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Mercury Marine [Updated: Apr. 10, 2026]
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Inboard and TowSports
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Gas
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5.0L (305 CU IN) V8 GM
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230 MIE (4 BBL.) GM 305 V-8
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1987-1995 [0B522506 THRU 0B788151] - Cat.# 90-17765
1987-1995 [0B522506 THRU 0B788151] - Cat.# 90-17765
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Alternator (55 AMPS) (Motorola #8MR2039K)
schematic
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Alternator (55 AMPS) (Prestolite #8EM2003KA)
schematic
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Alternator (Mando)
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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Exhaust Manifold and 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 (Design I)
schematic
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Intake Manifold and Front Cover (Design II)
schematic
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Oil Filter and Adaptor
schematic
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Oil Pan and Oil Pump
schematic
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Sea Water Pump
schematic
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Service/Support Material
schematic
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Starter Motor
schematic
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Starter and Alternator
schematic
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Thermostat Housing (Standard Cooling)(Design I)
schematic
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Thermostat Housing (Standard Cooling)(Design II)
schematic
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Transmission and Engine Mounting (In-Line)
schematic
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Transmission and Engine Mounting (V-Drive)
schematic
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Transmission and Related Parts (In-Line)
schematic
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Transmission and Related Parts (V-Drive)
schematic
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Wiring Harness, Electrical and Ignition
schematic