYL. BLOCK/CRANKCASE (.002-3-5-10)
7	10-29256	SCREW, UPPER END CAP MONTING (7/8")
8	90435	MOUNT, RUBBER - CRANKCASE
9	11-8M0207775	NUT, CRANKCASE RUBBER MOUNT
10	37996	GROUND STRAP, CRANKCASE MOUNT
11	1158-6635T1	END CAP ASSEMBLY, LOWER
13	26-41953	L, LOWER END CAP
14	25-20081	"O" RING, LOWER END CAP
15	30-63742T	BALL BEARING, LOWER END CAP
16	15-20085A1	SHIM, LOWER END CAP TO CRANKCASE/BYL. BLOCK (.002-3-5-10)
17	10-29256	SCREW, LOWER END CAP MOUNTING (7/8")
18	27-854913	GASKET, CYLINDER BLOCK TO BAFFLE PLATE
19	90421T01	PLAT, BAFFLE - EXJAUST MANIFOLD
20	27-854924	GASKET, BAFFLE PLATE TO EXHAUST COVER
21	46112A3	COVER, EXHUAST MANIFOLD
22	10-37562	SCREW, MANIFOLD COVER TO CYL. BLOCK (1")
23	10-38837	SCREW, MANIFOLD COVER TO CYL. BLOCK - CLIP (1 1/8")
24	54-52905	CLIP, HIGH TENSION LEAD
25	1017-7054A1	COVER ASSEMBLY, CYLINDER BLOCK
26	22-328022	PLUG, PIPE - CYLINDER BLOCK COVER
27	27-85487	GASKET, CYLINDER BLOCK COVER
28	10-20653	SCREW, CYLINDER BLOCK COVER MOUNTING (1")
29	104-87	NUT, COVER MOUNTING SCREW
30	90435	MOUNT, RUBBER - CYLINDER BLOCK COVER
31	11-8M0207775	NUT CYLINDER BLOCK COVER RUBBER MOUNT
32	27935	COVER, TRANSFER PORT
33	27-279361	GASKET, TRANSFER PORT COVER
34	10-20540	SCREW, TRANSFER PORT COVER MOUNTING (5/8")

▶EXHAUST EXTENSION PLATE AND SHIFT LINKAGE (33 parts)

Ref	OEM Part #	Part Name
1	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
6	10-69069	SCREW, RETAINER TO EXHAUST EXTENSION PLATE (3/4")
7	27-796501	GASKETT, POWERHEAD TO EXHAUST EXTENSION PLATE
8	38156	SEAL, RUBBER - EXHAUST EXTENSION PLATE
9	99136	STRIP, RUBBER SEAL RETAINING
10	10-37571	SCREW, RETAINING STRIP TO EXHAUST EXTENSION PLATE (1/2")
11	27-385011	GASKET, EXHAUST EXTENSION PLATE TO DRIVE SHAFT HOUSING
12	59037A2	LEVER, THROTTLE AND SHIFT CABLES
13	24-38005	SPRING, COMPRESSION - QUICK DISCONNECT LEVER
14	23-37927	BUSHING, NYLON - QUICK DISCONNECT LEVER
15	17-239281	PIN, ROLL - QUICK DISCONNECT LEVER
16	37926	RETAINER, NYLON BEARING TO EXHAUST EXTENSION PLATE
17	10-37923	SCREW, RETAINER TO EXHAUST EXTENSION PLATE (1 1/2")
18	46933A1	GROUND STRAP ASSEMBLY, CRANKCASE TO COWL (3 5/8")
19	46933A2	GROUND STRAP ASSEMBLY, HOUSING TO COWL (3 3/8")
20	10-62568	SCREW, GROUND STRAP (3/9" SELF TAPPING)
21	75008A4	SHIFT SHAFT ASSEMBLY, UPPER (LONG SHAFT) Comment: UNITED STATES 4280270 AND UP AUSTRALIA NONE BUILT BELGIUM 9100589 AND UP CANADA 7060608 AND UP
22	93960A1	COUPLING, UPPER SHIFT SHAFT Comment: UNITED STATES 4141000 THRU 4280269 AUSTRALIA 8029515 THRU 8030089 BELGIUM 9082514 THRU 9100588 CANADA 7051983 THRU 7060607
23	23-26600	BUSHING, NYLON - UPPER SHIFT SHAFT Comment: UNITED STATES 4141000 THRU 4280269 AUSTRALIA 8029515 THRU 8030089 BELGIUM 9082514 THRU 9100588 CANADA 7051983 THRU 7060607
24	12-24664	WASHER, SHIFT CONTROL ACTUATOR
25	11-826709109	NUT, SHIFT CONTROL ACUATOR TO UPPER SHIFT SHAFT
26	72854A3	ACTUATOR ASSEMBLY, SHIFT CONTROL Comment: UNITED STATES 4280270 AND UP AUSTRALIA NONE BUILT BELGIUM 9100589 AND UP CANADA 7060608 AND UP
27	24-37934	SPRING, SHIFT CABLE
28	10-38069	SCREW, SPRING TO ACTUATOR
29	37932	BEARING, NYLON - SHIFT CONTROL ACTUATOR
30	10-36137	SCREW, BEARING TO SHIFT CONTROL ACTUATOR (1")
31	13-21272	LOCKWASHER, BEARING SCREW
32	37935	RAIL, SHIFT CONTROL BEARING
33	10-69028	SCREW, RAIL TO EXHAUST MANIFOLD COVER (3/4")
34	13-26992	LOCKWASHER, RAIL SCREW

▶FLYWHEEL ASSEMBLY AND STATOR (17 parts)

Ref	OEM Part #	Part Name
1	11-8M0214915	NUT, FLYWHEEL
2	12-33001	WAHSER, FLYWHEEL NUT
3	28-20094	KEYWHEEL DRIVE
4	223-2403A18	FLYWHEEL ASSEMBLY (ELECTRIC)
5	50-88755	RATCHET, FLYWHEEL (MANUAL)
6	10-69088	SCREW, PLATE AND RATCHET (5/16")
7	10-32417	SCREW, FLEX PLATE TO FLYWHEEL (5/8")
8	17-26618	PIN, DOWEL - PULLEY TO FLYWHEEL
9	29788	FLANGE, FLYWHEEL PULLEY
10	30306	PULLEY, FLYWHEEL
11	29787	HUB, FLANGE - FLYWHEEL PULLEY
12	398-2996	STATOR, ALTERNATOR - FLYWHEEL ELECTRIC
13	10-57021	SCERW, STATOR TO UPPER END CAP (7/8") ELECTRIC
14	54-26550	CLAMP, STATOR LEAD TO CRANKCASE ELCTRIC
15	10-35519	SCREW, STATOR LEAD CLAMP FASTENING (1/2") ELECTRIC
16	8M0084613	"D" WASHER, STATOR LEAD CLAMP SCREW ELECTRIC
17	54-46379	CLIP, STATOR LEAD TO CRANKCASE ELECTRIC

▶FUEL PUMP ASSEMBLY (28 parts)

Ref	OEM Part #	Part Name
1	66777A1	FUEL PUMP ASSEMBLY
2	21-30430A1	CHECK VALVE ASSEMBLY
3	23014A1	DIAPHRAGM KIT
7	23004	RETAINER, CHECK VALVE
8	10-43725	SCREW, RETAINER TO HOUSING
9	23008	COVER, FUEL PUMP
10	10-46368	SCREW, FUEL PUMP MOUNTING (2 1/8")
11	10-88447	SCREW, FUEL PUMP MOUNTING (1 5/8")
12	12-847883	WASHER, FUEL PUMP SCREW
13	12-66553	WASHER, FUEL PUMP SCREW
14	23-65790	BUSHING, GUEL PUMP SCREW
15	23-31915	SLEEVE, FUEL PUMP SCREW
16	22-22949	CONNECTOR, PUMP OUTLET TO FUEL LINE
17	22-22946	SLEEVE, RUBBER - CONNECTOR
18	22-22948	NUT, CONNECTOR TO FUEL LINE
19	32-32094	FUEL LINE, PUMP TO LOWER AND UPPER FILTER
20	22-22995	ELBOW FUEL PUMP INLET
21	22-22947	SLEEVE, RUBBER
22	22-22948	NUT, ELBOW
23	32-30036	FUEL LINE, FUEL PUMP TO ADAPTOR
24	22-37682	CONNECTOR, FUEL LINE TO ADAPTOR
25	22833	ADAPTOR, CHECK UNIT (FUEL LINE)
26	23069	STEM, CHECK UNIT ADAPTOR
27	25-16524	"O" RING, ADAPTOR STEM
28	24-23067T	SPRING, ADAPTOR STEM
29	30188	CUP WASHER, ADAPTOR
30	10-67916	SCREW, ADAPTOR TO BOTTOM COWL (2")-ELECTRIC
31	11-8M0207775	NUT, ADAPTOR SCREW

▶GEAR HOUSING ASSEMBLY, COMPLETE (PAGE 1) (50 parts)

Ref	OEM Part #	Part Name
-	1643-6038A7	GEAR HOUSING ASSEMBLY, COMPLETE(LONG SHAFT) Comment: SEE NOTE BELOW UNITED STATES 4280270 AND UP AUSTRALIA NONE BUILT BELGIUM 9100589 AND UP CANADA 7060608 AND UP
1	1643-6038A6	GEAR HOUSING ASSEMBLY
2	17-21438	PIN, DOWEL - GEAR HOUSING
3	16-33778	STUD, WATER PUMP BODY/BASE TO GEAR HOUSING (2 5/8")
4	16-8M0034453	STUD, GEAR HOUSING TO DRIVE SHAFT HOUSING (2 3/16")
5	31-62091T	BEARING, ROLLER - DRIVE UNIT
6	72849A1	SCREEN, WATER INTAKE - PORT
7	10-36070	SCREW, 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	46-77516A1	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, LOWER - WATER PUMP BASE TO FACE PLATE
20	32768	PLATE, FACE - WATER PUMP BASE TO WATER PUMP BODY
21	27-19551	GASKET, UPPER - 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	11-826709109	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
33	19-48750	PLUG, GEAR HOUSING FLUSHING HOLE
34	12-8M0204663	WASHER, GEAR HOUSING FLUSHING HOLE
35	69787A1	SHAFT ASSEMBLY, SHIFT - LOWER Comment: UNITED STATES 4280270 AND UP AUSTRALIA NONE BUILT BELGIUM 9100589 AND UP CANADA 7060608 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 BUSHING (LOWER)
40	26-892361	OIL SEAL, SHIFT SHAFT BUSHING (UPPER)
41	12-31266	WASHER, RUBBER - SHIFT SHAFT BUSHING
42	78036	BASE, LOWER - REVERSE LOCKING
43	69542	CAM, REVERSE LOCKING Comment: UNITED STATES 4280270 AND UP AUSTRALIA NONE BUILT BELGIUM 9100589 AND UP CANADA 7060608 AND UP
44	45-76088A2	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	15-20929A1	,SHIM, BEARING TO GEAR HOUSING (.002-3-5-10)
49	31-38146A1	ROLLER BEARING ASSEMBLY, TAPERED - DRIVE SHAFT

▶GEAR HOUSING ASSEMBLY, COMPLETE (PAGE 2) (36 parts)

Ref	OEM Part #	Part Name
-	1643-6038A7	GEAR HOUSING ASSEMBLY, COMPLETE (LONG SHAFT) Comment: SEE NOTE BELOW UNITED STATES 4280270 AND UP AUSTRALIA NONE BUILT BELGIUM 9100589 AND UP CANADA 7060608 AND UP
1	1643-6038A6	GEAR HOUSING ASSEMBLY (SEE PAGE 34 FOR PARTS BREAKDOWN)
50	760394	CAM, SHIFT Comment: UNITED STATES 4280270 AND UP AUSTRALIA NONE BUILT BELGIUM 9100589 AND UP CANADA 7060608 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 HSG. (.002-3-5-10)
55	31-38356A1	TAPERED ROLLER BEARING ASSEMBLY
56	31-21739	BEARING, ROLLER - FORWARD GEAR
57	43-55608T4	FORWARD GEAR ASSEMBLY
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
62	43-79158T	REVERSE GEAR ASSEMBLY
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, DRIVE SHAFT HOUSING TO GEAR HOUSING (3/8")
78	12-65791	WASHER, DRIVE SHAFT HOUSING STUD (7/16")
79	11-8M0204653	NUT, DRIVE SHAFT HOUSING TO GEAR HOUSING (7/16")
80	65758	THRUST HUB, FRONT
81	62124A1	THRUST HUB ASSEMBLY, REAR
82	12-31992	WASHER, CUPPED - THRUST HUB
83	11-69578Q1	NUT, PROPELLER

▶IGNITION DRIVER AND PILOT ASSEMBLY (56 parts)

Ref	OEM Part #	Part Name
--	23-29909	SPACER, DRIVE PULLEY
1	333-4674A3	IGNITION DRIVER ASSEBMLY, COMPLETE
2	45-27951	SHFT, IGNITION DRIVE
3	47883A1	PILOT ASSEMBLY, IGNITION DRIVE
4	10-96138	SCREW, ADAPTOR AND PILOT TO IGNITION DRIVE (5/8")
5	30-20066	BALL BEARING, IGNITION DRIVE PILOT
6	24-27944	SPRING, HORESHOE - IGNITION DRIVE PILOT
7	17-27962	PIN, ANCHOR - HORSESHOE SPRING TO ANCHOR PIN
8	12-8M0204649	WASHER, HORSESHOE SPRING TO ANCHOR PIN
9	48103A1	EXONOMIZER COLLAR AND PIN ASSEMBLY
10	17-27961	PIN, ECONOMIZER COLLAR - SPRING RETAINER
11	22-25094	FITTING, GREASE - ECONOMIZER COLLAR
12	66778T	PLATE, THROTTLE ACTUATOR
13	10-46420	SCREW, TRHOTTLE ACTUATOR TO ECONOMIZER COLLAR (1/2")
14	10-23015	SCREW, ADJUSTING - THROTTLE ACTUATOR (1")
15	11-68219	NUT, THROTTLE ACTUATOR ADJUSTING SCREW
16	48039	CAP, THROTTLE ACTUATOR ADJUSING SCREW
17	12-46246	WASHER, IGNITION DRIVE PILOT TO ADAPTOR
18	66856A1	ADAPTOR, IGNITION DRIVE
19	10-74824	SCREW, ADAPTOR AND PILOT TO CRANKCASE (1-1/4")
20	12-20084	WASHER, ADAPTOR AND PILOT TO CRANKCASE SCREW
22	22-25094	FITTING GREASE - IGNITION DRIVE ADAPTOR
23	12-27939	WASHER, IGNITION DRIVER PILOT
24	14-27960	TAB WASHER, ADAPTOR CAP FASTENING
25	13-27959	WASHER, WAVE - IGNITION DRIVER BALL BEARING TENSION
26	27955	CAP, IGNITION DRIVE ADAPTOR AND PILOT FASTENING
27	28-28657	KEY, IGNITION DRIVE
28	29784	HUB, DRIVEN PULLEY
29	29783A1	DRIVE PULLEY ASSEMBLY
30	17-24873	PIN, ROLL - FLANGE
31	29785	FALNGE, DRIVEN PULLEY
32	12-20138	WASHER, PULLEY SCREW
33	10-64652	SCREW, PULLEY (5/8")
34	20140	BELT, TIMING
35	53458	PLATE, THROTTLE STOP
36	10-28668	SCREW, THROTTLE STOP PLATE TO ADAPTOR (7/8")
37	10-20012	SCREW, THROTTLE STOP ADJUSTING (1 5/8")
38	11-20013	NUT, THROTTLE STOP ADJUSTING SCREW
39	26852	CAP, MYLON - ADJUSTING SCREW
40	27947	SWIVEL, LINKAGE - ECONOMIZER COLLAR
41	66552	LINK ROD
42	27948	SWIVEL, UPPER LINK ROD TO THROTTLE CONTROL LEVER
43	53143A2	LEVER, THROTTLE CONTROL
44	23-45818	BUSHING, THROTTLE LEVER SCREW
45	10-47273	SCREW, THROTTLE LEVER TO EXHAUST COVER (1 1/2")
46	12-8M0042641	WASHER, THROTTLE LEVER SCREW
47	39483	LATCH, THROTTLE CONTROL LEVER (THROTTLE CABLE)
48	10-69026	SCREW, LATCH TO THROTTLE CONTROL LEVER (7/8")
49	24-20099	SPRING, COMPRESSION - LATCH SCREW
50	11-826709109	NUT, LATCH SCREW
51	12-8M0204649	WASHER, UPPER SWIVEL TO THROTTLE LEVER
52	11-826709109	NUT, UPPER SWIVEL TO THROTTLE LEVER
53	33-896329827	SPARK PLUG (CHAMPION L-76-V)
54	45391	SPACER, IGNITION WIRE
55	53-78201	BRACKET, TAB - CRANKCASE - IGNITION DRIVER GROUND STRAP
56	10-62568	SCRW, IGNITION DRIVER GROUND STRAP TO TAB BRACKET (3/8")

▶IGNITION DRIVER ASSEMBLY, COMPLETE (38 parts)

Ref	OEM Part #	Part Name
-	333-4674A3	IGNITION DRIVER ASEMBLY, COMPLETE
--	59126	SEPARATOR, IGNITION LEADS
1	333-4674A3	HOUSING, IGNITION DRIVER
2	10-47183	SCREW, SET - COIL ASSEMBLY FASTENING
3	333-3172A1	TERMINAL BOARD ASSEMBLY, IGNITION DRIVER
4	10-47182	SCREW, TERMINAL BOARD ASSEBMLY FASTENING (1/2")
5	333-3175	COIL ASSEMBLY, IGNITION DRIVER (RED)
6	333-3176	COIL ASSEMBLY, IGNITION DRIVE (BLUE)
7	333-3173	HARNESS, PRIMARY CABLE - IGNITION DRIVER
8	54-47188	CLAMP, PRIMARY HARNESS CABLE - IGNITIN DRIVER
9	10-28259	SCREW, PRIMARY HARNESS CABLE FASTENING (5/8")
10	30-24998	BEARING, BALL - DRIVER END (1 3/8" O.D.)
11	333-4674A3	SHAFT ASSEMBLY, IGNITION DRIVER
12	30-49090	BEARING, BALL - IGNITION DRIVER END (1 1/4" O.D.)
13	333-3166	CAP, BEARING - IGNITION DRIVER HOUSING
14	10-37656	SCREW, BEARING CAP FASTENING (9/16")
15	333-3143	ROTOR ASSEMBLY, IGNITION DRIVER
16	54-47187	SPRING, CLIP - IGNIITION DRIVER ROTOR
17	27-61031	GASKET, IGNITION DRIVER COVER
18	333-4639A1	COVER, IGNITION DRIVER
19	10-20189	SCREW, IGNITION DRIVER COVER FASTENING 3/4"
20	14-29157	TAB WASHER, IGNITION DRIVER COVER FASTENING SCREW
21	58807A1	FLAME ARRESTOR, IGNITION DRIVER COVER
22	333-3142A3	CAP ASSEMBLY, IGNITION DRIVER
23	333-3165A1	BRUSH AND SPRING ASSEMBLY
24	27-47190	GASKET, IGNITION DRIVER CAP
25	394-1134A2	GROUND STRAP ASSEMBLY
26	10-73013	SCREW, IGNITION DRIVER CAP FASTENING (1 1/2")
27	14-29157	TAB WASHER, IGNITION DRIVER CAP FASTENING SCREW
28	1504-250A1	LEAD ASSEMBLY, HIGH TENSION DRIVER TO COIL
29	25-26547	GROMMET, COIL WIRE BRACKET
30	332-2854T01	BOOT, HIGH TENSION LEAD CABLE
31	84-813715A1	SPARK PLUG LEAD ASSEMBLY (27 1/2") Comment: ORDER A-36549A1 KIT FOR REPLACEMENT OF LEAD WIRE MARKERS
32	32-46768	SLEEVE, SPARK PLUG LEAD (6")
33	85-63709A1	PROTECTOR ASSEMBLY, SPARK PLUG LEADS
34	54-22627	CLIP, IGNITION DRIVER LEAD
35	10-25764	SCREW, IGNITION DRIVE LEAD TO SWITCH BOX (1/2")
36	8M0084613	"D" WASHER, IGNITION DRIVER LEAD SCREW

▶MISCELLANEOUS PARTS/ACCESSORIES (1 parts)

Ref	OEM Part #	Part Name
-	52552A3	MODULE ASSMEBLY

▶STARTER HOUSING (37 parts)

Ref	OEM Part #	Part Name
1	11-20166	NUT, SHEAVE SHAFT (LEFT HAND THREAD)
2	14-61004	TAB WASHER, SHEAVE SHAFT NUT
3	57237	HOUSING, STARTER
4	10-90073	SCREW, 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 STARTER 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	RETAINER, WAVE WASHER
17	12-57837	WASHER, WAVE WASHER RETAINER
18	13-20160	WASHER, WAVE - RETAINER TENSION
19A	66848	RETAINER, SPRING
20	66845	PLATE, RETAINER - STARTER PAWL
21	12-57860	WASHER, WEAR - STARTER PAWL
22	61003	SHAFT, SHEAVE
23	47341A11	STARTER CABLE (FOR MANUAL STARTING OF ELECTRIC ENGINE)
24	28747	HANDLE, STARTER CABLE
25	79470A1	RETAINER, STARTER CABLE AND HANDLE
26	70969	CABLE ASSEBMLY INTERLOCK
27	10-32228	SCREW, INTERLOCK CABLE TO EXHAUSE PLATE (5/8")
28	10-69022	SCREW, INTERLOCK CABLE TO STARTER HOUSING (1/2")
29	13-27660	LOCKWAHSER, INTERLOCK CABLE SCREW
30	12-26013	WASHER, INERLOCK 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, INERLOCK 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

▶STARTER MOTOR, STARTER SOLENOID, RECTIFIER AND WIRING HARNES (50 parts)

Ref	OEM Part #	Part Name
1	333-3213A3	SWITCH BOX ASSEMBLY, COMPLETE
2	11-45076	NUT, SWITCH BOX TERNINAL
3	10-69030	SCREW, SWITCH BOX TO FRONT SUPPORT BRACKET (5/8")
4	8M0058226	RECTIFIER ELECTRIC ELECTRIC
5	13-8M0204647	LOCKWASHER, RECTIFIER TO FRONT BRACKET ELECTRIC
6	11-28770	NUT, RECTIFIER TO FRONT BRACKET ELECTRIC
7	23-28458	SPACER, RECTIFIER TO FRONT BRACKET ELECTRIC
8	10-20055	SCREW, RECTIFIER TERMINALS (3/8") ELECTRIC
9	11-8M0204718	NUT, RECTIFIER TERMINALS ELCTRIC
10	32-28373	SLEEVE, RECTIFIER TERMINALS ELCTRIC
11	59757	BRACKET, RETAINER - HIGH TENSION LEAD
12	10-49987	SCREW, RETAINER BRACKET TO SUPPORT BRACKET (1 1/2"0
13	11-826709109	NUT, RETAINER BRACKET SCREW
14	50-55601A2	STARTER MOTOR ASSEMBLY ELECTRIC
15	10-52446	SCREW, STARTER MOTOR TO CRANKCASE FLANGE (1 5/8") ELECTRIC
16	13-8M0204647	LOCKWASHER, STARTER MOTOR SCREW ELECTRIC
17	84-71441	WIRE, STARTER MOTOR TO SOLENOID AND TOP MOUNT ELECTRIC
18	10-69035	SCREW, GROUND WIRE TO STARTER MOTOR (5/8") ELECTRIC
19	13-26992	LOCKWASHER, GROUND WIRE FASTENING SCREW ELECTRIC
20	11-20890	NUT, GROUND WIRE SCREW ELECTRIC
21	89-853654A1	STARTER SOLENOID ELECTRIC
22	10,13-26996	LOCKWASHER, SOLENOID TERMINAL ELECTRIC
23	10,11-68219	NUT, SOLENOID TERMINAL ELECTRIC
24	13-8M0204647	LOCKWASHER, SOLENOID TERMINAL (5/16"0 ELECTRIC
25	11-26062	NUT, CAP - SOLENOID TERMINAL (5/16") ELECTRIC
26	46265	BOOT, TERMINAL - STARTER SOLENOID ELECTRIC
27	10-28635	SCREW, SOLENOID TO SUPPORT BRACKET (3/4") ELECTRIC
28	13-26992	WASHER, STARTER SOLENOID SCREW ELECTRIC
29	84-65773A2	GROUND STRAP ASSEMBLY ELECTRIC
30	84-71443A1	WIRING HARNESS (INTERNAL) ELECTRIC
31	24-28975	SPRING, GARTER - INTERNAL WIRING HARNESS ELECTRIC
32	54-76368	CLAMP, WIRING HARNESS ELECTRIC
33	10-45862	SCREW, WIRING HARNESS CLAMP TO BOTTOM COWL (7/8") ELECTRIC
34	13-26996	LOCKWASHER, WIRING HARNESS CLAMP SCREW ELECTRIC
35	12-847883	WASHER, WIRING H ARNESS CLAMP SCREW ELECTRIC
36	61990	STA-STRAP, WIRING HARNESS ELECTRIC
37	332-4895T2	IGNITION COIL ASSEMBLY
38	72015	PAD, RUBBER - IGNITION COIL
39	63195	COVER, CASTING - COIL
40	10-60194	SCREW, IGNITION COIL TO BRACKET (2 1/8")
41	13-26996	LOCKWASHER, IGNITION COIL SCREW
42	84-71440A1	WIRE ASSEMBLY, COIL TO SWITCH BOX (GREEN)
43	10,12-89302	WASHER, IGNITION COIL TERMINAL
44	10,11-45076	NUT, IGNITION COIL TERMINAL
45	10-45218	SCREW, IGNITION COIL WIRE TO SWITCH BOX (3/8")
46	70014	BRACKET, IGNITION COIL (REAR)
47	70012	BRACKET, IGNITION COIL
48	10-36154	SCREW, COIL BRACKET TO BOTTOM COWL (1 3/8")
49	10-36137	SCREW, COIL BRACKET TO BOTTOM COWL (1")
50	13-26992	LOCKWASHER, COIL BRACKET SCREW

▶TOP COWL ASSEMBLY (31 parts)

Ref	OEM Part #	Part Name
1	2117-4068A1	TOP COWL (ELECTRIC)
2	55455	HOOK, TOP COWL LATCH - 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 SHILD TO TOP COWL
7	13-37371	LOCKWASHER, REAR SHILD SCREW
8	55459A5	RETAINER ASSEMBLY, TOP COWL
9	35496	PAD, BUMPER-TOP COWL REATINER
10	10-35386	SCREW, RETAINER TO TOPE COWL (1")
11	13-39107	LOCKWASHER, RETAINER 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
16	720201	BRACKET, REAR COWL SUPPORT
17	25-52723	GROMMET, LIMIT STOP - REAR COWL SUPPORT BRACKET
18	60577	MOUNT, RUBBER - REAR SUPPORT BRACKET
19	12-69056	WASHER, REAR SUPPORT BRACKET RUBBER MOUNT
20	11-826709109	NUT, REAR SUPPORT BRACKET RUBBER MOUNT
21	60785A2	BRACKET ASSEMBLY, FRONT SUPPORT
22	37921	FLANGE, RUBBER - FRONT SUPPORT BRACKET
23	37-46397	DECAL, TIMING - FRONT SUPPORT BRACKET
24	31014	MOUNT, RUBBER - FRONT SUPPORT BRACKET
25	32-23046	WASHER, FRONT SUPPORT BRACKET RUBBER MOUNT
26	11-826709109	NUT, FRONT SUPPORT BRACKET RUBBER MOUNT
27	10-37562	SCREW, FRONT SUPPORT BRACKET TO BOTTOM COWL (1")
28	54-24836	CLIP, SOLENOID LEAD AND HARNESS TO SUPPORT BRACKET ELECTRIC
29	10-69079	SCREW, CHOKE SOLENOID CLIP ATTACHING (7/16") ELECTRIC
30	8M0084613	D WASHER, CHOKE SOLENOID CLIP SCREW ELECTRIC
31	32-8M0108355	TUBE, DRAIN - FRONT SUPPORT BRACKET TO BOTTOM COWL

100-Hour / Annual Service Checklist

Regular maintenance keeps your Mercury 500 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.

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