Engine Components

Simplified and Safer Installation: One kit fits 2007.5-2024 2500/3500/4500/5500 6.7L Cummins engines – the broadest coverage of any kit on the market! We make it easy - no need to worry about being unsure if you’ve selected the right kit for your truck. No...

6.7L Cummins owners: Our add-on cold weather kit for the Fleece Performance intake and grid heater kit provides proven engine startability down to -35° centigrade! Optimized heater design and placement in the intake air stream ensure you get the most efficient heating possible. Compared...

Get the optimal seal with the Fleece Performance fire ring head gasket for the 2007.5-2018 Dodge 6.7L Cummins. This head gasket is a direct replacement for use with our 6.7L Freedom Series Performance Cylinder Head (P/N: FPE-61-10008). Reference our machining and installation instructions if...

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: Standard thickness Multi-layer steel construction Meets or exceeds OE specifications Application Notes: Replaces Cummins...

Get the optimal seal with the Fleece Performance fire ring head gasket for the 2003-2007 Dodge 6.7L Cummins. This head gasket is a direct replacement for use with our 5.9L Freedom Series Performance Cylinder Head (P/N: FPE-61-10006). Reference our machining and installation instructions if...

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: 1.25 mm thickness Multi-layer steel construction Meets or exceeds OE specifications Application...

Replacement front cover dowels for use on Cummins 5.9L and 6.7L engines. Replaces Cummins part number 3949326. Kit includes 2 dowels.This Part Fits: Year Make Model Submodel 2003,2005-2010 Dodge Ram 2500 Laramie 2003-2010 Dodge Ram 2500 SLT 2006-2007 Dodge Ram 2500 Sport 2003-2010 Dodge...

Cummins Mechanical Fuel Pump Block Off Plate Have you upgraded from your factory mechanical lift pump to an electric pump? This block off will eliminate the void left by your stock pump. Complete with bolts, cover, and o-ring.This Part Fits: Year Make Model Submodel...

Replacement cylinder head dowels for use between the engine block and cylinder head. Replaces Cummins part number 3902343. Kit includes 2 dowels. Fits 1989-2023 Cummins 12 valve, 5.9L and 6.7L engines.This Part Fits: Year Make Model Submodel 1994-2002 Dodge Ram 2500 Base 2003,2005-2010 Dodge...

Installing a new long block in your 2007.5-2018 6.7L Cummins? Our top-end gasket set has everything you need to complete a proper reseal. Kit includes the following components: OE Ref: 3977393, O-Ring Seal, Qty 6 OE Ref: 3976371, Injector Seal, Qty 6 OE Ref:...

Replacing the cylinder head on a 2007.5-2018 6.7L Cummins? Our top-end gasket set has everything you need to complete a proper reseal. Kit includes the following components: OE Ref: 4932210, Cylinder Head Gasket, Qty 1 (FPE-CUMM-HG-6.7) OE Ref: 3977393, O-Ring Seal, Qty 6 OE...

Fleece Performance billet rocker arm bridges for the 2001-2023 GM 6.6L Duramax are designed for high stress applications. Features: Machined from billet tool steel, the bridges are surface ground for flatness and nitrided to create a durable, low friction surface. Includes 16 bridges.This Part...

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...

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

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 incorporate increased wall thickness and additional material where it counts, providing for...

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 incorporate increased wall thickness and additional material where it counts, providing for...

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...

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...

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...

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...

To use this freight service to return your core: 1) Contact us at 317-286-3573 2) Have your Name, email, and city information ready. 3) We will work with Fastenal to identify the nearest location to you that provides freight services. Fastenal will email you...

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...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with...