Caterpillar C12

Power 340-490 hp

Max Torque 1650 lb-ft at 1,200 RPM

This American made diesel engine, the Caterpillar C12 is best used in trucks with a range of uses from on-highway buses and trucks to industrial vehicles. The Cat C12 offers an environmentally friendly engine by taking full advantage of the electronically controlled unit injection fuel system, resulting in outstanding fuel economy and performance. Optional display systems available and an electronic control system with additional room for future enhancements. This engine features a fan-drive mounting bracket, front engine supports, a lubricating oil filter and a dry charge coolant conditioner. Minimum recommended engine speed at cruising is 1,400 rpm at 55 mph with a maximum cruising speed at 1,700 rpm.

  • The 732 cubic-inch Cat 12 is an air-to-air cooled diesel 12-valve engine with a cylinder bore of 5.1 inches in diameter and a piston stroke of 5.9 inches in length.
  • The Cat C12 rpm range is between 1,200 and 2,100 rpm with a redline level at 2,100 rpm with a governor that is programmed to shut off the engine if 2,100 rpm is passed.
  • With a turbocharged engine and a counterclockwise flywheel rotation of the gears, this engine is both liquid and air cooled with a coolant capacity of 2.7 gallons.
  • Electrical backup system for battery and an extensive self-diagnostic system makes this engine easy to maintain on the road.
  • Contains an ADEM III control system with more control outputs and inputs, allowing the capacity for additional features such as monitoring capabilities and room for expansion.