Diesel Performance

The Donaldson P551329 Fuel Filter is a direct replacement filter for the Fleece Performance Under Bed Fuel Filter Assembly for the 2019-2024 Ram 2500/3500. This case quantity includes 12 filters. Fits the following kits: FPE-CUMM-UBFA-1924

The Donaldson P551329 Fuel Filter is a direct replacement filter for the Fleece Performance Under Bed Fuel Filter Assembly for the 2019-2024 Ram 2500/3500. Fits the following kits: FPE-CUMM-UBFA-1924

Replacement O-ring kit for Fleece Performance Duramax Oil Cooler Adapter, FPE-DMAX-OCADPT.This Part Fits: Year Make Model Submodel 2001-2005 Chevrolet Silverado 2500 HD Base 2015-2019 Chevrolet Silverado 2500 HD High Country 2001-2006 Chevrolet Silverado 2500 HD LS 2001-2019 Chevrolet Silverado 2500 HD LT 2007-2019 Chevrolet...

Problem: The original equipment oil cooler adapter relies on a metal gasket on the oil cooler that over time is prone to leaking as the cooler flexes. Fix: The Fleece Performance oil cooler adapter utilizes an integral square cut seal ring on the oil...

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...

Fleece Performance Fuel Temperature Sensor Mounting Block For LML Duramax CP3 Conversions

Introducing our all-new full featured auxiliary fuel filter kit for the 2011-2016 LML 6.6L Duramax! This kit replaces the factory fuel filter housing with a new filter base, integral high-flow fuel heater, Water-In-Fuel (WIF) sensor, and Donaldson spin-on canister style filter. The filter base...

The Fleece Performance CP3K is a modified Duramax LBZ CP3 designed to eliminate the factory fuel flow restriction that begins at 3,000 RPM. If you have a stock CP3 pump you are losing fuel flow and rail pressure after 3000 RPM, which correlates to...

Replacement CP3 adapter machined from billet aluminum for the 2001-2016 GM Duramax. Includes new O-rings for the CP3 pump snout and CP3 adapter. APPLICATION NOTES Direct replacement for GM part number 97328578 and 97188692 Direct replacement for Sierra / Silverado model years 2001-2010 Direct...

The Fleece Performance Duramax 10mm stroker CP3 is a straight forward, no inflated numbers, CP3 upgrade proven to support 750 RWHP with the proper complimenting modifications. Not only will it support 750 RWHP, but it also eliminates the factory fuel flow restriction that begins...

Brand new Bosch CP3 for the 2006-2010 Duramax from Fleece Performance! Direct drop in replacement for stock injection pump. Pump include a new snout O-ring APPLICATION NOTE: The fuel pressure regulator will need to be scaled appropriately when installed in a 2001-2005 (LB7 or...

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...

Complete installation kit for VGT style turbochargers on the 2019-2024 RAM with 6.7L Cummins. Kit Includes: Turbocharger exhaust inlet gasket Turbocharger oil drain gasket Turbocharger cooling port 16mm sealing washers (4) Turbocharger mounting studs (4) Turbocharger mounting nuts (4)This Part Fits: Year Make Model...

Complete installation kit for VGT style turbochargers on the 2007.5-2018 RAM with 6.7L Cummins. Kit Includes: Turbocharger exhaust inlet gasket Turbocharger oil drain gasket Turbocharger cooling port 16mm sealing washers (4) Turbocharger mounting studs (4) Turbocharger mounting nuts (4)This Part Fits: Year Make Model...

Tired of over-priced fuel filter service costs and questionable filter options? Our direct replacement under bed fuel filter base for the 2019-2024 Ram with 6.7L Cummins allows you to convert to a more convenient Donaldson spin-on filter and will lower your ongoing filter maintenance...

The Fleece Performance replacement thermostat housing with auxiliary port is a direct replacement part for model years 2019-2024 RAM with 6.7L Cummins. The auxiliary port is threaded to accept a -10AN (7/8"-14) fitting to allow you to customize your coolant routings and includes port...

The Fleece Performance replacement thermostat housing with auxiliary port is a direct replacement part for model years 1998.5-2007 RAM with 5.9L Cummins and 2013-2018 RAM with 6.7L Cummins. The auxiliary port is threaded to accept a -10AN (7/8"-14) fitting to allow you to customize...

Replace your leaking or corroded heater tubes with our upgraded stainless steel tubes and high temperature silicone hose kit from Fleece Performance. This kit contains everything you need to replace your heater lines from the block to the firewall. This kit is designed as...

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...