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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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3.0L (181 CU IN) L4 GM
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3.0L GM 181 I/L4
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1987-1989 [0B450801 THRU 0C856558] - Cat.# 90-41261
1987-1989 [0B450801 THRU 0C856558] - Cat.# 90-41261
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ALTERNATOR (DELCO-REMY #1103113)
schematic
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ALTERNATOR (DELCO-REMY #1105064)
schematic
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ALTERNATOR (MOTOROLA #8EM2003KA)
schematic
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ALTERNATOR (MOTOROLA #8MR2039K)
schematic
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Alternator (Mando)
schematic
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CARBURETOR (MERCARB)
schematic
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CARBURETOR (ROCHESTER)
schematic
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CONVENTIONAL IGNITION COMPONENTS
schematic
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CRANKSHAFT, CAMSHAFT, WATER PUMP (120-2.5L/153 CID)
schematic
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CRANKSHAFT, CAMSHAFT, WATER PUMP (140-3.0L/181 CID)
schematic
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CYLINDER BLOCK, PISTON AND BEARINGS (120-2.5L/153 CID)
schematic
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CYLINDER BLOCK, PISTON AND BEARINGS (140-3.0L/181 CID)
schematic
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CYLINDER HEAD AND ROCKER COVER (120-2.5L/153 CID)
schematic
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CYLINDER HEAD AND ROCKER COVER (140-3.0L/181 CID)
schematic
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DIGITAL IGNITION COMPONENTS
schematic
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DRIVESHAFT EXTENSION COMPONENTS JACKSHAFT MODELS
schematic
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DRIVESHAFT EXTENSION COMPONENTS JACKSHAFT MODELS
schematic
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DRIVESHAFT EXTENSION COMPONENTS JACKSHAFT MODELS
schematic
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ENGINE MOUNTING (FRONT)
schematic
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EXHAUST MANIFOLD (USE W/1 PIECE EXHAUST ELBOW)
schematic
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EXHAUST MANIFOLD USE W/2 PIECE EXHAUST ELBOW
schematic
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EXHAUST SYSTEM (NEW DESIGN)
schematic
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EXHAUST SYSTEM (OLD DESIGN)
schematic
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FLYWHEEL HOUSING
schematic
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FUEL PUMP AND CARBURETOR (NEW DESIGN)
schematic
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FUEL PUMP AND CARBURETOR (OLD DESIGN)
schematic
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MISCELLANEOUS PARTS\ACCESSORIES
schematic
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OIL PAN AND OIL PUMP (120-2.5L/153 CID)
schematic
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OIL PAN AND OIL PUMP (140-3.0L/181 CID)
schematic
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POWER STEERING PUMP ASSEMBLY
schematic
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Power Steering Pump and Cooler Kit (71333A5)
schematic
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SHIFT COMPONENTS (NEW DESIGN WITH SPRING GUIDE)
schematic
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SHIFT COMPONENTS (NEW DESIGN)
schematic
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SHIFT COMPONENTS (OLD DESIGN)
schematic
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STARTER MOTOR
schematic
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STARTER MOTOR AND ALTERNATOR
schematic
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THROTTLE COMPONENTS (OLD DESIGN)
schematic
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WIRING HARNESS AND ELECTRICAL COMPONENTS
schematic