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Mercury 250 (3.0L EFI) (1B504989 & Up) Parts & Diagrams
🔎 Mercury 250 (3.0L EFI) Reference Library — Exploded parts diagrams (37 diagrams), specifications, common issues, and maintenance checklist.
The Mercury 250 (3.0L EFI) is a 4-Stroke, V8 64-degree, DOHC, 32-valve outboard motor. Designed for large center-consoles, offshore sport-fishing boats, and multi-engine configurations.
Quick Reference Specifications
| Specification | Value |
|---|---|
| Engine Type | 4-Stroke, V8 64-degree, DOHC, 32-valve |
| Horsepower | 250 HP |
| Displacement | 4600 cc (4.6L / 279 CID) |
| Bore x Stroke | 92 mm x 86 mm (3.62 in. x 3.38 in.) |
| Spark Plug (Type & Gap) | NGK LKAR7C-9 |
| Engine Oil Capacity | 7.0 L (7.4 qt) |
| Recommended Engine Oil | Mercury FourStroke Oil 25W-40 (NMMA FC-W SAE 10W-30) |
| Gear Case Oil Capacity | 802 mL (27.1 oz) |
| Idle Speed (in gear) | 600 RPM |
| Full Throttle RPM Range | 5200-6000 |
| 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 250 (3.0L EFI):
- 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 250 (3.0L EFI).
▶Accessories (1 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 0 | 858915A1 | TRIM REDUCER KIT |
▶Attenuator/Flywheel Cover (14 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 892854T01 | COVER, Flywheel |
| 2 | 25-13467 | GROMMET, (.88 Inside Diameter) |
| 3 | 25-8M0153609 | GROMMET |
| 4 | 19-89219001 | PLUG |
| 5 | 881909T3 | ATTENUATOR ASSEMBLY |
| 6 | 23-856954 | BUSHING |
| 7 | 25-8M0190980 | GROMMET |
| 8 | 882767 | SEAL |
| 9 | 25-20116 | GROMMET |
| 10 | 54-23567 | CLIP |
| 11 | 12-65567 | WASHER, (.265 x .750 x .048) Stainless Steel |
| 12 | 10-82130025 | SCREW, (M6 x 25) |
| 13 | 37-881865 | DECAL, Caution-Start in Gear |
| 14 | 10-69570 | SCREW, (#10-16 x .750) |
▶Bottom Cowl (24 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 100-8M0107324 | BOTTOM COWL, Port |
| 2 | 854367001 | PLUG |
| 3 | 100-8M0107323 | BOTTOM COWL, Starboard |
| 4 | 27-889246A97 | GASKET KIT |
| 5 | 10-82130040 | SCREW, (M6 x 40) |
| 6 | 10-824868 | SCREW, (M6 x 75) |
| 7 | 12-8M0204649 | WASHER, (.281 x .500 x .060) Stainless Steel |
| 8 | 8M0053903 | FRONT HANDLE |
| 9 | 23-335891 | BUSHING |
| 10 | 25-48462 | O-RING, (.614 x .070) |
| 11 | 8219423 | PAWL |
| 12 | 12-69057 | WASHER, (.281 x .734 x .063) |
| 13 | 11-401366 | NUT, (M6) Stainless Steel |
| 14 | 10-8214281 | SCREW, (#10-16 x .625) |
| 15 | 54-822873 | CLIP |
| 16 | 87-8M0235191 | SWITCH, Trim |
| 17 | 8M8027677 | RIGGING KIT (Upper) |
| 18 | NSS | NOT SOLD SEPARATE, Clamp-Lower |
| 19 | 10-82130012 | SCREW, (M6 x 12) |
| 20 | NSS | NOT SOLD SEPARATE, Strap |
| 21 | 859343 | FOAM |
| 22 | 54-850181 | TIE STRAP, (11.750 Inches) |
| 23 | 852361T02 | HANDLE |
| 24 | 8M0109218 | SEAL, (44.00 Inches) |
▶Coil Plate (21 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 879346A51 | HARNESS ASSEMBLY, 5 Pin |
| 1 | 850295T2 | PLATE, Coil Mounting |
| 2 | 300-8M0077471 | COIL KIT |
| 3 | 10-82129130 | SCREW, (M6 x 30) |
| 4 | 84-881908T | CABLE SET |
| 5 | 54-828991T | CLIP (Included with Coil Harness) |
| 6 | 33-941 | SPARK PLUG |
| 7 | 84-882757T02 | HARNESS ASSEMBLY, Coil |
| 8 | 84-858414A1 | CABLE ASSEMBLY, Braided |
| 9 | 10-82129110 | SCREW, (M6 x 10) |
| 10 | 12-8M0204649 | WASHER, (.281 x .500 x .060) Stainless Steel |
| 11 | 25-833155 | GROMMET |
| 12 | 12-4002318 | WASHER |
| 13 | 23-8502341 | BUSHING |
| 14 | 10-81893435 | SCREW, (M8 x 35) |
| 15 | 71-8M0157742 | SENSOR KIT, (0-50 PSI) |
| 16 | 22-8M0207782 | FITTING |
| 17 | 54-883066 | CLIP, (.865) |
| 18 | 54-816311T | TIE STRAP, (8.00 Inches) |
| 19 | 32-85978571 | TUBING, (52.00 Inches Bulk) (Cut to 18 Inches) |
| 20 | 12-36001 | WASHER |
▶Crankshaft, Pistons and Connecting Rods (23 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 883894A07 | POWERHEAD ASSEMBLY Comment: (250) |
| 1 | 482-9784A11 | CRANKSHAFT ASSEMBLY |
| 2 | 830882 | WEAR SLEEVE |
| 3 | 30-67923T | BEARING, Ball (Lower) |
| 4 | 53-67446 | RING |
| 5 | 39-843198T01 | RING, Seal |
| 6 | 28-91800 | KEY, Woodruff |
| 7 | 25-35126 | O-RING, (.859 x .139) |
| 8 | 31-88270A02 | BEARING/RACE KIT |
| 9 | NSS | NOT SOLD SEPARATE, Bearing-Center Main |
| 10 | 700-878573A2 | PISTON ASSEMBLY Comment: (Port - .030 oversize) |
| 11 | 40-841202 | RING |
| 12 | 39-858772A12 | RING SET, Piston |
| 13 | NSS | NOT SOLD SEPARATE, Piston Ring-Lower |
| 14 | 600-8M0125869 | CONNECTING ROD ASSEMBLY |
| 15 | 10-94320 | SCREW, (.375-24 x 1.250) |
| 16 | 31-844338A01 | BEARING ASSEMBLY |
| 17 | NSS | NOT SOLD SEPARATE, Needle Roller Bearing |
| 18 | 12-88263 | THRUST WASHER |
| 19 | 29-8M0204715 | BEARING, Needle |
| 20 | 31-816773A2 | BEARING ASSEMBLY (Upper) |
| 21 | 26-859093 | SEAL |
| 22 | 25-823683 | O-RING, (1.989 x .070) |
▶Cyliner Block and End Cap (64 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 883894A07 | POWERHEAD ASSEMBLY Comment: (250) |
| 1 | 885-899162A07 | CYLINDER BLOCK ASSEMBLY Comment: (250) |
| 2 | 10-81893440 | SCREW, (M8 x 40) |
| 3 | 8M0111325 | BRACKET |
| 4 | 16-903509 | STUD, (M10 x 1.5 x 64) |
| 5 | 16-8154431 | STUD, (M10 x 1.5 x 155) |
| 6 | 8248577 | DEFLECTOR |
| 7 | 21-8781051 | CHECK VALVE |
| 8 | 17-8M0036405 | PIN |
| 9 | 17-43044 | PIN, Dowel - Without Hole (.375 x .625) |
| 10 | 10-82446180 | SCREW, (M10 x 80) |
| 11 | 10-81893435 | SCREW, (M8 x 35) |
| 12 | 10-81893420 | SCREW, (M8 x 20) |
| 13 | 17-63779 | PIN, Dowel (.250 x .625) |
| 14 | 13536A13 | SENSOR ASSEMBLY, Temperature |
| 15 | 17-8405101 | PIN |
| 16 | 8588641 | RETAINER |
| 17 | 12-8M0214963 | WASHER, (.406 x .750 x .105) Stainless Steel |
| 18 | 11-4013610 | NUT, (M10) Stainless Steel |
| 19 | 8M0082988 | SENSOR |
| 20 | 10-40011107 | SCREW, (M5 x 16) Stainless Steel |
| 21 | 1171-9787A4 | END CAP ASSEMBLY |
| 22 | 25-62700 | O-RING, (3.237 x .103) |
| 23 | 26-8308981 | SEAL |
| 24 | 10-82130020 | SCREW, (M6 x 20) |
| 25 | 857186T02 | PLATE ASSEMBLY |
| 26 | 23-855729 | MOUNT |
| 27 | 10-82130145 | SCREW, (M10 x 45) |
| 28 | 10-82494810 | SCREW, (M6 x 10) |
| 29 | 25-19565002 | GROMMET |
| 30 | 12-855725 | WASHER |
| 31 | 137151 | RETAINER |
| 32 | 54-858951 | J CLIP |
| 33 | 10-82130012 | SCREW, (M6 x 12) |
| 34 | 818574 | SEAL |
| 35 | 812851A27 | CYLINDER HEAD ASSEMBLY |
| 36 | 884391 | SEAL |
| 37 | 8M0057307 | THERMOSTAT, 54 Degree C/130 Degree F |
| 38 | 27-8503181 | GASKET |
| 39 | 8M0039357 | COVER, Thermostat |
| 40 | 10-82130025 | SCREW, (M6 x 25) |
| 41 | 10-8M0045380 | SCREW, (M8 x 50) |
| 42 | 8M0148668 | SENSOR ASSEMBLY |
| 43 | 25-896699 | O-RING, (1.78 mm x .08 mm) |
| 44 | 10-81893414 | SCREW, (M8 x 14) |
| 45 | 22-782792 | FITTING, Elbow 45 Degree (1.25) |
| 46 | 8583561 | LEVER, TPI |
| 47 | 10-82130025 | SCREW, (M6 x 25) |
| 48 | 23-856954 | BUSHING |
| 49 | 25-8M0190980 | GROMMET |
| 50 | 12-65567 | WASHER, (.265 x .750 x .048) Stainless Steel |
| 51 | 10-40011113 | SCREW, (M5 x 45) Stainless Steel |
| 52 | 8M6005165 | INDICATOR, Throttle Position |
| 53 | 8M0084743 | LINK |
| 54 | 54-858902 | CLAMP |
| 55 | 8582261 | COVER |
| 56 | 8544862 | BRACKET |
| 57 | 54-855228 | CLAMP, (25.6 mm) |
| 58 | 22-8533394 | FITTING |
| 59 | 32-8404461 | HOSE (Starboard) |
| 60 | 32-8404462 | HOSE (Port) |
| 61 | 8M6003194 | SENSOR ASSEMBLY, Knock Comment: (200) |
| 62 | 16-882781 | STUD Comment: (200) |
| 63 | 11-826292 | NUT, (M10) Brass/Nickel Plated Comment: (200) |
▶Deck Oil Fill Kit, 15969A3 or 15969A5 (9 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 15969A3 | DECK FILL KIT, Oil, With Hose |
| 2 | 15969A13 | DECK FILL KIT, Oil, With Out Hose |
| 3 | 15966 | PLATE |
| 4 | 15969A08 | DECK PLATE ASSEMBLY |
| 5 | 10-16324 | SCREW, (#8 x .625) |
| 6 | 54-815504228 | CLAMP, Worm Gear |
| 7 | 15967 | ADAPTOR, Oil Filler |
| 8 | 25-11332 | O-RING, (2.225 x .210) |
| 9 | 32-850719 | HOSE, (100.00 Feet Bulk) , Oil Filler - Cut as Required |
▶Driveshaft Housing and Exhaust Tube (38 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 3519-832938A06 | HOUSING ASSEMBLY, Driveshaft - X/XX-Long |
| 2 | 16-8M0008031 | STUD, (M12 x 52) Comment: Long/X-Long |
| 3 | 10-857136 | SCREW, (M12 x 35 MM) Comment: Long/X-Long |
| 4 | 25-8331231 | GROMMET |
| 5 | 12-856982 | WASHER, (.500 x .810 x .090) Stainless Steel |
| 6 | 11-896895 | NUT, (M12) |
| 7 | 19-64649 | PLUG |
| 8 | 10-898834 | BOLT, (M14 x 178) |
| 9 | 88238A10 | CABLE ASSEMBLY, Ground |
| 10 | 12-815432 | WASHER, (.562 x 2.00 x .125) |
| 11 | 12-8154331 | WASHER, (1.25 x 2.00 x .19) |
| 12 | 8137711 | MOUNT |
| 13 | 12-825190 | WASHER |
| 14 | 11-896602 | NUT, (M14) |
| 15 | 8186442 | CLAMP, When Depleted Order Design II Kit 879150A90 Comment: Design I SN# 1B775625 & Below |
| 16 | 10-81893435 | SCREW, (M8 x 35) |
| 17 | 13-72521 | LOCKWASHER, Internal Tooth |
| 18 | 8M0001136 | COVER, Lower Mount, When Depleted Order Design II Kit 879150A90 Comment: Design I SN# 1B775625 & Below |
| 19 | 10-69079 | SCREW, (#10-16 x .440) Comment: Design I |
| 20 | 8329321 | SEAL |
| 21 | 833116A19 | TUBE ASSEMBLY, Exhaust |
| 22 | 35-8M0026113 | STRAINER |
| 23 | 10-81893435 | SCREW, (M8 x 35) |
| 24 | 32-8M0042787 | TUBE, Water Comment: XX-Long |
| 25 | 832940001 | SEAL |
| 26 | 8329391 | CLAMP |
| 27 | 10-41508 | SCREW, (.250-20 x .500) Stainless Steel |
| 28 | 8M0105088 | SPACER Comment: XX-Long |
| 29 | 17-43044 | PIN, Dowel - Without Hole (.375 x .625) Comment: XX-Long |
| 30 | 16-8M0008047 | STUD, (M12 x 179) Comment: XX-Long |
| 31 | 10-857137 | SCREW, (M12 x 160) Comment: XX-Long |
| 32 | 10-81893435 | SCREW, (M8 x 35) |
| 33 | 879150A90 | COVER KIT, Lower Mount Comment: Design II SN# 1B775625 & Below |
| 34 | 100-8M0148785 | COVER, Lower Mount Comment: Design II SN# 1B775626 & Up |
| 35 | 100-8M4501003 | CLAMP Comment: Design II SN# 1B775626 & Up |
| 36 | 10-69079 | SCREW, (#10-16 x .440) Comment: Design II SN# 1B775626 & Up |
| 37 | 12-847541 | WASHER |
| 38 | 12-856982 | WASHER, (.500 x .810 x .090) Stainless Steel |
▶Dual Engine Tie Bar Kit (21 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 92876A9 | EXTENSION KIT, Dual Engine |
| 1 | 71565A2 | TUBE ASSEMBLY |
| 2 | 25-48462 | O-RING, (.614 x .070) |
| 3 | 41055 | MOUNT |
| 4 | 14-42100 | TAB WASHER |
| 5 | 11-8M0041651 | NUT, (.875-14) |
| 6 | 88404 | TAB WASHER |
| 7 | 10-38601 | SCREW, (.250-28 x 1.250) |
| 8 | 17729A1 | BRACKET |
| 9 | 10-62055 | SCREW, (.312-24 x 1.250) |
| 10 | 17728 | TAB WASHER |
| 11 | 10-140001 | SCREW, (.375-24 x 1.38) |
| 12 | 11-8M0204726 | NUT, (.375-24) Stainless Steel |
| 13 | 8M0026167 | STEERING EYE |
| 14 | 23-23651 | SLEEVE, (1.625) |
| 15 | 97931 | TUBING, (4.00 Inches) |
| 16 | 8M0026098 | COUPLER, 15 In. |
| 17 | 11-42099 | NUT, (.562-18) |
| 18 | 22-821169 | COUPLING |
| 19 | 12-37828 | WASHER, (.390 x .625 x .062) Stainless Steel |
| 20 | 10-94319 | SCREW, (.375-24 x 1.5) |
▶Exhaust Plate (40 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 883894A07 | POWERHEAD ASSEMBLY Comment: (250) |
| 1 | 832935A17 | PLATE ASSEMBLY, Exhaust |
| 2 | 27-832933006 | GASKET |
| 3 | 27-832934006 | GASKET (Lower) |
| 4 | 8M0043157 | SEAL |
| 5 | 22-8320761 | FITTING, Check Valve |
| 6 | 22-8M0180565 | PLUG, Pipe (.375-18) Brass |
| 7 | 21-817519A1 | CHECK VALVE ASSEMBLY, Drain |
| 8 | 17-43044 | PIN, Dowel - Without Hole (.375 x .625) |
| 9 | 25-822002 | GROMMET |
| 10 | 19-48323 | PLUG |
| 11 | 65663A2 | COVER ASSEMBLY |
| 12 | 10-81893435 | SCREW, (M8 x 35) |
| 13 | 814190 | CARRIER |
| 14 | 25-814191 | GROMMET |
| 15 | 814189 | POPPET |
| 16 | 24-64878 | SPRING, (Black) |
| 17 | 65664A1 | PLATE ASSEMBLY |
| 18 | 27-88907003 | GASKET |
| 19 | 648771 | DIAPHRAGM |
| 20 | 12-76451 | WASHER |
| 21 | 10-69570 | SCREW, (#10-16 x .750) |
| 22 | 10-81893435 | SCREW, (M8 x 35) |
| 23 | 850306A04 | BOOT KIT, Idle Exhaust Comment: Includes references 44 and 45 |
| 24 | 54-850896 | CLAMP, (28.6) |
| 25 | 22-8M0077650 | FITTING, Tell-Tale |
| 26 | 19-821908 | PLUG |
| 27 | 12-821915 | WASHER |
| 28 | 22-8596001 | FITTING |
| 29 | 8219631 | CHECK VALVE |
| 30 | 25-30641 | O-RING, (.299 x .103) |
| 31 | 23-48237 | BUSHING |
| 32 | 43585 | COUPLING Comment: Design I |
| 33 | 22-858855 | FITTING, Straight |
| 34 | 25-12602002 | GROMMET |
| 35 | 32-8M0108355 | HOSE, (57.00 Inches Bulk) (Cut to 3 Inches) |
| 36 | 32-859626A1 | FLUSH HOSE KIT (Inlet) |
| 37 | 888910 | PLATE |
| 38 | 10-82239312 | SCREW, (M5 x 12) |
| 39 | 8M0027417 | COUPLER, Shift Shaft Comment: Design II |
▶Flywheel/Alternator (19 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 8M6013461 | ALTERNATOR |
| 2 | 24-8523742 | SPRING |
| 3 | 856815T2 | ARM TENSIONER ASSEMBLY |
| 4 | 12-4002320 | WASHER |
| 5 | 23-8568941 | BUSHING |
| 6 | 16-8M0034457 | STUD, (M10 x 85) |
| 7 | 11-826292 | NUT, (M10) Brass/Nickel Plated |
| 8 | 8M6005030 | PULLEY ASSEMBLY |
| 9 | 10-4010835 | SCREW, (M10 x 35) Hex Flange - Stainless Steel |
| 10 | 57-828507Q11 | BELT |
| 11 | 283-859619T1 | FLYWHEEL |
| 12 | 11-42979 | NUT, (M16) |
| 13 | 12-33001 | WASHER, (.641 x 1.250 x .190) |
| 14 | 19-45907 | PLUG, Yellow |
| 15 | 11-401386 | NUT, (M6) Stainless Steel |
| 16 | 84-856583A5 | CABLE ASSEMBLY |
| 17 | 12-4002319 | WASHER |
| 18 | 10-82130150 | SCREW, (M10 x 50) |
| 19 | 10-82130012 | SCREW, (M6 x 12) |
▶Fuel Line Assembly (8 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 32-8M0044837 | HOSE ASSEMBLY, Fuel (12 Feet) Mercury Branded Comment: (2009 and Up) |
| 2 | 32-8M0038500 | HOSE, (100.00 Feet Bulk) Comment: (2009 and Up) |
| 3 | 13330Q07 | BULB ASSEMBLY, Primer (Yellow Washer) |
| 4 | 21-13331A3 | CHECK VALVE ASSEMBLY, Inlet |
| 5 | 21-13331A4 | CHECK VALVE ASSEMBLY, Outlet |
| 6 | 54-4158210 | CLAMP, Nylon, Large |
| 7 | 54-41582Q7 | CLAMP, Nylon, Small |
| 8 | 54-815504104 | CLAMP, Worm Gear |
▶Fuel Management (57 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 883894A07 | POWERHEAD ASSEMBLY Comment: (250) |
| 1 | 883951T1 | ADAPTOR PLATE |
| 2 | 27-804680 | GASKET |
| 3 | 828623T4 | REED BLOCK |
| 4 | 10-8555252 | SCREW, (M6) |
| 5 | 23-855364 | BUSHING |
| 6 | 25-855362001 | GROMMET |
| 7 | 10-81893435 | SCREW, (M8 x 35) |
| 8 | 12-817274 | WASHER, (.344 x 1.00 x .063) Stainless Steel |
| 9 | 10-81893430 | SCREW, (M8 x 30) |
| 10 | 883950T1 | PLENUM KIT, Air |
| 11 | 27-804679004 | GASKET |
| 12 | 10-1993716 | SCREW, (M6 x 16) |
| 13 | 884522 | BRACKET, MAP Sensor |
| 14 | 854445 | SENSOR, MAP |
| 15 | 8M0148668 | SENSOR ASSEMBLY |
| 16 | 25-896699 | O-RING, (1.78 mm x .08 mm) |
| 17 | 883949T1 | THROTTLE BODY KIT |
| 18 | 10-82130040 | SCREW, (M6 x 40) |
| 19 | 25-855426 | O-RING |
| 20 | 858851A03 | LEVER ASSEMBLY, Throttle |
| 21 | 8M0072162 | ROLLER |
| 22 | 12-8M0204666 | WASHER, (.203 x .500 x .032) |
| 23 | 8-32,11-826709104 | NUT, Stainless Steel |
| 24 | 10-889354 | SCREW, Special |
| 25 | 12-881991 | WASHER, Cupped |
| 26 | 12-881992 | WASHER, Spool |
| 27 | 10,13-69432 | LOCKWASHER, External |
| 28 | 858353A08 | CAM ASSEMBLY |
| 29 | 8235694 | BALL, Threaded |
| 30 | 23-8M0215006 | BUSHING |
| 31 | 23-8807371 | BUSHING |
| 32 | 10-40011155 | SCREW, (M8 x 55) Stainless Steel |
| 33 | 12-56720 | WASHER, (.330 x .750 x .060) Stainless Steel |
| 34 | 22-993211 | FITTING |
| 35 | 8M0185615 | PUMP ASSEMBLY, Oil |
| 36 | 883926 | BRACKET |
| 37 | 10-883942 | SCREW, (M4 x 16) |
| 38 | 10-82130025 | SCREW, (M6 x 25) |
| 39 | 12-8M0214930 | WASHER |
| 40 | 25-8M0190980 | GROMMET |
| 41 | 23-822003 | BUSHING |
| 42 | 883952T1 | FUEL RAIL |
| 43 | 8833821 | RETAINER |
| 44 | 10-840118 | SCREW, (#8-32 x .380) |
| 45 | 840481T01 | INJECTOR ASSEMBLY |
| 46 | 25-895239A01 | O-RING KIT |
| 47 | 8832151 | TUBE |
| 48 | 25-883355 | O-RING |
| 49 | 22-883940 | FITTING |
| 50 | 10-883376 | SCREW, (#10-24 x .375) |
| 51 | 883382 | RETAINER |
| 52 | 25-20385 | O-RING, (.239 x .070) |
| 53 | 84-880745T1 | HARNESS ASSEMBLY, Fuel Rail |
| 54 | 54-883941 | CLAMP |
| 55 | 54-8M0024808 | J CLIP (Use where Applicable) |
| 56 | 10-82130040 | SCREW, (M6 x 40) |
▶Fuel Pump (33 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 883894A07 | POWERHEAD ASSEMBLY Comment: (250) |
| 1 | NSS | NOT SOLD SEPARATE, Fuel Pump |
| 2 | NSS | NOT SOLD SEPARATE, Disc Check Valve |
| 3 | NSS | NOT SOLD SEPARATE, Diaphragm |
| 4 | NSS | NOT SOLD SEPARATE, Retainer |
| 5 | NSS | NOT SOLD SEPARATE, Spring |
| 6 | NSS | NOT SOLD SEPARATE, Cap |
| 7 | NSS | NOT SOLD SEPARATE, Spring |
| 8 | NSS | NOT SOLD SEPARATE, Cap |
| 9 | NSS | NOT SOLD SEPARATE, Diaphragm |
| 10 | NSS | NOT SOLD SEPARATE, Gasket-Boost |
| 11 | NSS | NOT SOLD SEPARATE, Gasket-Pulse |
| 12 | 27-8M0204705 | GASKET |
| 13 | 987752 | PLATE |
| 14 | 22-16604 | FITTING, Straight (.125-27) |
| 15 | 10-82104540 | SCREW, (M5 x 40), Fuel Pump |
| 16 | 10-82130050 | SCREW, (M6 x 50), Pump to Crankcase |
| 17 | 144303 | BASE |
| 18 | 22-856842 | ELBOW, To Crankcase |
| 19 | 54-816311T | TIE STRAP, (8.00 Inches) |
| 20 | 32-8M0064783 | HOSE, Pulse Line |
| 21 | 22-822769 | CONNECTOR |
| 22 | 32-8M0064778 | HOSE |
| 23 | NSS | NOT SOLD SEPARATE, Cap |
| 24 | 32-8M0064780 | HOSE/SLEEVE |
| 25 | 32-8M0108355 | HOSE, (57.00 Inches Bulk) (Cut to 16 Inches) |
| 26 | 22-858955 | CONNECTOR |
| 27 | 54-8M0214964 | CLAMP, Hose (15.3) |
| 28 | 32-8839461 | HOSE |
| 29 | 32-8M0054213 | HOSE, (40.00 Inches Bulk) (Cut to 15 Inches) To Elbow on Plenum |
| 30 | 32-8M0054213 | HOSE, (40.00 Inches Bulk) (Cut to 28 Inches) To Oil Pump |
| 31 | 54-816311T | TIE STRAP, (8.00 Inches) |
| 32 | 32-883965 | CONDUIT |
▶Gear Housing, Driveshaft-Standard/Counter Rotation (54 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 817275A08 | REPAIR KIT, Water Pump-Upper |
| 1 | 1600-8M0056631 | GEAR HOUSING ASSEMBLY, Basic, Used With 1/4 Inch Shift Crank Comment: SN# 1B853028 & Up |
| 2 | 8M0010459 | FILLER BLOCK Comment: SN# 1B537640 & Up |
| 3 | 17-43044 | PIN, Dowel - Without Hole (.375 x .625) |
| 4 | 97-826134Q | ANODE |
| 5 | 10-4000333 | SCREW, (M6 x 40) |
| 6 | 11-401386 | NUT, (M6) Stainless Steel |
| 7 | 10-79953A04 | PLUG ASSEMBLY, (.375-16 x .250) |
| 8 | 26-8M0204693 | SEAL |
| 9 | 97-76214Q5 | ANODE KIT Comment: Quicksilver |
| 10 | 10-8M0204686 | SCREW, (.437-14 x 1.750) |
| 11 | 8M0047129 | COVER ASSEMBLY Comment: Design-II |
| 12 | 22-881866 | FITTING Comment: Design-I and II |
| 13 | 25-896522 | O-RING, (799 x .103) Comment: Design-I and II |
| 14 | 26-8M0204708 | SEAL, Oil Comment: Design-I and II |
| 15 | 53-8M0046563 | RETAINING RING Comment: Design-II |
| 16 | 10-8M0204741 | SCREW, (M6 x 20) Stainless Steel |
| 17 | 12-77674 | WASHER |
| 18 | 27-880729 | GASKET |
| 19 | 824145 | SHIFT SHAFT |
| 20 | NSS | NOT SOLD SEPARATE, Pinion Gear Comment: Part of 43-892595A04 or 43-880720A03 |
| 21 | 11-35921 | NUT, (.625-18) |
| 22 | 12-92721 | WASHER |
| 23 | 31-42647A1 | BEARING ASSEMBLY, Roller |
| 24 | 45-895081T | DRIVESHAFT, XX-Long |
| 25 | 28-8M0204723 | KEY, Also a Component of Water Pump Housing |
| 26 | 15-884327A02 | SHIM/BEARING ASSEMBLY Comment: SN# 1B792549 & Below |
| 27 | 15-8M0063268 | SHIM ASSEMBLY |
| 28 | NSS | NOT SOLD SEPARATE, Roller Bearing Assembly Comment: SN# 1B792549 & Below |
| 29 | NSS | NOT SOLD SEPARATE, Cup Comment: SN# 1B792549 & Below |
| 30 | NSS | NOT SOLD SEPARATE, Roller Bearing Assembly Comment: SN# 1B792549 & Below |
| 31 | NSS | NOT SOLD SEPARATE, Cup Comment: SN# 1B792549 & Below |
| 32 | 8245191 | RETAINER |
| 33 | 817275A09 | HOUSING, Water Pump-Complete |
| 34 | 26-861415A1 | SEAL KIT |
| 35 | 10-8M0204741 | SCREW, (M6 x 20) Stainless Steel |
| 36 | 47-43026T2 | IMPELLER |
| 37 | 8M0204709 | FACEPLATE |
| 38 | 53-880719 | RING, Retaining |
| 39 | 8M0007131 | CARRIER ASSEMBLY, Oil Seal |
| 40 | 25-8M0142854 | O-RING, (2.175 x .103) |
| 41 | NSS | NOT SOLD SEPARATE, Oil Seal |
| 42 | NSS | NOT SOLD SEPARATE, Oil Seal |
| 43 | 27-8172771 | GASKET |
| 44 | 27-430331 | GASKET |
| 45 | 832942A1 | COUPLING ASSEMBLY |
| 46 | 25-8M0204654 | O-RING, (1.046) |
| 47 | 25-8M0204645 | O-RING, (.796 x .139) |
| 48 | 43585 | COUPLING |
| 49 | 31-8M0146566 | BEARING ASSEMBLY, Roller/Cup Comment: SN# 1B792550 & Up |
| 50 | NSS | NOT SOLD SEPARATE, CUP Comment: SN# 1B792550 & Up |
| 51 | 15-8M0053110 | SHIM SET Comment: SN# 1B792550 & Up |
| 52 | 31-8M0146553 | BEARING, Tapered Roller Comment: SN# 1B792550 & Up |
| 53 | NSS | NOT SOLD SEPARATE, CUP Comment: SN# 1B792550 & Up |
▶Gear Housing, Prop Shaft - Std Rotation 2B014225 & below (36 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 26-830749A01 | SEAL KIT, Gear Housing |
| 1 | 1600-8M0056631 | GEAR HOUSING ASSEMBLY, Basic, Used With 1/4 Inch Shift Crank Comment: SN# 1B853028 & Up |
| 2 | NSS | NOT SOLD SEPARATE, Plug |
| 3 | 8M0220880 | CRANK, Shifter, 1/4 Pivot Pin Comment: SN# 1B853028 & Up |
| 4 | 8M0235940 | SPOOL ASSEMBLY |
| 5 | NSS | NOT SOLD SEPARATE, Spool |
| 6 | 18-469501 | COTTER PIN |
| 7 | NSS | NOT SOLD SEPARATE, Sleeve Adjusting |
| 8 | 43-892595A04 | GEAR SET, Forward/Pinion |
| 9 | 15-884328A01 | SHIM SET |
| 10 | 31-8M0142836 | BEARING ASSEMBLY, Roller |
| 11 | NSS | NOT SOLD SEPARATE, Cup |
| 12 | 53-8M0051043 | RING, Retaining |
| 13 | 12-8M0053823 | THRUST WASHER |
| 14 | 31-8M0142835 | BEARING ASSEMBLY, Roller-Tappered |
| 15 | NSS | NOT SOLD SEPARATE, Cup |
| 16 | 52-880714T01 | CLUTCH |
| 17 | 24-30893 | SPRING |
| 18 | 17-828356 | PIN, Detent |
| 19 | 44-888530 | PROPELLER SHAFT |
| 20 | 17-8M0100263 | PIN, Cross |
| 21 | 43-8M0118363 | GEAR, Reverse |
| 22 | 880699 | THRUST RING |
| 23 | 23-891919001 | SPACER, Thrust |
| 24 | 880696A08 | CARRIER ASSEMBLY, Bearing |
| 25 | 15-891936A01 | SHIM SET |
| 26 | 30-8M0142873 | BEARING, Ball |
| 27 | 26-8M0204700 | SEAL, Oil |
| 28 | 31-8M0148319 | BEARING ASSEMBLY, Tapered |
| 29 | NSS | NOT SOLD SEPARATE, Cup |
| 30 | 26-8M0204700 | SEAL, Oil |
| 31 | 25-8M0142840 | O-RING, (3.850 x .210) |
| 32 | 10-880717A01 | SCREW/SEAL KIT |
| 33 | 26-8M0204693 | SEAL |
| 34 | 14-880697 | KEYED WASHER |
| 35 | 8M2011027 | RETAINER |
▶Gear Housing, Prop Shaft - Std Rotation 2B014226 & up (36 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 26-830749A01 | SEAL KIT, Gear Housing |
| 1 | 1600-8M0056631 | GEAR HOUSING ASSEMBLY, Basic, Used With 1/4 Inch Shift Crank Comment: SN# 1B853028 & Up |
| 2 | NSS | NOT SOLD SEPARATE, Plug |
| 3 | 8M0220880 | CRANK, Shifter, 1/4 Pivot Pin Comment: SN# 1B853028 & Up |
| 4 | 8M0235940 | SPOOL ASSEMBLY |
| 5 | NSS | NOT SOLD SEPARATE, Spool |
| 6 | 18-469501 | COTTER PIN |
| 7 | NSS | NOT SOLD SEPARATE, Sleeve Adjusting |
| 8 | 43-892595A04 | GEAR SET, Forward/Pinion |
| 9 | 15-884328A01 | SHIM SET |
| 10 | 31-8M0142836 | BEARING ASSEMBLY, Roller |
| 11 | NSS | NOT SOLD SEPARATE, Cup |
| 12 | 53-8M0051043 | RING, Retaining |
| 13 | 12-8M0053823 | THRUST WASHER |
| 14 | 31-8M0142835 | BEARING ASSEMBLY, Roller-Tappered |
| 15 | NSS | NOT SOLD SEPARATE, Cup |
| 16 | 52-880714T01 | CLUTCH |
| 17 | 24-30893 | SPRING |
| 18 | 17-828356 | PIN, Detent |
| 19 | 44-8M0140446 | PROPELLER SHAFT |
| 20 | 17-8M0100263 | PIN, Cross |
| 21 | 43-8M0118363 | GEAR, Reverse |
| 22 | 880699 | THRUST RING |
| 23 | 23-8M0064306 | SPACER |
| 24 | 12-8M0050439 | WASHER, .050 |
| 25 | 8M0083392 | CARRIER ASSEMBLY, Bearing |
| 26 | 30-8M0142873 | BEARING, Ball |
| 27 | 26-8M0204700 | SEAL, Oil |
| 28 | 31-8M0148319 | BEARING ASSEMBLY, Tapered |
| 29 | NSS | NOT SOLD SEPARATE, Cup |
| 30 | 26-8M0204700 | SEAL, Oil |
| 31 | 25-8M0142840 | O-RING, (3.850 x .210) |
| 32 | 10-880717A01 | SCREW/SEAL KIT |
| 33 | 26-8M0204693 | SEAL |
| 34 | 14-880697 | KEYED WASHER |
| 35 | 8M2011027 | RETAINER |
▶Gear Housing, Prop Shaft-Counter Rotation 2B014225 & below (41 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 26-830749A01 | SEAL KIT, Gear Housing |
| 1 | 1600-8M0056631 | GEAR HOUSING ASSEMBLY, Basic, Used With 1/4 Inch Shift Crank Comment: SN# 1B853028 & Up |
| 2 | NSS | NOT SOLD SEPARATE, Plug |
| 3 | 8M0220880 | CRANK, Shifter, 1/4 Pivot Pin Comment: SN# 1B853028 & Up |
| 4 | 8M0235940 | SPOOL ASSEMBLY |
| 5 | NSS | NOT SOLD SEPARATE, Spool |
| 6 | 18-469501 | COTTER PIN |
| 7 | NSS | NOT SOLD SEPARATE, Sleeve Adjusting |
| 8 | 43-880723A02 | GEAR, Reverse |
| 9 | 31-8M0142836 | BEARING ASSEMBLY, Roller |
| 10 | NSS | NOT SOLD SEPARATE, Cup |
| 11 | 53-8M0051043 | RING, Retaining |
| 12 | 12-8M0053823 | THRUST WASHER |
| 13 | 31-8M0142835 | BEARING ASSEMBLY, Roller-Tappered |
| 14 | NSS | NOT SOLD SEPARATE, Cup |
| 15 | 15-884328A01 | SHIM SET |
| 16 | 24-30893 | SPRING |
| 17 | 52-880714T01 | CLUTCH |
| 18 | 17-8M0100263 | PIN, Cross |
| 19 | 17-828356 | PIN, Detent |
| 20 | 44-888530 | PROPELLER SHAFT |
| 21 | 43-8M0119539 | GEAR KIT, Forward/Pinion |
| 22 | 880699 | THRUST RING |
| 23 | 31-815480 | BEARING, Thrust |
| 24 | 880696A10 | CARRIER ASSEMBLY, Bearing |
| 25 | 25-8M0142840 | O-RING, (3.850 x .210) |
| 26 | 31-814653T | BEARING ASSEMBLY, Needle Rollers |
| 27 | 8M0148384 | ADAPTOR, Bearing |
| 28 | 15-47397A1 | SHIM SET |
| 29 | 15-891936A01 | SHIM SET |
| 30 | 31-8M0148319 | BEARING ASSEMBLY, Tapered |
| 31 | NSS | NOT SOLD SEPARATE, Cup |
| 32 | 26-8M0204700 | SEAL, Oil |
| 33 | 26-8M0204700 | SEAL, Oil |
| 34 | 10-880717A01 | SCREW/SEAL KIT |
| 35 | 26-8M0204693 | SEAL |
| 36 | 8M0053183 | ADAPTOR |
| 37 | 23-891919001 | SPACER, Thrust |
| 38 | 14-880697 | KEYED WASHER |
| 39 | 8M2011027 | RETAINER |
| 40 | NSS | NOT SOLD SEPARATE, Decal-Counter Rotation |
▶Gear Housing, Prop Shaft-Counter Rotation 2B014226 & up (41 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 26-830749A01 | SEAL KIT, Gear Housing |
| 1 | 1600-8M0056631 | GEAR HOUSING ASSEMBLY, Basic, Used With 1/4 Inch Shift Crank Comment: SN# 1B853028 & Up |
| 2 | NSS | NOT SOLD SEPARATE, Plug |
| 3 | 8M0220880 | CRANK, Shifter, 1/4 Pivot Pin Comment: SN# 1B853028 & Up |
| 4 | 8M0235940 | SPOOL ASSEMBLY |
| 5 | NSS | NOT SOLD SEPARATE, Spool |
| 6 | 18-469501 | COTTER PIN |
| 7 | NSS | NOT SOLD SEPARATE, Sleeve Adjusting |
| 8 | 43-880723A02 | GEAR, Reverse |
| 9 | 31-8M0142836 | BEARING ASSEMBLY, Roller |
| 10 | NSS | NOT SOLD SEPARATE, Cup |
| 11 | 53-8M0051043 | RING, Retaining |
| 12 | 12-8M0053823 | THRUST WASHER |
| 13 | 31-8M0142835 | BEARING ASSEMBLY, Roller-Tappered |
| 14 | NSS | NOT SOLD SEPARATE, Cup |
| 15 | 15-884328A01 | SHIM SET |
| 16 | 24-30893 | SPRING |
| 17 | 52-880714T01 | CLUTCH |
| 18 | 17-8M0100263 | PIN, Cross |
| 19 | 17-828356 | PIN, Detent |
| 20 | 44-8M0140446 | PROPELLER SHAFT |
| 21 | 43-8M0119539 | GEAR KIT, Forward/Pinion |
| 22 | 880699 | THRUST RING |
| 23 | 31-815480 | BEARING, Thrust |
| 24 | 12-8M0050439 | WASHER, .050 |
| 25 | 8M0083392 | CARRIER ASSEMBLY, Bearing |
| 26 | 25-8M0142840 | O-RING, (3.850 x .210) |
| 27 | 31-814653T | BEARING ASSEMBLY, Needle Rollers |
| 28 | 8M0148384 | ADAPTOR, Bearing |
| 29 | 15-47397A1 | SHIM SET |
| 30 | 31-8M0148319 | BEARING ASSEMBLY, Tapered |
| 31 | NSS | NOT SOLD SEPARATE, Cup |
| 32 | 26-8M0204700 | SEAL, Oil |
| 33 | 26-8M0204700 | SEAL, Oil |
| 34 | 10-880717A01 | SCREW/SEAL KIT |
| 35 | 26-8M0204693 | SEAL |
| 36 | 8M0053183 | ADAPTOR |
| 37 | 23-8M0064306 | SPACER |
| 38 | 14-880697 | KEYED WASHER |
| 39 | 8M2011027 | RETAINER |
| 40 | NSS | NOT SOLD SEPARATE, Decal-Counter Rotation |
▶Mercathode Kit (15 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 88334A2 | MERCATHODE KIT |
| 2 | 88334A4 | MERCATHODE ASSEMBLY |
| 3 | 10-22793 | SCREW, (#9-14 x .875) |
| 4 | 12-30164 | WASHER, (.192 x .375 x .0312) Stainless Steel |
| 5 | 10-32,11-45076 | NUT, Brass |
| 6 | 72958A5 | ELECTRODE ASSEMBLY |
| 7 | 25-8M0204645 | O-RING, (.796 x .139) |
| 8 | 10-87698 | SCREW, (#10-16 x 1.250) Stainless Steel |
| 9 | 97-72957A5 | ANODE ASSEMBLY |
| 10 | 25-8M0204645 | O-RING, (.796 x .139) |
| 11 | 10-87698 | SCREW, (#10-16 x 1.250) Stainless Steel |
| 12 | 88-8M0207796 | FUSE, 20 Ampere |
| 13 | 84-95084A10 | CABLE ASSEMBLY, (5.00 Inches) Red |
| 14 | 84-95084A13 | CABLE ASSEMBLY, (64.00 Inches) |
| 15 | 84-79138A8 | CABLE ASSEMBLY, (72.00 Inches) Black |
▶Oil Injection Components (20 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 1200-8M0119508 | TANK ASSEMBLY, Oil |
| 2 | NSS | NOT SOLD SEPARATE, Decal-Reservoir |
| 3 | 10-58376 | SCREW, (.164-18 x .375) |
| 4 | 12-72761 | WASHER, (.203 x .562 x .060) Stainless Steel |
| 5 | 36-814449A3 | CAP ASSEMBLY |
| 6 | 27-42999T | GASKET |
| 7 | 87-856156T02 | SWITCH ASSEMBLY |
| 8 | 10-81893435 | SCREW, (M8 x 35) |
| 9 | 12-4002318 | WASHER |
| 10 | 25-855362001 | GROMMET |
| 11 | 23-855364 | BUSHING |
| 12 | 32-8M0108355 | HOSE, (57.00 Inches Bulk) (Cut to 7 Inches) |
| 13 | 54-816311T | TIE STRAP, (8.00 Inches) |
| 14 | 22-8M0207780 | FITTING |
| 15 | 32-875283 | HOSE, (2.00 Inches) |
| 16 | 35-875284T01 | FILTER, Oil - In Line |
| 17 | 32-875289 | HOSE |
| 18 | 22-858955 | CONNECTOR |
| 19 | NSS | NOT SOLD SEPARATE, Plug |
| 20 | 32-892830053 | HOSE, (24.00 Inches Braided) (Cut to 22 Inches) |
▶Port Bleed System (16 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 883894A07 | POWERHEAD ASSEMBLY Comment: (250) |
| 1 | 21-8282182 | CHECK VALVE |
| 2 | 22-8272011 | PIPE PLUG |
| 3 | 32-8M0054152 | TUBING, (38.00 Inches Bulk) (Cut to 20-1/2 Inches) |
| 4 | 21-8159234 | CHECK VALVE |
| 5 | 21-8592352 | CHECK VALVE, 90 Degree (.0625-27) |
| 6 | 32-8M0054152 | TUBING, (38.00 Inches Bulk) (Cut to 13 Inches) |
| 7 | 21-426585 | CHECK VALVE |
| 8 | 22-8272011 | PIPE PLUG |
| 9 | 54-23567 | CLIP |
| 10 | 10-878608 | SCREW, (#10-16 x .500) |
| 11 | 32-8M0054152 | TUBING, (38.00 Inches Bulk) (Cut to 11 Inches) |
| 12 | 32-892024122 | TUBING, (240.00 Inches Bulk) (Cut to 22-1/2 Inches) |
| 13 | 10-81893414 | SCREW, (M8 x 14) |
| 14 | 54-859172 | CLAMP |
| 15 | 12-36001 | WASHER |
▶Power Trim Components (38 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 25-878285 | O-RING |
| 1 | 8M0031551 | TRIM MOTOR |
| 2 | NSS | NOT SOLD SEPARATE, Armature |
| 3 | NSS | NOT SOLD SEPARATE, End Frame |
| 4 | 10-82494830 | SCREW, (M6 x 30) |
| 5 | 13-400256 | LOCKWASHER, (M6) |
| 6 | 8782451 | DRIVESHAFT |
| 7 | 878410A1 | PO CHECK KIT |
| 8 | 893929A01 | VALVE KIT, Relief, Includes Reference #26 |
| 9 | 8M0142997 | SHAFT KIT, Tilt Pivot |
| 10 | 17-878267 | PIN |
| 11 | 878235A03 | CYLINDER KIT, Tilt |
| 12 | 878239A02 | END CAP KIT, Tilt Cylinder, Includes Reference #26 |
| 13 | 8M0142999 | O-RING KIT, Includes Reference #26 |
| 14 | 8M0168219 | SHOCK ROD KIT, Includes Reference #26 |
| 15 | 8M0143000 | PISTON ASSEMBLY, Memory |
| 16 | 878406A02 | REPAIR KIT, Check Valve, Includes Reference #26 |
| 17 | 878414T01 | PISTON ASSEMBLY |
| 18 | 878413A1 | PISTON ASSEMBLY |
| 19 | 1100-8M0021648 | END CAP ASSEMBLY |
| 20 | 878264A1 | RESERVOIR KIT |
| 21 | 19-811613 | PLUG ASSEMBLY |
| 22 | 10-4000327 | SCREW, (M6 x 14) |
| 23 | 12-4002315 | WASHER |
| 24 | 892251A01 | PUMP KIT |
| 25 | 878408A1 | REPAIR KIT, Power Trim |
| 26 | 17-821539 | PIN, Trilobe |
| 27 | 10-858771 | SCREW, (M10 x 30) |
| 28 | 12-4002319 | WASHER |
| 29 | 97-818298Q1 | ANODE KIT |
| 30 | 10-8M0204707 | SCREW, (M6 x 25) |
| 31 | 12-8M0204649 | WASHER, (.281 x .500 x .060) Stainless Steel |
| 32 | 99625002 | SHAFT |
| 33 | 8M0084613 | C WASHER |
| 34 | 54-26550 | CLAMP |
| 35 | 10-878609 | SCREW, (#10-16 x .600) |
| 36 | 32-828547353 | CONDUIT, (.350 Inside Diameter x 3.00 Feet Bulk), Cut to 12 Inches |
| 37 | 54-816311T | TIE STRAP, (8.00 Inches) |
▶Powerhead Gasket Set Components (2 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 27-832934A00 | GASKET SET, Powerhead |
| 0 | 26-854639001 | SEAL, Thermostat Comment: Not used for this application |
▶Reservoir Kit-Remote Oil(15943A1) (16 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 824954A1 | BRACKET KIT, Oil Reservoir Hold Down Comment: (Includes ref. 2) |
| 1 | 15943A2 | TANK ASSEMBLY, Oil (1.8 Gallon Tank) |
| 2 | NSS | NOT SOLD SEPARATE, BRACKET, Tank Mount Comment: (Also sold with Bracket Kit Below) |
| 3 | NSS | NOT SOLD SEPARATE, HANDLE/ROPE |
| 4 | 12323A1 | CORD/HOOK KIT |
| 5 | 12320 | BRACKET, Hold Down |
| 6 | 10-79968 | SCREW, (#12-11 x .750) |
| 7 | 36-43298A2 | CAP ASSEMBLY, Oil Reservoir |
| 8 | NSS | NOT SOLD SEPARATE, CORD |
| 9 | 25-11332 | O-RING, (2.225 x .210), Cap |
| 10 | 816190A4 | HOUSING ASSEMBLY, Adapter |
| 11 | 36-43298A2 | CAP ASSEMBLY, Housing Adaptor |
| 12 | 25-11332 | O-RING, (2.225 x .210) |
| 13 | 32-99802 | TUBE, Oil Pick Up |
| 14 | 32-99439 | HOSE, (114.00 Inches) |
| 15 | 54-816311T | TIE STRAP, (8.00 Inches) |
▶Service/Support Material (1 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 37-804670A06 | DECAL, EPA Label Information Comment: (225/250) |
▶Shift Linkage (20 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 899080T01 | BRACKET ASSEMBLY, Anchor |
| 2 | 824016 | LATCH |
| 3 | 10-42975 | DRIVE SCREW |
| 4 | 824015 | CUP, Barrel Retainer |
| 5 | 87-8M0207794 | SWITCH |
| 6 | 10-82470620 | SCREW, (M3.5 x 20) |
| 7 | 54-816311T | TIE STRAP, (8.00 Inches) |
| 8 | 8M0033943 | SHIFT RAIL |
| 9 | 8M0006893 | SCREW, (M8 x 25 MM) |
| 10 | 8M0188525 | SHIFT SHAFT, Upper Comment: XX Long |
| 11 | 23-892263 | BUSHING |
| 12 | 11-401386 | NUT, (M6) Stainless Steel |
| 13 | 12-69056 | WASHER, (.255 x .620 x .030) Stainless Steel |
| 14 | 899083 | LINK, Shift |
| 15 | 8M0085621 | SLIDE, Shift |
| 16 | 8M0000793 | PIN, Shift Link |
| 17 | 23-896551 | BUSHING |
| 18 | 12-69056 | WASHER, (.255 x .620 x .030) Stainless Steel |
| 19 | 11-401386 | NUT, (M6) Stainless Steel |
| 20 | 8M0001157 | PIN, Bow Tie Clip |
▶Solenoid Plate (50 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 84-881262A2 | HARNESS ASSEMBLY, Alternator, Alternator |
| 1 | 858366T2 | PLATE |
| 2 | 89-817109A2 | SOLENOID ASSEMBLY, (#10-32 / .3125-18 Terminals) |
| 3 | 25-822179 | GROMMET |
| 4 | 12-8M0204649 | WASHER, (.281 x .500 x .060) Stainless Steel |
| 5 | 10-82129125 | SCREW, (M6 x 25 MM) |
| 6 | 23-8M0214955 | BUSHING |
| 7 | 8M0207773 | RELAY ASSEMBLY |
| 8 | NSS | NOT SOLD SEPARATE, Decal-Trim Relay |
| 9 | 828102 | BRACKET |
| 10 | 23-8M0214955 | BUSHING |
| 11 | 25-818967 | GROMMET |
| 12 | 10-82129110 | SCREW, (M6 x 10) |
| 13 | 54-816311T | TIE STRAP, (8.00 Inches) |
| 14 | 54-828991T | CLIP |
| 15 | 54-858755 | CLIP, (1.00) |
| 16 | 84-878231A6 | HARNESS ASSEMBLY, Fuse - 100 Ampere |
| 17 | 84-819514T21 | HARNESS ASSEMBLY, Trim |
| 18 | 84-892973T01 | HARNESS ASSEMBLY, Engine |
| 19 | 88-832969T05 | FUSE, Mini - Tan - 5 Ampere Comment: (5 AMP) |
| 20 | 858754 | COVER, Fuse |
| 21 | 84-882829A1 | CABLE ASSEMBLY, Starter |
| 22 | 84-88439A46 | CABLE ASSEMBLY, Battery - Positive |
| 23 | 11-8M0204668 | NUT, (.312-18) |
| 24 | 13-53166 | LOCKWASHER, (.312) |
| 25 | 10-32,11-813938 | CAP NUT, |
| 26 | 10-32,11-45076 | NUT, Brass |
| 27 | 84-88807A16 | CABLE ASSEMBLY, (4.00 Inches) Black |
| 28 | 13541 | PLUG, Male |
| 29 | 89790646T | PCM, Propulsion Control Module Comment: (250) |
| 30 | 10-82130025 | SCREW, (M6 x 25) |
| 31 | 12-65567 | WASHER, (.265 x .750 x .048) Stainless Steel |
| 32 | 25-8M0190980 | GROMMET |
| 33 | 23-856954 | BUSHING |
| 34 | 54-891520001 | CLIP |
| 35 | 10-82129114 | SCREW, (M6 x 14) |
| 36 | 892295F01 | BRACKET |
| 37 | 25-8M0190980 | GROMMET |
| 38 | 23-822003 | BUSHING |
| 39 | 881879T11 | SENSOR, Pressure (0 - 100 PSI) |
| 40 | 22-8M0207782 | FITTING |
| 41 | 54-883066 | CLIP, (.865) |
| 42 | 54-879962 | CLIP |
| 43 | 10-82130025 | SCREW, (M6 x 25) |
| 44 | 10-82130012 | SCREW, (M6 x 12) |
| 45 | 84-88439A26 | CABLE ASSEMBLY, Battery - Negative |
| 46 | 10-81893420 | SCREW, (M8 x 20) |
| 47 | 84-882815A1 | HARNESS ASSEMBLY (200/3.0L Work) |
| 48 | 877613A02 | CONNECTOR ASSEMBLY, Weather Cap 6 Pin |
| 49 | 830796A04 | CONNECTOR ASSEMBLY, Weather Cap - Male |
▶Speedometer/Block Pressure System (8 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 22-881866 | FITTING |
| 2 | 32-85978571 | TUBING, (52.00 Inches Bulk) (Cut to 44 Inches) |
| 3 | 22-8M0214971 | COUPLER |
| 4 | 22-859732 | PLUG |
| 5 | 22-8M0214970 | FITTING, Adapter |
| 6 | 32-85978571 | TUBING, (52.00 Inches Bulk) (Cut to 5 Inches) |
| 7 | 22-875207 | TEE, Fitting, To Coil Plate Sensor |
| 8 | 32-85944975 | TUBING, (72.00 Inches Bulk) (Cut to 52 Inches) |
▶Starboard Bleed System (8 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 883894A07 | POWERHEAD ASSEMBLY Comment: (250) |
| 1 | 32-8M0054152 | TUBING, (38.00 Inches Bulk) (Cut to 15-1/2 Inches) |
| 2 | 21-8592352 | CHECK VALVE, 90 Degree (.0625-27) |
| 3 | 32-8M0054152 | TUBING, (38.00 Inches Bulk) (Cut to 16-1/2 Inches) |
| 4 | 32-8M0054152 | TUBING, (38.00 Inches Bulk) (Cut to 15 Inches) |
| 5 | 54-23567 | CLIP |
| 6 | 10-878608 | SCREW, (#10-16 x .500) |
| 7 | 21-8282182 | CHECK VALVE |
▶Starter Motor (14 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 50-892339T01 | STARTER MOTOR ASSEMBLY |
| 2 | NSS | NOT SOLD SEPARATE, Thru Bolt |
| 3 | 43-880805A1 | GEAR KIT |
| 4 | 809463A1 | SOLENOID KIT |
| 5 | 8M0065258 | BRUSH SET |
| 6 | 10-69035 | SCREW AND LOCKWASHER, (.250-20 x .625) Stainless Steel |
| 7 | 84-93388A1 | CABLE ASSEMBLY, (6.00 Inches) Black |
| 8 | 37-8272822 | DECAL, Warning |
| 9 | 13-400255 | LOCKWASHER, (M5) |
| 10 | 11-400211 | NUT, (M5) Stainless Steel |
| 11 | 13-8M0204647 | LOCKWASHER, (.312) |
| 12 | 11-400213 | NUT, (M8) Stainless Steel |
| 13 | 23-8M0034918 | COLLAR |
| 14 | 8M0043276 | STOP |
▶Swivel Bracket and Steering Arm (32 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 1499-8M0102865 | SWIVEL BRACKET ASSEMBLY, Black |
| 2 | 25-8M0214926 | O-RING |
| 3 | 23-818764 | BUSHING |
| 4 | 23-816039 | SPACER |
| 5 | 26-87735 | SEAL, Oil (Lower) |
| 6 | 22-8M0169589 | FITTING, Grease |
| 7 | 23-821207 | BUSHING |
| 8 | 12-816432 | THRUST WASHER |
| 9 | 826364T | YOKE, Bottom |
| 10 | 53-67684 | RING, Retaining |
| 11 | 8M0045383 | STRIKER PLATE |
| 12 | 13-58643 | LOCKWASHER, (.375) |
| 13 | 11-46335 | NUT, (.375-24) |
| 14 | 10-64014 | SCREW, (.250-28 x .500) |
| 15 | NSS | NOT SOLD SEPARATE, Decal-Serial Overlaminate |
| 16 | 8M0074846 | SENDER ASSEMBLY, Trim |
| 17 | 10-852368 | SCREW, (#10-24 x .750) |
| 18 | 10,13-26996 | LOCKWASHER, Stainless Steel |
| 19 | 12-89302 | WASHER, (.203 x .406 x .040) |
| 20 | 17-8M0132731 | SWIVEL PIN ASSEMBLY, Steering Arm - Stainless Steel |
| 21 | 10-8M0141069 | SCREW, (M12 x 190) |
| 22 | 824998001 | BUMPER |
| 23 | 8163851 | MOUNT, Upper |
| 24 | 12-8154371 | WASHER |
| 25 | 12-815436 | WASHER |
| 26 | 11-896963 | NUT, (M12) |
| 27 | 8M0036783 | CLAMP |
| 28 | 10-81893435 | SCREW, (M8 x 35) |
| 29 | 92876A12 | LINK ROD ASSEMBLY |
| 30 | 10-849838 | SCREW, (.375-24 x 1.250) |
| 31 | 11-8M0204726 | NUT, (.375-24) Brass |
| 32 | 12-37828 | WASHER, (.390 x .625 x .062) Stainless Steel |
▶Throttle Linkage (12 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 8M0040987 | LEVER |
| 2 | 10-81893435 | SCREW, (M8 x 35) |
| 3 | 12-36042 | WASHER |
| 4 | 23-821113 | BUSHING |
| 5 | 10-40124 | SCREW, (M6 x 55) |
| 6 | 11-400212 | NUT, (M6) Stainless Steel |
| 7 | 42942 | CAP |
| 8 | 42927 | INSERT |
| 9 | 11-401386 | NUT, (M6) Stainless Steel |
| 10 | 12-35459 | WASHER |
| 11 | 23-8M0215006 | BUSHING |
| 12 | 8583541 | LINK, To Cam |
▶Tools (1 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 0 | 91-881814A1 | SEAL KIT, Wire Harness (Electricl) |
▶Top Cowl (24 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 37-809168A03 | DECAL SET Comment: (Mariner 250) |
| 1 | 4001-880012T36 | TOP COWL ASSEMBLY, Silver |
| 2 | 10-82130030 | SCREW, (M6 x 30) |
| 3 | 880014A02 | SOUND BLANKET KIT |
| 4 | NSS | NOT SOLD SEPARATE, Sound Blanket-Top |
| 5 | NSS | NOT SOLD SEPARATE, Sound Blanket-Port |
| 6 | 13-93702 | WASHER, (.250 External Star) |
| 7 | 826639T | COVER |
| 8 | 8M0010389 | BRACKET ASSEMBLY, Cowl |
| 9 | NSS | NOT SOLD SEPARATE, Pin |
| 10 | 53-8237951 | RING, Retaining |
| 11 | 8M0207770 | ROLLER |
| 12 | 25-850685T02 | GROMMET |
| 13 | 8M0036792 | BRACKET, Front |
| 14 | 10-82130020 | SCREW, (M6 x 20) |
| 15 | 815477 | BUMPER, Latch |
| 16 | 8155381 | PIN, Roll |
| 17 | 11-401366 | NUT, (M6) Stainless Steel |
| 18 | 12-8M0204649 | WASHER, (.281 x .500 x .060) Stainless Steel |
| 19 | 53-8237951 | RING, Retaining |
| 20 | 8M0207770 | ROLLER |
| 21 | 12-87161 | WASHER |
| 22 | NSS | NOT SOLD SEPARATE, Decal-Break-In |
| 23 | NSS | NOT SOLD SEPARATE, Decal-Counter Rotation |
▶Transom Brackets (21 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| - | 3425-828333A09 | TRANSOM BRACKET KIT |
| 1 | NSS | NOT SOLD SEPARATE, Transom Bracket-Starboard |
| 2 | NSS | NOT SOLD SEPARATE, Transom Bracket-Port |
| 3 | 22-8M0169588 | FITTING, Grease, Port |
| 4 | 826125A1 | TILT TUBE |
| 5 | 11-826135 | NUT, (1.00-14) Nylon Insert |
| 6 | 25-45711 | O-RING, (.612 x .103) |
| 7 | 13-88750 | WASHER |
| 8 | 11-826164 | NUT, (.875-14) |
| 9 | 10-8M0204730 | SCREW, (.500-20 x 5 Inches) |
| 10 | 12-8M0204665 | WASHER, (.530 x .870 x .105) Stainless Steel |
| 11 | 12-8M0204648 | WASHER, (1.5 x 3.05 x 0.13) Stainless Steel |
| 12 | 11-82671117 | NUT, (.500-20) |
| 13 | 8M0115104 | LEVER ASSEMBLY, Tilt Lock |
| 14 | 24-830899 | SPRING, Tension |
| 15 | 23-65830 | NYLINER |
| 16 | 24-830900 | SPRING, Compression |
| 17 | 99633 | KNOB |
| 18 | 17-99615 | PIN, Groove |
| 19 | 17-893709 | PIN |
| 20 | 37-8M0043059 | DECAL, Warning |
▶Vapor Separator Components (35 parts)
| Ref | OEM Part # | Part Name |
|---|---|---|
| 1 | 883245T04 | COVER KIT, Vapor Separator |
| 2 | 22-881740 | FITTING, Straight |
| 3 | 22-883249 | FITTING |
| 4 | NSS | NOT SOLD SEPARATE, Elbow |
| 5 | 22-885186A1 | FITTING KIT |
| 6 | 25-831985 | O-RING, (.468 x .078) |
| 7 | 35-885188 | FILTER |
| 8 | 883219 | VALVE |
| 9 | 25-8M0062785 | O-RING |
| 10 | 883220 | CAP |
| 11 | 19-883208 | PLUG |
| 12 | 26-883248 | SEAL |
| 13 | 27-883252 | GASKET |
| 14 | 883257T1 | REGULATOR |
| 15 | 25-883593A1 | O-RING KIT |
| 16 | 12-883258 | WASHER |
| 17 | 10-883261 | SCREW, (M5 x .8) |
| 18 | 10-883261 | SCREW, (M5 x .8) |
| 19 | 84-881831 | WIRE ASSEMBLY |
| 20 | 1395-808612 | SCREW AND WASHER, (#8-32 x .750) |
| 21 | 883253A1 | FLOAT KIT |
| 22 | F10064 | SHAFT |
| 23 | 883247A1 | VALVE/SEAT KIT, Inlet |
| 24 | 10-883223 | SCREW, (M6 x 16) |
| 25 | 35-18458Q4 | FILTER, Fuel-Water Separating |
| 26 | 8M0204710 | PROBE |
| 27 | 889318002 | BAFFLE |
| 28 | 10-883223 | SCREW, (M6 x 16) |
| 29 | 881705T1 | PUMP KIT |
| 30 | 8M6000589 | SLEEVE |
| 31 | 883256T1 | BOWL KIT |
| 32 | 26-883248 | SEAL |
| 33 | 19-855435A1 | PLUG KIT |
| 34 | 25-8M0062785 | O-RING |
| 35 | 10-16955 | SCREW, (M6 x 8) |
100-Hour / Annual Service Checklist
Regular maintenance keeps your Mercury 250 (3.0L EFI) 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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