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420 GM 454 V8 1987-1989 - Serial 0A398941 Thru 0B622418 - Seawater Pump Assembly (0D725500 Thru 0D937011)
Section Drawing: (Hover or click to view larger)
Other Sub-Sections:
- Alternator (Mando AC-155603)
- Alternator (Mando AR-150)
- Alternator (Motorola 8MR2039K)
- Alternator (Prestolite 8EM2003KA)
- Audio Warning System
- Carburetor And Linkage
- Crankshaft - Pistons - Connecting Rods
- Cylinder Block And Camshaft
- Cylinder Head And Rocker Cover
- Distributor And Ignition Components
- Driveshaft And Tailstock
- Electrical Components (0A398941 Thru 0D763854)
- Electrical Components (0D763855 Thru 0D937011)
- Exhaust Cover (420)
- Exhaust Manifold - Elbow (420 GIL System)
- Exhaust Manifold - Elbow (425 GIL System)
- Exhaust Manifold - Elbow (Mercruiser System)
- Flywheel Housing
- Fuel Pump And Fuel Filter (0A398941 Thru 0D725499)
- Fuel Pump And Fuel Filter (0D763855 Thru 0D937011)
- Intake Manifold And Front Cover
- Mount Plates (Engine)
- Oil Cooler (0A398941 Thru 0D725499)
- Oil Cooler (0D725500 Thru 0D937011)
- Oil Pan And Oil Pump (0A398941 Thru 0D725499)
- Oil Pan And Oil Pump (0D725500 Thru 0D937011)
- Power Steering Components
- Power Steering Cylinder Assembly
- Seawater Pump Assembly (0A398941 Thru 0D725499)
- Seawater Pump Assembly (0D725500 Thru 0D937011)
- Starter And Alternator Mounting
- Starter Assembly
- Thermostat Housing (420)
- Thermostat Housing (425)
- Transmission And Related Parts
- Transmission And Shift Linkage
- Transmission And Tailstock
| Ref. | OEM Part # | Hardin # | Mallory # | GLM # | Other # | Description | Num Req. | Superseded From | Special Notes |
| 2 | 46-72774A40 | BODY ASSEMBLY, Sea Water - Complete | 1 | This Part is No Longer Available | |||||
| 3 | 821707T1 | COVER, Seawater Pump | 1 | 8217071 | |||||
| 4 | 10-99347 | SCREW, (.312-18 x 3.75) | 5 | ||||||
| 5 | 12-20084 | WASHER, (.328 x .562 x .062) | 5 | ||||||
| 6 | 27-8052151 | GASKET, Cover To Outer Wear Plate | 1 | ||||||
| 7 | 94916 | WEAR PLATE, Outer | 1 | ||||||
| 8 | 27-94914 | GASKET, Body To Wear Plate | 2 | ||||||
| 9 | 19-59504 | PLUG, Impeller | 1 | ||||||
| 10 | 47-59362T1 | 625-4011 | 676-9-45375 | 700-89740 | IMPELLER | 1 | 47-593621 | ||
| 11 | 94576 | WEAR PLATE, Inner | 1 | ||||||
| 12 | 25-94288 | QUAD RING | 1 | ||||||
| 13 | 818367A1 | HOUSING ASSEMBLY, Seawater Pump | 1 | ||||||
| 14 | 26-90562 | 676-9-76107 | 700-85080 | SEAL, (1.254 x .312) | 2 | ||||
| 15 | 818366A1 | SHAFT KIT | 1 | ||||||
| 16 | 818745A1 | RING KIT | 1 | ||||||
| 17 | 30-72961 | BEARING, Ball | 2 | ||||||
| 18 | 53-23720 | RING, Retaining | 1 | ||||||
| 19 | 26-806930 | SEAL, Seawater Pump Shaft | 1 | 26-821104 | |||||
| 20 | 818365T | PULLEY | 1 | ||||||
| 21 | 13-39107 | 700-21496 | LOCKWASHER, (.312) | 1 | |||||
| 22 | 11-21908 | NUT, (.312-18) Cad Plated | 1 | ||||||
| 23 | 10-79953Q04 | SCREW KIT | 1 | 10-28634A1 | |||||
| 24 | 25-805726 | O-RING, Rubber | 1 | ||||||
| 25 | 818368A1 | BRACKET KIT, Seawater Pump Mount | 1 | 823185A2 | |||||
| 26 | 10-91903 | SCREW, (.437-14 x 1.750) | 3 | ||||||
| 27 | 10-98261 | SCREW, (.375-16 x .750) | 2 | ||||||
| 28 | 13-35048 | LOCKWASHER, (.375) | 2 | ||||||
| 29 | 10-47461 | SCREW, (.437-14 x 1.00) | 1 | ||||||
| 30 | 43-8183812 | PINION/STUD | 1 | 43-8183811 | |||||
| 31 | 865193 | BUSHING | 1 | 818380 | |||||
| 32 | 8M6500024 | PULLEY | 1 | 818382 | |||||
| 33 | 11-859135 | NUT, (.437-20) | 1 | 11-817618 | |||||
| 35 | 57-69143Q | V BELT | 1 | 57-69143T | |||||
| 36 | 12-27025 | WASHER | 1 | ||||||
| 37 | 13-32993 | LOCKWASHER, (.437) | 1 | ||||||
| 39 | 818379T | BRACKET, Idler | 1 | ||||||
| 40 | 13-32993 | LOCKWASHER, (.437) | 3 |