Mercury 400 (2 CYL.) (2874704 THRU 3336257) Parts & Diagrams

OEM and aftermarket replacement parts for Mercury 400 (2 CYL.). Scroll down for exploded parts diagrams (17), specifications, and maintenance reference.

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) BOTTOM COWL AND EXHAUST PLATE ASSEMBLY
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) CARBURETOR ASSEMBLY
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) CARBURETOR CHOKE LINKAGE
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) CLAMP AND SWIVEL BRACKET ASSEMBLY
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) COWLING AND FRONT COVER
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) CRANKSHAFT, PISTON AND CONNECTING ROD ASSEMBLY
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) CYLINDER BLOCK AND CRANKCASE ASSEMBLY
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) DRIVE SHAFT HOUSING ASSEMBLY
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) FLYWHEEL, IGNITION COIL AND SWITCH BOX
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) FUEL PUMP ASSEMBLY AND FUEL LINES
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) GEAR HOUSING ASSEMBLY, COMPLETE (PAGE 1)
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) GEAR HOUSING ASSEMBLY, COMPLETE (PAGE 2)
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) MISCELLANEOUS PARTS/ACCESSORIES
Ref OEM Part # Part Name
- 50-55601A1 ELECTRIC STARTER KIT
SHIFT CONTROL LINKAGE (20 parts) SHIFT CONTROL LINKAGE
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) STARTER MOTOR, RECTIFIER AND WIRING HARNESS
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) THROTTLE CONTROL LINKAGE AND SPARK ADVANCE
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) TOP COWL, SUPPORT BRACKETS AND STARTER ASSEMBLY
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.

  1. Replace water pump impeller and inspect wear plate
  2. Change engine oil and oil filter (check drain plug washer)
  3. Replace spark plugs and check ignition timing
  4. Drain and refill lower unit gear oil; inspect for water contamination
  5. Inspect fuel lines, primer bulb, and fuel filter for deterioration
  6. Check and replace sacrificial anodes (zinc or aluminum)
  7. Inspect propeller for damage; check shaft seal and cotter pin
  8. Check valve clearance (refer to service manual for specifications)
  9. Lubricate all grease points (steering, tilt tube, shift linkage)
  10. Inspect control cables and throttle/shift linkage for smooth operation
  • Pro Tip: Always flush the engine with fresh water after saltwater use — even a quick 10-minute flush significantly extends component life.
  • Pro Tip: Use fuel stabilizer in the tank before winter storage, and fog the cylinders to prevent internal corrosion during extended periods of non-use.

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