Cat® Crankshaft is a rotating shaft which (in conjunction with the connecting rods) converts reciprocating motion of the pistons into rotational motion. Crankshafts are commonly used in internal combustion engines and consist of a series of cranks and crank pins to which the connecting rods are attached. Cat® service parts allow easy field service of your Cat® equipment with durable components that keep your hardworking equipment up and running. Quality you expect for your equipment.Application:Cat® Crankshaft is used in the engines of Cat® machines. Consult your owner's manual or contact your local Cat® Dealer for more information.