Engine Components

Replacement connector with 6" pigtail for use on the 2007-2022 Ram with 6.7L Cummins along with many other applications. Produced in-house, our manufacturing process includes fully automated wire cutting and terminal crimping to ensure you get the highest quality replacement parts you need to...

Replacement adapter harness for use on the 2002 Dodge Cummins MAP Sensor. Produced in-house, our manufacturing process includes fully automated wire cutting and terminal crimping to ensure you get the highest quality replacement parts you need to get your truck or car back on...

Regulator extension harness for use with Bosch CP3's used in 6.6L Duramax applications.This Part Fits: Year Make Model Submodel 2015-2016 Chevrolet Silverado 2500 HD High Country 2011-2016 Chevrolet Silverado 2500 HD LT 2011-2016 Chevrolet Silverado 2500 HD LTZ 2011-2016 Chevrolet Silverado 2500 HD WT...

Extension harness for use with air intake sensors on 2013-2024 Dodge Ram with 6.7L Cummins.This Part Fits: Year Make Model Submodel 2013-2024 Ram 2500 Big Horn 2013-2024 Ram 2500 Laramie 2014-2015 Ram 2500 Laramie Limited 2013-2021 Ram 2500 Laramie Longhorn 2016-2024 Ram 2500 Limited...

Stainless Steel universal coolant level switch for use with the Fleece Performance coolant tank part numbers FPE-34235 (discontinued) and FPE-CUMM-CLNT-TNK-1318 or custom configuration tanks. Features a stainless steel body with 1" NPT thread, 8" harness, and two-pin metripack connector for direct connection to the...

dress up your engine bay with our billet aluminum oil cap for the Chevy Duramax! Includes O-ring and cam-lock and is a direct replacement for your OEM cover. Dress up your engine bay with our billet aluminum oil cap for the Chevy Duramax! Includes...

dress up your engine bay with our billet aluminum oil cap for the Chevy Duramax! Includes O-ring and cam-lock and is a direct replacement for your OEM cover. Dress up your engine bay with our billet aluminum oil cap for the Chevy Duramax! Includes...

dress up your engine bay with our billet aluminum oil cap for the Chevy Duramax! Includes O-ring and cam-lock and is a direct replacement for your OEM cover. Dress up your engine bay with our billet aluminum oil cap for the Chevy Duramax! Includes...

2001-2023 Duramax Billet Coolant Block Off Plate (Replaces GM P/N: 97941204) OE covers are prone to leakage as the gaskets dry out and factory cast covers corrode. Our billet coolant block off plate with an integral O-ring is an upgrade for your rear engine...

All new stainless steel fuel tube nuts from Fleece Performance. Ensure a proper seal on your injector tubes and high pressure injection lines with our high tolerance nuts produced from 300 series stainless steel. Application Notes Replaces Cummins P/N: 5264181, 3946625, 4893739 Replaces Mopar...

Upgraded 3/8" 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 minimizing...

Trust Fleece Performance to bring you the best OE alternative parts you need! Our replacement rocker arm assembly 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...

Eliminate the risk of a failed grid heater nut dropping into your engine on your 2007.5-2024 6.7L Cummins with our high flow intake plenum! Our plenum replaces the troublesome factory grid heater plate to increase airflow and throttle response. Features: Cast aluminum high flow...

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:...