Shim Kit / Oil Pump Shim Kit

Genuine OEM shim kit for the oil pump of Cummins heavy-duty engines. Designed to precisely adjust the clearance between the oil pump rotor and housing to restore optimal oil pressure and flow performance. Direct fit for Cummins part number 3800751, manufactured in the USA to strict factory specifications. Includes high-quality precision shims made of hardened steel for reliable durability under extreme operating temperatures and heavy duty usage.