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Mercury 400 (2 CYL.) (2874704 THRU 3336257) Parts & Diagrams
🔎 Mercury 400 (2 CYL.) Reference Library — Exploded parts diagrams (17 diagrams), specifications, common issues, and maintenance checklist.
The Mercury 400 (2 CYL.) is a 4-Stroke, V10 64-degree, Naturally Aspirated outboard motor. Commonly used on jon boats, pontoons, and mid-size utility craft.
Quick Reference Specifications
| Specification | Value |
|---|---|
| Engine Type | 4-Stroke, V10 64-degree, Naturally Aspirated |
| Horsepower | 40 HP |
| Displacement | 5700 cc (5.7L / 349 CID) |
| Bore x Stroke | 92 mm x 86 mm (3.6 in. x 3.4 in.) |
| Spark Plug (Type & Gap) | NGK ILFR6G-E |
| Engine Oil Capacity | 7.0 L (7.4 US qt) with filter |
| Recommended Engine Oil | Mercury FourStroke 25W-40 |
| Gear Case Oil Capacity | 970 mL (32.8 oz) |
| Idle Speed (in gear) | 650–700 RPM (in gear) |
| Full Throttle RPM Range | 5800-6400 |
| 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 400 (2 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 400 (2 CYL.).
▶BOTTOM COWL AND EXHAUST PLATE ASSEMBLY (32 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 2139-3882 | BOTTOM COWL |
| 2 | 48472 | COVER, PLUG - BOTTOM COWL HARNESS HOLE (MANUAL) |
| 3 | 10-20189 | SCREW, PLUG COVER TO BOTTOM COWL (3/4") |
| 4 | 32-8M0108355 | HOSE, TELL TALE - COWL TO EXHAUST COVER (12") |
| 5 | 22-996642 | ELBOW, TELL TALE HOSE TO EXHAUST COVER |
| 6 | 52889 | NOZZLE, TELL TALE HOSE TO BOTTOM COWL |
| 7 | 10-35519 | SCREW, NOZZLE TO BOTTOM COWL |
| 8 | 27-628601 | GASKET, POWERHEAD TO EXHAUST EXTENSION PLATE |
| 9 | 39622 | SEAL, RUBBER - EXHAUST PLATE TO BOTTOM COWL |
| 10 | 42818A1 | PLATE ASSEMBLY, EXHAUST EXTENSION |
| 11 | 12-38453 | WASHER, NYLON - WATER OUTLET TUBE |
| 12 | 26-38452 | SEAL, RUBBER - WATER OUTLET TUBE |
| 13 | 38500 | RETAINER, WATER OUTLET TUBE SEAL |
| 14 | 10-69069 | SCREW, RETAINER TO EXHAUST PLATE (3/4") |
| 15 | 27-385011 | GASKET, EXHAUST PLATE TO DRIVE SHAFT HOUSING |
| 16 | 10-56500 | SCREW, EXHAUST PLATE TO BOTTOM COWL (1 1/4") |
| 17 | 11-8M0207775 | NUT, EXHAUST PLATE SCREW |
| 18 | 37637 | BOOT, FUEL CONNECTOR - BOTTOM COWL |
| 19 | 55170 | COVER, VENT - BOTTOM COWL |
| 20 | 10-52867 | SCREW. VENT COVER TO BOTTOM COWL |
| 21 | 39616 | BOOT, CONTROL CABLE - BOTTOM COWL |
| 22 | 39630 | CUSHION, RUBBER - BOTTOM COWL |
| 23 | 39555A2 | COVER PLATE ASSEMBLY |
| 24 | 57596 | PAD, SOUND - COVER PLATE |
| 25 | 10-8M0113176 | SCREW, COVER PLATE TO BOTTOM COWL |
| 26 | 59065A6 | STOP SWITCH ASSEMBLY MANUAL ONLY |
| 27 | 30859 | INSULATOR, SLEEVE - INNER SWITCH TERMINALS(MANUAL) |
| 28 | 24-30858A1 | SPRING AND CONTACT ASSEMBLY (MANUAL) |
| 29 | 38950A1 | COVER ASSEMBLY, STOP SWITCH (MANUAL) |
| 30 | 12-38949 | WASHER, SEALING - STOP SWITCH (MANUAL) |
| 31 | 13-21972 | LOCKWASHER, STOP SWITCH CONNECTOR(MANUAL) |
| 32 | 11-21971 | NUT, STOP SWITCH TO BOTTOM COWL (MANUAL) |
▶CARBURETOR ASSEMBLY (23 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| -- | 1395-51091 | REPAIR PARTS KIT (1 PER CARBURETOR) Comment: SERIAL 03043031-09999999 |
| 1 | 1352-4511A1 | CARBURETOR ASSEMBLY, COMPLETE (WMK-1) Comment: SERIAL 03043031-09999999 |
| 2 | 1395-8673 | FLOAT ASSEMBLY |
| 6 | 1395-83181 | INLET NEEDLE, SEAT AND GASKET Comment: SERIAL 03043031-09999999 |
| 9 | 1399-4559 | COVER, FLOAT BOWL Comment: SERIAL 03043031-09999999 |
| 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 | 1399-2371 | COVER, STRAINER |
| 18 | 10-25822 | SCREW, STRAINER COVER FASTENING |
| 19 | 1395-6027 | SCREW, THROTTLE STOP LEVER |
| 20 | 74371 | CLUSTER, THROTTLE STOP |
| 21 | 1395-7942 | SHAFT, THROTTLE |
| 23 | 1395-4540 | SCREW, BODY (IDLE TUBE) Comment: SERIAL 03043031-09999999 |
| 26 | 1395-9017 | SHUTTER, THROTTLE |
| 28 | 1399-3515 | SCREW, IDLE ADJUSTMENT |
| 29 | 1395-4541 | SCREW, PLUG - MAIN FUEL JET CHANNEL Comment: SERIAL 03043031-09999999 |
| 31 | 1399-3794 | JET, MAIN FUEL (.074) |
| 33 | 1395-4542 | SCREW, PLUG - MAIN NOZZLE Comment: SERIAL 03043031-09999999 |
| 36 | 1395-4543 | SCREW, BODY CHANNEL Comment: SERIAL 03043031-09999999 |
| 37 | 27-481641 | GASKET, CARBURETOR FLANGE |
| 38 | 11-29250 | NUT, CARBURETOR MOUNTING STUD |
▶CARBURETOR CHOKE LINKAGE (15 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 47969 | KNOB AND SHAFT, CHOKE |
| 2 | 12-30314 | WASHER, CHOKE SHAFT |
| 3 | 24-47968 | SPRING, COMPRESSION - CHOKE SHAFT |
| 4 | 55180 | LEVER, CHOKE |
| 5 | 1352-4511A1 | CARBURETOR ASSEMBLY-SEE PAGE 7 FOR BREAKDOWN Comment: SERIAL 03043031-09999999 |
| 6 | 16-69016 | STUD, CHOKE SHUTTER PIVOT (CARBURETOR) |
| 7 | 55179 | SHUTTER, CHOKE - CARBURETOR |
| 8 | 24-55163 | SPRING, TENSION - CHOKE SHUTTER |
| 9 | 12-47960 | WASHER, CHOKE SHUTTER CARBURETOR STUD |
| 10 | 11-20110 | NUT, CHOKE SHUTTER TO CARBURETOR STUD |
| 11 | 35-57819 | SCREEN, CARBURETOR |
| 12 | 10-58185 | SCREW, SCREEN TO CARBURETOR (1") |
| 13 | 24-57818 | SPRING, TENSION - SCREEN SCREW |
| 14 | 12-30164 | WASHER, SCREEN SCREW |
| 15 | 11-20110 | NUT, SCREEN SCREW |
▶CLAMP AND SWIVEL BRACKET ASSEMBLY (46 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 1427-3263A1 | CLAMP BRACKET ASSEMBLY |
| 2 | 22477A4 | THUMB SCREW ASSEMBLY |
| 3 | 12-26227 | WASHER, THUMB SCREW |
| 4 | 17-8M0026068 | TILT LOCK PIN ASSEMBLY |
| 5 | 23-59623 | SPACER, CLAMP BRACKET STUD |
| 6 | 16-59625 | STUD, CLAMP BRACKET |
| 7 | 11-28770 | NUT, CLAMP BRACKET STUD |
| 8 | 8M0041936 | TUBE, TILT - CLAMP BRACKET TO SWIVEL BRACKET |
| 9 | 12-52864 | WASHER, CLAMP BRACKET TO SWIVEL BRACKET |
| 10 | 11-858869 | NUT, TILT TUBE |
| 11 | 74316A1 | STEERING ARM AND SWIVEL PIN ASSEMBLY (LONG SHAFT) |
| 12 | 30711 | BUMPER, STEERING ARM |
| 13 | 10-33986 | SCREW, UPPER MOUNT TO STEERING ARM |
| 14 | 62297 | BUMPER, STEERING ARM |
| 15 | 76535T | BRACKET, REMOTE STEERING |
| 16 | 16-39781 | STUD, REMOTE STEERING BRACKET TO STEERING ARM |
| 17 | 11-8M0204726 | NUT, REMOTE STEERING BRACKET STUD |
| 18 | 10-31830 | SCREW, RIDE-GUIDE KIT TO STEERING ARM (1 3/4") |
| 19 | 11-8M0204726 | NUT, RIDE-GUIDE KIT SCREW |
| 20 | 12-52865 | WASHER, SWIVEL PIN |
| 21 | 38-56267 | SERIAL PLATE |
| 22 | 10-25612 | SCREW, DRIVE - SERIAL PLATE TO SWIVEL BRACKET |
| 23 | 10-26483 | BOLT, CLAMP BRACKET TO BOAT TRANSOM |
| 24 | 12-67981 | WASHER, CLAMP BRACKET BOLT |
| 25 | 11-8M0204646 | NUT, CLAMP BRACKET BOLT |
| 26 | 53078 | CAP, PLASTIC - TILT TUBE |
| 27 | 56349 | SHAFT, REVERSE LOCK TO SWIVEL BRACKET |
| 28 | 17-25598 | ROLL PIN, REVERSE LOCK SPRING ATTACHING |
| 29 | 87430 | REVERSE LOCK ASSEMBLY Comment: SERIAL 03043031-09999999 |
| 30 | 24-29821 | SPRING, REVERSE LOCK TENSION |
| 31 | 18-45882 | COTTER PIN, REVERSE LOCK TO SHAFT |
| 32 | 47912A2 | LEVER ASSEMBLY, TILT STOP - STARBOARD SIDE |
| 33 | 1480-7655A1 | SWIVEL BRACKET ASSEMBLY (LONG SHAFT) |
| 34 | 26-32911 | OIL SEAL, SWIVEL BRACKET |
| 35 | 22-69059 | FITTING, GREASE - SWIVEL BRACKET |
| 36 | 19-77633Q | LUBRICAP, SWIVEL BRACKET GREASE FITTING |
| 37 | 12-26837 | WASHER, SWIVEL PIN TO BOTTOM YOKE (.065) |
| 38 | 77416T1 | YOKE, BOTTOM |
| 39 | 11-71956 | NUT, RETAINING - SWIVEL PIN |
| 40 | 47913A2 | LEVER ASSEMBLY, TILT LOCK - PORT SIDE |
| 41 | 10-69087 | SCREW, TILT LOCK AND STOP LEVER TO SWIVEL BRACKET |
| 42 | 11-29250 | NUT, TILT LOCK AND STOP LEVER SCREW |
| 43 | 23-47911 | BUSHING, TILT LOCK AND STOP LEVER |
| 44 | 13-34632 | WASHER, WAVE - TILT LOCK AND STOP LEVER |
| 45 | 12-56720 | WASHER, TILT LOCK AND STOP LEVER |
| 46 | 11-29250 | NUT, TILT LOCK AND STOP LEVER TO CLAMP BRACKET |
▶COWLING AND FRONT COVER (16 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| -- | 92-86166Q1 | GLUE, ADHESIVE - BLANKET FASTENING |
| 1 | 2135-5683A3 | COWL FRONT COVER ASSEMBLY |
| 2 | 63324 | BLANKET, SOUND ABSORBING - COWL FRONT COVER |
| 3 | 63323 | SPACER, SOUND ABSORBING - COWL FRONT COVER |
| 4 | 60867A1 | BASE, COWL FRONT COVER LATCH |
| 5 | 10-22523 | SCREW, LATCH BASE TO COWL FRONT COVER (3/4") |
| 6 | 13-26996 | LOCKWASHER, LATCH BASE SCREW |
| 7 | 12-26014 | WASHER, LATCH BASE SCREW |
| 8 | 17-39599 | PIN, PIVOT - COWL FRONT COVER LATCH HOOK |
| 9 | 60866 | HOOK, COWL FRONT COVER LATCH |
| 10 | 24-39598 | SPRING, TORSION - COWL FRONT COVER LATCH HOOK |
| 11 | 2137-3878A6 | WRAP AROUND COWL ASSEMBLY |
| 12 | 46785A1 | COWL LATCH ASSEMBLY |
| 13 | 30413 | HOOK, COWL LATCH FASTENING |
| 14 | 57593 | BLANKET, SOUND ABSORBING - WRAP AROUND COWL |
| 15 | 57800 | SLEEVE, SOUND ABSORBING BLANKET |
▶CRANKSHAFT, PISTON AND CONNECTING ROD ASSEMBLY (19 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 39-78811A12 | RING, PISTON (.015 OVERSIZE) |
| 1 | 444-3875A2 | CRANKSHAFT ASSEMBLY |
| 2 | 30-62567T | BALL BEARING, CRANKSHAFT (UPPER) |
| 3 | 540-7238A2 | MAIN BEARING ASSEMBLY, VALVE TYPE |
| 4 | 17-20032 | DOWEL PIN, MAIN BEARING |
| 5 | 10-45775 | SCREW, MAIN BEARING CLAMPING |
| 6 | 11-45774 | NUT, MAIN BEARING CLAMPING SCREW |
| 7 | 34-56007A1 | REED SET, MAIN BEARING (MATCHED) |
| 8 | 34-56008 | REED STOP, MAIN BEARING REED VALVES |
| 9 | 10-20055 | SCREW, REED STOP MOUNTING |
| 10 | 624-8101A3 | CONNECTING ROD ASSEMBLY |
| 11 | 10-54803 | SCREW, CONNECTING ROD |
| 12 | 11-49091 | NUT, CONNECTING ROD SCREW |
| 13 | 31-62596A1 | BEARING ASSEMBLY, CRANKPIN |
| 14 | 29-8M0214934 | BEARING, NEEDLE - PISTON PIN |
| 15 | 12-8M0032839 | WASHER, NEEDLE BEARING RETAINING |
| 16 | 774-9137A12 | PISTON AND PISTON PIN ASSEMBLY Comment: SERIAL 03045260-09999999 |
| 17 | 53-857196 | LOCK RING, PISTON PIN |
| 18 | 39-78816A12 | RING, PISTON |
▶CYLINDER BLOCK AND CRANKCASE ASSEMBLY (47 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 1139-4453A1 | END CAP ASSEMBLY, UPPER Comment: SERIAL 02973754-09999999 |
| 2 | 25-47254 | "O" RING, UPPER END CAP |
| 3 | 26-41953 | OIL SEAL, UPPER END CAP |
| 4 | 10-30225 | SCREW, UPPER END CAP MOUNTING (1") |
| 5 | 851-5883A2 | CYLINDER BLOCK AND CRANKCASE ASSEMBLY |
| 6 | 16-64936 | STUD, CARBURETOR MOUNTING (1 3/16") |
| 7 | 16-33111 | STUD, CRANKCASE TO DRIVE SHAFT HOUSING (1 9/16") |
| 8 | 17-57211 | DOWEL PIN, RETAINER TO CYLINDER BLOCK |
| 9 | 17-23784 | DOWEL PIN, CRANKCASE TO CYLINDER BLOCK |
| 10 | 17-20323 | DOWEL PIN, CYLINDER BLOCK TO MAIN BEARING |
| 11 | 27-55158 | GASKET, SEALING - CYLINDER BLOCK |
| 12 | 66517 | RESTRICTION, CYLINDER BLOCK |
| 13 | 16-8M0034463 | STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (3 7/16") |
| 14 | 16-29989 | STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (1 15/16") - ST |
| 15 | 16-34378 | STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (2 5/16") - POR |
| 16 | 10-69090 | SCREW, CRANKCASE TO CYLINDER BLOCK (2 1/4") |
| 17 | 11-29250 | NUT, CRANKCASE FASTENING SCREW |
| 18 | 55169A1 | RETAINER ASSEMBLY, BALL BEARING Comment: PART OF CRANKSHAFT ASSEMBLY |
| 19 | 30-63742T | BALL BEARING, RETAINER (CRANKSHAFT) - LOWER Comment: PART OF CRANKSHAFT ASSEMBLY |
| 20 | 10-57846 | SCREW, RETAINER TO CYLINDER BLOCK AND CRANKCASE (3/4") |
| 21 | 12-58166 | WASHER, RETAINER SCREW |
| 22 | 26-57847 | STAT-O-SEAL, RETAINER SCREW |
| 23 | 26-41953 | OIL SEAL, CYLINDER BLOCK (LOWER) |
| 24 | 27-854891 | GASKET, CYLINDER BLOCK TO BAFFLE PLATE |
| 25 | 55190 | PLATE, DIVIDER - EXHAUST MANIFOLD |
| 26 | 27-854882 | GASKET, BAFFLE PLATE TO EXHAUST COVER |
| 27 | 551572 | COVER, EXHAUST MANIFOLD |
| 28 | 10-31984 | SCREW, MANIFOLD COVER TO CYLINDER BLOCK (1 3/8") |
| 29 | 10-24228 | SCREW, ADJUSTING - EXHAUST COVER (1 7/8") |
| 30 | 11-20890 | NUT, ADJUSTING SCREW |
| 31 | 26852 | CAP, NYLON - ADJUSTING SCREW |
| 32 | 58124A8 | SWITCH ASSEMBLY, MERCURY |
| 33 | 10-48409 | SCREW, MERCURY SWITHCH TO EXHAUST COVER (5/8") |
| 34 | 1024-91101 | COVER, CYLINDER BLOCK |
| 35 | 27-85490 | GASKET, CYLINDER BLOCK COVER |
| 36 | 10-56500 | SCREW, CYLINDER BLOCK COVER MOUNTING (1 1/4") |
| 37 | 11-8M0207775 | NUT, COVER MOUNTING SCREW |
| 38 | 46933A3 | GROUND STRAP, POWERHEAD TO BOTTOM COWL |
| 39 | 22-328022 | PLUG, PIPE - CYLINDER BLOCK COVER Comment: ICH CONSISTS OF THE |
| 40 | 21-55621A2 | CONNECTOR ASS'Y, BLEED HOSE (LOWER) -SEE NOTE 1 |
| 41 | 21-42657A3 | CHECK VALVE ASSEMBLY -SEE NOTE 1 |
| 42 | 32-9912688 | HOSE, CYLINDER BLEED (16 1/2") -SEE NOTE 1 |
| 43 | 54-20387 | CLAMP, BLEED HOSE -SEE NOTE 1 |
| 44 | 22-57785 | CONNECTOR, BLEED HOSE (UPPER) -SEE NOTE 1 |
| 45 | 57752 | COVER, TRANSFER PORT |
| 46 | 27-552791 | GASKET, TRANSFER PORT COVER |
| 47 | 10-8M0214943 | SCREW, TRANSFER PORT COVER MOUNTING |
▶DRIVE SHAFT HOUSING ASSEMBLY (56 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 1564-4948A1 | DRIVE SHAFT HOUSING ASSEMBLY (LONG SHAFT) |
| 2 | 16-8M0022145 | STUD, DRIVE SHAFT HOUSING TO GEAR HOUSING (1 3/4") |
| 3 | 16-57935 | STUD, DRIVE SHAFT HOUSING TO GEAR HOUSING (3") |
| 4 | 19-824928001 | PLUG, PLASTIC - WATER PICK-UP HOLE |
| 5 | 12-45176 | WASHER, DRIVE SHAFT HOUSING TO GEAR HOUSING STUDS |
| 6 | 60769 | COVER, TRIM - DRIVE SHAFT HOUSING |
| 7 | 10-37571 | SCREW, TRIM COVER TO DRIVE SHAFT HOUSING |
| 8 | 39558 | SEAL, TRIM COVER TO DRIVE SHAFT HOUSING |
| 9 | 39557 | STRIP, RETAINING - TRIM COVER SEAL |
| 10 | 10-48408 | SCREW, STRIP AND SEAL TO DRIVE SHAFT HOUSING (1/2") |
| 11 | 12-30164 | WASHER, RETAINING STRIP SCREW |
| 12 | 32-45679 | TUBE, WATER OUTLET (LONG SHAFT) |
| 13 | 23-23651 | SLEEVE, RUBBER - WATER OUTLET TUBE |
| 14 | 695441 | TUBE, EXHAUST (LONG SHAFT) |
| 15 | 11-862902 | NUT, POWERHEAD STUDS |
| 16 | 46933A2 | GROUND STRAP, BOTTOM COWL TO DRIVE SHAFT HOUSING |
| 17 | 46933A2 | SCREW, GROUND STRAP ATTACHING |
| 18 | 27-385011 | GASKET, EXHAUST PLATE TO DRIVE SHAFT HOUSING |
| 19 | 25305 | CAP, RUBBER - UPPER MOUNT BOLT NUT |
| 20 | 11-23161 | NUT, UPPER MOUNT BOLT |
| 21 | 12-30519 | WASHER, UPPER MOUNT BOLT (3/8 ID) |
| 22 | 12-30521 | WASHER, RUBBER - UPPER MOUNT BOLT |
| 23 | 12-30520 | WASHER, UPPER MOUNT BOLT (37/64 ID) |
| 24 | 79680A1 | COVER, UPPER MOUNT - OUTSIDE HALF |
| 25 | 79680A1 | COVER, UPPER MOUNT - INSIDE HALF |
| 26 | 75301 | MOUNT, RUBBER - UPPER |
| 27 | 24929 | PACKING, "U" CUP - UPPER MOUNT COVERS |
| 28 | 10-37941 | SCREW, UPPER MOUNT COVER - REAR (1 3/4") |
| 29 | 10-49987 | SCREW, UPPER MOUNT COVER - FRONT (1 1/2") |
| 30 | 11-35888 | NUT, UPPER MOUNT COVER FASTENING SCREW |
| 31 | 25067 | BUMPER, RUBBER - LOWER MOUNT SCREW |
| 32 | 10-75284 | SCREW, LOWER MOUNT (5 1/2") |
| 33 | 12-28051 | WASHER, LOWER MOUNT SCREW |
| 34 | 12-28053 | WASHER, RUBBER - LOWER MOUNT SCREW |
| 35 | 75302T1 | MOUNT, RUBBER - LOWER |
| 36 | 12-30119 | WASHER, LOWER MOUNT SCREW |
| 37 | 11-25096 | NUT, LOWER MOUNT SCREW |
| 38 | 69592F1 | CLAMP, LOWER MOUNT TO DRIVE SHAFT HOUSING |
| 39 | 10-29256 | SCREW, LOWER MOUNT CLAMP TO DRIVE SHAFT HOUSING (7/8") |
| 40 | 24-35522 | SPRING, TENSION - LOWER MOUNT CLAMP |
| 41 | 35474T | COVER, LOWER MOUNT CLAMP |
| 42 | 10-29722 | SCREW, COVER TO LOWER CLAMP (5/8") |
| 43 | 11-35521 | NUT, LOWER MOUNT CLAMP COVER |
| 44 | 11-8M0204653 | NUT, GEAR HOUSING TO DRIVE SHAFT HOUSING STUDS |
| 45 | 22-390721 | PLUG, GREASE - REVERSE LOCK HOLE Comment: SERIAL 00000000-02979678 |
| 46 | 52920 | LEVER, REVERSE LOCK Comment: SERIAL 00000000-02979678 |
| 47 | 17-24887 | PIN, REVERSE LOCK LEVER Comment: SERIAL 00000000-02979678 |
| 48 | 24-25122 | SPRING, TENSION - PUSH ROD Comment: SERIAL 00000000-02979678 |
| 49 | 45788 | ROD, PUSH - REVERSE LOCK (LONG SHAFT) Comment: SERIAL 00000000-02979678 |
| 50 | 18-25191 | COTTER PIN, PUSH ROD TO REVERSE LOCK Comment: SERIAL 00000000-02979678 |
| 51 | 52917 | GUIDE, PUSH ROD SERIAL #3043031 AND UP Comment: SERIAL 03043031-09999999 |
| 52 | 59720 | ROD, PUSH - REVERSE LOCK (LONG SHAFT) Comment: SERIAL 03043031-09999999 |
| 53 | 11-60049 | NUT, JAM - PUSH ROD Comment: SERIAL 03043031-09999999 |
| 54 | 59722 | ROD END, PUSH ROD Comment: SERIAL 03043031-09999999 |
| 55 | 17-72524 | PIN, REVERSE LOCK LEVER Comment: SERIAL 03043031-09999999 |
| 56 | 18-25191 | COTTER PIN, PUSH ROD TO REVERSE LOCK Comment: SERIAL 03043031-09999999 |
▶FLYWHEEL, IGNITION COIL AND SWITCH BOX (43 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 11-8M0214915 | NUT, FLYWHEEL |
| 2 | 12-36281 | WASHER, FLYWHEEL NUT |
| 3 | 25-37340 | "O" RING, FLYWHEEL HUB |
| 4 | 28-45554 | KEY, FLYWHEEL DRIVE |
| 5 | 235-3877A2 | FLYWHEEL ASSEMBLY |
| 6 | 10-35563 | SCREW, FLEXIBLE PLATE TO FLYWHEEL (9/16") |
| 7 | 50-39838 | RATCHET, FLYWHEEL |
| 8 | 10-32417 | SCREW, RATCHET TO FLYWHEEL (5/8") |
| 9 | 13-26992 | LOCKWASHER, RATCHET SCREW |
| 10 | 10-55181 | SCREW, MAGNET HOLDER TO FLYWHEEL (1 1/8") |
| 11 | 398-4424 | STATOR, ALTERNATOR (ELECTRIC) |
| 12 | 10-56787 | SCREW, STATOR TO UPPER END CAP (2") |
| 13 | 13-58308 | LOCKWASHER, STATOR SCREW |
| 14 | 13-30809 | WASHER, WAVE - DISTRIBUTOR ROTOR |
| 15 | 393-4665 | ROTOR, DISTRIBUTOR |
| 16 | 393-4560 | BODY, DISTRIBUTOR |
| 17 | 22-996642 | ELBOW, VENT HOSE TO DISTRIBUTOR BODY |
| 18 | 32-8M0108355 | HOSE, VENT - DISTRIBUTOR (16 1/2") |
| 19 | 22-31521 | ELBOW, VENT HOSE TO BOTTOM COWL |
| 20 | 54-22875 | CLAMP, VENT HOSE |
| 21 | 10-62568 | SCREW, VENT HOSE CLAMP ATTACHING |
| 22 | 8M0084613 | "D" WASHER, VENT HOSE CLAMP SCREW |
| 23 | 84-813715A1 | LEAD ASSEMBLY, SPARK PLUG (HIGH TENSION) |
| 24 | 33-61976 | SPARK PLUG (AC #M-40FF)-SEE NOTE BELOW |
| 25 | 85-63709A1 | PROTECTOR ASSEMBLY, SPARK PLUG |
| 26 | 85-94589 | BOOT, SPARK PLUG LEAD |
| 27 | 25-56474 | INSULATOR, SPARK PLUG LEAD |
| 28 | 54-47483 | CLAMP, SPARK PLUG LEAD ATTACHING |
| 29 | 393-3295A2 | LEAD ASSEMBLY, IGNITION COIL |
| 30 | 332-2854T01 | BOOT, LEAD TO IGNITION COIL |
| 31 | 54-22627 | CLAMP, IGNITION COIL LEAD ATTACHING |
| 32 | 10-62568 | SCREW, IGNITION COIL LEAD CLAMP |
| 33 | 8M0084613 | "D" WASHER, ATTACHING CLAMP SCREW |
| 34 | 332-4172A4 | SWITCH BOX ASSEMBLY, COMPLETE |
| 35 | 10-55650 | SCREW, SWITCH BOX TO FRONT SUPPORT BRACKET (1") |
| 36 | 10-45218 | SCREW, GROUND WIRE TO SWITCH BOX (3/8") |
| 37 | 12-45075 | WASHER, SWITCH BOX TERMINAL |
| 38 | 11-45076 | NUT, SWITCH BOX TERMINAL |
| 39 | 336-4592A2 | IGNITION COIL ASSEMBLY, COMPLETE |
| 40 | 10-64278 | SCREW, IGNITION COIL TO FRONT SUPPORT BRACKET (1") |
| 41 | 11-8M0207775 | NUT, IGNITION COIL SCREW |
| 42 | 84-93388A14 | GROUND WIRE, CRANKCASE TO FRONT SUPPORT BRACKET |
| 43 | 60172 | RESTRICTOR, VENT HOSE |
▶FUEL PUMP ASSEMBLY AND FUEL LINES (20 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 55156A5 | FUEL PUMP ASSEMBLY |
| 2 | 21-30430A3 | CHECK VALVE ASSEMBLY |
| 3 | 55278A1 | DIAPHRAGM KIT |
| 6 | 23004 | RETAINER, CHECK VALVE |
| 7 | 10-43725 | SCREW, RETAINER TO HOUSING |
| 8 | 10-69067 | SCREW, FUEL PUMP MOUNTING (1 3/8") |
| 9 | 22-328022 | PLUG, PIPE - FUEL PUMP |
| 10 | 32-55828A1 | FUEL LINE, FUEL PUMP TO CARBURETOR (13 3/4") |
| 11 | 22-8M0123050 | FITTING, FUEL LINE TO CARBURETOR (45 ) |
| 12 | 22-30174 | ELBOW, PUMP INLET TO FUEL LINE (90 ) |
| 13 | 22-30175 | SLEEVE, RUBBER - ELBOW |
| 14 | 22-30177 | NUT, ELBOW TO FUEL LINE |
| 15 | 32-56367 | FUEL LINE, FUEL PUMP TO ADAPTOR |
| 16 | 22833 | ADAPTOR, CHECK UNIT (FUEL PUMP) |
| 17 | 23069 | STEM, CHECK UNIT ADAPTOR |
| 18 | 25-16524 | "O" RING, ADAPTOR STEM |
| 19 | 24-23067T | SPRING, ADAPTOR STEM |
| 20 | 30188 | CUP WASHER, ADAPTOR |
| 21 | 10-56500 | SCREW, ADAPTOR TO BOTTOM COWL (1 1/4") |
| 22 | 11-8M0207775 | NUT, ADAPTOR SCREW |
▶GEAR HOUSING ASSEMBLY, COMPLETE (PAGE 1) (48 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 1626-3927A5 | GEAR HOUSING ASSEMBLY, COMPLETE (LONG SHAFT)SEE NOTE BELOW Comment: SERIAL 03043031-09999999 |
| 1 | 1626-3927A6 | GEAR HOUSING ASSEMBLY Comment: SERIAL 03043031-09999999 |
| 3 | 17-21438 | PIN, DOWEL - GEAR HOUSING |
| 4 | 16-57934 | STUD, WATER PUMP BODY AND BSE TO GEAR HOUSING |
| 5 | 16-8M0034453 | STUD, GEAR HOUSING TO DRIVE SHAFT HOUSING |
| 6 | 31-62091T | BEARING, ROLLER - DRIVE SHAFT |
| 7 | 92815 | PLATE, SUPPORT - EXHAUST TUBE |
| 8 | 37721001 | SEAL, EXHAUST TUBE |
| 9 | 43-55607 | GEAR, PINION - DRIVE SHAFT |
| 10 | 11-55910 | NUT, PINION GEAR TO DRIVE SHAFT |
| 11 | 27-32771 | GASKET, WATER PUMP BASE TO GEAR HOUSING |
| 12 | 25-26855 | "O" RING, WATER PUMP BASE |
| 13 | 46-77516A1 | WATER PUMP BASE ASSEMBLY |
| 14 | 26-79831 | OIL SEAL, WATER PUMP BASE |
| 15 | 26-90562 | OIL SEAL, WATER PUMP BASE |
| 16 | 17-35973 | DOWEL PIN, WATER PUMP BASE TO WATER PUMP BODY |
| 17 | 27-19553 | GASKET, LOWER - WATE PUMP BASE TO FACE PLATE |
| 18 | 32768 | PLATE, FACE - WATER PUMP BASE TO WATER PUMP BODY Comment: SERIAL 03043031-09999999 |
| 19 | 27-19551 | GASKET, UPPER - FACE PLATE TO WATER PUMP BODY |
| 20 | 47-89983T | IMPELLER, WATER PUMP |
| 21 | 28-8M0032837 | KEY, IMPELLER DRIVE |
| 22 | 46-77822A1 | WATER PUMP BODY ASSEMBLY |
| 23 | 48753 | INSERT, WATER PUMP BODY |
| 24 | 26-32121 | OIL SEAL, WATER PUMP BODY |
| 25 | 12-8M0204649 | WASHER, WATER PUMP BODY AND BASE STUDS |
| 26 | 11-826709109 | NUT, WATER PUMP BODY AND BASE STUDS |
| 27 | 26-38452 | SEAL, RUBBER - WATER INLET TUBE (WATER PUMP BODY) |
| 28 | 12-38453 | WASHER, NYLON - WATER PUMP BODY |
| 29 | 25-20273 | RING, RUBBER - CENTRIFUGAL SLINGER (DRIVE SHAFT) |
| 30 | 25-29619 | "O" RING, UPPER - DRIVE SHAFT |
| 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 | 55420A1 | SHAFT ASSEMBLY, SHIFT - LOWER Comment: SERIAL 03043031-09999999 |
| 36 | 53-29641 | CLIP, RETAINING - SHIFT SHAFT |
| 37 | 25-25439 | "O" RING, SHIFT SHAFT BUSHING |
| 38 | 23-77631A2 | BUSHING ASSEMBLY, SHIFT SHAFT Comment: SERIAL 03043031-09999999 |
| 39 | 26-24590 | OIL SEAL, SHIFT SHAFT BUSHING (LOWER) Comment: SERIAL 03043031-09999999 |
| 40 | 12-31266 | WASHER, RUBBER - SHIFT SHAFT BUSHING Comment: SERIAL 03043031-09999999 |
| 41 | 43308T1 | CAM, REVERSE LOCKING Comment: SERIAL 03043031-09999999 |
| 42 | 78036 | BASE, REVERSE LOCKING Comment: SERIAL 03043031-09999999 |
| 43 | 45-57359A1 | DRIVE SHAFT ASSEMBLY (LONG SHAFT) |
| 44 | 24-20254 | SPRING, COMPRESSION - DRIVE SHAFT |
| 45 | 17-30545 | PIN, DRIVE SHAFT |
| 46 | 23-52709 | SLEEVE, LUBRICATION - DRIVE SHAFT |
| 47 | 15-20929A1 | SHIM, BEARING TO GEAR HOUSING (.002-3-5-10) |
| 48 | 31-38146A1 | ROLLER BEARING ASSEMBLY, TAPERED - DRIVE SHAFT-SEE NOTE BE |
▶GEAR HOUSING ASSEMBLY, COMPLETE (PAGE 2) (35 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 1626-3927A5 | GEAR HOUSING ASSEMBLY, COMPLETE (LONG SHAFT) Comment: -SEE NOTE BELOW SERIAL 03043031-09999999 |
| 1 | 1626-3927A6 | GEAR HOUSING ASSEMBLY Comment: SEE PAGE 27 FOR BREAKDOWN SERIAL 03043031-09999999 |
| 49 | 760394 | CAM, SHIFT |
| 50 | 38441 | FOLLOWER, CAM |
| 51 | 20843 | SLIDE, CROSS PIN |
| 52 | 24-39845 | SPRING, COMPRESSION - CAM FOLLOWER |
| 53 | 15-38374A1 | SHIM, BEARING CUP TO GEAR HOUSING (.002-3-4-10) |
| 54 | 31-38356A1 | TAPERED ROLLER BEARING ASSEMBLY |
| 55 | 31-21739 | BEARING, ROLLER - FORWARD GEAR |
| 56 | 43-55608T4 | FORWARD GEAR ASSEMBLY |
| 57 | 52-92911T | RATCHET, SLIDING CLUTCH |
| 58 | 17-8M0020942 | PIN, CROSS - RATCHET TO PROPELLER SHAFT |
| 59 | 24-38114 | SPRING, RETAINING - CROSS PIN |
| 60 | 44-75365 | SHAFT, PROPELLER |
| 61 | 43-79158T | REVERSE GEAR ASSEMBLY |
| 62 | 15-20927A1 | SHIM, THRUST WASHER TO GEAR HOUSING (.002-3-5-10) |
| 63 | 12-32004 | WASHER, THRUST - REVERSE GEAR |
| 64 | 30-20839T | BEARING, BALL - REVERSE GEAR |
| 65 | 25-31986 | "O" RING, BEARING CARRIER |
| 66 | 69386T1 | BEARING CARRIER ASSEMBLY |
| 67 | 31-21700 | BEARING, ROLLER - BEARING CARRIER |
| 68 | 26-56788 | OIL SEAL, BEARING CARRIER |
| 69 | 28-30281 | KEY, LOCATING - BEARING CARRIER |
| 70 | 14-53012 | TAB WASHER, GEAR HOUSING COVER |
| 71 | 11-87763 | COVER, GEAR HOUSING |
| 72 | 97-31640Q4 | TRIM TAB ASSEMBLY, GEAR HOUSING |
| 73 | 10-66024 | SCREW, TRIM TAB TO GEAR HOUSING |
| 74 | 55908A1 | THRUST HUB AND WASHER ASSEMBLY |
| 75 | 12-31992 | WASHER, CUPPED - THRUST HUB |
| 76 | 12-55907 | WASHER, SPLINED - PROPELLER SHAFT |
| 77 | 11-82671120 | NUT, PROPELLER |
| 78 | 12-45176 | WASHER, DRIVE SHAFT HOUSING TO GEAR HOUSING STUD (7/16") |
| 79 | 11-8M0204653 | NUT, DRIVE SHAFT HOUSING TO GEAR HOUSING STUD (7/16") |
| 80 | 12-8M0214963 | WASHER, DRIVE SHAFT HOUSING TO GEAR HOUSING STUD (3/8") |
| 81 | 11-8M0204726 | NUT, DRIVE SHAFT HOUSING TO GEAR HOUSING STUD (3/8") |
▶MISCELLANEOUS PARTS/ACCESSORIES (1 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 50-55601A1 | ELECTRIC STARTER KIT |
▶SHIFT CONTROL LINKAGE (20 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 87876A1 | BRACKET, SHIFT ANCHOR - UPPER |
| 2 | 10-815549 | SCREW, ANCHOR BRACKET TO CYLINDER BLOCK (2") |
| 3 | 10-69096 | SCREW, UPPER ANCHOR BRACKET TO CRANKCASE (1 3/4") |
| 4 | 11-29250 | NUT, UPPER ANCHOR BRACKET SCREW |
| 5 | 87874 | SLIDE, SHIFT ACTUATING |
| 6 | 56193 | LATCH, SHIFT ACTUATING SLIDE (SHIFT CABLE) |
| 7 | 10-39620 | SCREW, LATCH TO SHIFT ACTUATING SLIDE |
| 8 | 24-27087 | SPRING, COMPRESSION - LATCH SCREW |
| 9 | 39516 | SLIDE, NYLON - ANCHOR BRACKET (SHIFT ACTUATING SLIDE) |
| 10 | 39515 | END CAP, NYLON - ANCHOR BRACKET SLIDE |
| 11 | 87876A1 | BRACKET, SHIFT ANCHOR - LOWER |
| 12 | 10-20012 | SCREW, UPPER ANCHOR BRACKET TO LOWER ANCHOR BRACKET (1 5/8") |
| 13 | 11-826709109 | NUT, UPPER ANCHOR BRACKET SCREW |
| 14 | 59110A1 | SHIFT SHAFT ASSEMBLY, UPPER (LONG SHAFT) Comment: SERIAL 02973754-09999999 |
| 15 | 93960A1 | COUPLING, UPPER SHIFT SHAFT |
| 16 | 39519 | CUP, RETAINER - ANCHOR BRACKET (SHIFT CABLE BARREL) |
| 17 | 87609A1 | LEVER, NYLON - SHIFT CABLE LOCKING (UPPER ANCHOR BRACKET) |
| 18 | 17-47175 | PIN, LOCKING LEVER AND COVER FASTENING |
| 19 | 39667 | COVER, NYLON - SHIFT CABLE |
| 20 | 39536 | LINK, LOCKING LEVER TO COVER |
▶STARTER MOTOR, RECTIFIER AND WIRING HARNESS (43 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| -- | 52907 | INSULATOR, SUPPORT TO BOTTOM COWL |
| 1 | 57580A1 | RECTIFIER ASSEMBLY |
| 2 | 10-76621 | SCREW, RECTIFIER TO BOTTOM COWL (7/8") |
| 3 | 13-22773 | LOCKWASHER, RECTIFIER SCREW |
| 4 | 10,13-26996 | LOCKWASHER, RECTIFIER TERMINAL |
| 5 | 11-45076 | NUT, RECTIFIER TERMINAL (10-32) |
| 6 | 89-889274 | CHOKE SOLENOID ASSEMBLY |
| 7 | 10-26065 | SCREW, CHOKE SOLENOID TO FRONT SUPPORT BRACKET (1") |
| 8 | 11-29250 | NUT, CHOKE SOLENOID SCREW |
| 9 | 13-26996 | LOCKWASHER, CHOKE SOLENOID TERMINAL |
| 10 | 11-45076 | NUT, CHOKE SOLENOID TERMINAL |
| 11 | 89008A2 | PLUNGER ASSEMBLY, CHOKE SOLENOID |
| 12 | 19-35827 | PLUG, BOTTOM COWL |
| 13 | 11-30428 | FASTENER, PLUG TO BOTTOM COWL |
| 14 | 34228 | SUPPORT, EXTERNAL WIRING HARNESS |
| 15 | 10-31163 | SCREW, SUPPORT TO BOTTOM COWL |
| 16 | 11-8M0207775 | NUT, SUPPORT FASTENING SCREW |
| 17 | 10-98256 | SCREW, WIRING HARNESS GROUND TO BOTTOM COWL (1/2") |
| 18 | 13-24669 | LOCKWASHER, WIRING HARNESS GROUND SCREW |
| 19 | 56370 | WIRING HARNESS (INTERNAL) |
| 20 | 54-76368 | CLAMP, WIRING HARNESS ATTACHING |
| 21 | 10-20189 | SCREW, WIRING HARNESS CLAMP TO BOTTOM COWL (3/4") |
| 22 | 24-28975 | SPRING, GARTER - INTERNAL WIRING HARNESS |
| 23 | 61990 | STA-STRAP, WIRING HARNESS |
| 24 | 54-22740 | CLAMP, WIRING HARNESS (3/8") |
| 25 | 10-62568 | SCREW. WIRING HARNESS CLAMP ATTACHING |
| 26 | 8M0084613 | "D" WASHER, WIRING HARNESS CLAMP SCREW |
| 27 | 50-55601A2 | STARTER MOTOR ASSEMBLY |
| 28 | 10-35213 | SCREW, STARTER MOTOR TO CRANKCASE (1 5/8") |
| 29 | 13-26992 | LOCKWASHER, CABLE TO STARTER MOTOR NUT |
| 30 | 11-20890 | NUT, CABLE TO STARTER MOTOR |
| 31 | 84-93389A3 | CABLE, STARTER MOTOR TO STARTER SOLENOID |
| 32 | 10-69035 | SCREW, GROUND WIRE TO STARTER MOTOR (5/8") |
| 33 | 13-26992 | LOCKWASHER, GROUND WIRE FASTENING SCREW |
| 34 | 25661T1 | SOLENOID, STARTER |
| 35 | 10-69028 | SCREW, STARTER SOLENOID TO FRONT SUPPORT BRACKET (3/8") |
| 36 | 13-26992 | WASHER, STARTER SOLENOID SCREW |
| 37 | 10,13-26996 | LOCKWASHER, STARTER SOLENOID TERMINAL |
| 38 | 10,11-68219 | NUT, STARTER SOLENOID TERMINAL |
| 39 | 38938 | BOOT, RUBBER - STARTER SOLENOID TERMINAL (SMALL) |
| 40 | 13-8M0204647 | LOCKWASHER, STARTER SOLENOID TERMINAL (5/16) |
| 41 | 11-22053 | NUT, STARTER SOLENOID TERMINAL (5/16) |
| 42 | 46265 | BOOT, RUBBER - STARTER SOLENOID TERMINAL (LARGE) |
▶THROTTLE CONTROL LINKAGE AND SPARK ADVANCE (56 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| -- | 15-60821 | SHIM, TRIGGER COIL |
| 1 | 39521 | SHAFT, THROTTLE CONTROL |
| 2 | 57784A1 | THROTTLE ACTUATOR ASSEMBLY |
| 3 | 23-26602 | BUSHING, NYLON - THROTTLE CONTROL SHAFT |
| 4 | 10-69022 | SCREW, THROTTLE ACTUATOR TO THROTTLE CONTROL SHAFT |
| 5 | 13-26996 | LOCKWASHER, THROTTLE ACTUATOR SCREW |
| 6 | 12-847883 | WASHER, THROTTLE ACTUATOR SCREW |
| 7 | 23-39524 | BUSHING, NYLON - THROTTLE CONTROL SHAFT |
| 8 | 39522T | BRACKET, THROTTLE CONTOL SHAFT |
| 9 | 10-24228 | SCREW, ADJUSTING - THROTTLE CONTROL BRACKET (1 7/8") |
| 10 | 11-20890 | NUT, JAM - ADJUSTING SCREW |
| 11 | 26852 | CAP, NYLON - ADJUSTING SCREW |
| 12 | 10-20639 | SCREW, THROTTLE CONTROL BRACKET (1 1/8") |
| 13 | 11-29250 | NUT, THROTTLE CONTOL BRACKET SCREW |
| 14 | 55167 | CAP, THROTTLE |
| 15 | 10-34353 | SCREW, THROTTLE CAP TO THROTTLE CONTROL SHAFT (1") |
| 16 | 13-35048 | LOCKWASHER, THROTTLE CAP SCREW |
| 17 | 57440 | SWIVEL, LINKAGE - THROTTLE CONTROL SHAFT |
| 18 | 25996A1 | SWIVEL LINK ROD ASSEMBLY |
| 19 | 11-25168 | NUT, JAM - UPPER LINK ROD ADJUSTING |
| 20 | 55160 | ROD, LINK - UPPER |
| 21 | 57440 | SWIVEL, UPPER LINK ROD TO THROTTLE CONTROL LEVER |
| 22 | 55187 | LEVER, THROTTLE CONTROL |
| 23 | 10-818165 | SCREW, THROTTLE CONTROL LEVER TO CYLINDER BLOCK (1 3/4") |
| 24 | 23-55164 | BUSHING, THROTTLE CONTROL LEVER SCREW |
| 25 | 23-55171 | BUSHING, THROTTLE CONTROL LEVER SCREW |
| 26 | 24-55162 | SPRING, RETURN - SPARK ADVANCE LEVER |
| 27 | 55188 | LEVER, SPARK ADVANCE |
| 28 | 12-68410 | WASHER, THROTTLE CONTOL LEVER SCREW |
| 29 | 39483 | LATCH, THROTTLE CONTROL LEVER (THROTTLE CABLE) |
| 30 | 10-69026 | SCREW, LATCH TO THROTTLE CONTROL LEVER (7/8") |
| 31 | 24-20099 | SPRING, COMPRESSION - LATCH SCREW |
| 32 | 11-826709109 | NUT, LATCH SCREW |
| 33 | 58391 | BALL JOINT, SPARK ADVANCE LEVER Comment: SERIAL 03043031-09999999 |
| 34 | 11-30506 | NUT, BALL JOINT TO SPARK ADVANCE LEVER |
| 35 | 11-25168 | NUT, JAM - LINK ROD ADJUSTING |
| 36 | 55159 | LINK ROD |
| 37 | 60826 | SWIVEL, LINK ROD TO POSITIONING PLATE Comment: SERIAL 03122534-09999999 |
| 38 | 13-29720 | WAVE WASHER, LINK ROD SWIVEL |
| 39 | 12-20583 | WASHER, LINK ROD SWIVEL |
| 40 | 18-210711 | COTTER PIN, LINK ROD SWIVEL |
| 41 | 24-60820A1 | SPRING, SPARK ADVANCE Comment: SERIAL 00000000-02979678 |
| 41 AND | 24-60820A1 | SPRING ASSEMBLY, SPARK ADVANCE Comment: SERIAL 03122534-09999999 |
| 42 | 24-60820A1 | PIN, TRIGGER COIL RETAINING Comment: SERIAL 00000000-02979678 |
| 43 | 55166 | PLATE, POSITIONING - TRIGGER COIL |
| 44 | 53-21058 | RING, SNAP - TRIGGER COIL RETAINING PIN |
| 45 | 15-55324A1 | SHIM ASSEMBLY, POSITIONING PLATE |
| 46 | 55305 | PLATE, WEAR - POSITIONING PLATE |
| 47 | 55296 | PLATE, SPARK ADVANCE |
| 48 | 10-55336 | SCREW, SPARK ADVANCE PLATE TO STARTER HOUSING (5/8") |
| 49 | 12-8M0204649 | WASHER, SPARK ADVANCE PLATE SCREW |
| 50 | 15-55172A1 | SHIM ASSEMBLY, SPARK ADVANCE PLATE |
| 51 | 332-4608A2 | TRIGGER COIL ASSEMBLY Comment: SERIAL 03122534-09999999 |
| 52 | 54-24836 | CLAMP, TRIGGER COIL LEAD |
| 53 | 10-62568 | SCREW, TRIGGER COIL LEAD TO STARTER HOUSING |
| 54 | 8M0084613 | "D" WASHER, TRIGGER COIL LEAD SCREW |
▶TOP COWL, SUPPORT BRACKETS AND STARTER ASSEMBLY (75 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 2138-4413A2 | TOP COWL ASSEMBLY Comment: SERIAL 03043031-09999999 |
| 2 | 58657 | INSERT, ROPE GUIDE - TOP COWL Comment: SERIAL 03043031-09999999 |
| 3 | 53-72168 | RING, RETAINING - ROPE GUIDE INSERT Comment: SERIAL 03043031-09999999 |
| 4 | 16-21391 | STUD, TOP COWL TO SUPPORT BRACKET - REAR (1 1/2") Comment: SERIAL 03043031-09999999 |
| 5 | 16-21553 | STUD, TOP COWL TO SUPPORT BRACKET - FRONT (1 1/2") Comment: SERIAL 03043031-09999999 |
| 6 | 11-82670911 | NUT, TOP COWL STUD |
| 7 | 39609 | SHIELD, REAR - TOP COWL |
| 8 | 10-38055 | SCREW, REAR SHIELD TO TOP COWL (5/8") |
| 9 | 12-26014 | WASHER, REAR SHIELD SCREW |
| 10 | 39619 | BUTTON, FRONT COVER RELEASE - TOP COWL |
| 11 | 24-37911 | SPRING, COMPRESSION - FRONT COVER RELEASE BUTTON |
| 12 | 60865 | CATCH, FRONT COVER - TOP COWL |
| 13 | 10-69011 | SCREW, FRONT COVER CATCH TO TOP COWL (7/8") |
| 14 | 13-26996 | LOCKWASHER, FRONT COVER CATCH SCREW |
| 15 | 14-20165 | TAB WASHER, SHEAVE SHAFT NUT |
| 16 | 11-20166 | NUT, SHEAVE SHAFT (LEFT HAND THREAD) |
| 17 | 25-39597 | GROMMET, STARTER HOUSING |
| 18 | 70970 | CABLE ASSEMBLY, INTERLOCK |
| 19 | 10-32228 | SCREW, INTERLOCK CABLE TO EXHAUST PLATE (5/8") |
| 20 | 10-69022 | SCREW, INTERLOCK CABLE TO STARTER HOUSING (1/2") |
| 21 | 13-27660 | LOCKWASHER, INTERLOCK CABLE SCREW |
| 22 | 12-26013 | WASHER, INTERLOCK CABLE SCREW |
| 23 | 57236 | CAM, SLIDING - STARTER HOUSING |
| 24 | 24-70086 | SPRING, SLIDING CAM |
| 25 | 12-37998 | WASHER, INTERLOCK CABLE |
| 26 | 18-26953 | COTTER PIN, INTERLOCK CABLE TO SLIDING CAM |
| 27 | 65757A1 | TOGGLE, STARTER INTERLOCK |
| 28 | 10-57249 | SCREW, TOGGLE TO STARTER HOUSING |
| 29 | 23-26856 | BUSHING, TOGGLE SCREW |
| 30 | 24-57279 | SPRING, TOGGLE SCREW |
| 31 | 55860 | PULLEY, STARTER CABLE |
| 32 | 10-45210 | SCREW, PULLEY TO STARTER HOUSING (1 1/4") |
| 33 | 12-22887 | WASHER, PULLEY SCREW |
| 34 | 23-309772 | SPACER, PULLEY SCREW |
| 35 | 11-24656 | NUT, PULLEY SCREW |
| 36 | 76079A8 | HOUSING, STARTER |
| 37 | 10-37562 | SCREW, HOUSING TO CRANKCASE (1") |
| 38 | 13-8M0204647 | LOCKWASHER, STARTER HOUSING SCREW |
| 39 | 60825 | BRACKET, LIMIT STOP - REAR Comment: SERIAL 03122534-09999999 |
| 40 | 10-20639 | SCREW, LIMIT STOP BRACKET TO CYLINDER BLOCK (1 1/8") |
| 41 | 11-29250 | NUT, LIMIT STOP BRACKET SCREW |
| 42 | 10-26065 | SCREW, STARTER HOUSING TO LIMIT STOP BRACKET - REAR (1") |
| 43 | 11-826709111 | NUT, STARTER HOUSING SCREW |
| 44 | 25-39597 | GROMMET, LIMIT STOP BRACKET |
| 45 | 10-37562 | SCREW, LIMIT STOP BRACKET TO CYLINDER BLOCK (1") |
| 46 | 13-8M0204647 | LOCKWASHER, LIMIT STOP BRACKET SCREW |
| 47 | 39835 | RETAINER, STARTER REWIND |
| 48 | 24-39502T02 | SPRING, STARTER REWIND |
| 49 | 23-28912 | BUSHING, SPRING GUIDE |
| 50 | 76053A1 | STARTER SHEAVE ASSEMBLY |
| 51 | 30596 | PAWL, STARTER |
| 52 | 13-36206 | WASHER, WAVE - STARTER PAWL |
| 53 | 23-28919 | BUSHING, NYLON - SHEAVE SHAFT SPACER |
| 54 | 23-61005 | SPACER, SHEAVE SHAFT |
| 55 | 39840 | RETAINER, WAVE WASHER |
| 56 | 12-57837 | WASHER, WAVE WASHER RETAINER |
| 57 | 13-20160 | WASHER, WAVE - RETAINER TENSION |
| 58 | 66845 | PLATE, RETAINER - STARTER PAWL |
| 59 | 24-26068 | SPRING, RETAINER PLATE TO STARTER SHEAVE |
| 60 | 45477A1 | SHAFT, SHEAVE |
| 61 | 39173 | BRACKET, SUPPORT - TOP COWL (REAR) |
| 62 | 90435 | MOUNT, RUBBER - REAR SUPPORT BRACKET |
| 63 | 11-8267089 | NUT, RUBBER MOUNT OT CYLINDER BLOCK COVER (LOWER) |
| 64 | 11-826709109 | NUT, RUBBER MOUNT OT REAR SUPPORT BRACKET (UPPER) |
| 65 | 10-37562 | SCREW, REAR SUPPORT BRACKET TO BOTTOM COWL (1") |
| 66 | 13-8M0204647 | LOCKWASHER, REAR SUPPORT BRACKET SCREW |
| 67 | 67323 | BRACKET, SUPPORT - TOP COWL (FRONT) |
| 68 | 10-37562 | SCREW, FRONT SUPPORT BRACKET TO BOTTOM COWL (1") |
| 69 | 13-8M0204647 | LOCKWASHER, FRONT SUPPORT BRACKET SCREW |
| 70 | 90435 | MOUNT, RUBBER - FRONT SUPPORT BRACKET |
| 71 | 11-8267089 | NUT, RUBBER MOUNT TO CRANKCASE (LOWER) |
| 72 | 11-826709109 | NUT, RUBBER MOUNT TO FRONT SUPPORT BRACKET (UPPER) |
| 73 | 50-12066Q10 | STARTER CABLE ASSEMBLY |
| 74 | 30782 | HANDLE, STARTER CABLE |
| 75 | 79470A1 | RETAINER, STARTER CABLE AND HANDLE |
100-Hour / Annual Service Checklist
Regular maintenance keeps your Mercury 400 (2 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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