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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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454 MAG. ALPHA GM 454 V-8
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1986-1988 [0A631894 THRU 0B785148] - Belgium - Cat.# 90-14296
1986-1988 [0A631894 THRU 0B785148] - Belgium - Cat.# 90-14296
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Alternator (MANDO)
schematic
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Alternator MOTOROLA #8EM20039K
schematic
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Alternator MOTOROLA #8MR2039K
schematic
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Audio Warning System
schematic
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Carburetor
schematic
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Carburetor and Linkage
schematic
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Crankshaft PISTONS AND 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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Engine Mounting (CAST BRACKET)
schematic
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Engine Mounting (STAMPED BRACKET)
schematic
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Exhaust Manifold and Elbow
schematic
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Exhaust System
schematic
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Flame Arrestor (NEW DESIGN)
schematic
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Flame Arrestor (OLD DESIGN)
schematic
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Flywheel Housing
schematic
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Fuel Pump and Fuel Filter
schematic
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Intake Manifold and Front Cover
schematic
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Oil Filter and Adaptor
schematic
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Oil Pan and Oil Pump
schematic
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Power Steering Components
schematic
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Service/Support Material
schematic
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Shift Bracket (NEW DESIGN WITH SPRING GUIDE)
schematic
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Shift Bracket (NEW DESIGN)
schematic
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Shift Bracket (OLD DESIGN)
schematic
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Starter Motor
schematic
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Starter and Alternator
schematic
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Thermostat Housing (NEW DESIGN)
schematic
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Thermostat Housing (OLD DESIGN)
schematic
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Wiring Harness ELECTRICAL AND IGNITION
schematic