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425 GM 454 V8 1990-1992 - Serial 0A398941 Thru 0D937011 - Thermostat Housing (420)
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 | Superseded From | Special Notes |
| 1 | 87290A4 | HOUSING ASSEMBLY, Thermostat | 1 | SN# 0A398941 THRU 0C576119 | |||||
| 1 | 90736A18 | HOUSING ASSEMBLY, Thermostat | 1 | SN# 0C576120 & Up | |||||
| 2 | 23-47511 | SLEEVE, Thermostat Housing | 1 | ||||||
| 3 | 22-32803 | PLUG, Pipe (.375-18) Brass | 2 | ||||||
| 4 | 27-530451 | GASKET, Thermostat Housing | 1 | 2 | |||||
| 5 | 807252T1 | THERMOSTAT, 140 Degrees | 1 | 8052731 | |||||
| 6 | 27-47510 | GASKET, Thermostat | 1 | 2 | |||||
| 7 | 23-47508T | SLEEVE | 1 | 23-47508 | |||||
| 8 | 27-488181 | GASKET, Thermostat Cover | 1 | 2 | |||||
| 9 | 47441A1 | COVER, Thermostat | 1 | SN# 0A398941 THRU 0C576119 | |||||
| 9 | 8M0061068 | COVER, Thermostat | 1 | 47442A1 | SN# 0C576120 & Up | ||||
| 10 | 10-60410 | SCREW, (.375-16 x 4.250) | 2 | ||||||
| 11 | 12-20553 | WASHER, (.406 x .734 x .063) | 2 | ||||||
| 12 | 22-41622 | PLUG, (3/4-14), Pipe | 1 | 22-33198A1 | |||||
| 12A | 22-98477A2 | VALVE ASSEMBLY | 1 | ||||||
| 12B | 32-8M0062614 | HOSE, (48.00 Inches Bulk), Cut As Required | 2 | 32-3322070 | |||||
| 13 | 32-8M0062665 | HOSE, (48.00 Inches Bulk), Cut As Required - Water Pump To Oil Cooler | 1 | 32-5346170 | |||||
| 14 | 54-180766 | CLAMP, Worm Gear | 8 | ||||||
| 15 | 32-12817 | HOSE, Oil Cooler To Oil Cooler | 1 | ||||||
| 16 | 32-848956 | HOSE, Oil Cooler To Tube | 1 | 32-12818 | |||||
| 17 | 22-13177 | TUBE, Water Hose | 1 | ||||||
| 18 | 32-896998 | HOSE, Molded, Oil Cooler To Thermostat Housing | 1 | 32-64346 | |||||
| 19 | 32-897181 | HOSE, Thermostat Housing To Water Pump | 2 | ||||||
| 20 | 54-180769 | CLAMP, Worm Gear | 2 | This Part is No Longer Available | |||||
| 21 | 32-897491 | HOSE, Port - Thermostat Cover To Exhaust Manifold | 1 | ||||||
| 22 | 32-897301 | HOSE, Starboard - Thermostat Cover To Exhaust Manifold | 1 | ||||||
| 23 | 54-180764 | CLAMP, Worm Gear | 4 | ||||||
| - | 27-13218A1 | GASKET SET | 1 | SN# 0A398941 THRU 0D725499 | |||||
| - | 27-808730A98 | GASKET SET | 1 | 27-808730A92 | This Part is No Longer Available SN# 0D725500 THRU 0D937011 |