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Mercury Marine [Updated: Apr. 10, 2026]
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Sterndrive
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Engines - Diesel
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4.2L L6 VM
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D254 TURBO AC (BRAVO) VM 254 I/L6
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1990-1993 [0C849461 THRU 0D554731] - Cat.# 90-81841193
1990-1993 [0C849461 THRU 0D554731] - Cat.# 90-81841193
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AIR CLEANER (NEW DESIGN)
schematic
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AIR CLEANER (OLD DESIGN)
schematic
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AIR COOLER
schematic
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ALTERNATOR
schematic
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CAMSHAFT
schematic
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CONNECTING ROD AND PISTON
schematic
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COOLANT RECOVERY
schematic
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COOLING WATER TANK
schematic
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CRANKSHAFT
schematic
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CYLINDER HEAD
schematic
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ENGINE/CYLINDER BLOCK
schematic
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EXHAUST MANIFOLD
schematic
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FLYWHEEL HOUSING (STERN DRIVE)
schematic
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FLYWHEEL HOUSING/DRIVE PLATE (INBOARD)
schematic
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FRONT COVER
schematic
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FUEL FILTER
schematic
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INJECTION NOZZLE/LINES
schematic
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INJECTION PUMP
schematic
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INSTRUMENT PANEL
schematic
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MANIFOLD STRIP
schematic
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MERCATHODE (STERN DRIVE)
schematic
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MISCELLANEOUS PARTS AND ACCESSORIES
schematic
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MOTOR HARNESS
schematic
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OIL COOLER AND OIL FILTER (INBOARD)
schematic
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OIL COOLER AND OIL FILTER (STERN DRIVE)
schematic
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OIL PAN
schematic
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POWER STEERING COMPONENTS (STERN DRIVE)
schematic
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POWER STEERING CYLINDER (STERN DRIVE)
schematic
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ROCKER ARM AND OIL LINES
schematic
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ROCKER COVER
schematic
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SEAWATER PUMP (INBOARD)
schematic
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SEAWATER PUMP (STERN DRIVE)
schematic
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SHIFT BRACKET (STERN DRIVE)
schematic
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STARTER MOTOR
schematic
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TRANSMISSION (DIRECT DRIVE) (INBOARD)
schematic
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TRANSMISSION (DIRECT DRIVE) (INBOARD)
schematic
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TRANSMISSION (V-DRIVE) (INBOARD)
schematic
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TRANSMISSION (V-DRIVE) (INBOARD)
schematic
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TRANSMISSION AND RELATED PARTS (INBOARD)
schematic
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TRANSMISSION MOUNTING (INBOARD)
schematic
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TURBO CHARGER/EXHAUST ELBOW (INBOARD)
schematic
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TURBO CHARGER/EXHAUST ELBOW (STERN DRIVE)
schematic
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WATER PICK-UP KIT (OLD DESIGN) (STERN DRIVE)
schematic
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WATER PUMP
schematic