Mercury 250 (3.0L EFI) (0G129222 THRU 0G760299) Parts & Diagrams

OEM and aftermarket replacement parts for Mercury 250 (3.0L EFI). Scroll down for exploded parts diagrams (40), specifications, and maintenance reference.

Mercury 250 (3.0L EFI) (0G129222 THRU 0G760299) Parts & Diagrams

🔎 Mercury 250 (3.0L EFI) Reference Library — Exploded parts diagrams (40 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) ACCESSORIES
Ref OEM Part # Part Name
0 17334A2 VISUAL WARNING SYSTEM (LOW OIL/OVERHEAT)
ANCHOR BRACKET/THROTTLE LINKAGE (30 parts) ANCHOR BRACKET/THROTTLE LINKAGE
Ref OEM Part # Part Name
1 87-8M0052931 SWITCH
2 10-82470620 SCREW, (M3.5 x 20)
3 824010T05 BRACKET
4 10-42975 DRIVE SCREW
5 824016 LATCH
6 824015 CUP, Barrel Retainer
7 10-82155025 SCREW, (M8 x 25) Stainless Steel
8 23-824013 BUSHING
9 23-812707 BUSHING
10 24-824014 SPRING
11 8240111 GUIDE, Roller
12 8142392 CAM
13 23-26856 BUSHING
14 11-401386 NUT, (M6)
15 825377 LINK, Throttle
16 23-8M0215006 BUSHING
17 826205 BRACKET, Oil Link
18 878190 LINK
19 10-82155025 SCREW, (M8 x 25) Stainless Steel
20 11-401388 NUT, (M8)
21 8M0040987 LEVER, Throttle Control
22 10-81893435 SCREW, (M8 x 35)
23 12-36042 WASHER
24 42927 INSERT
25 23-821113 BUSHING
26 11-401386 NUT, (M6)
27 10-40124 SCREW, (M6 x 55)
28 11-400212 NUT, (M6) Stainless Steel
29 42942 CAP
30 12-35459 WASHER
BLEED SYSTEM(PORT)(S/N-0G437999 AND BELOW) (15 parts) BLEED SYSTEM(PORT)(S/N-0G437999 AND BELOW)
Ref OEM Part # Part Name
- 809794A97 POWERHEAD ASSEMBLY
1 827210A1 MANIFOLD ASSEMBLY, Bleed System
2 21-426233 CHECK VALVE
3 22-15133 FITTING
4 10-92051 SCREW, (10-16 x .75)
5 32-892024122 TUBING, (20.00 Feet Bulk) (9 IN.)
6 32-892024122 TUBING, (20.00 Feet Bulk) (5-1/4 IN.)
7 32-892024122 TUBING, (20.00 Feet Bulk) (7 IN.)
8 32-892024122 TUBING, (20.00 Feet Bulk) (11 IN.)
9 32-9912688 TUBING, (36.00 Inches Bulk) (1-3/4 IN.)
10 35-8M0207786 FILTER
11 22-827200 FITTING, Tee
12 22-768431 FITTING Comment: (REF. # 11 ON "CYLINDER BLOCK AND END CAP")
13 22-8245021 CONNECTOR Comment: (REF. # 8 ON "CYLINDER BLOCK AND END CAP")
14 22-8272011 PIPE PLUG Comment: (REF. # 31 ON "CYLINDER BLOCK AND END CAP")
BLEED SYSTEM(PORT)(S/N-0G438000 THRU 0G485988) (10 parts) BLEED SYSTEM(PORT)(S/N-0G438000 THRU 0G485988)
Ref OEM Part # Part Name
- 809794A97 POWERHEAD ASSEMBLY
1 21-149125 CHECK VALVE
2 22-768431 FITTING Comment: (SHOWN AS REF #11 ON "CYLINDER BLOCK AND END CAP")
3 22-8243561 FITTING
4 22-59169003 FITTING (PLASTIC)
5 22-8245021 CONNECTOR Comment: (SHOWN AS REF #8 ON "CYLINDER BLOCK AND END CAP")
6 32-892024122 TUBING, (20.00 Feet Bulk) (6 IN.)
7 32-892024122 TUBING, (20.00 Feet Bulk) (3 IN.)
8 32-892024122 TUBING, (20.00 Feet Bulk) (9-1/2 IN.)
9 32-892024122 TUBING, (20.00 Feet Bulk) (1-1/2 IN.)
BLEED SYSTEM(PORT)(S/N-0G485989 AND UP) (12 parts) BLEED SYSTEM(PORT)(S/N-0G485989 AND UP)
Ref OEM Part # Part Name
- 809794A97 POWERHEAD ASSEMBLY
1 32-892024122 TUBING, (20.00 Feet Bulk) (6 IN.)
2 32-892024122 TUBING, (20.00 Feet Bulk) (3 IN.)
3 32-892024122 TUBING, (20.00 Feet Bulk) (13-1/4 IN.)
4 32-892024122 TUBING, (20.00 Feet Bulk) (16 IN.)
5 21-149125 CHECK VALVE
6 22-8243561 FITTING
7 22-8245021 CONNECTOR Comment: (REF. #8 ON "CYLINDER BLOCK AND END CAP")
8 21-8282182 CHECK VALVE Comment: (REF. #13 ON "CYLINDER BLOCK AND END CAP")
9 21-8348041 CHECK VALVE Comment: (REF. #12 ON "CYLINDER BLOCK AND END CAP")
10 54-22875 CLIP
11 10-48408 SCREW, (#10-16 x .500)
BLEED SYSTEM(STARBOARD)(S/N-0G437999 AND BELOW) (17 parts) BLEED SYSTEM(STARBOARD)(S/N-0G437999 AND BELOW)
Ref OEM Part # Part Name
- 809794A97 POWERHEAD ASSEMBLY
1 827210A1 MANIFOLD ASSEMBLY, Bleed System
2 21-426233 CHECK VALVE
3 22-15133 FITTING
4 10-92051 SCREW, (10-16 x .75)
5 32-892024122 TUBING, (20.00 Feet Bulk) (9 IN.)
6 32-892024122 TUBING, (20.00 Feet Bulk) (5-1/4 IN.)
7 22-768431 FITTING Comment: (SHOWN AS REF. #11 ON "CYLINDER BLOCK AND END CAP")
8 32-892024122 TUBING, (20.00 Feet Bulk) (17 IN.)
9 32-892024122 TUBING, (20.00 Feet Bulk) (4 IN.) Comment: (REF. #30 ON "CYLINDER BLOCK AND END CAP")
10 32-892024122 TUBING, (20.00 Feet Bulk) (22-1/2 IN.) Comment: (REF. #27 ON "CYLINDER BLOCK AND END CAP")
11 32-892024122 TUBING, (20.00 Feet Bulk) (7 IN.)
12 32-892024122 TUBING, (20.00 Feet Bulk) (8-1/2 IN.)
13 21-8159234 CHECK VALVE Comment: (REF. #16 ON "CYLINDER BLOCK AND END CAP")
14 21-426585 CHECK VALVE Comment: (REF. #14 ON "CYLINDER BLOCK AND END CAP"
15 22-8245021 CONNECTOR Comment: (SHOWN AS REF. #8 ON "CYLINDER BLOCK AND END CAP")
16 22-8272011 PIPE PLUG
BLEED SYSTEM(STARBOARD)(S/N-0G485989 AND UP) (15 parts) BLEED SYSTEM(STARBOARD)(S/N-0G485989 AND UP)
Ref OEM Part # Part Name
- 809794A97 POWERHEAD ASSEMBLY
1 32-892024122 TUBING, (20.00 Feet Bulk) (8-1/2 IN.)
2 32-892024122 TUBING, (20.00 Feet Bulk) (6 IN.)
3 32-892024122 TUBING, (20.00 Feet Bulk) (3 IIN.)
4 32-892024122 TUBING, (20.00 Feet Bulk) (22-1/2 IN.) Comment: (REF. #27 ON "CYLINDER BLOCK AND END CAP")
5 32-892024122 TUBING, (20.00 Feet Bulk) (13-1/4 IN.)
6 32-892024122 TUBING, (20.00 Feet Bulk) (3-3/4 IN.) Comment: (REF. #30 ON "CYLINDER BLOCK AND END CAP")
7 32-892024122 TUBING, (20.00 Feet Bulk) (9-1/2 IN.)
8 21-149125 CHECK VALVE
9 22-8243561 FITTING
10 22-8245021 CONNECTOR Comment: (REF. #8 ON "CYLINDER BLOCK AND END CAP")
11 21-426585 CHECK VALVE Comment: (REF. #14 ON "CYLINDER BLOCK AND END CAP")
12 21-8159234 CHECK VALVE Comment: (REF. #16 ON "CYLINDER BLOCK AND END CAP")
13 21-8348041 CHECK VALVE Comment: (REF. #12 ON "CYLINDER BLOCK AND END CAP")
14 21-8282182 CHECK VALVE Comment: (REF. #13 ON "CYLINDER BLOCK AND END CAP")
BLEED SYSTEM(STBD.)(S/N-0G438000 THRU 0G485988) (15 parts) BLEED SYSTEM(STBD.)(S/N-0G438000 THRU 0G485988)
Ref OEM Part # Part Name
- 809794A97 POWERHEAD ASSEMBLY
1 21-149125 CHECK VALVE
2 22-768431 FITTING Comment: SHOWN AS REF #11 ON "CYLINDER BLOCK AND END CAP"
3 22-8243561 FITTING
4 22-59169003 FITTING (PLASTIC)
5 22-8245021 CONNECTOR Comment: SHOWN AS REF #8 ON "CYLINDER BLOCK AND END CAP"
6 32-892024122 TUBING, (20.00 Feet Bulk) (3 IN.)
7 32-892024122 TUBING, (20.00 Feet Bulk) (6 IN.)
8 32-892024122 TUBING, (20.00 Feet Bulk) (9-1/2 IN.)
9 32-892024122 TUBING, (20.00 Feet Bulk) (1-1/2 IN.)
10 32-892024122 TUBING, (20.00 Feet Bulk) (14 IN.)
11 32-892024122 TUBING, (20.00 Feet Bulk) (11-3/4 IN.)
12 32-892024122 TUBING, (20.00 Feet Bulk) (3-3/4 IN.) Comment: SHOWN AS REF #28 ON "CYLINDER BLOCK AND END CAP"
13 21-426585 CHECK VALVE Comment: SHOWN AS REF #14 ON "CYLINDER BLOCK AND END CAP"
14 21-8159234 CHECK VALVE Comment: SHOWN AS REF #16 ON "CYLINDER BLOCK AND END CAP"
BOTTOM COWL (18 parts) BOTTOM COWL
Ref OEM Part # Part Name
1 4009-818448A4 BOTTOM COWL Comment: WHITE-PORT
2 4009-818447A4 BOTTOM COWL Comment: WHITE-STBD.
3 8M0109217 SEAL, Cowl (41.00 Inches)
4 10-82130040 SCREW, (M6 x 40)
5 10-824868 SCREW, (M6 x 75)
6 889740A02 FRONT HANDLE Comment: WHITE
7 23-335891 BUSHING
8 25-48462 O-RING, (.614 x .070)
9 8219423 PAWL
10 12-69057 WASHER, (.281 x .734 x .063)
11 11-401196 NUT, (M6)
12 10-8214281 SCREW, (#10-16 x .625)
13 54-822873 CLIP
14 87-8M0042301 SWITCH
15 8M0032848 RETAINER (USE WHERE APPLICABLE)
16 54-822024 CLAMP (LOWER)
17 54-822023 CLAMP (UPPER)
18 10-92799 SCREW, (#10-16 x 1.12)
CRANKSHAFT, PISTONS AND CONNECTING RODS (22 parts) CRANKSHAFT, PISTONS AND CONNECTING RODS
Ref OEM Part # Part Name
- 809794A97 POWERHEAD ASSEMBLY
1 482-9784A4 CRANKSHAFT Comment: SN# 0G303046 & Up
2 30-67923T BEARING, Ball (LOWER)
3 53-67446 RING
4 43-19301 GEAR
5 39-843198T01 RING
6 28-91800 KEY, Woodruff
7 25-35126 O-RING, (.859 x .139) Comment: SN# 0G303046 & Up
8 817001A1 RACE ASSEMBLY, Bearing
9 700-878573A2 PISTON ASSEMBLY Comment: PORT-.030 O/S
10 53-8320811 LOCK RING
11 39-875257A12 RING SET, Piston Comment: .030 O/S
12 600-8M0125869 CONNECTING ROD ASSEMBLY
13 10-94320 SCREW, (.375-24 x 1.250)
14 31-844338A01 BEARING/CAGE KIT
15 12-88263 THRUST WASHER
16 29-8M0204715 NEEDLE, Roller Bearing
17 31-816773A2 BEARING ASSEMBLY (UPPER)
18 26-859093 SEAL, Oil
19 25-823683 O-RING, (1.989 x .070)
20 12-33001 WASHER, (.641 x 1.250 x .190)
21 11-42979 NUT, (M16)
CYLINDER BLOCK AND END CAP (66 parts) CYLINDER BLOCK AND END CAP
Ref OEM Part # Part Name
- 809794A97 POWERHEAD ASSEMBLY
1 885-9811A19 CYLINDER BLOCK Comment: SN# 0G437999 & Below
2 16-903509 STUD, (M10 x 1.5 x 64)
3 16-8154431 STUD, (M10 x 1.5 x 155)
4 22-328022 PLUG, Pipe (.125-27)
5 22-36382 FITTING, (.250-18 x .62) Brass (USE WHERE APPLICABLE)
6 8248577 DEFLECTOR, Water Comment: SN# 0G438000 & Up
7 21-8781051 FITTING
8 22-8245021 CONNECTOR
9 8215832 PIN
10 17-43044 PIN, Dowel - Without Hole (.375 x .625)
11 22-768431 FITTING Comment: SN# 0G437999 & Below
12 21-8348041 CHECK VALVE Comment: SN# 0G485989 & Up
13 21-8282182 CHECK VALVE
14 21-426585 CHECK VALVE
15 10-81893435 SCREW, (M8 x 35)
16 21-8159234 CHECK VALVE
17 10-82446180 SCREW, (M10 x 80)
18 17-8M0036405 PIN
19 825367A1 CARRIER ASSEMBLY (INCLUDES 6 CARRIERS) Comment: SN# 0G437999 & Below
20 21-42657A3 CHECK VALVE Comment: SN# 0G437999 & Below
21 19-850309001 PLUG Comment: SN# 0G438000 & Up
22 8217621 TIMING POINTER
23 22-687271 FITTING, (.250-18) 90 Degree - Brass (INCLUDED W/REF. #26)
24 10-82130012 SCREW, (M6 x 12)
25 54-816311T TIE STRAP, (8.00 Inches)
26 32-826544A1 TUBING KIT
27 32-892024122 TUBING, (20.00 Feet Bulk) (22-1/2 IN.)
28 12-8M0214963 WASHER, (.406 x .750 x .104)
29 11-4013610 NUT, (M10)
30 32-892024122 TUBING, (20.00 Feet Bulk) (4 IN.) Comment: SN# 0G437999 & Below
31 22-8272011 PIPE PLUG Comment: SN# 0G437999 & Below
32 8256751 BRACKET
33 10-82130012 SCREW, (M6 x 12)
34 8211051 BRACKET, Alternator
35 10-81893450 SCREW, (M8 x 50)
36 8212251 BRACKET
37 10-82130012 SCREW, (M6 x 12)
38 822486 BRACKET, Guide
39 821909 SENSOR
40 10-82104510 SCREW, (M5 x 10)
41 818574 SEAL
42 25-818573 O-RING
43 812851A2 CYLINDER HEAD
44 75692 THERMOSTAT (143 DEGREES) Comment: SN# 0G437999 & Below
45 27-8M0204714 GASKET
46 19801A1 COVER, Thermostat Comment: USE WITH 90 DEGREE ELBOW
47 22-687271 FITTING, (.250-18) 90 Degree - Brass
48 32-77653101 HOSE, (59.00 Inches Bulk) (20 IN.)(21-1/2 IN.) Comment: USE WITH 90 DEGREE ELBOW
49 10-82446090 SCREW, (M8 x 90)
50 10-8M0045380 SCREW, (M8 x 50)
51 13536A14 SENSOR ASSEMBLY, Temperature
52 84-88807A42 CABLE ASSEMBLY (USE WHERE APPLICABLE)
53 828523 RETAINER, Sensor Comment: DESIGN I
54 10-828552 SCREW, (.375-16 x .500) Comment: DESIGN I
55 137151 RETAINER Comment: DESIGN II
56 10-81893412 SCREW, (M8 x 12) Comment: DESIGN II
57 1171-9787A4 END CAP ASSEMBLY Comment: SN# 0G303046 & Up
58 25-62700 O-RING, (3.237 x .103) Comment: SN# 0G303046 & Up
59 26-8308981 SEAL, Oil Comment: SN# 0G303046 & Up
60 26-859093 SEAL, Oil Comment: SEE SERVICE BULLETIN 95-4 SN# 0G303045 & Below
61 10-82130020 SCREW, (M6 x 20)
62 8261211 BRACKET
63 10-48408 SCREW, (#10-16 x .500)
64 10-82130012 SCREW, (M6 x 12)
65 8266241 CLAMP
DRIVESHAFT HOUSING(S/N-0G437999 AND BELOW) (29 parts) DRIVESHAFT HOUSING(S/N-0G437999 AND BELOW)
Ref OEM Part # Part Name
1 3519-818453A1 HOUSING ASSEMBLY, Driveshaft Comment: (GRAY-X/XX-LONG)
2 16-8M0008031 STUD (M12 X 1.75 X 50) Comment: (L/X-LONG)
3 10-82130130 SCREW, (M10 x 30) Comment: (L/X-LONG)
4 25-89417 GROMMET
5 12-4002321 WASHER, (12.80 mm x 24.0 mm x 2.4 mm) Stainless Steel
6 11-4013812 NUT (M12 X 1.75)
7 19-64649 PLUG
8 10-898834 SCREW, (M14 x 178)
9 88238A10 CABLE ASSEMBLY, Ground
10 12-815432 WASHER, (.562 x 2.00 x .125)
11 12-8154331 WASHER
12 8137711 MOUNT
13 12-825190 WASHER
14 11-896602 NUT
15 8186442 CLAMP
16 10-81893435 SCREW, (M8 x 35)
17 13-72521 LOCKWASHER, Internal Tooth
18 818645F2 COVER (GRAY)
19 10-69079 SCREW, (#10-16 x .440)
20 816503 SEAL
21 826384T1 TUBE, Exhaust
22 10-81893435 SCREW, (M8 x 35)
23 32-8141966 TUBE, Water Comment: (XX-LONG)
24 814080001 SEAL
25 814081 CLAMP
26 8M0105088 SPACER Comment: (GRAY) XX-LONG
27 17-43044 PIN, Dowel - Without Hole (.375 x .625) Comment: XX-LONG
28 16-824118 STUD (M10 X 1.5 X 173) Comment: XX-LONG
29 11-400636 NUT (M10 X 1.5) Comment: XX-LONG
DRIVESHAFT HOUSING(S/N-0G438000 AND UP) (29 parts) DRIVESHAFT HOUSING(S/N-0G438000 AND UP)
Ref OEM Part # Part Name
1 3519-832938A3 HOUSING ASSEMBLY, Driveshaft Comment: (WHITE-X/XX-LONG)
2 16-8M0008031 STUD (M12 X 1.75 X 50)
3 10-82130130 SCREW, (M10 x 30)
4 25-8331231 GROMMET
5 12-4002321 WASHER, (12.80 mm x 24.0 mm x 2.4 mm) Stainless Steel
6 11-4013812 NUT (M12 X 1.75)
7 19-64649 PLUG
8 10-898834 SCREW, (M14 x 178)
9 88238A10 CABLE ASSEMBLY, Ground
10 12-815432 WASHER, (.562 x 2.00 x .125)
11 12-8154331 WASHER
12 8137711 MOUNT
13 12-825190 WASHER
14 11-896602 NUT
15 8186442 CLAMP
16 10-81893435 SCREW, (M8 x 35)
17 13-72521 LOCKWASHER, Internal Tooth
18 818645F4 COVER Comment: (WHITE)
19 10-69079 SCREW, (#10-16 x .440)
20 8329321 SEAL
21 833116A7 TUBE ASSEMBLY, Exhaust
22 10-81893435 SCREW, (M8 x 35)
23 32-8M0042787 TUBE, Water Comment: (XX-LONG)
24 832940001 SEAL
25 8329391 CLAMP
26 823979T5 SPACER Comment: (WHITE) XX-LONG
27 17-43044 PIN, Dowel - Without Hole (.375 x .625) Comment: XX-LONG
28 16-824118 STUD (M10 X 1.5 X 173) Comment: XX-LONG
29 11-400636 NUT (M10 X 1.5) Comment: XX-LONG
Dual Engine Tie Bar Kit (21 parts) Dual Engine Tie Bar Kit
Ref OEM Part # Part Name
- 92876A9 EXTENSION KIT, Dual Engine
1 715651 TUBE, Steering Cable
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)
13 8M0026167 STEERING EYE
14 23-23651 SLEEVE, (1.625)
15 97931 TUBING, (4.00 Inches)
16 8M0026098 COUPLER, (15.00 Inches)
17 11-42099 NUT, (.562-18)
18 22-821169 COUPLING
19 12-34931 WASHER, (.406 x .734 x .063) Stainless Steel
20 10-94319 SCREW, (.375-24 x 1.5)
ELECTRICAL COMPONENTS(S/N-0G303045 AND BELOW) (42 parts) ELECTRICAL COMPONENTS(S/N-0G303045 AND BELOW)
Ref OEM Part # Part Name
1 825296 PLATE, Electrical Mounting
2 827509A12 CDM ASSEMBLY
3 10-82129114 SCREW, (M6 x 14)
4 84-821945A56 CABLE ASSEMBLY, Hi Tension
5 85-63709A1 BOOT/TERMINAL KIT
6 33-941 SPARK PLUG
7 10-81893435 SCREW, (M8 x 35)
8 12-56720 WASHER, (.330 x .750 x .060) Stainless Steel
9 25-825380001 GROMMET
10 23-19064 BUSHING
11 830046T02 ECU, Engine Control Unit (EFI) Comment: (NAME PLATE IS WHITE/RED)
12 10-82129145 SCREW, (M6 x 45)
13 84-88439A34 CABLE ASSEMBLY, Positive - Battery
14 84-88439A24 CABLE ASSEMBLY, Negative - Battery
15 54-826188 CLAMP
16 10-82104520 SCREW, (M5 x 20)
17 89-817109A2 SOLENOID ASSEMBLY, (#10-32 / .3125-18 Terminals)
18 23-8M0214955 BUSHING
19 10-32,11-45076 NUT, Brass
20 13-53166 LOCKWASHER, (.312)
21 11-8M0204668 NUT, (.312-18)
22 10-82129125 SCREW, (M6 x 25)
23 54-816311T TIE STRAP, (8.00 Inches)
24 8212282 PLATE, Solenoid Mounting
25 86-45915 TERMINAL BLOCK
26 10-878608 SCREW, (#10-16 x .500)
27 10-82129110 SCREW, (M6 x 10)
28 10-82155025 SCREW, (M8 x 25) Stainless Steel
29 84-88807A16 CABLE ASSEMBLY, (4.00 Inches) Black
30 84-93388A8 CABLE ASSEMBLY, Black (12-1/2 IN.)
31 88-812619 FUSE, Yellow - 20 Ampere
32 88-19637 SOCKET, Fuse
33 10-82239320 SCREW, (M5 x 20)
34 8216091 COVER
35 84-826802A2 HARNESS ASSEMBLY, Trim
36 84-827356A2 HARNESS ASSEMBLY, SHIFT INTERRUPT (26 IN.)
37 25-818967 GROMMET
38 828102 BRACKET
39 8M0207773 RELAY
40 84-825763A2 HARNESS ASSEMBLY, EFI
41 822449A1 CONNECTOR ASSEMBLY
42 84-825433A5 HARNESS ASSEMBLY, Ignition
ELECTRICAL COMPONENTS(S/N-0G303046 AND UP) (48 parts) ELECTRICAL COMPONENTS(S/N-0G303046 AND UP)
Ref OEM Part # Part Name
1 825296T1 PLATE, Electrical Mounting
2 10-82129114 SCREW, (M6 x 14)
3 827509T7 CDM ASSEMBLY
4 84-821945A61 CABLE ASSEMBLY, Hi Tension (SINGLE CABLE)
5 85-63709A1 BOOT/TERMINAL KIT
6 10-82129116 SCREW, (M6 x 16)
7 54-816311T TIE STRAP, (8.00 Inches)
8 33-941 SPARK PLUG
9 10-81893435 SCREW, (M8 x 35)
10 12-56720 WASHER, (.330 x .750 x .060) Stainless Steel
11 25-825380001 GROMMET
12 23-19064 BUSHING
13 830044T05 ECU, Engine Control Unit Comment: (CDI)(250) SN# 0G437999 & Below
14 830046T01 ECU, Engine Control Unit Comment: (EFI)(250) SN# 0G437999 & Below
15 10-82129145 SCREW, (M6 x 45)
16 54-826188 CLAMP
17 10-82104520 SCREW, (M5 x 20)
18 84-825763A5 HARNESS ASSEMBLY (EFI)
19 84-825433A11 HARNESS ASSEMBLY, Ignition
20 25-818967 GROMMET
21 828102 BRACKET
22 8M0207773 RELAY
23 84-826802A2 HARNESS ASSEMBLY, Trim
24 84-88439A34 CABLE ASSEMBLY, Positive - Battery
25 84-88439A24 CABLE ASSEMBLY, Negative - Battery
26 84-827356A2 HARNESS ASSEMBLY (26 IN.)
27 8216091 COVER
28 10-82239320 SCREW, (M5 x 20)
29 88-812619 FUSE, Yellow - 20 Ampere
30 88-19637 SOCKET, Fuse
31 84-93388A8 CABLE ASSEMBLY, Black
32 8212282 PLATE, Solenoid Mounting
33 10-82155025 SCREW, (M8 x 25) Stainless Steel
34 10-82129125 SCREW, (M6 x 25)
35 84-88807A16 CABLE ASSEMBLY, (4.00 Inches) Black
36 86-45915 TERMINAL BLOCK
37 10-878607 SCREW, (#10-16 x .380)
38 89-817109A2 SOLENOID ASSEMBLY, (#10-32 / .3125-18 Terminals)
39 23-8M0214955 BUSHING
40 13-53166 LOCKWASHER, (.312)
41 11-8M0204668 NUT, (.312-18)
42 10-32,11-45076 NUT, Brass
43 54-850895 CLAMP
44 54-850896 CLAMP, (28.6)
45 850802 BRACKET
46 32-850803 HOSE (INLET)
47 32-850804 HOSE (OUTLET)
48 850801T2 PULSE FLUSH
EXHAUST PLATE (45 parts) EXHAUST PLATE
Ref OEM Part # Part Name
- 809794A97 POWERHEAD ASSEMBLY
1 832935A1 PLATE ASSEMBLY, Exhaust Comment: SN# 0G438000 & Up
2 832994 STRAINER Comment: SN# 0G437999 & Below
3 27-8329335 GASKET Comment: SN# 0G438000 & Up
4 27-823988 GASKET (LOWER) Comment: SN# 0G437999 & Below
5 24-64878 SPRING Comment: SN# 0G693842 & Up
6 27-8329344 GASKET (LOWER) Comment: Included with 832935A1 Exhaust Plate SN# 0G438000 & Up
7 8M0043157 SEAL
8 10-81893435 SCREW, (M8 x 35)
9 65663A2 COVER
10 65664A1 PLATE ASSEMBLY
11 27-88907003 GASKET
12 10-69570 SCREW, (#10-16 x .750)
13 12-76451 WASHER
14 648771 DIAPHRAGM
15 814189 POPPET
16 25-814191 GROMMET
17 814190 CARRIER
18 10-81893435 SCREW, (M8 x 35)
19 22-34982 CONNECTOR
20 22-782792 ELBOW (45 DEGREES)
21 22-821975 ELBOW, 45 Degree
22 821255 BOOT, Idle Exhaust
23 54-816311T TIE STRAP, (8.00 Inches)
24 32-8M0108355 HOSE, (57.00 Inches Bulk) (2-1/2 IN.)
25 22-8M0077650 FITTING, Tell-Tale
26 19-821908 PLUG
27 12-821915 WASHER
28 8219631 CHECK VALVE
29 25-30641 O-RING, (.299 x .103)
30 22-821952 FITTING
31 32-821976 HOSE
32 21-817519A1 CHECK VALVE ASSEMBLY, Drain
33 17-43044 PIN, Dowel - Without Hole (.375 x .625)
34 11-401386 NUT, (M6)
35 12-35459 WASHER
36 824012 ROLLER
37 11-401386 NUT, (M6)
38 883142A03 SHIFT LINK
39 23-42994 BUSHING
40 8240703 SHIFT SHAFT, Upper Comment: XX-LONG
41 23-48237 BUSHING
42 25-19565002 GROMMET
43 43585 COUPLING
44 19-828808 PLUG Comment: SN# 0G178947 & Below
FLYWHEEL/STATOR (12 parts) FLYWHEEL/STATOR
Ref OEM Part # Part Name
1 11-401386 NUT, (M6)
2 19-45907 PLUG, Yellow
3 272-821033T2 FLYWHEEL
4 398-821935A5 STATOR
5 10-82494830 SCREW, (M6 x 30)
6 821663A1 ALTERNATOR
7 10-82446155 SCREW, (M10 x 55)
8 10-82130140 SCREW, (M10 x 40)
9 12-796431 WASHER
10 11-4013610 NUT, (M10)
11 57-49756Q1 V BELT
12 12-17457 WASHER
FUEL MANAGEMENT SYSTEM (33 parts) FUEL MANAGEMENT SYSTEM
Ref OEM Part # Part Name
- 825818A12 MANAGEMENT ASSEMBLY, Fuel Comment: (225 - 2 SHUTTER)
1 8140111 BODY KIT
2 10-809091 SCREW KIT
3 809086 O-RING
4 21-424811 VALVE
5 809092 SCREW KIT, Mounting
6 10-809061 BOLT
7 13-400256 LOCKWASHER
8 12-8090621 WASHER
9 12-8090622 WASHER
10 25-88033 GROMMET
11 23-809078 COLLAR
12 15445 FLOAT KIT
13 15446 VALVE KIT, Float
14 8140101 COVER
15 22-809085 ELBOW KIT
16 10-8140761 SCREW KIT
17 809090 CONNECTION KIT, Electrical
18 32-897992A01 TUBING KIT
19 809087 ATTACHING KIT
20 814012T1 REGULATOR KIT, Fuel Pressure
21 809088T PUMP KIT, Fuel
22 808504T1 STRAINER KIT, Fuel
23 809089 FITTING KIT, Fuel Pump
24 150291 O-RING KIT
25 11-8237515 NUT, (M4)
26 11-400211 NUT, (M5) Stainless Steel
27 825762 SENSOR, MAP
28 10-82130012 SCREW, (M6 x 12)
29 22-15026 CAP Comment: BLACK SN# 0G438000 & Up
30 37-855577A14 DECAL, EPA Label Information Comment: (1998)
31 10-40132 SCREW, (M8 x 125)
32 12-8M0042642 WASHER, (.323 x .563 x .063) Stainless Steel
FUEL PUMP (28 parts) FUEL PUMP
Ref OEM Part # Part Name
- 809794A97 POWERHEAD ASSEMBLY
1 14360A78 PUMP ASSEMBLY, Fuel
2 21-857005A1 DIAPHAGM KIT
3 NSS NOT SOLD SEPARATE, Check Valve-Rubber
4 NSS NOT SOLD SEPARATE, Check Valve
5 NSS NOT SOLD SEPARATE, Retainer
6 NSS NOT SOLD SEPARATE, Gasket-Boost
7 NSS NOT SOLD SEPARATE, Cap
8 NSS NOT SOLD SEPARATE, Spring
9 NSS NOT SOLD SEPARATE, Diaphragm
10 NSS NOT SOLD SEPARATE, Gasket-Pulse
11 NSS NOT SOLD SEPARATE, Spring
12 NSS NOT SOLD SEPARATE, Cap
13 27-8M0204705 GASKET, Base
14 144303 BASE
15 987752 PLATE
16 22-629101 ELBOW, (.125-27) (90 DEGREES)
17 10-82130050 SCREW, (M6 x 50)
18 10-82104540 SCREW, (M5 x 40)
19 54-816311T TIE STRAP, (8.00 Inches)
20 32-8M0108349 TUBING, (28.00 Inches Bulk) (17 IN.)
21 22-822769 CONNECTOR
22 22-136071 ELBOW (INCLUDED WITH REF. #25)
23 35-18458Q4 FILTER KIT Comment: SN# 0G303046 & Up
24 8M0204710 PROBE Comment: SN# 0G303046 & Up
25 13170A3 BASE
26 10-82130030 SCREW, (M6 x 30)
27 22-89771Q2 CONNECTOR, (.250-18) (STRAIGHT)
G/HSG, DRIVE-STD/COUNTER-0G437999 AND BELOW-1623-822442C2 (43 parts) G/HSG, DRIVE-STD/COUNTER-0G437999 AND BELOW-1623-822442C2
Ref OEM Part # Part Name
- 817275A6 REPAIR KIT, Water Pump
1 1623-822442A26 GEAR HOUSING ASSEMBLY, Basic - Gray
2 17-379721 PIN
3 821526001 FILLER BLOCK
4 22-8M0058389 FITTING KIT, Magnetic, Plug Fill/Drain
5 12-191833 WASHER, Fiber
6 97-826134Q ANODE
7 10-4000333 SCREW, (M6 x 40)
8 11-401386 NUT, (M6)
9 31-42647A1 BEARING ASSEMBLY, Roller
10 17-43044 PIN, Dowel - Without Hole (.375 x .625)
11 10-79953Q04 SCREW KIT, (.375-16 x .250)
12 12-191833 WASHER, Fiber
13 22-85822A6 CONNECTOR Comment: (XX-LONG)
14 NSS NOT SOLD SEPARATE, Pinion Gear (Part of 43-812975A5) Comment: (1.64:1 GEAR RATIO - 17/28)(COUNTER ROTATION)
15 12-92721 WASHER
16 11-35921 NUT, (.625-18)
17 23-815921A4 BUSHING ASSEMBLY
18 26-8M0204708 SEAL, Oil
19 25-8M0214927 O-RING, (.799)
20 10-1993716 SCREW, (M6 x 16)
21 12-77674 WASHER
22 824145 SHIFT SHAFT (LOWER)
23 45-8M0140442 DRIVESHAFT (LOWER)
24 28-8M0204723 KEY
25 15-42637A1 SHIM SET
26 31-8M0146566 BEARING, Roller
27 8245191 RETAINER
28 8M0214948 CARRIER ASSEMBLY
29 25-8M0142854 O-RING, (2.175 x .175)
30 26-16977 SEAL, Oil
31 26-89238 SEAL, Oil
32 817275A1 PUMP ASSEMBLY, Water
33 26-816575A2 SEAL KIT
34 27-430331 GASKET
35 27-8172771 GASKET
36 8M0204709 FACEPLATE
37 47-43026T2 IMPELLER
38 10-1993716 SCREW, (M6 x 16)
39 816597A1 COUPLING ASSEMBLY
40 25-8M0204645 O-RING, (.796 x .139)
41 45-824115A1 EXTENSION KIT, Driveshaft Comment: (XX-LONG-30 IN.) 8 SPLINES
42 823902 COUPLING
G/HSG, DRIVE-STD/COUNTER-0G438000 AND UP-1623-822442C3 (45 parts) G/HSG, DRIVE-STD/COUNTER-0G438000 AND UP-1623-822442C3
Ref OEM Part # Part Name
- 817275Q05 REBUILD KIT, Water Pump
1 1623-822442T79 GEAR HOUSING ASSEMBLY Comment: (BASIC-WHITE)
2 17-379721 PIN
3 821526001 FILLER BLOCK
4 22-8M0058389 FITTING KIT, Magnetic, Plug Fill/Drain
5 12-191833 WASHER, Fiber
6 97-826134Q ANODE
7 10-4000333 SCREW, (M6 x 40)
8 11-401386 NUT, (M6)
9 31-42647A1 BEARING ASSEMBLY, Roller
10 17-43044 PIN, Dowel - Without Hole (.375 x .625)
11 10-79953Q04 SCREW KIT, (.375-16 x .250)
12 12-191833 WASHER, Fiber
13 22-85822A6 CONNECTOR Comment: (XXL)
14 56762 TIE STRAP, (4.00 Inches)
15 NSS NOT SOLD SEPARATE, Pinion Gear (PART OF 43-828170A2) Comment: (1.87:1 - 15/28)
16 12-92721 WASHER
17 11-35921 NUT, (.625-18)
18 23-815921A4 BUSHING ASSEMBLY
19 26-8M0204708 SEAL, Oil
20 25-8M0214927 O-RING, (.799)
21 10-1993716 SCREW, (M6 x 16)
22 12-77674 WASHER
23 824145 SHIFT SHAFT (LOWER)
24 45-8M0140442 DRIVESHAFT (LOWER)
25 28-8M0204723 KEY
26 15-42637A1 SHIM SET
27 31-8M0146566 BEARING, Roller
28 8245191 RETAINER
29 8M0214948 CARRIER ASSEMBLY
30 25-8M0142854 O-RING, (2.175 x .175)
31 26-8M0214939 SEAL, Oil
32 26-8M0214939 SEAL, Oil
33 817275A1 PUMP ASSEMBLY, Water
34 26-816575A2 SEAL KIT
35 27-430331 GASKET
36 27-8172771 GASKET
37 8M0204709 FACEPLATE
38 47-43026T2 IMPELLER
39 10-1993716 SCREW, (M6 x 16)
40 832942A1 COUPLING ASSEMBLY
41 25-8M0204645 O-RING, (.796 x .139)
42 25-8M0204654 O-RING, (1.046)
43 45-826353A1 EXTENSION KIT, Driveshaft Comment: (XX-LONG-30 IN.)
44 823902 COUPLING
G/HSG, PROP-COUNTER-0G437999 AND BELOW-1623-822442C2 (40 parts) G/HSG, PROP-COUNTER-0G437999 AND BELOW-1623-822442C2
Ref OEM Part # Part Name
- 26-816575A5 SEAL KIT, Gear Housing
1 1623-822442A26 GEAR HOUSING ASSEMBLY, Basic - Gray
43 8M0226861 SHIFT CRANK
44 818349T1 SPOOL KIT
45 15-47397A1 SHIM SET
46 828830A2 ADAPTOR ASSEMBLY, Bearing Comment: 1623-822442C3 CASTING
47 31-814653T BEARING ASSEMBLY, Needle Rollers
48 12-815481 THRUST WASHER
49 31-815480 BEARING, Thrust
50 43-826288T1 GEAR ASSEMBLY, Reverse Comment: (1.75:1 GEAR RATIO - 12/21)
51 31-815482 BEARING, Roller
52 24-30893 SPRING
53 52-853594T SLIDING CLUTCH
54 17-8M0100263 PIN, Cross
55 17-78909 PIN, Detent
56 44-8M0140448 PROPELLER SHAFT
57 43-826287A1 GEAR ASSEMBLY, Forward Comment: (1.75:1 GEAR RATIO - 12/21) INCLUDES PINION
58 23-1761526 SPACER SHIM, (.230)
59 31-15841 BEARING, Roller
60 12-17616 THRUST RING
61 818292A1 ADAPTOR ASSEMBLY, Bearing
62 31-814653T BEARING ASSEMBLY, Needle Rollers
63 12-18448 THRUST WASHER
64 31-15842 BEARING, Thrust
65 8182911 RACE, Thrust
66 814605 KEEPER
67 25-8M0214920 O-RING
68 818290T1 CARRIER ASSEMBLY, Bearing
69 31-30956T BEARING, Needle
70 26-14077 SEAL, Oil (INSIDE)
71 26-8M0204670 SEAL (OUTSIDE)
72 14-18323 TAB WASHER
73 8M2011027 RETAINER
74 97-76214Q5 ANODE KIT Comment: THESE REPLACEMENT PARTS ARE NOT INCLUDED WITH COMPLETE GEAR REPLACEMENT
75 10-8M0204686 SCREW, (.437-14 x 1.750) Comment: THESE REPLACEMENT PARTS ARE NOT INCLUDED WITH COMPLETE GEAR REPLACEMENT
76 12-835467Q01 THRUST HUB Comment: THESE REPLACEMENT PARTS ARE NOT INCLUDED WITH COMPLETE GEAR REPLACEMENT
77 13-423511 LOCKWASHER, Toothed Comment: THESE REPLACEMENT PARTS ARE NOT INCLUDED WITH COMPLETE GEAR REPLACEMENT
78 12-31211Q03 WASHER, Splined Comment: THESE REPLACEMENT PARTS ARE NOT INCLUDED WITH COMPLETE GEAR REPLACEMENT
79 14-816629Q TAB WASHER Comment: THESE REPLACEMENT PARTS ARE NOT INCLUDED WITH COMPLETE GEAR REPLACEMENT
80 11-52707Q1 PROP NUT KIT, (.750-16) Comment: THESE REPLACEMENT PARTS ARE NOT INCLUDED WITH COMPLETE GEAR REPLACEMENT
G/HSG, PROP-COUNTER-G438000 AND UP-1623-822442C3 (40 parts) G/HSG, PROP-COUNTER-G438000 AND UP-1623-822442C3
Ref OEM Part # Part Name
- 26-816575A4 SEAL KIT, Gear Housing
1 1623-822442T79 GEAR HOUSING ASSEMBLY Comment: (BASIC-WHITE)
45 8M0226861 SHIFT CRANK
46 8M0235940 SPOOL ASSEMBLY
47 15-44491A1 SHIM SET
48 828830A2 ADAPTOR ASSEMBLY, Bearing
49 31-814653T BEARING ASSEMBLY, Needle Rollers
50 12-815481 THRUST WASHER
51 31-815480 BEARING, Thrust
52 43-828696T2 GEAR ASSEMBLY, Reverse
53 31-15844 BEARING ASSEMBLY, Roller
54 24-30893 SPRING
55 52-859340T SLIDING CLUTCH
56 17-8M0100263 PIN, Cross
57 17-828356 PIN, Detent
58 44-8M0140448 PROPELLER SHAFT
59 43-828695A1 GEAR SET, Forward/Pinion (12/21) (INCLUDES PINION)
60 23-1761526 SPACER SHIM, (.230)
61 31-815480 BEARING, Thrust
62 12-815481 THRUST WASHER
63 828831A3 ADAPTOR ASSEMBLY, Bearing
64 31-814653T BEARING ASSEMBLY, Needle Rollers
65 12-18448 THRUST WASHER
66 31-15842 BEARING, Thrust
67 8182911 RACE, Thrust
68 814605 KEEPER
69 25-8M0214920 O-RING
70 818290T8 CARRIER ASSEMBLY, Bearing
71 31-30956T BEARING, Needle
72 26-14077 SEAL, Oil (INSIDE)
73 26-8M0204670 SEAL (OUTSIDE)
74 14-18323 TAB WASHER
75 8M2011027 RETAINER
76 97-76214Q5 ANODE KIT Comment: (These replacement parts are not included with complete gear housing replacement)
77 10-8M0204686 SCREW, (.437-14 x 1.750) Comment: (These replacement parts are not included with complete gear housing replacement)
78 12-835467Q01 THRUST HUB Comment: (These replacement parts are not included with complete gear housing replacement)
79 13-423511 LOCKWASHER, Toothed Comment: (These replacement parts are not included with complete gear housing replacement)
80 12-31211Q03 WASHER, Splined Comment: (These replacement parts are not included with complete gear housing replacement)
81 14-816629Q TAB WASHER Comment: (These replacement parts are not included with complete gear housing replacement)
82 11-52707Q1 PROP NUT KIT, (.750-16) Comment: (These replacement parts are not included with complete gear housing replacement)
G/HSG, PROP-STD-0G437999 AND BELOW-1623-822442C2 (31 parts) G/HSG, PROP-STD-0G437999 AND BELOW-1623-822442C2
Ref OEM Part # Part Name
- 26-816575A5 SEAL KIT, Gear Housing
1 1623-822442A26 GEAR HOUSING ASSEMBLY, Basic - Gray
43 8M0226861 SHIFT CRANK
44 818349T1 SPOOL KIT
45 15-47397A1 SHIM SET
46 31-828439A2 BEARING ASSEMBLY, Tapered Roller Comment: USE WITH 1623-822442C3 CASTING
47 43-826181A2 GEAR SET, Forward Comment: (1.75:1 - 12/21) INCLUDES PINION GEAR
48 31-30895T BEARING, Needle
49 24-30893 SPRING
50 52-853594T SLIDING CLUTCH
51 17-78909 PIN, Detent
52 17-8M0100263 PIN, Cross
53 44-8M0140440 PROPELLER SHAFT
54 43-826182A1 GEAR ASSEMBLY, Reverse Comment: (1.75:1 - 12/21)
55 23-824108 SPACER
56 681001 RING, Thrust
57 30-88957T BEARING ASSEMBLY, Ball
58 25-8M0214920 O-RING
59 818763T11 CARRIER ASSEMBLY, Bearing
60 31-30956T BEARING, Needle
61 26-14077 SEAL, Oil (INSIDE)
62 26-8M0204670 SEAL (OUTSIDE)
63 14-18323 TAB WASHER
64 8M2011027 RETAINER
65 97-76214Q5 ANODE KIT Comment: THESE PARTS ARE NOT INCLUDED WITH COMPLETE GEAR HOUSING REPLACEMENT
66 10-8M0204686 SCREW, (.437-14 x 1.750) Comment: THESE PARTS ARE NOT INCLUDED WITH COMPLETE GEAR HOUSING REPLACEMENT
67 12-835467Q01 THRUST HUB Comment: THESE PARTS ARE NOT INCLUDED WITH COMPLETE GEAR HOUSING REPLACEMENT
68 13-423511 LOCKWASHER, Toothed Comment: THESE PARTS ARE NOT INCLUDED WITH COMPLETE GEAR HOUSING REPLACEMENT
69 12-31211Q03 WASHER, Splined Comment: THESE PARTS ARE NOT INCLUDED WITH COMPLETE GEAR HOUSING REPLACEMENT
70 14-816629Q TAB WASHER Comment: THESE PARTS ARE NOT INCLUDED WITH COMPLETE GEAR HOUSING REPLACEMENT
71 11-52707Q1 PROP NUT KIT, (.750-16) Comment: THESE PARTS ARE NOT INCLUDED WITH COMPLETE GEAR HOUSING REPLACEMENT
G/HSG, PROP-STD-0G438000 AND UP-1623-822442C3 (31 parts) G/HSG, PROP-STD-0G438000 AND UP-1623-822442C3
Ref OEM Part # Part Name
- 26-816575A4 SEAL KIT, Gear Housing
1 1623-822442T79 GEAR HOUSING ASSEMBLY Comment: (BASIC-WHITE)
45 8M0226861 SHIFT CRANK
46 8M0235940 SPOOL ASSEMBLY
47 15-44491A1 SHIM SET
48 43-878611A2 GEAR SET, Forward And Pinion (INCLUDES PINION GEAR) Comment: (1.87:1 - 15/28)
49 31-30894A1 BEARING SET, Cup And Cone
50 31-30895T BEARING, Needle
51 24-30893 SPRING
52 52-859340T SLIDING CLUTCH
53 17-828356 PIN, Detent
54 17-8M0100263 PIN, Cross
55 44-8M0140440 PROPELLER SHAFT
56 43-828171A1 GEAR, Reverse Comment: (1.87:1 - 15/28)
57 23-824108 SPACER
58 681001 RING, Thrust
59 30-88957T BEARING ASSEMBLY, Ball
60 25-8M0214920 O-RING
61 818763T11 CARRIER ASSEMBLY, Bearing
62 31-30956T BEARING, Needle
63 26-14077 SEAL, Oil (INSIDE)
64 26-8M0204670 SEAL (OUTSIDE)
65 14-18323 TAB WASHER
66 8M2011027 RETAINER
67 97-76214Q5 ANODE KIT Comment: (These replacement parts are not included with complete gear housing replacement)
68 10-8M0204686 SCREW, (.437-14 x 1.750) Comment: (These replacement parts are not included with complete gear housing replacement)
69 12-835467Q01 THRUST HUB Comment: (These replacement parts are not included with complete gear housing replacement)
70 13-423511 LOCKWASHER, Toothed Comment: (These replacement parts are not included with complete gear housing replacement)
71 12-31211Q03 WASHER, Splined Comment: (These replacement parts are not included with complete gear housing replacement)
72 14-816629Q TAB WASHER Comment: (These replacement parts are not included with complete gear housing replacement)
73 11-52707Q1 PROP NUT KIT, (.750-16) Comment: (These replacement parts are not included with complete gear housing replacement)
GEAR HOUSING CHART(S/N-0G437999 AND BELOW) (1 parts) GEAR HOUSING CHART(S/N-0G437999 AND BELOW)
Ref OEM Part # Part Name
- 45-826353A1 EXTENSION KIT, Driveshaft (XX-LONG-30 IN.) Comment: 13 SPLINES
GEAR HOUSING CHART(S/N-0G438000 AND UP) (1 parts) GEAR HOUSING CHART(S/N-0G438000 AND UP)
Ref OEM Part # Part Name
- 45-826353A1 EXTENSION KIT, Driveshaft (XX-LONG-30 IN.) Comment: 13 SPLINES
INSTRUMENTATION (19 parts) INSTRUMENTATION
Ref OEM Part # Part Name
1 87-19674A1 SWITCH ASSEMBLY, Lanyard
2 10-18303 SCREW, (.190-16 x 1.750) Stainless Steel
3 813679 ADAPTER
4 15920Q54 LANYARD ASSEMBLY
5 10-32866 SCREW, (#10-32 x 2.00) Stainless Steel
6 18321 CLAMP, Mounting
7 12-24676 WASHER, (.200 x .440 x .032)
8 10-32,11-68219 NUT, Stainless Steel
9 79146 RETAINER
10 54-816311T TIE STRAP, (8.00 Inches)
11 812497A2 DIODE ASSEMBLY
12 84-11149A2 CABLE ASSEMBLY, (6.00 Inches)
13 79-859698A1 WARNING GAUGE KIT
14 823486 CLAMP
15 817315 BEZEL
16 8-32,11-26419 NUT, Brass
17 88-15163 LAMP
18 88-79888 SOCKET, Light Bulb
19 84-827752A1 CABLE ASSEMBLY, (20.00 Feet)
MISCELLANEOUS INFORMATION (1 parts) MISCELLANEOUS INFORMATION
Ref OEM Part # Part Name
0 90-10128980 OWNERS MANUAL
OIL INJECTION COMPONENTS (34 parts) OIL INJECTION COMPONENTS
Ref OEM Part # Part Name
1 1270-818456A1 TANK ASSEMBLY, Oil Comment: SN# 0G437999 & Below
2 1270-830889A1 TANK ASSEMBLY, Oil Comment: SN# 0G438000 & Up
3 23-8260841 SPACER
4 10-58376 SCREW, (.164-18 x .375)
5 12-72761 WASHER, (.203 x .562 x .060) Stainless Steel
6 36-814449A3 CAP ASSEMBLY Comment: SN# 0G438000 & Up
7 27-42999T GASKET
8 87-12886A7 SWITCH ASSEMBLY Comment: SN# 0G438000 & Up
9 23-19064 BUSHING
10 25-825380001 GROMMET
11 12-56720 WASHER, (.330 x .750 x .060) Stainless Steel
12 10-81893435 SCREW, (M8 x 35)
13 32-8M0108355 HOSE, (57.00 Inches Bulk) (8 IN.) Comment: SN# 0G438000 & Up
14 22-8M0207780 FITTING
15 10-82104530 SCREW (30MM)
16 815536T1 PUMP, Oil
17 25-11379 O-RING
18 25-48462 O-RING, (.614 x .070)
19 23-817631 BEARING, Driven Gear
20 43-430204 GEAR, Driven
21 816974 BEARING, Thrust
22 10-82104520 SCREW, (M5 x 20)
23 54-816311T TIE STRAP, (8.00 Inches)
24 32-82381455 TUBING (8-1/2 IN.)
25 1257-87421 TANK
26 36-43298A2 CAP ASSEMBLY
27 25-11332 O-RING, (2.225 x .210)
28 816190A4 HOUSING ASSEMBLY, Adapter
29 25-11332 O-RING, (2.225 x .210)
30 32-99802 TUBE
31 32-99439 HOSE, (114.00 Inches)
32 12335A1 BRACKET KIT
33 12323A1 CORD/HOOK KIT
34 32-82381335 TUBING, (12.00 Inches Bulk) (7 IN.)
POWER TRIM COMPONENTS (36 parts) POWER TRIM COMPONENTS
Ref OEM Part # Part Name
- 855998A11 POWER TRIM ASSEMBLY, Complete
1 811604F MANIFOLD ASSEMBLY
2 22-56800 PLUG, Pipe (.0625-27)
3 880952A03 CYLINDER ASSEMBLY
4 823553T ROD KIT, Trim Piston
5 878239A02 GUIDE KIT
6 811607A1 REPAIR KIT
7 811610A1 CHECK VALVE KIT
8 1100-8M0021648 GUIDE ASSEMBLY
9 878414T01 PISTON/ROD ASSEMBLY, Power Trim Comment: (STBD.)
10 35-12184A1 TRIM FILTER ASSEMBLY
11 893929A01 MANUAL RELEASE ASSEMBLY
12 53-815949001 E RING
13 811612A3 O-RING KIT
14 811617T1 PUMP
15 19-811613 PLUG ASSEMBLY
16 10-4000327 SCREW, (M6 x 14)
17 12-4002315 WASHER
18 811611 COVER
19 828710 DRIVE JOINT
20 878265A4 MOTOR ASSEMBLY Comment: (BREAKDOWN ON POWER TRIM MOTOR )
21 10-811616 SCREW (SHORT)
22 8M0142997 SHAFT ASSEMBLY
23 22-56800 PLUG, Pipe (.0625-27)
24 17-878267 PIN, Groove
25 17-821539 PIN, Trilobe
26 99625002 SHAFT
27 97-818298Q1 ANODE KIT
28 10-8M0204707 SCREW, (M6 x 25)
29 12-8M0204649 WASHER, (.281 x .500 x .060) Stainless Steel
30 10-4000377 SCREW, (M10 x 30)
31 12-4002319 WASHER
32 54-22740 CLIP
33 10-69079 SCREW, (#10-16 x .440)
34 10-878609 SCREW, (#10-16 x .600)
35 8M0084613 C WASHER
Power Trim Motor (4 parts) Power Trim Motor
Ref OEM Part # Part Name
- 878265A4 MOTOR ASSEMBLY
1 828714A1 BRUSH AND SEAL KIT
2 828713T1 ARMATURE KIT
3 828715A1 END FRAME (COMPLETE)
REED BLOCK/FLYWHEEL COVER (17 parts) REED BLOCK/FLYWHEEL COVER
Ref OEM Part # Part Name
- 809794A97 POWERHEAD ASSEMBLY
1 54-49542 CLAMP
2 27-825815 GASKET
3 10-82130012 SCREW, (M6 x 12)
4 825178T5 ADAPTOR PLATE Comment: SN# 0G437999 & Below
5 54-67015 CLAMP Comment: SN# 0G303045 & Below
6 827507 RETAINER Comment: SN# 0G303046 & Up
7 10-82130025 SCREW, (M6 x 25)
8 27-8141951 GASKET
9 828623T6 REED BLOCK Comment: 1 PIECE SN# 0G438000 & Up
10 816032T1 REED BLOCK Comment: SN# 0G338133 & Below
11 34-816107A1 REED SET Comment: SN# 0G437999 & Below
12 8161082 CLAMP, Reed Comment: SN# 0G338134 THRU 0G437999
13 10-8211108 SCREW (M4 X .7) Comment: SN# 0G338134 THRU 0B437999
14 10-4007420 SCREW, (M6 x 20)
15 825832 FLYWHEEL COVER
16 25-8M0153609 GROMMET
STARTER MOTOR (17 parts) STARTER MOTOR
Ref OEM Part # Part Name
1 50-898265009 STARTER MOTOR ASSEMBLY
2 8236392 DRIVE CAP
3 10-823641 THRU BOLT
4 823640T DRIVE KIT
5 13310T1 DRIVE
6 823638 ARMATURE
7 898265016 BRUSH/SPRING KIT
8 898265014 HOLDER
9 8119011 CAP, Commutator
10 F15158 SCREW
11 37-8272822 DECAL, Warning
12 13-26992 LOCKWASHER, (.250) Stainless Steel
13 11-94330 NUT, (.250-20) Brass
14 13-26992 LOCKWASHER, (.250) Stainless Steel
15 11-20890 NUT, (.250-20)
16 10-81893450 SCREW, (M8 x 50)
17 23-824921 SPACER
SWIVEL BRACKET AND STEERING ARM (31 parts) SWIVEL BRACKET AND STEERING ARM
Ref OEM Part # Part Name
1 1499-8710A23 SWIVEL BRACKET Comment: (WHITE)
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 826364F3 YOKE, Bottom Comment: (WHITE-XL/XXL-STAINLESS STEEL)
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 8M0074846 SENDER ASSEMBLY, Trim
16 10-852368 SCREW, (#10-24 x .750)
17 10,13-26996 LOCKWASHER, Stainless Steel
18 12-89302 WASHER, (.203 x .406 x .040)
19 17-8M0132731 SWIVEL PIN ASSEMBLY Comment: (WHITE-XL/XXL)
20 10-8M0141069 SCREW, (M12 x 190)
21 824998001 BUMPER
22 8163851 MOUNT, Upper
23 12-8154371 WASHER
24 12-815436 WASHER
25 11-896963 NUT, (M12)
26 8M0036783 CLAMP
27 10-81893435 SCREW, (M8 x 35)
28 92876A12 LINK ASSEMBLY, Steering
29 10-849838 SCREW, (.375-24 x 1.25)
30 11-8M0204726 NUT, (.375-24)
31 12-37828 WASHER, (.390 x .625 x .062) Stainless Steel
TOOLS, SPECIAL (1 parts) TOOLS, SPECIAL
Ref OEM Part # Part Name
- 91-821571A1 GUIDE TOOL, Water Pump Alignment Pins Comment: GEAR HOUSING
TOP COWL (17 parts) TOP COWL
Ref OEM Part # Part Name
1 4001-814277T25 TOP COWL ASSEMBLY Comment: (WHITE)
2 821256F6 INLET, Air Comment: (WHITE)
3 10-82130016 SCREW, (M6 x 16)
4 821250A1 SOUND BLANKET KIT
5 19-823865 CAP PLUG
6 821248 REAR LATCH HOOK
7 53-8237951 RING, Retaining
8 8M0207770 ROLLER
9 12-8M0204649 WASHER, (.281 x .500 x .060) Stainless Steel
10 11-401196 NUT, (M6)
11 8M0036792 BRACKET, Front
12 815477 BUMPER, Latch
13 8155381 PIN, Roll
14 11-401196 NUT, (M6)
15 12-8M0204649 WASHER, (.281 x .500 x .060) Stainless Steel
16 826639T COVER
17 47341A11 ROPE AND HANDLE KIT
TRANSOM BRACKETS(S/N-0G589999 AND BELOW) (23 parts) TRANSOM BRACKETS(S/N-0G589999 AND BELOW)
Ref OEM Part # Part Name
1 3401-8718F11 BRACKET, Transom Comment: (STBD-WHITE)
2 3400-8716A11 BRACKET ASSEMBLY, Transom Comment: (PORT-WHITE)
3 22-8M0169588 FITTING, Grease (PORT)
4 826125A1 TILT TUBE
5 11-826135 NUT, (1.00-14) Brass/Nickel Plate
6 25-45711 O-RING, (.612 x .103)
7 13-88750 WASHER
8 11-826164 NUT, (.875-14)
9 10-96930A1 BOLT ASSEMBLY
10 11-23161 NUT, (.375-24)
11 88238A10 CABLE ASSEMBLY, Ground
12 10-41508 SCREW, (.250-20 x .500) Stainless Steel
13 10-8M0149747 SCREW, (.500-20 x 4.500)
14 12-8M0204648 WASHER, (1.5 x 3.05 x 0.13) Stainless Steel
15 11-91962 NUT, (.500-20)
16 8M0115104 LEVER ASSEMBLY
17 13-99611 WAVE WASHER
18 23-65830 NYLINER
19 814207 STOP
20 99633 KNOB
21 17-99615 PIN, Groove
22 24-99622 SPRING
23 17-99604 PIN, Groove
TRANSOM BRACKETS(S/N-0G590000 AND UP) (18 parts) TRANSOM BRACKETS(S/N-0G590000 AND UP)
Ref OEM Part # Part Name
1 3426-828334T03 BRACKET ASSEMBLY, Transom-Starboard
2 3425-828333T08 BRACKET ASSEMBLY, Transom-Port
3 22-8M0169588 FITTING, Grease (PORT)
4 826125A1 TILT TUBE
5 11-826135 NUT, (1.00-14) Brass/Nickel Plate
6 25-45711 O-RING, (.612 x .103)
7 13-88750 WASHER
8 11-826164 NUT, (.875-14)
9 10-8M0149747 SCREW, (.500-20 x 4.500)
10 12-8M0204648 WASHER, (1.5 x 3.05 x 0.13) Stainless Steel
11 11-91962 NUT, (.500-20)
12 8M0115104 LEVER ASSEMBLY
13 24-830899 SPRING, Tension
14 23-65830 NYLINER
15 24-830900 SPRING, Compression
16 99633 KNOB
17 17-99615 PIN, Groove
18 17-893709 PIN

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.

  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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