Caterpillar 3P-3731 Cam is a genuine CAT camshaft identified by part number 3P-3731, designed to actuate the engine’s valve train in compatible Caterpillar diesel engines. As a camshaft, it converts rotational motion into the timed, lift-driven movement required to open and close intake and exhaust valves, helping regulate airflow and engine breathing. For correct fitment, verify compatibility with your engine family and serial number through CAT’s official parts catalogs or your service documentation before ordering.
