Improved casting. This isn’t your run of the mill, rinse and repeat OE casting.  Engineered from the ground up with years of testing and development - our higher tensile strength alloy castings...

Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. This...

Replacement connector with 48" pigtail for use on the 6.0 and 6.4 Powerstroke engines. The additional length pigtail allows for routing of the harness from the sensor directly to an accessible...

Replacement oil pressure sensor pigtail for use on the 2003-2010 6.6L Duramax. Produced in-house, our manufacturing process includes fully automated wire cutting and terminal crimping to ensure you...

Replacement connectors with 6" pigtail for use on the Cummins engine, this kit includes BOTH sides of the connector with flying leads to allow you to repair both sides when damaged by a broken...

Dress up your Cummins with this billet aluminum oil cap cover. It's available in four anodized colors and laser etched with the Fleece Performance "F" logo. It is a great accessory to add to your...

Ensure your turbocharger has a good oil supply line with our replacement turbocharger oil feed line kit designed for use with a Cheetah or stock Holset turbocharger in the factory location...

Replacement Turbo Oil Feed Line designed for use with a 1/4" NPT inlet turbochargers. The oil feed line is intended for use with S300 or S400 turbochargers mounted in a lower position and WILL NOT...

Introducing our all-new full featured auxiliary fuel filter kit for the 2003-2018 Dodge Cummins. This kit builds off our standard auxiliary kit with the addition of an integral high-flow fuel heating...