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Mercury Marine [Updated: Apr. 10, 2026]
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7.4L (454 CU IN) V8 GM
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330 GM 454 V-8
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1982-1987 [6083145 THRU 0B816540] - Cat.# 90-43075
1982-1987 [6083145 THRU 0B816540] - Cat.# 90-43075
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Air Silencer
schematic
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Alternator (Mando)
schematic
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Alternator (Motorola)
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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Closed Cooling System
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 Exhaust Elbow
schematic
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Exhaust System (Use With 15 Degree Exhaust Elbow)
schematic
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Exhaust System (Use With 7 Degree Exhaust Elbow)
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 (Cast Crankshaft Pulley)
schematic
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Intake Manifold and Front Cover (Stamped Crankshaft Pulley)
schematic
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Oil Filter and Adapter
schematic
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Oil Pan and Oil Pump
schematic
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Power Steering Components
schematic
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Sea Water Pump (Pump Mounting Bracket is Cast Aluminum)
schematic
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Sea Water Pump (Pump Mounting Bracket is Stamped Steel)
schematic
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Shift Linkage
schematic
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Starter Motor Assembly
schematic
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Starter and Alternator
schematic
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Thermostat Housing (Standard Cooling)
schematic
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Transmission and Tailstock
schematic
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Wiring Harness, Electrical and Ignition
schematic