Upgrade your Cummins valve springs and retainers with our Fleece Performance spring and retainer kit. Our springs are manufactured from super clean Hi-Tensile Chrome Silicon steel with a proprietary multi-step heat treating process that minimizes load loss. These springs have a seat pressure of...

Freedom Series Cummins Performance cylinder heads. Each head is manufactured in our state-of-the-art cylinder head machine shop and guaranteed to meet or exceed factory specifications. All heads are inspected, pressure checked, decked, painted, and ready for installation. Plus, the 11 screw in freeze plugs...

Trust Fleece Performance to bring you the best OE alternative parts you need! Our replacement head gasket for the 2003-2007 Dodge 5.9L Cummins will ensure your engine gets the optimal reseal. Features: OE Replacement Head Gasket for 5.9L Cummins (Thick) 1.25 mm thickness Multi-layer...

Fleece Performance Billet Rocker Arm Bridges for 1998.5-2018, 24V 5.9L/6.7L Cummins (Set of 12) Features: These bridges offer a massive 2.5-times strength improvement over the factory bridges. Machined from billet steel The bridges are surface ground for flatness Feature improved oiling to the valve...

Upgraded 3/8 inch diameter pushrods for Cummins 24V diesel engines. Produced from 4130 chrome molybdenum steel and heat treated to Rockwell Rc60 for outstanding strength and rigidity. These pushrods are designed to stand up to higher valve spring pressure, RPM, and cylinder pressure while...

Trust Fleece Performance to bring you the best OE alternative parts you need! Our replacement head gasket for the 6.7L Cummins will ensure your engine gets the optimal reseal. Features: OE Replacement Head Gasket for 6.7L Cummins (Standard Thickness) Standard thickness Multi-layer steel construction...

Freedom Series cylinder heads - Give new life to your engine with our fully remanufactured Cummins cylinder head. Each head is manufactured in our state-of-the-art cylinder head machine shop and guaranteed to meet or exceed factory specifications. All heads are inspected, pressure checked, decked,...

Trust Fleece Performance to bring you the best OE alternative parts you need! Our replacement rocker armassembly fits 1998.5-2018 Dodge 5.9L and 6.7L Cummins engines. Features: Direct fit replacement Meets or exceeds OE specifications Application Notes: Replaces Cummins P/N: 4995602 Superseded and alternative Cummins...

Upgraded 7/16 inch diameter pushrods for GM's Duramax 6.6L diesel engines. Produced from 4130 chrome molybdenum steel and heat treated to Rockwell Rc60 for outstanding strength and rigidity. These pushrods are designed to stand up to higher valve spring pressure, RPM, and cylinder pressure...

Fleece Performance billet rocker arm bridges for the GM Duramax. These bridges offer a massive 2.5-time strength improvement over factory bridges. Machined from billet 8620 steel, the bridges are surface ground for flatness, feature improved oiling to the valve stems, and case hardened and...

Dress up your GM 6.6L Duramax diesel engine with upgraded PPE Billet Aluminum Valve Covers. Available with or without pillars, these new valve covers are precision?machined from billet to an overall thickness of?.75 Inch/19mm, 6061-T6 aluminum on a multi-axis mill. The PPE Billet Aluminum...

Dress up your GM 6.6L Duramax diesel engine with upgraded PPE Billet Aluminum Valve Covers. Available with or without pillars, these new valve covers are precision machined from billet to an overall thickness of.75 Inch/19mm, 6061-T6 aluminum on a multi-axis mill. The PPE Billet...

Dress up your GM 6.6L Duramax diesel engine with upgraded PPE Billet Aluminum Valve Covers. Available with or without pillars, these new valve covers are precision machined from billet to an overall thickness of.75 Inch/19mm, 6061-T6 aluminum on a multi-axis mill. The PPE Billet...

Dress up your GM 6.6L Duramax diesel engine with upgraded PPE Billet Aluminum Valve Covers. Available with or without pillars, these new valve covers are precision?machined from billet to an overall thickness of?.75 Inch/19mm, 6061-T6 aluminum on a multi-axis mill. The PPE Billet Aluminum...

The intake/exhaust valve, valve seal, spring, spring seat/retainer/keeper kit comes standard with each PPE Duramax Cast Iron Cylinder head. This kit is specially designed for the GM 6.6L Duramax and contains the components for both driver and passenger side cylinder heads. The valves are...

The valve spring, spring seat/retainer/keeper kit comes installed with each PPE Duramax Cast Iron Cylinder head. The tapered valve springs' higher spring rate and lighter valve train weight enable faster response during higher RPMs and eliminate valve float. Premium chromoly material construction ensures the...

Dress up your GM 6.6L Duramax diesel engine with upgraded PPE Billet Aluminum Valve Covers. Available with or without pillars, these new valve covers are precision?machined from billet to an overall thickness of?.75 Inch/19mm, 6061-T6 aluminum on a multi-axis mill. The PPE Billet Aluminum...

Dress up your GM 6.6L Duramax diesel engine with upgraded PPE Billet Aluminum Valve Covers. Available with or without pillars, these new valve covers are precision?machined from billet to an overall thickness of?.75 Inch/19mm, 6061-T6 aluminum on a multi-axis mill. The PPE Billet Aluminum...

Dress up your GM 6.6L Duramax diesel engine with upgraded PPE Billet Aluminum Valve Covers. Available with or without pillars, these new valve covers are precision?machined from billet to an overall thickness of?.75 Inch/19mm, 6061-T6 aluminum on a multi-axis mill. The PPE Billet Aluminum...

Dress up your GM 6.6L Duramax diesel engine with upgraded PPE Billet Aluminum Valve Covers. Available with or without pillars, these new valve covers are precision?machined from billet to an overall thickness of?.75 Inch/19mm, 6061-T6 aluminum on a multi-axis mill. The PPE Billet Aluminum...