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Mercury Marine [Updated: Apr. 10, 2026]
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Gas
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7.4L (454 CU IN) V8 GM
/
454 MAG. MPI HORIZON (GEN. VI) GM 454 V-8
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[0L086050 THRU 0L674000] - Cat.# 90-80257999
[0L086050 THRU 0L674000] - Cat.# 90-80257999
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Alternator (Mando)
schematic
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Alternator and Bracket
schematic
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Closed Cooling System (454 MAG MPI Horizon)
schematic
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Closed Cooling System (8.2L MPI)
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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Electrical Components
schematic
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Exhaust Manifold and Exhaust Elbow
schematic
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Flywheel Housing
schematic
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Fuel Filter
schematic
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Fuel Pump and Fuel Cooler
schematic
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Fuel Rail Assembly
schematic
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Intake Manifold and Intake Plenum
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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Senders and Harness Bracket
schematic
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Service/Support Material
schematic
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Standard Cooling System (8.2L MPI)
schematic
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Starter Motor
schematic
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Transmission (Down Angle)(Hurth 630)
schematic
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Transmission (Down Angle)(Hurth 630)
schematic
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Transmission (V-Drive) (Hurth 630)
schematic
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Transmission (V-Drive)(Hurth 630)
schematic
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Transmission and Engine Mounting (Borg Warner 5000)
schematic
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Transmission and Engine Mounting (Borg Warner 72)
schematic
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Transmission and Engine Mounting (Hurth 630)
schematic
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Transmission and Related Parts (Borg Warner 5000)
schematic
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Transmission and Related Parts (Borg Warner 72)
schematic
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Transmission and Related Parts (Hurth 630)
schematic
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Water Pump and Front Cover
schematic
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Wiring Harness (EFI)
schematic
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Wiring Harness (Engine)
schematic