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7.4L Bravo (Gen 4) GM 454 V-8 1988-1991 - Serial 0B771113 Thru 0D603117 - Sea Water Pump
Section Drawing: (Hover or click to view larger)
Other Sub-Sections:
- Alternator (Mando)
- Alternator (Motorola #8MR2039K)
- Alternator (Prestolite #8EM2003KA)
- Audio Warning System
- Carburetor
- Carburetor and Linkage
- Crankshaft, Pistons and Connecting Rods
- Cylinder Block and Camshaft
- Cylinder Head and Rocker / Valve Cover
- Distributor and Ignition Components
- Engine Mounting (Cast Bracket)
- Exhaust Manifold and Elbow / Riser (Cast Iron)
- Exhaust Plate
- Exhaust System
- Flame Arrestor (New Design)
- Flame Arrestor (Old Design)
- Flywheel Housing
- Fuel Pump and Fuel Filter
- Intake Manifold and Front Cover
- Oil Filter and Adapter
- Oil Pan & Oil Pump (Cast Pan)
- Oil Pan & Oil Pump (Stamped Pan)
- Power Steering Components
- Sea Water Pump
- Shift Bracket
- Starter and Alternator
- Thermostat Housing (New Design)
- Thermostat Housing (Old Design)
- Wire Harness, Electrical and Ignition
| Special Note: | 620-4109 and (2) | 540-222151 Replaces Entire Assembly, minus belt & brace. | |||||||||
| Ref. | OEM Part # | Hardin # | Mallory # | GLM # | Other # | Description | Num Req. | Superceded From | Special Notes | ||
| 1 | 46-807151A12 | 620-4110, (2) | 540-222151 | 700-12093 | PUMP ASSEMBLY, Sea Water - Complete | 1 | 46-72774A50 | ||||
| 2 | 46-72774A40 | BODY ASSEMBLY, Sea Water - Complete | 1 | ||||||||
| 3 | 87631A4 | COVER, WATER PUMP | 1 | 87631A1 | |||||||
| 4 | 10-99347 | SCREW, (.312-18 x 3.75) | 3 | ||||||||
| 4 | 10-73275 | SCREW, (.312-18 x 2.88), WATER PUMP | 2 | ||||||||
| 5 | 12-20084 | WASHER, (.328 x .562 x .062), COVER SCREW | 5 | ||||||||
| 6 | 27-8052151 | GASKET, COVER TO OUTER WEAR PLATE | 1 | 27-94915 | |||||||
| 7 | 94916 | WEAR PLATE, OUTER | 1 | ||||||||
| 8 | 27-94914 | 700-32730 | GASKET, BODY TO WEAR PLATE | 2 | |||||||
| 9 | 19-59504 | PLUG, IMPELLER | 1 | ||||||||
| 10 | 47-59362T1 | 625-4011 | 676-9-45375 | 700-89740 | IMPELLER | 1 | 47-59362 | ||||
| 11 | 8M0032837 | KEY, IMPELLER DRIVE | 1 | 28-56662 | |||||||
| 12 | 94576 | WEAR PLATE, INNER | 1 | ||||||||
| 13 | 25-94288 | QUAD RING, PUMP HOUSING | 1 | ||||||||
| 14 | 46-94913A2 | HOUSING ASSEMBLY, Water Pump | 1 | ||||||||
| 15 | 26-90562 | 676-9-76107 | 700-85080 | SEAL, (1.254 x .312), WATER PUMP SHAFT | 2 | ||||||
| 16 | 30-72961 | BEARING, Ball, WATER PUMP SHAFT | 2 | ||||||||
| 17 | 59501A1 | SHAFT, WATER PUMP | 1 | ||||||||
| 18 | 53-23720 | RING, Retaining, BALL BEARING RETAINING | 1 | ||||||||
| 19 | 26-72785 | SEAL, WATER PUMP SHAFT | 1 | ||||||||
| 20 | 47530 | 421-205M |
HUB, WATER PUMP PULLEY | 1 | |||||||
| 21 | 52822T | 625-4024 |
PULLEY, WATER PUMP (CAST) | 1 | |||||||
| 22 | 10-47277 | SCREW, (.312-24 x .750), PULLEY | 4 | ||||||||
| 23 | 13-39107 | 700-21496 | LOCKWASHER, (.312-24), PULLEY SCREW | 4 | |||||||
| 24 | 22-328022 | PLUG, Pipe (.125-27) (FOR WATER PUMP BODY) | 1 | 22-32802 | |||||||
| 25 | 57-13457Q | BELT, WATER PUMP (30") | 1 | 57-13457T | |||||||
| 26 | 15295T | BRACKET, WATER PUMP (STAMPED) | 1 | ||||||||
| 27 | 10-47461 | SCREW, (.437-14 x 1.00), WATER PUMP BRACKET | 1 | ||||||||
| 28 | 10-17965 | SCREW, (.437-14 x .70), WATER PUMP BRACKET | 1 | ||||||||
| 29 | 13-32993 | LOCKWASHER, (.437), BRACKET SCREW | 1 | ||||||||
| 30 | 12-27025 | WASHER, BRACKET SCREW | 1 | ||||||||
| 32 | 13-39107 | 700-21496 | LOCKWASHER, (.312-24) | 3 | |||||||
| 33 | 11-21908 | NUT, (.312-18) Cad Plated | 3 | ||||||||
| 34 | 15751T | BRACE, WATER PUMP | 1 | ||||||||
| 35 | 10-47461 | SCREW, (.437-14 x 1.00), BRACE TO ENGINE | 1 | ||||||||
| 36 | 13-32993 | LOCKWASHER, (.437), BRACE SCREW | 1 | ||||||||
| 37 | 12-74758 | WASHER, BRACE SCREW | 1 | 12-30315 | |||||||
| 38 | 10-35786 | SCREW, (.375-24 x 1.00), WATER PUMP BRACE | 1 | ||||||||
| 39 | 13-35048 | LOCKWASHER, (.375), BRACE SCREW | 1 | ||||||||
| 40 | 11-46335 | NUT, (.375-24), BRACE SCREW | 1 | ||||||||