CUMMINS

The Fleece Performance coolant bypass for the 2013-2018 RAM with 6.7L Cummins seamlessly integrates with your truck for an OE fit-and-finish.    ...

Fix your leaking transmission lines with these heavy duty, high flow, flexible transmission lines. This kit is complete with everything needed to...

The Fleece Performance Dual Pump Kit Hardware Kit for the 6.7L Cummins is designed to fit perfectly and comes with everything you need to get the...

PROBLEM: If you are running an aftermarket pump that is mounted external of the fuel tank, you will need to install a draw straw or drill your fu...

PROBLEM: If you are running an aftermarket pump that is mounted external of the fuel tank, you will need to install a draw straw or drill your fu...

The Fleece Performance coolant bypass for the 2007.5-2012 RAM with 6.7L Cummins seamlessly integrates with your truck for an OE fit-and-finish.  ...

The Fleece Performance Dual Pump Kit Hardware Kit for the 6.7L Cummins is designed to fit perfectly and comes with everything you need to get the...

Introducing our Freedom Series Cummins Performance cylinder heads. Each cylinder head is manufactured in our state-of-the-art cylinder head machi...

Introducing our Freedom Series cylinder heads - Each cylinder head is manufactured in our state-of-the-art cylinder head machine shop and guarant...

Introducing our Freedom Series cylinder heads. Each cylinder head is manufactured in our state-of-the-art cylinder head machine shop and guarante...

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...

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...

Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9L Cummins suffer from a lack of coolant flow, and therefore, ex...

Description The Fleece Performance Dual Pump Kit Hardware Kit for the 5.9L Cummins is designed to fit perfectly and comes with everything you nee...

Description Only from Fleece Performance, a complete fuel supply upgrade kit for your 2003-2004 Dodge Cummins.  The kit includes everything you nee...

Description If you're throwing a second pump onto your 3rd Gen Cummins then this Fleece Manufacturing dual pump bracket kit is a great solution f...

Auxiliary fuel filter and line kit for your 2003-2018 Dodge Cummins.  The kit includes everything you need to properly route, plumb and filter fu...

Description This sending unit fits directly into the stock unit location, featuring quick disconnects to adapt your stock fuel lines, & check...

PROBLEM: If you are running an aftermarket pump that is mounted external of the fuel tank, you will need to install a draw straw or drill your fu...

The PowerFlo lift pump is the latest OEM replacement performance lift pump from the diesel experts at Fleece Performance.  The PowerFlo is the o...

Introducing our all-new full featured auxiliary fuel filter kit for the 2003-2018 Dodge Cummins.  This kit builds off our standard auxiliary kit ...

Introducing our Freedom Series Cummins Performance cylinder heads. Each cylinder head is manufactured in our state-of-the-art cylinder head machi...

Description Introducing our Freedom Series cylinder heads. Each cylinder head is manufactured in our state-of-the-art cylinder head machine shop ...

Introducing our Freedom Series cylinder heads. Each cylinder head is manufactured in our state-of-the-art cylinder head machine shop and guarante...