- Specs Summary
- Power Range
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- 6 Brick Z-Flow - Length
- Speed Range
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- 6 Brick Z-Flow - Height
C12 Propulsion Engine
Cat® C12 Diesel Marine Propulsion Engines, with ratings of 340-490 bhp (254-366 bkW) at 1800-2300 rpm, meet IMO II emission standards with the exception of the 497 mhp (490 bhp) rating at 2300 rpm which meets IMO I emissions standards. The C12 takes full advantage of the electronically controlled unit injection fuel system, resulting in an environmentally friendly engine with outstanding performance and fuel economy. There is also a wide range of optional equipment available to meet the needs of your marine commercial or pleasure craft application.
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Power Range
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Speed Range
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Rotation from Flywheel End
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Configuration
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Aspiration
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Displacement
732 in³ (12 l)
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Stroke
5.9 in (150 mm)
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Bore
5.1 in (130 mm)
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Emissions
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Width
38.1 in (969 mm)
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Height
39.5 in (1005 mm)
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Dry Weight
2588 lb (1174 kg)
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Length
62 in (1574 mm)
Standard Equipment
Air Inlet System
- Aftercooler - sea water; corrosion resistant, Air Cleaner/Fumes Disposal (closed system), Turbocharger, Jacket Water Cooled
Control System
- Electronic governing, Cold mode start strategy, Power compensation for fuel temperature, Programmable low idle, Electronic diagnostics and fault logging, Engine and transmission monitoring (speed, temperature, pressure), Fuel/air ratio control, Emergency stop switch (A&B ratings only)
Cooling System
- Thermostat and housing, Jacket water pump; gear driven, Sea water pump; rubber impeller; self-priming; gear-driven, Integral heat exhanger/expansion tank; removable tube bundle; replaceable copper-nickel tubes, Keel cooling - combined circuit (includes pipe thread flange kit)
Exhaust System
- Watercooled Manifold & Turbocharger
Flywheels & Flywheel Housings
- Flywheel; SAE No. 1; 113 teeth, Flywheel housing; SAE No. 1 (10 degree slant pad), SAE standard rotation
Fuel System
- Fuel filer; RH service on Port; LH service on Starboard, Fuel transfer pump, Fuel priming pump, Flexible fuel lines
Instrumentation
Lube System
- Crankcase breather, Oil cooler, Oil filter; spin-on; RH service on Port; LH service on Starboard, Oil filler, Dipstick; RH service on Port; LH service on Starboard, Oil pump; gear driven
Mounting System
Power Take-Offs
- Hydraulic pump drive; SAE A; 11 tooth spline, 57 ft-lbs max torque; counterclockwise as viewed from the rear of hte engine looking into the pump drive and turns 1.41 x engine speed, Crankshaft pulley; 345 mm (13.6 in) single groove; 15.88 mm (.63in) width
Protection System
- Shutdown; electronic; 12 or 24 volt; energized to run
General
- Vibration damper, Lifting eyes, RH or LH service options, Literature, Variable engine wiring, Upper rear-facing customer wiring connector and ECAP connection, Electronic installation kit (connectors, pins, sockets)
Optional Equipment
Air Inlet System
- Low Profile Air Inlet Line, Shield (Air Inlet Line)
Charging System
- Charging Alternators, Voltmeter Guages, Voltmeter Guage Mounting, Alternator Mounting Group
Cooling System
- Sea Water Pump, Coolant Recovery Tank, Flange Kit
Exhaust System
- Flexible Fitting, Elbow, Dry Elbow, Watercooled Elbow, Exhaust Connection, Exhaust Outlet Pipe, EXH Outlet Flange, Rain Cap, Muffler
Fuel System
- Fuel Cooler, Fuel Connections, Primary Fuel Filter, Primary Fuel/Water Separator
Instrumentation
- OEM Wiring Harness, Engine to Engine Harness, Digital Tachometer, Tachometer Mounting, Magnetic Pickup, RH 4 Hole Instrument Panel, LH 4 Hole Instrument, Marine Power Display System, Marine Power Display Unit (for additional monitoring stations), Marine Power Display Bracket, Wiring Group, Transmission Sensors
Lube System
- Manual sump pump, Transmission oil cooler
Mounting System
Power Take-Offs
- Crankshaft Pulley, Front Stub Shaft, Front Stub Shaft & Pulley
Starting System
- Air Pressure Regulator, Air Start Silencer, Start Switch, Jacket Water Heater, Battery sets (24 volt - dry)
General
- Wiring Harness Removal, Belt Guard - Alternator, Belt Guard - Alternator Pulley, Filter Cover Kit
Packing
- Overseas Preservation, Engine Protective Cover, Storage Preservation, Export Packing
