Mercury 800 (4 CYL.), 80 (4 CYL.) (2559001 THRU 3493912) Parts & Diagrams

🔎 Mercury 800 (4 CYL.), 80 (4 CYL.) Reference Library — Exploded parts diagrams (18 diagrams), specifications, common issues, and maintenance checklist.

The Mercury 800 (4 CYL.), 80 (4 CYL.) is a 4-Stroke, Inline 4-Cylinder, EFI, SOHC outboard motor. Suited for bay boats, pontoons, and center-console fishing boats requiring reliable mid-range power.

Quick Reference Specifications

Specification	Value
Engine Type	4-Stroke, Inline 4-Cylinder, EFI, SOHC
Horsepower	80 HP
Displacement	2100 cc
Bore x Stroke	90 mm x 81 mm
Spark Plug (Type & Gap)	NGK IZFR6F-11
Engine Oil Capacity	5.2 L (5.5 quart)
Recommended Engine Oil	Mercury FourStroke Oil 10W-30
Gear Case Oil Capacity	710 mL (24 fl oz)
Idle Speed (in gear)	650–700 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 800 (4 CYL.), 80 (4 CYL.):

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 800 (4 CYL.), 80 (4 CYL.).

▶BOTTOM COWL AND SHIFT LINKAGE (56 parts)

Ref	OEM Part #	Part Name
1	2115-3919	COWL, BOTTOM Comment: SERIAL 02881082-09999999
2	52862A2	DRIP TRAY ASSEMBLY, BOTTOM COWL
3	37940	PAD, SOUND-DRIP TRAY
4	10-35519	SCREW, DRIP TRAY TO BOTTOM COWL (1/2")
5	32-8M0108355	HOSE, DRIP TRAY TO BOTTOM COWL (8")
6	39616	BOOT, CONTROL CABLES-BOTTOM COWL Comment: SERIAL 02221082-09999999
7	23760	BAFFLE, BOTTOM COWL Comment: SERIAL 00000000-03148653
8	10-52867	SCREW, BAFFLE TO BOTTOM COWL Comment: SERIAL 00000000-03148653
9	37637	BOOT, FUEL CONNECTOR-BOTTOM COWL
10	37445	SUPPORT, WIRING HARNESS-BOTTOM COWL
11	10-69029	SCREW, WIRING HARNESS SUPPORT TO BOTTOM COWL (1 3/4")
12	11-8M0207775	NUT, WIRING HARNESS SUPPORT SCREW
13	32-8M0108355	HOSE, TELL TALE-EXHAUST COVER TO BOTTOM COWL (16")
14	52889	NOZZLE, TELL TALE HOSE TO BOTTOM COWL
15	10-35519	SCREW, TELL TALE NOZZLE TO BOTTOM COWL (1/2")
16	22-996642	ELBOW, TELL TALE HOSE TO EXHAUST COVER
17	54-48123	CLAMP, TELL TALE HOSE TO CONNECTOR AND ELBOW
18	27-56304	GASKET, POWERHEAD TO EXHAUST EXTENSION PLATE Comment: SERIAL 02783253-09999999
19	56306A2	PLATE ASSEMBLY, EXHAUST EXTENSION Comment: SERIAL 02783253-09999999
20	26-38970	SEAL, RUBBER-WATER INLET TUBE Comment: SERIAL 02783253-09999999
21	38448	RETAINER, WATER TUBE SEAL Comment: SERIAL 02783253-09999999
22	10-69069	SCREW, RETAINER TO EXTENSION PLATE (3/4") Comment: SERIAL 02783253-09999999
23	10-24226	SCREW, EXTENSION PLATE TO DRIVE SHAFT HOUSING (1 1/4")
24	11-8M0207775	NUT, EXHAUST EXTENSION PLATE SCREW
25	27-48801	GASKET, EXHAUST EXTENSION PLATE TO DRIVE SHAFT HOUSING
26	37918	SEAL, EXHAUST EXTENSION PLATE
27	99358	STRIP, RETAINING-EXHAUST EXTENSION PLATE SEAL
28	10-37571	SCREW, SEAL AND STRIP TO EXHAUST EXTENSION PLATE (1/2")
29	60304A54	SHIFT SHAFT ASSEMBLY, UPPER (LONG SHAFT) Comment: SERIAL 02667725-09999999
30	93960A1	COUPLING, SHIFT SHAFT Comment: SERIAL 02667725-09999999
31	23-26600	BUSHING, SHIFT SHAFT Comment: SERIAL 02667725-09999999
32	73402	LINK ROD ASSEMBLY
33	12-24664	WASHER, LINK ROD (SHIFT LEVER END)
34	13-29720	WASHER, WAVE-LINK ROD Comment: SERIAL 02783253-09999999
35	52732A6	BRACKET ASSEMBLY, ANCHOR CONTROL CABLES Comment: SERIAL 00000000-02786462
36	49935	CAP, BRASS BARREL OF THROTTLE CABLE Comment: SERIAL 00000000-02786462
37	49932A1	LEVER ASSEMBLY, CONTROL CABLE LOCKING-ANCHOR BRACKET Comment: SERIAL 00000000-02786462
38	24-37911	SPRING, CONTROL CABLE LOCKING LEVER Comment: SERIAL 00000000-02786462
39	17-239281	PIN, ROLL-CONTROL CABLE LOCKING LEVER Comment: SERIAL 00000000-02786462
40	24-38472	SPRING, CABLE TENSION-ANCHOR BRACKET Comment: SERIAL 00000000-02786462
41	52732A6	BRACKET, ANCHOR-CONTROL CABLES Comment: SERIAL 02881082-09999999
42	39519	CAP, BARREL RETAINER-ANCHOR BRACKET Comment: SERIAL 02881082-09999999
43	87609A1	LEVER, NYLON-SHIFT CABLE LOCKING Comment: SERIAL 02881082-09999999
44	17-47175	PIN, LOCKING LEVER AND COVER FASTENING Comment: SERIAL 02881082-09999999
45	39667	COVER, NYLON-SHIFT CABLE Comment: SERIAL 02881082-09999999
46	39536	LINK, LOCKING LEVER TO COVER Comment: SERIAL 02881082-09999999
47	10-35386	SCREW, ANCHOR BRACKET TO CYLINDER BLOCK (1")
48	24-20099	SPRING, LINK ROD TO GUIDE BLOCK
49	37896	GUIDE BLOCK, LINK ROD
50	52100	WEAR PLATE, LINK ROD
51	8M0036768	LATCH, CONTROL CABLE FASTENING-ANCHOR BRACKET
52	12-69056	WASHER, CONTROL CABLE LATCH LINK ROD
53	11-826709109	NUT, LINK ROD
54	46933A1	GROUND STRAP ASSEMBLY, CRANKCASE TO BOTTOM COWL
55	46933A2	GROUND STRAP ASSEMBLY, DRIVE SHAFT HOUSING TO BOTTOM COWL
56	10-62568	SCREW, GROUND STRAP ATTACHING (3/8")

▶CARBURETOR ASSEMBLY (23 parts)

Ref	OEM Part #	Part Name
--	1395-51091	REPAIR PARTS KIT (1 PER CARBURETOR) Comment: SERIAL 03051041-09999999
1	1352-4440A1	CARBURETOR ASSEMBLY, COMPLETE (WMK-2) Comment: SERIAL 03051041-09999999
2	1395-8673	FLOAT ASSEMBLY
6	1395-83181	INLET NEEDLE, SEAT AND GASKET Comment: SERIAL 03051041-09999999
9	1399-4559	COVER, FLOAT BOWL Comment: SERIAL 03051041-09999999
10	10-52195	SCREW, FLOAT BOWL COVER (SHORT)
11	10-52196	SCREW, FLOAT BOWL COVER (LONG)
12	13-26995	LOCKWASHER, FLOAT BOWL COVER SCREW
14	1399-3938	SCREEN, FILTER
16	1399-4791A1	COVER, STRAINER-LOWER CARBURETOR Comment: SERIAL 03051041-09999999
18	10-25822	SCREW, STRAINER COVER FASTENING
19	1395-6027	SCREW, THROTTLE STOP LEVER
20	8146791	LEVER, THROTTLE STOP Comment: USED ON LOWER CARBURETOR ONLY--REPLACED WITH A-52518 CLUSTER ON UPPER CARBURETOR.
21	1395-7942	SHAFT, THROTTLE
23	1395-4540	SCREW, BODY (IDLE TUBE) Comment: SERIAL 03051041-09999999
26	1395-9017	SHUTTER, THROTTLE
28	1399-3515	SCREW, IDLE ADJUSTMENT
29	1395-4541	SCREW, PLUG-MAIN FUEL JET CHANNEL Comment: SERIAL 03051041-09999999
31	1395-6030	JET, MAIN FUEL (.070)
33	1395-4542	SCREW, PLUG-MAIN NOZZLE Comment: SERIAL 03051041-09999999
36	1395-4543	SCREW, BODY CHANNEL Comment: SERIAL 03051041-09999999
37	27-481641	GASKET, CARBURETOR FLANGE
38	11-29250	NUT, CARBURETOR MOUNTING STUD

▶CARBURETOR LINKAGE AND CHOKE SOLENOID (31 parts)

Ref	OEM Part #	Part Name
--	24-57818	SPRING, FILTER SCREEN Comment: SERIAL 02885850-09999999
1	54293A10	CHOKE SOLENOID Comment: SERIAL 02783253-09999999
2	13-26996	LOCKWASHER, HARNESS LEAD TO CHOKE SOLENOID
3	11-68219	NUT, WIRE HARNESS LEAD TO CHOKE SOLENOID
4	10-25299	SCREW, CHOKE SOLENOID ATTACHING (3/4")
5	13-8M0204647	LOCKWASHER, CHOKE SOLENOID ATTACHING SCREW
6	90548A1	PLUNGER/LINK ASS'Y, CHOKE SOLENOID Comment: SERIAL 02783253-09999999
7	52518	CLUSTER, THROTTLE LEVER
8	1395-6027	SCREW, CLUSTER TO THROTTLE LEVER
9	1352-4440A1	CARBURETOR ASSEMBLY, COMPLETE (SERIAL #3051041 AND UP)
10	53720A2	THROTTLE PICK-UP COUPLING ASSEMBLY
11	10-53651	SCREW, THROTTLE COUPLING MOUNTING (3/4")
12	28-89694	INSERT, THROTTLE COUPLING
13	10-657461	STUD, CHOKE ROD SPRING TO CARBURETOR (7/8")
14	23-32427	SPACER, CHOKE ROD SPRING STUD
15	11-8M0207775	NUT, CHOKE ROD SPRING TO CARBURETOR STUD
16	24-48230	SPRING, TENSION-CHOKE ROD
17	90242A1	KNOB, CHOKE ROD
18	25-20116	GROMMET, CHOKE ROD
19	49589	STRAP, CHOKE KNOB TO CHOKE ROD
20	10-69022	SCREW, STRAP TO CHOKE KNOB (1/2")
21	13-26996	LOCKWASHER, STRAP SCREW
22	48203	ROD, CHOKE
23	10-69022	SCREW, STRAP TO CHOKE ROD
24	11-46438	NUT, STRAP TO CHOKE ROD SCREW
25	48152	SHUTTER, CHOKE-CARBURETOR
26	16-69037	STUD, FILTER SCREEN TO CARBURETOR (1 1/8")
27	11-20110	NUT, CHOKE SHUTTER STUD
28	35-57819	SCREEN, FILTER-CARBURETOR Comment: SERIAL 02885850-09999999
29	10-23015	SCREW, FILTER SCREEN TO CARBURETOR Comment: SERIAL 02885850-09999999
30	11-20110	NUT, CARBURETOR SCREEN SCREW

▶CLAMP AND SWIVEL BRACKET ASSEMBLY (58 parts)

Ref	OEM Part #	Part Name
--	11-8M0207775	NUT, LOWER SHOCK PIN SCREW -LONG SHAFT
1	1440-8394A1	CLAMP BRACKET ASSEMBLY
2	28403A3	THUMB SCREW ASSEMBLY
3	12-28404	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 TRANSOM (3")
15	12-68300	WASHER, CLAMP BRACKET BOLT
16	11-82670912	NUT, CLAMP BRACKET BOLT
17	55-28416	PIN, UPPER SHOCK MOUNTING
18	1482-6386A4	SWIVEL BRACKET ASSEMBLY (LONG SHAFT)
19	26-37448	OIL SEAL, SWIVEL BRACKET
20	10-47828	SCREW, DRIVE-SWIVEL BRACKET
21	22-69059	FITTING, GREASE
22	19-77633Q	LUBRICAP, SWIVEL BRACKET GREASE FITTING Comment: SERIAL 02783253-09999999
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	23-47803	BUSHING, TILT LOCK TUBE
28	13-69150	WASHER, WAVE-TILT LOCK TUBE
29	17-49840A1	SWIVEL PIN AND STEERING ARM ASSEMBLY (LONG SHAFT)
30	28203	BUMPER, STEERING ARM
31	10-30453	BOLT, STEERING ARM TO UPPER MOUNT (5 1/2")
32	11-8M0204653	NUT, STEERING ARM BOLT FASTENING
33	12-37429	WASHER, SWIVEL PIN-LOWER (TOP WASHER OPTIONAL)
34	10-31830	SCREW, RIDE-GUIDE ATTACHING (1 3/4")
35	11-8M0204726	NUT, RIDE-GUIDE ATTACHING SCREW
36	38-56267	SERIAL PLATE
37	10-25612	SCREW, DRIVE-SERIAL PLATE TO SWIVEL BRACKET
38	17-25598	PIN, REVERSE LOCK SPRING ATTACHING
39	28205T	STRAP STOP, DRIVE SHAFT HOUSING TO SWIVEL BRACKET
40	10-28200	SCREW, STRAP STOP TO DRIVE SHAFT HOUSING (2 7/8")
41	11-25269	NUT, STRAP STOP FASTENING SCREW
42	73984T	YOKE, BOTTOM Comment: SERIAL 02783253-09999999
43	11-37424	NUT, SWIVEL PIN RETAINING
44	55-28414	PIN, LOWER SHOCK MOUNTING-LONG SHAFT
45	24-29821	SPRING, REVERSE LOCK TENSION
46	87431	REVERSE LOCK ASSEMBLY
47	56349	SHAFT, REVERSE LOCK PIVOT
48	18-45882	COTTER PIN, REVERSE LOCK TO SHAFT
49	23-28199	SPACER, UPPER SHOCK BUSHING TO CLAMP BRACKET
50	12-28196	WASHER, UPPER BUSHING RETAINER (INNER)
51	12-59378	WASHER, LOWER BUSHING RETAINER (INNER) Comment: SERIAL 02986444-09999999
52	55-58780A7	SHOCK ABSORBER
53	23-32171	BUSHING, RUBBER-SHOCK ABSORBER (UPPER)
54	23-28198	BUSHING, RUBBER-SHOCK ABSORBER (LOWER)
55	12-8M0204648	WASHER, UPPER AND LOWER BUSHING RETAINER (OUTER)
56	10-69375A1	SCREW, UPPER AND LOWER SHOCK MOUNTING PIN (3/4")
57	70679	COVER, UPPER AND LOWER SHOCK MOUNTING PIN

▶COWLING AND FRONT COVER (13 parts)

Ref	OEM Part #	Part Name
--	92-86166Q1	GLUE, ADHESIVE - SOUND BLANKET FASTENING
1	2182-7927A8	COWL FRONT COVER ASSEMBLY Comment: SERIAL 03186263-09999999
2	56849	KNOB, COWL FRONT COVER FASTENING
3	12-30771	WASHER, COVER FASTENING KNOB (RUBBER)
4	12-59572	WASHER, COVER FASTENING KNOB (STEEL)
5	24-30772	SPRING, TENSION - COVER FASTENING KNOB
6	17-29077	ROLL PIN, TENSION SPRING TO KNOB
7	71040	BLANKET, SOUND ABSORBING - FRONT COVER
8	54143	SEAL, SOUND - UPPER
9	2119-3248A16	WRAP AROUND COWL ASSEMBLY
10	46785A1	COWL LATCH ASSEMBLY
11	30413	HOOK, COWL LATCH FASTENING
12	54141A1	BLANKET ASS'Y SOUND ABSORBING - WRAP AROUND COWL

▶CRANKSHAFT, PISTON AND CONNECTING ROD (32 parts)

Ref	OEM Part #	Part Name
--	39-78811A12	RING, PISTON (.015) Comment: OVERSIZE PISTON AND RING
1	440-9074A2	CRANKSHAFT ASSEMBLY
2	30-62567T	BEARING, BALL-UPPER
3	30-63742T	BEARING, BALL-LOWER
4	25-8M0214919	"O"RING, DRIVE SHAFT SPLINE Comment: SERIAL 00000000-03059820
5	54196A6	CARRIER ASSEMBLY, "O"RING Comment: SERIAL 03144219-09999999
6	25-35126	"O" RING, CARRIER Comment: SERIAL 03144219-09999999
7	540-5266T5	MAIN BEARING ASSEMBLY (VALVE TYPE) Comment: SERIAL 02783253-09999999
8	17-20032	DOWEL PIN, MAIN BEARING Comment: SERIAL 02783253-09999999
9	10-45775	SCREW, MAIN BEARING CLAMPING Comment: SERIAL 02783253-09999999
10	11-45774	NUT, MAIN BEARING CLAMPING SCREW Comment: SERIAL 02783253-09999999
11	34-56007A1	REED SET, MATCHED-MAIN BEARING Comment: SERIAL 02783253-09999999
12	34-56008	REED STOP, MAIN BEARING REED VALVES Comment: SERIAL 02783253-09999999
13	10-62204	SCREW, REED STOP MOUNTING Comment: SERIAL 02783253-09999999
13A	11-53153	NUT, REED STOP MOUNTING SCREW Comment: SERIAL 02783253-09999999
14	535-3190A2	CENTER MAIN BEARING ASSEMBLY
15	17-20032	DOWEL PIN, CENTER MAIN BEARING
16	29-714221	BEARING, NEEDLE
17	26113T	RACE, OUTER (PAIR)
18	53-26933	RING, SNAP-OUTER RACE CLAMPING
19	10-22968	SCREW, CENTER MAIN BEARING CLAMPING
20	11-8M0207775	NUT, MAIN BEARING CLAMPING SCREW
21	17-47246	DOWEL PIN (STEPPED)
22	774-9137A12	PISTON AND PISTON PIN ASSEMBLY
23	53-857196	LOCK RING, PISTON PIN
24	39-78816A12	RING, PISTON
25	624-8101A3	CONNECTING ROD AND CAP ASSEMBLY
26	10-54803	SCREW, CAP TO CONNECTING ROD
27	11-49091	NUT, CONNECTING ROD SCREW
28	31-62596A1	BEARING ASSEMBLY, CRANKPIN
29	29-8M0214934	BEARING, NEEDLE-PISTON PIN
30	12-8M0032839	WASHER, NEEDLE LOCATING

▶CYLINDER BLOCK AND CRANKCASE ASSEMBLY (56 parts)

Ref	OEM Part #	Part Name
--	12-22753	WASHER, CRANKCASE TO CYLINDER BLOCK SCREW (LOWER)
1	1134-3197A1	END CAP ASSEMBLY, UPPER
2	26-41953	OIL SEAL
3	25-47254	"O"RING
4	15-47248A1	SHIM ASSEMBLY, END CAP TO CRANKCASE (.006-8-10)
5	10-30225	SCREW, END CAP MOUNTING (1")
6	847-3920A4	CYLINDER BLOCK AND CRANKCASE ASSEMBLY (SERIAL #2986444 AND U
7	27-53650	GASKET, CRANKCASE TO CYLINDER BLOCK
8	16-64936	STUD, CARBURETOR MOUNTING (1 3/16")
9	16-64281	STUD, CRANKCASE TO DRIVE SHAFT HOUSING (1 7/8")
10	17-43044	PIN, DOWEL-CRANKCASE TO CYLINDER BLOCK
11	17-20323	PIN, DOWEL-CYLINDER BLOCK TO MAIN BEARING
11A	66517	RESTRICTOR, CRANKCASE BLEED
12	16-26134	STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (4 1/16")
13	16-48770	STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (3 9/16")
14	16-26324	STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (2 7/8")
15	10-32293	SCREW, CRANKCASE TO CYLINDER BLOCK (1 3/4")
16	10-69091	SCREW, CRANKCASE TO CYLINDER BLOCK (1 5/8")
17	11-29250	NUT, CRANKCASE FASTENING SCREW
18	10-20359	SCREW, CENTER MAIN BEARING LOCKING (1")
19	14-20091	TAB WASHER, BEARING LOCKING SCREW
20	1126-3196A3	END CAP ASSEMBLY, LOWER-SERIAL # AND UP Comment: SERIAL 02783253-09999999
21	21-42657A3	CHECK VALVE ASSEMBLY, END CAP Comment: SERIAL 02783253-09999999
22	26-41953	OIL SEAL, UPPER Comment: SERIAL 02783253-09999999
23	25-20081	"O"RING Comment: SERIAL 02783253-09999999
24	15-20085A1	SHIM, END CAP TO CRANKCASE (.002-3-5-10)
25	10-30225	SCREW, END CAP MOUNTING (1")
26	49993	COVER, WATER JACKET-CYLINDER BLOCK- Comment: PART OF CYLINDER BLOCK AND CRANKCASE ASSEMBLIES
27	27-73665	GASKET, WATER JACKET COVER Comment: PART OF CYLINDER BLOCK AND CRANKCASE ASSEMBLIES
28	10-53167T	SCREW, WATER JACKET COVER TO CYLINDER BLOCK (7/8") Comment: PART OF CYLINDER BLOCK AND CRANKCASE ASSEMBLIES
29	13-53166	LOCKWASHER, WATER JACKET COVER FASTENING SCREW Comment: PART OF CYLINDER BLOCK AND CRANKCASE ASSEMBLIES
30	27-52894	GASKET, CYLINDER BLOCK TO BAFFLE PLATE
31	52098T	PLATE, BAFFLE-EXHAUST MANIFOLD
32	27-52895	GASKET, BAFFLE PLATE TO EXHAUST MANIFOLD COVER
33	52166	COVER, EXHAUST MANIFOLD
34	10-38837	SCREW, MANIFOLD COVER MOUNTING (1 1/8")
35	1021-7699	COVER, CYLINDER BLOCK
36	27-85493	GASKET, CYLINDER BLOCK COVER
37	10-21091	SCREW, CYLINDER BLOCK COVER MOUNTING (1 1/8")
38	11-8M0207775	NUT, COVER MOUNTING SCREW
39	22-328022	PLUG, PIPE-CYLINDER BLOCK COVER
40	37440	BRACKET, MOUNT SUPPORT-CYLINDER BLOCK
41	10-35386	SCREW, BRACKET TO CYLINDER BLOCK (1")
42	62301	COVER, TRANSFER PORT-BOTTOM Comment: SERIAL 03307347-09999999
43	27-62107	GASKET, TRANSFER PORT COVER Comment: SERIAL 02783253-09999999
44	10-28636	SCREW, TRANSFER PORT COVER MOUNTING (3/4") Comment: SERIAL 02783253-09999999
45	22-67902	CONNECTOR, CYLINDER BLEED HOSE-UPPER
46	32-9912688	HOSE, UPPER CYLINDER BLEED (13 1/2")
47	22-62365A1	CHECK VALVE ASSEMBLY, BLEED HOSE
48	21-28481A1	CHECK VALVE ASSEMBLY
49	54-20387	CLAMP, BLEED HOSE TO CONNECTOR
50	32-8M0108355	TUBE, BALANCE-MAIN BEARING (2 7/8")
51	22-54153	TEE, BLEED HOSE TO CYLINDER BLOCK-LOWER
52	32-9912688	HOSE, CYLINDER BLEED-LOWER (8 1/2")
53	22-20781	ELBOW, BALANCE TUBE TO CRANKCASE
54	54-20386	CLAMP, BALANCE TUBE TO ELBOW AND TEE Comment: SERIAL 00000000-02670574

▶DISTRIBUTOR ADAPTOR AND VERTICAL LINKAGE (56 parts)

Ref	OEM Part #	Part Name
1	337-4479	HOUSING, DISTRIBUTOR Comment: SERIAL 03051040-03052380
2	32197	STOP, SPARK ADVANCE-DISTRIBUTOR HOUSING
3	17-27962	PIN, ANCHOR SPRING-DISTRIBUTOR HOUSING
4	24-27944	SPRING, HORSESHOE -DISTRIBUTOR HOUSING
5	12-53540	WASHER, ECONOMIZER COLLAR-DISTRIBUTOR HOUSING
6	55804A1	ECONOMIZER COLLAR ASSEMBLY Comment: SERIAL 02783253-09999999
7	17-27961	PIN, ECONOMIZER COLLAR-SPRING RETAINER
8	22-25094	FITTING, GREASE-ECONOMIZER COLLAR
9	27947	SWIVEL, LINKAGE-ECONOMIZER COLLAR
10	25996A1	SWIVEL AND LINK ROD ASSEMBLY
11	11-25168	NUT, UPPER LINK ROD ADJUSTING
12	37588	ROD, LINK-UPPER
13	27948	SWIVEL, UPPER LINK ROD TO THROTTLE CONTROL LEVER
14	48562	LEVER, THROTTLE CONTROL
15	13-25806	WASHER, WAVE-THROTTLE CONTROL LEVER SWIVEL
16	12-8M0204649	WASHER, THROTTLE CONTROL LEVER SWIVEL
17	11-8267089	NUT, UPPER LINK ROD TO THROTTLE CONTROL LEVER
18	10-31830	SCREW, THROTTLE LEVER TO EXHAUST COVER (1 3/4")
19	12-8M0042641	WASHER, THROTTLE CONTROL LEVER SCREW
20	23-45818	BUSHING, THROTTLE CONTROL LEVER SCREW
21	11-8M0204726	NUT, THROTTLE CONTROL LEVER SCREW
22	37587	SWIVEL, LOWER-THROTTLE CONTROL LEVER TO THROTTLE CABLE
23	11-8267089	NUT, THROTTLE CABLE TO LOWER SWIVEL
24	48692	COLLAR, THROTTLE ACTUATOR
25	10-61658	SCREW, ADJUSTING-ACTUATOR COLLAR (1 3/4") Comment: SERIAL 03186263-09999999
26	11-20890	NUT, THROTTLE ACTUATOR COLLAR ADJUSTING SCREW
27	52023	CAP, NYLON-THROTTLE ACTUATOR COLLAR ADJUSTING SCREW
28	48671	PLATE, THROTTLE ACTUATOR
29	10-37892	SCREW, THROTTLE ACTUATOR PLATE TO ECONOMIZER COLLAR (1")
30	12-847883	WASHER, THROTTLE ACTUATOR PLATE FASTENING SCREW
31	13-26996	LOCKWASH, THROTTLE ACTUATOR PLATE FASTENING SCREW
32	23-48674	SPACER, THROTTLE ACTUATOR PLATE SCREW
33	54239	CAM, THROTTLE ACTUATOR PLATE
34	12-46246	WASHER, ADAPTOR-DISTRIBUTOR HOUSING
35	66165A2	ADAPTOR ASSEMBLY, DISTRIBUTOR
36	22-25094	FITTING, GREASE-DISTRIBUTOR ADAPTOR
37	10-78841	SCREW, DISTRIBUTOR HOUSING TO CRANKCASE (1 1/2")
38	12-20084	WASHER, DISTRIBUTOR HOUSING SCREW
39	11-22053	NUT, DISTRIBUTOR HOUSING SCREW
40	55805	BRACKET, STOP Comment: SERIAL 02783253-09999999
41	10-28636	SCREW, STOP BRACKET TO DISTRIBUTOR ADAPTOR (3/4")
42	12-20533	WASHER, STOP BRACKET FASTENING SCREW
43	10-24228	SCREW, STOP BRACKET ADJUSTING (1 7/8")
44	11-20890	NUT, STOP BRACKET ADJUSTING SCREWS
45	52023	CAP, NYLON-STOP BRACKET ADJUSTING SCREWS
46	12-27939	WASHER, DISTRIBUTOR HOUSING
47	14-27960	TAB WASHER, ADAPTOR CAP FASTENING
48	13-27959	WASHER, WAVE-DISTRIBUTOR BALL BEARING TENSION
49	54567	CAP, DISTRIBUTOR HOUSING
50	23-47250	SPACER, DRIVE PULLEY
51	29906A1	DRIVEN PULLEY ASSEMBLY
52	17-29908	PIN, ROLL-FLANGE LOCATING
53	29907	FLANGE, DRIVEN PULLEY
54	28-29910	KEY, DISTRIBUTOR DRIVER
55	27-58534	SCREW, PULLEY CLAMPING SCREW
56	20140	BELT, TIMING

▶DISTRIBUTOR HOUSING AND ROTOR (46 parts)

Ref	OEM Part #	Part Name
--	8M0084600	CONNECTOR, SPARK PLUG LEAD
1	30-20066	BALL BEARING, DISTRIBUTOR HOUSING (UPPER)
2	11-54209	NUT, ROTOR SHAFT TO DISTRIBUTOR HOUSING
3	23-53539	SLEEVE, ROTOR SHAFT
4	393-3736A79	HOUSING ASSEMBLY, DISTRIBUTOR Comment: SERIAL 00000000-02991033
5	337-4479	HOUSING, DISTRIBUTOR Comment: SERIAL 03051041-03052380
6	337-4406A2	TRIGGER ASSEMBLY, DISTRIBUTOR Comment: SERIAL 03051041-03052380
7	10-29072	SCREW, TRIGGER COIL TO DISTRIBUTOR HOUSING Comment: SERIAL 03051041-03052380
8	13-69432	LOCKWASHER, TRIGGER COIL SCREW Comment: SERIAL 03051041-03052380
9	337-4481	CAM, DISTRIBUTOR TRIGGER Comment: SERIAL 03051041-03052380
10	53417	GROUND STRAP ASSEMBLY, DISTRIBUTOR TO CRANKCASE
11	10-62568	SCREW, GROUND STRAP ATTACHING (3/8")
12	58807A1	FLAME ARRESTOR ASSEMBLY, DISTRIBUTOR HOUSING Comment: SERIAL 03186263-09999999
13	15-21148A1	SHIM, ROTOR Comment: SERIAL 00000000-02991033
14	15-55853	SHIM, ROTOR Comment: SERIAL 00000000-02991033
15	23-53538	SPACER, ROTOR SHAFT Comment: SERIAL 00000000-02991033
16	393-3236	DISC, ROTOR Comment: SERIAL 00000000-02991033
17	30-26379	BALL BEARING, DISTRIBUTOR HOUSING (LOWER)
18	53-26406	RING, RETAINING - BALL BEARING TO DISTRIBUTOR HOUSING
19	393-4371	ROTOR, DISTRIBUTOR Comment: SERIAL 02783253-09999999
20	54-60768	CLAMP, DISTRIBUTOR CAP TO DISTRIBUTOR HOUSING Comment: SERIAL 03307347-09999999
21	10-54281	SCREW, DISTRIBUTOR CAP CLAMP (1")
22	11-26768	NUT, DISTRIBUTOR CAP CLAMP SCREW
23	32-8M0108355	HOSE, VENT- DISTRIBUTOR TO ELBOW (10 1/2") Comment: SERIAL 00000000-03148653
24	22-31521	ELBOW, VENT HOSE TO BOTTOM COWL Comment: SERIAL 00000000-03148653
25	54-22875	CLAMP, VENT HOSE TO FRONT SUPPORT BRACKET Comment: SERIAL 00000000-02670574
26	10-48591	SCREW, VENT HOSE CLAMP (1/2") Comment: SERIAL 00000000-02670574
27	8M0084613	"D" WASHER, CLAMP FASTENING SCREW Comment: SERIAL 00000000-02670574
28	11-24656	NUT, CLAMP FASTENING SCREW Comment: SERIAL 00000000-02670574
29	84-821945A5	CABLE ASSEMBLY, CAP TO COIL Comment: SERIAL 03051041-03052380
30	25-26547	GROMMET, CABLE
31	332-2854T01	BOOT, CABLE TO COIL
32	85-94589	SLEEVE, CABLE
33	32-46398	SLEEVE, (LEADS 1, 2, 3, 4,) - (3/4")
34	27-55896	GASKET, DISTRIBUTOR CAP TO DISTRIBUTOR HOUSING Comment: SERIAL 02783253-09999999
35	393-3726A10	DISTRIBUTOR CAP ASSEMBLY Comment: SERIAL 03186263-09999999
36	393-1293A1	BRUSH AND SPRING ASSEMBLY Comment: SERIAL 03186263-09999999
37	58807A1	FLAME ARRESTOR ASSEMBLY, DISTRIBUTOR HOUSING Comment: SERIAL 03186263-09999999
38	63319	RETAINER, LEADS
39	10-46378	SCREW, LEAD RETAINER (1")
40	11-20013	NUT, RETAINER SCREW
41	33-896329827	SPARK PLUG (AC V-40FFM) Comment: SERIAL 02783253-09999999
42	84-813715A1	SPARK PLUG LEAD ASSEMBLY #1, #2, #3 AND #4 Comment: ORDER A-36549A1 KIT FOR REPLACEMENT OF LEAD WIRE MARKERS
43	85-63709A1	PROTECTOR, SPARK PLUG LEAD
44	32-46768	SLEEVE, SPARK PLUG LEAD (LEADS 1, 2, 3, 4)
45	85-94589	SLEEVE, SPARK PLUG LEAD TO DISTRIBUTOR

▶DRIVE SHAFT HOUSING ASSEMBLY (52 parts)

Ref	OEM Part #	Part Name
-	25-92012	GROMMET, TRIM COVER SCREW Comment: SERIAL 02881082-09999999
1	1551-3918A3	DRIVE SHAFT HOUSING ASSEMBLY (LONG SHAFT) Comment: SERIAL 02783253-09999999
2	16-56295	STUD, DRIVE SHAFT HOUSING TO GEAR HOUSING (2 11/16")
3	19-824928001	PLUG, PLASTIC-TRIM TAB SCREW HOLE Comment: SERIAL 02783253-09999999
4	10-48409	SCREW, RETAINING STRIP TO DRIVE SHAFT HOUSING (5/8")
5	10-48408	SCREW, RETAINING STRIP TO DRIVE SHAFT HOUSING (1/2")
6	37417	COVER, TRIM-DRIVE SHAFT HOUSING
7	10-57807	SCREW, TRIM COVER TO BOTTOM COWL (3/4") Comment: SERIAL 02881082-09999999
8	37919	SEAL, TRIM COVER TO DRIVE SHAFT HOUSING
9	37665	STRIP, RETAINING-TRIM COVER SEAL (SIDE)
10	38052	STRIP, RETAINING-TRIM COVER SEAL (REAR)
11	32-37438	TUBE, WATER INLET (LONG SHAFT)
12	38470	TUBE, EXHAUST (LONG SHAFT)
13	10-38601	SCREW, EXHAUST TUBE TO EXHAUST EXTENSION PLATE (5/8")
14	11-35888	NUT, EXHAUST TUBE SCREW
15	11-82670911	NUT, POWERHEAD STUDS (5/16-24)
16	11-8M0204726	NUT, POWERHEAD STUDS (3/8-24)
17	12-20086	WASHER, POWERHEAD STUDS
18	27-48801	GASKET, EXHAUST EXTENSION PLATE TO DRIVE SHAFT HOUSING
19	52887	GUIDE, PUSH ROD-REVERSE LOCKING
20	47558	ROD, PUSH-REVERSE LOCK (LONG SHAFT)
21	11-69254	NUT, JAM-PUSH ROD
22	47559	YOKE, PUSH ROD
23	24-78203A2	PIN, PUSH ROD TO REVERSE LOCK
24	18-25191	COTTER PIN, PUSH ROD PIN
25	37396	MOUNT -UPPER
26	26218	COVER, UPPER MOUNT-OUTSIDE HALF
27	57931	COVER, UPPER MOUNT-INSIDE HALF Comment: SERIAL 02783253-09999999
28	24929	PACKING, "U" CUP
29	10-20012	SCREW, UPPER MOUNT COVER (1 5/8")
30	10-28775	SCREW, UPPER MOUNT COVER (2 1/8")
31	12-8M0204649	WASHER, UPPER MOUNT COVER SCREW
32	11-35888	NUT, UPPER MOUNT COVER SCREW
33	12-30515	WASHER, UPPER MOUNT BOLT
34	12-47894	WASHER, RUBBER-UPPER MOUNT BOLT
35	12-30514	WASHER, UPPER MOUNT BOLT
36	11-8M0204653	NUT, UPPER MOUNT BOLT
37	75298	MOUNT, RUBBER-LOWER
38	10-75284	SCREW, UPPER MOUNT (5 1/2")
39	12-49339	WASHER, MOUNT SCREW
40	11-25096	NUT, MOUNT SCREW
41	25067	BUMPER, RUBBER-MOUNTING SCREW
42	11-8M0204653	NUT, GEAR HOUSING AND DRIVE SHAFT HOUSING STUDS
43	12-45176	WASHER, GEAR HOUSING TO DRIVE SHAFT HOUSING STUDS
44	11-29489	NUT, GEAR HOUSING AND DRIVE SHAFT HOUSING STUDS
45	12-45176	WASHER, GEAR HOUSING TO DRIVE SHAFT HOUSING STUDS
46	35608	CLAMP, LOWER MOUNT TO DRIVE SHAFT HOUSING
47	24-35522	SPRING, TENSION-LOWER MOUNT CLAMP
48	10-29256	SCREW, LOWER MOUNT CLAMP TO DRIVE SHAFT HOUSING (7/8")
49	35474T	COVER, LOWER MOUNT CLAMP
50	11-35521	NUT, LOWER MOUNT CLAMP COVER
51	10-29722	SCREW, COVER TO LOWER CLAMP MOUNT

▶FLYWHEEL ASSEMBLY AND STATOR (16 parts)

Ref	OEM Part #	Part Name
1	19-45907	PLUG, FLYWHEEL PULLER THREADS
2	11-52901	NUT, FLYWHEEL
3	12-33001	WASHER, FLYWHEEL NUT
4	225-2494A37	FLYWHEEL ASSEMBLY, COMPLETE Comment: SERIAL 02783253-09999999
5	10-32417	SCREW, FLEXIBLE PLATE TO FLYWHEEL
6	10-68997	SCREW, PLATE AND HUB TO FLEXIBLE PLATE
7	17-26618	PIN, DOWEL - PULLEY TO FLYWHEEL
8	29788	FLANGE, FLYWHEEL PULLEY
9	30306	PULLEY, FLYWHEEL
10	29787	HUB, FLYWHEEL PULLEY
11	398-4792	STATOR, ALTERNATOR
12	30050	TERMINAL, STATOR LEAD WIRE
13	10-57021	SCREW, STATOR TO UPPER END CAP (7/8")
14	54-22875	CLIP, STATOR LEAD FASTENING (7/16")
15	10-62568	SCREW, STATOR LEAD FASTENING (3/8")
16	8M0084613	"D" WASHER, CLIP FASTENING SCREW

▶FUEL PUMP AND FUEL LINE ASSEMBLY - DUAL FUEL PUMPS (28 parts)

Ref	OEM Part #	Part Name
1	55156A5	FUEL PUMP ASSEMBLY (UPPER AND LOWER) Comment: SERIAL 02783253-02886331
2	21-30430A3	CHECK VALVE ASSEMBLY Comment: SERIAL 02783253-02886331
3	55278A1	DIAPHRAGM KIT Comment: SERIAL 02783253-02886331
6	23004	RETAINER, CHECK VALVE Comment: SERIAL 02783253-02886331
7	10-43725	SCREW, RETAINER TO HOUSING Comment: SERIAL 02783253-02886331
8	10-69067	SCREW, PUMP MOUNTING (1 3/8") Comment: SERIAL 02783253-02886331
9	10-30273	SCREW, PUMP MOUNTING (1 7/8") Comment: SERIAL 00000000-02670574
10	22-328022	PLUG, PIPE-FUEL PUMP (LOWER) Comment: SERIAL 02783253-02886331
11	32-55827A1	FUEL LINE ASSEMBLY, PUMP TO CARBURETOR (9 1/2")-SERIAL #2783 Comment: SERIAL 02783253-02886331
12	22-30174	ELBOW (90), UPPER CARBURETOR
13	22-30175	SLEEVE, UPPER CARBURETOR ELBOW
14	22-30177	NUT, UPPER CARBURETOR ELBOW
15	32-54578A1	FUEL LINE ASSEMBLY, UPPER TO LOWER CARBURETOR (5 1/2")
16	22-8M0123050	ELBOW (45), UPPER CARBURETOR
17	32-55826A1	FUEL LINE ASSEMBLY, PUMP TO CARBURETOR (9 1/4') Comment: SERIAL 02783253-02886331
18	32-55828A1	FUEL LINE ASSEMBLY, PUMP TO PUMP (13 3/4") Comment: SERIAL 02783253-02886331
19	22-54818	"Y" FITTING, UPPER FUEL PUMP Comment: SERIAL 02664412-09999999
20	22-30468	CONNECTOR, UPPER FUEL PUMP
21	22-30175	SLEEVE, CONNECTOR
22	22-30177	NUT, CONNECTOR
23	32-55829	FUEL LINE, ADAPTOR TO UPPER FULE PUMP (15") Comment: SERIAL 02783253-02886331
24	30186	ADAPTOR, CHECK UNIT (FUEL LINE)
25	30187	STEM, CHECK UNIT ADAPTOR
26	24-30189	SPRING, ADAPTOR STEM
27	25-16524	"O"RING, ADAPTOR STEM
28	30188	CUP WASHER, ADAPTOR
29	10-69029	SCREW, ADAPTOR TO BOTTOM COWL (1 3/4")
30	11-8M0207775	NUT, ADAPTOR FASTENING SCREW

▶FUEL PUMP AND FUEL LINE ASSEMBLY - SINGLE FUEL PUMP (24 parts)

Ref	OEM Part #	Part Name
1	58888A4	FUEL PUMP ASSEMBLY
2	21-8M0084276	CHECK VALVE ASSEMBLY
3	55278A5	DIAPHRAGM KIT
6	23004	RETAINER, CHECK VALVE
7	10-43725	SCREW, RETAINER TO HOUSING
8	10-69067	SCREW, PUMP MOUNTING (1 3/8")
9	32-55827A1	FUEL LINE ASSEMBLY, PUMP TO CARBURETOR (9 1/2")
10	22-59351	ELBOW, UPPER CARBURETOR (90)
11	22-30175	SLEEVE, UPPER CARBURETOR ELBOW
12	22-30177	NUT, UPPER CARBURETOR ELBOW
13	32-59352	FUEL LINE, CARB. TO CARB. (6 5/8") Comment: SERIAL 03051041-09999999
14	22-8M0123050	ELBOW, UPPER CARBURETOR (45) Comment: SERIAL 00000000-02991033
15	22-328022	PLUG, BOTTOM FILTER COVER Comment: SERIAL 00000000-02991033
16	22-30468	CONNECTOR, FUEL PUMP
17	22-30175	SLEEVE, CONNECTOR
18	22-30177	NUT, CONNECTOR
19	32-55829	FUEL LINE, ADAPTOR TO UPPER FUEL PUMP (15")
20	30186	ADAPTOR, CHECK UNIT (FUEL LINE)
21	30187	STEM, CHECK UNIT ADAPTOR
22	24-30189	SPRING, ADAPTOR STEM
23	25-16524	"O"RING, ADAPTOR STEM
24	30188	CUP WASHER, ADAPTOR
25	10-69029	SCREW, ADAPTOR TO BOTTOM COWL (1 3/4")
26	11-8M0207775	NUT, ADAPTOR FASTENING SCREW

▶GEAR HOUSING ASSEMBLY, COMPLETE (53 parts)

Ref	OEM Part #	Part Name
-	1655-7333A25	GEAR HOUSING ASSEMBLY, COMPLETE (LONG SHAFT) Comment: A-1623-3486A22, A-1623-3486A23, A-1623-39124 AND A-1623-3912A5 GEAR HOUSING ASSEMBLIES, COMPLETE, INCLUDE ALL PARTS FROM REFERENCE #1 THRU #78 AS LISTED ON PAGES 31 AND 34 SERIAL 02783253-09999999
1	1623-5244A14	GEAR HOUSING ASSEMBLY Comment: SERIAL 02783253-09999999
2	55662	SCREEN, WATER INLET (EARLY MODELS ONLY)
3	17-21438	PIN, DOWEL
4	16-57921	STUD, GEAR HOUSING TO DRIVE SHAFT HOUSING (4")
5	16-8M0133358	STUD, GEAR HOUSING TO DRIVE SHAFT HOUSING (2 1/16")
6	16-8M0034463	STUD, WATER PUMP BASE AND BODY TO GEAR HOUSING (3 3/8")
7	16-57919	STUD, WATER PUMP BASE AND BODY TO GEAR HOUSING (3 5/16")
8	31-32898T	BEARING, ROLLER-DRIVE SHAFT
9	45-47434	DRIVE SHAFT (LONG SHAFT)
10	43-53981	GEAR, PINION-DRIVE SHAFT
11	11-35921	NUT, PINION GEAR TO DRIVE SHAFT
12	15-30278A1	SHIM, WATER PUMP BASE TO GEAR HOUSING (.002-3-5-10)
13	30-63326T	BEARING, BALL-DRIVE SHAFT
14	53-30726	RING, RETAINING-BALL BEARING
15	27-32438	GASKET, WATER PUMP BASE TO GEAR HOUSING
16	25-8M0204651	"O"RING, WATER PUMP BASE
17	46-48747A1	WATER PUMP BASE ASSEMBLY
18	26-94038	OIL SEAL, WATER PUMP BASE
19	26-16977	OIL SEAL, WATER PUMP BASE
20	17-35973	DOWEL PIN, WATER PUMP BASE TO WATER PUMP BODY
21	27-8M0090319	GASKET, LOWER-WATER PUMP BASE TO FACE PLATE
22	8M0204677	PLATE, FACE-WATER PUMP BASE TO WATER PUMP BODY
23	27-858524	GASKET, UPPER-FACE PLATE TO WATER PUMP BODY
24	46-96148T1	WATER PUMP BODY ASSEMBLY
25	48752T	INSERT, WATER PUMP BODY
26	26-16977	OIL SEAL, WATER PUMP BODY
27	26-38970	SEAL, RUBBER-WATER INLET TUBE
28	47-89984T4	IMPELLER, WATER PUMP
29	28-8M0214992	KEY, IMPELLER DRIVE Comment: SERIAL 02783253-09999999
30	10-30720	SCREW, WATER PUMP BODY TO GEAR HOUSING (2 1/4")
31	13-26992	LOCKWASHER, WATER PUMP BODY SCREW
32	12-8M0204649	WASHER, WATER PUMP BODY FASTENING SCREW AND STUD
33	11-826709109	NUT, WATER PUMP BODY FASTENING STUD
34	12-36001	WASHER, WATER PUMP BODY FASTENING STUD
35	11-826709111	NUT, WATER PUMP BODY FASTENING STUD
36	25-8M0214918	RING, RUBBER-CENTRIRFUGAL SLINGER (DRIVE SHAFT)
37	23-29804T	SLEEVE, GUIDE-WATER INLET TUBE
38	25-8M0214919	"O"RING, UPPER-DRIVE SHAFT
39	37641001	SEAL, EXHAUST TUBE
40	38051	PLATE, SUPPORT-EXHAUST TUBE SEAL
41	76062A1	SHAFT ASSEMBLY, SHIFT-LOWER Comment: SERIAL 02783253-09999999
42	53-29641	"E"RING, SHIFT SHAFT Comment: SERIAL 02783253-09999999
43	25-25439	"O"RING, SHIFT SHAFT BUSHING
44	23-77631A2	BUSHING ASSEMBLY, SHIFT SHAFT Comment: SERIAL 02783253-09999999
45	26-892361	OIL SEAL, SHIFT SHAFT BUSHING (UPPER)
46	12-31266	WASHER, RUBBER-SHIFT SHAFT BUSHING
47	78036	SPACER, LOWER-REVERSE LOCK
48	43308T1	CAM, REVERSE LOCKING
49	10-79953Q04	SCREW, GREASE FILLER AND VENT HOLE
50	12-191833	WASHER, GREASE FILLER AND VENT HOLE SCREW
51	19-48750	PLUG, GEAR HOUSING FLUSHING HOLE
52	12-8M0204663	WASHER, GEAR HOUSING FLUSHING HOLE PLUG

▶GEAR HOUSING ASSEMBLY, COMPLETE (CONT) (35 parts)

Ref	OEM Part #	Part Name
-	1655-7333A25	GEAR HOUSING ASSEMBLY, COMPLETE (LONG SHAFT) Comment: A-1623-3486A22, A-1623-3486A23, A-1623-39124 AND A-1623-3912A5 GEAR HOUSING ASSEMBLIES, COMPLETE, INCLUDE ALL PARTS FROM REFERENCE #1 THRU #78 AS LISTED ON PAGES 31 AND 34 SERIAL 02783253-09999999
1	1623-5244A14	GEAR HOUSING ASSEMBLY -SEE PAGE 31 FOR BREAKDOWN Comment: SERIAL 02783253-09999999
53	760394	CAM, SHIFT
54	30625	FOLLOWER, CAM
55	30624	SLIDE, CROSS PIN
56	24-30622	SPRING, COMPRESSION-CAM FOLLOWER
57	15-30923A1	SHIM, BEARING OUTER RACE TO GEAR HOUSING (.002-3-5-10)
58	31-30894A1	TAPERED ROLLER BEARING ASSEMBLY
59	31-30895T	BEARING, ROLLER-FORWARD GEAR
60	43-53982A2	FORWARD GEAR ASSEMBLY
61	52-822539T	RATCHET, SLIDING CLUTCH
62	17-8M0100263	PIN, CROSS-RATCHET TO PROPELLER SHAFT
63	24-30893	SPRING, RETAINING-CROSS PIN
64	44-93003	SHAFT, PROPELLER
65	43-53983	REVERSE GEAR ASSEMBLY
66	15-29955A1	SHIM, THRUST WASHER TO GEAR HOUSING (.002-3-5-10)
67	12-71143A1	WASHER, THRUST-BEARING CARRIER TO GEAR HOUSING
68	30-31265	BEARING, BALL-REVERSE GEAR
69	25-29976	"O"RING, BEARING CARRIER
70	52132T1	BEARING CARRIER ASSEMBLY
71	31-30956T	BEARING, ROLLER-BEARING CARRIER
72	26-8M0204670	OIL SEAL, BEARING CARRIER
73	28-30281	KEY, LOCATING-BEARING CARRIER
74	14-52700	TAB WASHER, GEAR HOUSING COVER
75	52699	COVER, GEAR HOUSING
76	97-31640Q4	TRIM TAB ASSEMBLY, GEAR HOUSING
77	10-66024	SCREW, TRIM TAB TO GEAR HOUSING (1 3/4") Comment: SERIAL 02783253-09999999
78	12-45176	WASHER, GEAR HOUSING TO DRIVE SHAFT HOUSING STUDS
79	11-8M0204653	NUT, GEAR HOUSING TO DRIVE SHAFT HOUSING STUDS
80	32-46471	SCREW, GEAR HOUSING TO DRIVE SHAFT HOUSING (1")
81	65091Q01	THRUST HUB AND WASHER ASSEMBLY
82	12-29590	WASHER, CUPPED-THRUST HUB
83	12-31211Q03	WASHER, SPLINED-PROPELLER NUT
84	14-816629Q	TAB WASHER, PROPELLER NUT
85	11-52707Q1	NUT, PROPELLER

▶MISCELLANEOUS PARTS/ACCESSORIES (1 parts)

Ref	OEM Part #	Part Name
-	53168A1	HEAVY DUTY WATER PUMP KIT

▶STARTER MOTOR AND WIRING HARNESS (56 parts)

Ref	OEM Part #	Part Name
1	332-2986A27	SWITCH BOX ASSEMBLY, COMPLETE (CASTING #332-2986)
2	12-45075	WASHER, SWITCH BOX TERMINAL
3	11-45076	NUT, SWITCH BOX TERMINAL
4	10-69028	SCREW, SWITCH BOX TO FRONT SUPPORT BRACKET (3/4")-SERIAL #27 Comment: SERIAL 02783253-09999999
5	11-8M0207775	NUT, SWITCH BOX TO FRONT SUPPORT BRACKET SCREW
6	78614A1	RECTIFIER ASSEMBLY, COMPLETE
7	12-45075	WASHER, RECTIFIER TERMINAL
8	11-45076	NUT, RECTIFIER TERMINAL
9	10-76621	SCREW, RECTIFIER TO BOTTOM COWL (7/8")
10	13-22773	LOCKWASHER, RECTIFIER MOUNTING SCREW
11	59757	BRACKET, RETAINER-HIGH TENSION LEAD
12	10-22956	SCREW, RETAINER BRACKET TO FRONT SUPPORT BRACKET (7/8") Comment: SERIAL 02783253-09999999
13	12-8M0204649	WASHER, RETAINER BRACKET FASTENING SCREW
14	11-8M0207775	NUT, RETAINER BRACKET SCREW
15	50-58788A3	STARTER MOTOR ASSEMBLY (SERIAL #2986444 AND UP) Comment: FOR BREAKDOWN, SEE ACCESSORY SECTION "E"
16	13-26992	LOCKWASHER, STARTER MOTOR TERMINAL
17	11-20890	NUT, STARTER MOTOR TERMINAL
18	10-31984	SCREW, STARTER MOTOR TO CRANKCASE FLANGE (1 3/8")
19	13-8M0204647	LOCKWASHER, STARTER MOTOR SCREW
20	52691	BRACKET, SUPPORT-STARTER MOTOR
21	13-24669	LOCKWASHER, THRU BOLT-BRACKET TO STARTER MOTOR
22	11-20013	NUT, THRU BOLT-BRACKET TO STARTER MOTOR
23	10-35386	SCREW, STARTER MOTOR BRACKET TO CRANKCASE (1")
24	13-8M0204647	LOCKWASHER, STARTER MOTOR BRACKET FASTENING SCREW
25	84-93389A12	WIRE, STARTER MOTOR TO STARTER SOLENOID AND TOP MOUNT
26	10-69035	SCREW, GROUND WIRE TO STARTER MOTOR (5/8")
27	25661T1	STARTER SOLENOID
28	10-69028	SCREW, STARTER SOLENOID TO COIL BRACKET (3/4")
29	13-26992	LOCKWASHER, STARTER SOLENOID MOUNTING SCREW
30	13-8M0204647	LOCKWASHER, SOLENOID TERMINAL (5/16")
31	11-22053	NUT, SOLENOID TERMINAL-INSIDE (5/16")
32	10,13-26996	LOCKWASHER, SOLENOID TERMINAL
33	10,11-68219	NUT, SOLENOID TERMINAL
34	52902	CABLE, STARTER SOLENOID TO STARTER MOTOR
35	52771A2	WIRING HARNESS (INTERNAL)
36	54-76368	CLAMP, WIRING HARNESS TO BOTTOM COWL
37	10-45862	SCREW, WIRING HARNESS CLAMP TO BOTTOM COWL (7/8")
38	13-26996	LOCKWASHER, WIRING HARNESS CLAMP SCREW
39	12-847883	WASHER, WIRING HARNESS CLAMP SCREW
40	24-28975	SPRING, GARTER-INTERNAL WIRING HARNESS
41	54-26550	CLAMP, WIRING HARNESS TO COIL BRACKET
42	10-69079	SCREW, WIRING HARNESS CLAMP TO COIL BRACKET
43	8M0084613	"D" WASHER, WIRING HARNESS CLAMP
44	25-26547	GROMMET, RECTIFIER TO SWITCH BOX WIRE
45	10-98256	SCREW, WIRING HARNESS LEAD TO BOTTOM COWL (1/2")
46	13-24669	LOCKWASHER, WIRING HARNESS LEAD SCREW
47	332-4895A5	IGNITION COIL ASSEMBLY, COMPLETE Comment: SERIAL 03307347-09999999
48	10-46368	SCREW, IGNITION COIL CLAMPING (2 1/4")
49	11-8267086	NUT, IGNITION COIL CLAMPING SCREW
50	10-24624	SCREW, IGNITION COIL TO BOTTOM COWL ( 3/4")
51	13-26992	LOCKWASHER, IGNITION COIL SCREW
52	10-88488	SCREW, IGNITION COIL TO BOTTOM COWL (3 1/4")
53	23-52933	SPACER, COIL BRACKET TO BOTTOM COWL
54	11-8M0207775	NUT, IGNITION COIL SCREW
55	10-45218	SCREW, IGNITION COIL WIRE TO SWITCH BOX (3/8")
56	269011	BUMPER, IGNITION COIL

▶TOP COWL AND SUPPORT BRACKETS (41 parts)

Ref	OEM Part #	Part Name
1	2114-3806	COWL, TOP Comment: SERIAL 02783253-09999999
2	52733A9	RETAINER ASSEMBLY, TOP COWL Comment: SERIAL 03186263-09999999
3	35496	PAD, BUMPER - TOP COWL RETAINER Comment: SERIAL 03186263-09999999
4	37-61018A1	EMBLEM, TOP COWL RETAINER Comment: SERIAL 02783253-02886331
5	10-74824	SCREW, RETAINER TO TOP COWL (1 1/4")
6	13-39107	LOCKWASHER, RETAINER FASTENING SCREW
7	76370	SHIELD, TOP COWL - REAR
8	10-37370	SCREW, SHEILD TO TOP COWL (5/8")
9	13-37371	LOCKWASHER, SHIELD SCREW
10	52739	HINGE, COWL LATCH - TOP COWL
11	94918F1	LEVER, COWL LATCH HINGE
12	17-58998	PIN, COWL LATCH LEVER TO HINGE
13	24-53019	SPRING, COWL LATCH HINGE Comment: SERIAL 00000000-03148653
14	55455	HOOK, TOP COWL LATCH - REAR Comment: SERIAL 02783253-09999999
15	13-26992	LOCKWASHER, REAR HOOK MOUNTING SCREW
16	10-22956	SCREW, REAR HOOK TO TOP COWL (7/8")
17	47341A11	ROPE, STARTER (FOR MANUAL STARTING ONLY)
18	79897A4	FRAME, TOP COWL SUPPORT
19	37-60204	DECAL, TIMING - TOP COWL FRAME
20	90435	MOUNT, RUBBER - TOP COWL FRAME
21	11-8267089	NUT, RUBBER MOUNT TO TOP COWL FRAME
22	52468	BRACKET, TOP COWL SUPPORT - REAR
23	31014	MOUNT, RUBBER - REAR SUPPORT BRACKET
24	13-26992	LOCKWASHER, RUBBER MOUNT TO REAR SUPPORT BRACKET
25	11-20088	NUT, RUBBER MOUNT TO REAR SUPPORT BRACKET
26	10-26065	SCREW, REAR SUPPORT BRACKET TO TOP COWL FRAME (1")
27	11-29250	NUT, RAR SUPPORT BRACKET SCREW
28	10-35386	SCREW, RAR SUPPORT BRACKET TO BOTTOM COWL (1')
29	13-8M0204647	LOCKWASHER, REAR SUPPORT BRACKET SCREW
30	66521A2	BRACKET, SUPPORT - FRONT Comment: SERIAL 03051041-03052380
31	10-78841	SCREW, FRONT SUPPORT BRACKET TO BOTTOM COWL (1 1/2")
32	11-29250	NUT, FRONT SUPPORT BRACKET SCREW
33	10-73657	SCREW, FRONT BRACKET TO TOP COWL FRAME (1 1/2")
34	13-8M0204647	LOCKWASHER, FRONT SUPPORT BRACKET SCREW
35	37640	MOUNT, RUBBER - FRONT SUPPORT BRACKET
36	13-8M0204647	LOCKWASHER, RUBBER MOUNT TO FRONT SUPPORT BRACKET
37	11-22053	NUT, RUBBER MOUNT TO FRONT SUPPORT BRACKET
38	58124A9	SWITCH, MERCURY Comment: SERIAL 03051041-03052380
39	10-25764	SCREW, MERCURY SWITCH TO FRONT SUPPORT BRACKET (1/2")
40	17-30496	PIN, ROLL - MERCURY SWITCH (EARLY MODELS ONLY)
41	10-62568	SCREW, MERCURY SWITCH LEAD (3/8")

100-Hour / Annual Service Checklist

Regular maintenance keeps your Mercury 800 (4 CYL.), 80 (4 CYL.) 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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Mercury 800 (4 CYL.), 80 (4 CYL.) (2559001 THRU 3493912) Parts & Diagrams

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