Ratings
| Power Range | 340 - 705 bhp (254 - 526 bkW) 340 - 705 bhp (254 - 526 bkW) |
High Performance Propulsion and Maneuvering Solutions C12 ACERT
Request A Price Find DealerKey Specs
- Power Range
- 340 - 705 bhp (254 - 526 bkW)
- 340 - 705 bhp (254 - 526 bkW)
- Speed Range
- 1800 - 2300 rpm
- 1800 - 2300 rpm
- Emissions
- IMO I, IMO II
- IMO I, IMO II
Overview
Cat® C12 ACERT Diesel Marine Propulsion Engines, with ratings of 669-715 mhp (660-705 bhp) at 2300 rpm, meet IMO II emission 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 specific pleasure craft application.
Product Specifications for C12 ACERT
Engine
| Speed Range | 1800 - 2300 rpm 1800 - 2300 rpm |
| Emissions | IMO I, IMO II IMO I, IMO II |
| Aspiration | TA TA |
| Bore | 5.1 in 130 mm |
| Stroke | 5.9 in 150 mm |
| Displacement | 732 in³ 12 l |
| Rotation from Flywheel End | Counterclockwise Counterclockwise |
| Configuration | In-line 6, 4-Stroke-Cycle Diesel In-line 6, 4-Stroke-Cycle Diesel |
Dimensions & Weights
| Width | 38.1 in 969 mm |
| Dry Weight | 2588 lb 1174 kg |
| Length | 62 in 1574 mm |
| Height | 39.5 in 1005 mm |
C12 ACERT 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
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
- Front support
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)
C12 ACERT 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
- Vibration Isolators
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
See how C12 ACERT compares against frequently compared products.
Marine Power Systems
C12 ACERT
Selected
- Power Range
- 340 - 705 bhp (254 - 526 bkW)
- 340 - 705 bhp (254 - 526 bkW)
- Speed Range
- 1800 - 2300 rpm
- 1800 - 2300 rpm
- Emissions
- IMO I, IMO II
- IMO I, IMO II
Marine Power Systems
C7.1
- Power Range
- 400 bhp - 500 bhp (298 bkW - 373 bkW)
- 400 bhp - 500 bhp (298 bkW - 373 bkW)
- Speed Range
- 2900 rpm
- 2900 rpm
- Emissions
- IMO II, U.S. EPA Tier 3, RCD II, China II
- IMO II, U.S. EPA Tier 3, RCD II, China II
Marine Power Systems
C18 ACERT Tier 3
- Power Range
- 814-1015 mhp, 803-1001 bhp, 599-747 bkW
- 814-1015 mhp, 803-1001 bhp, 599-747 bkW
- Speed Range
- 2100-2300 rpm
- 2100-2300 rpm
- Emissions
- EPA Tier 3, IMO II, EU Stage IIIA
- EPA Tier 3, IMO II, EU Stage IIIA
Use the comparison tool to compare detailed specs of Cat and competitor models.
Compare All Modelsassignment Product Brochures and More Are Ready to Download!
Caterpillar product brochures and other informational documents are available for your growing business.