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Mercury Marine [Updated: Apr. 10, 2026]
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Sterndrive
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Engines - Gas
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7.4L (454 CU IN) V8 GM
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425 GM 454 V-8
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1990-1992 [0A398941 THRU 0D937011] - USA - Cat.# 90-16286
1990-1992 [0A398941 THRU 0D937011] - USA - Cat.# 90-16286
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Alternator (Mando # AC-155603)
schematic
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Alternator (Mando # AR-150)
schematic
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Alternator (Motorola # 8MR2039K)
schematic
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Alternator (Prestolite # 8EM2003KA)
schematic
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Audio Warning System
schematic
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Carburetor And Linkage
schematic
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Crankshaft / Pistons / Connecting Rods
schematic
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Cylinder Block And Camshaft
schematic
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Cylinder Head And Rocker Cover
schematic
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Distributor And Ignition Components
schematic
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Driveshaft And Tailstock
schematic
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Electrical Components (Serial # 0A398941 Thru 0D763854)
schematic
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Electrical Components (Serial # 0D763855 Thru 0D937011)
schematic
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Exhaust Cover (420)
schematic
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Exhaust Manifold / Elbow (420 GIL System)
schematic
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Exhaust Manifold / Elbow (425 GIL System)
schematic
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Exhaust Manifold / Elbow (Mercruiser System)
schematic
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Flywheel Housing
schematic
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Fuel Pump And Fuel Filter (Serial # 0A398941 Thru 0D725499)
schematic
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Fuel Pump And Fuel Filter (Serial # 0D763855 Thru 0D937011)
schematic
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Intake Manifold And Front Cover
schematic
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Mount Plates (Engine)
schematic
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Oil Cooler (Serial # 0A398941 Thru 0D725499)
schematic
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Oil Cooler (Serial # 0D725500 Thru 0D937011)
schematic
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Oil Pan And Oil Pump (Serial # 0A398941 Thru 0D725499)
schematic
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Oil Pan And Oil Pump (Serial # 0D725500 Thru 0D937011)
schematic
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Power Steering Components
schematic
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Power Steering Cylinder Assembly
schematic
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Seawater Pump Assembly (Serial # 0A398941 Thru 0D725499)
schematic
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Seawater Pump Assembly (Serial # 0D725500 Thru 0D937011)
schematic
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Starter And Alternator Mounting
schematic
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Starter Assembly (50-17251A3)
schematic
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Thermostat Housing (420)
schematic
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Thermostat Housing (425)
schematic
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Transmission And Related Parts
schematic
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Transmission And Shift Linkage
schematic
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Transmission And Tailstock
schematic