FLEECE PERFORMANCE ENGINEERING

2001-2016 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...

Brand new Bosch CP3 for the 2006-2010 Duramax from Fleece Performance! Direct drop in replacement for stock injection pump Pump includes a new snout O-ring Application Note: The fuel pressure...

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...

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...

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...

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...

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. 2001-2016 Duramax Oil Cap Black Revamp...

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. 2001-2016 Duramax Oil Cap Blue Elevate...

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. 2001-2016 Duramax Oil Cap Red  Transform...

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...

Replacement O-ring kit for Fleece Performance Duramax Oil Cooler Adapter, FPE-DMAX-OCADPT.Features: Duramax Oil Cooler Adapter O-Ring Kit 6 Month Limited Warranty Sold As: Kit Enhance the...

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...

The Donaldson P553203 Fuel Filter is a direct replacement filter for the Fleece L5P Duramax Fuel Filter Kits and 1998.5-2018 Dodge Ram Cummins Auxiliary Fuel Filter Kits. The filter is rated at 3...

The Donaldson P555095 Fuel Filter is a direct replacement filter for use with the Fleece Performance Engine Mounted Filter Assembly for 6.7L Ford Powerstroke, part number FPE-FMC-UHFA-1123. Fits the...

The Fleece Performance Dual Pump Kit Hardware Kit for the 5.9L Cummins is designed to fit perfectly and comes with everything you need to get the job done right the first time with a simple and clean...

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 job done right the first time with a simple and clean...

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 job done right the first time with a simple and clean...

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 job done right the first time with a simple and clean...

Make turbo installations easier and ensure good oil supply to your turbocharger with our remote oil feed line! Problem: The factory turbo oil feed used on the 2001-2016 Duramax's is supplied off of...

Problem: The factory turbo oil feed used on 2001-2016 Duramax's is supplied off of the #4 cam journal bearing, which can be restrictive, or even result in an oil blockage if the bearing slips...

Replace your plastic OEM fuel cap with this stylish billet black anodized fuel cap. It comes with a double o-ring seal to ensure a tight fit and keep contaminates out of your fuel tank. It also has...

Replace your plastic OEM fuel cap with this stylish billet green anodized fuel cap. It comes with a double o-ring seal to ensure a tight fit and keep contaminates out of your fuel tank. It also has...

Replacement fuel filter adapter fitting with M16x1.5 thread. For use with our under hood filter base (FPE-FMC-UHFA-1123) on 2011-2024 Ford 6.7L trucks.The Fleece FPE-FF-M16-ADPT Fuel Filter Adapter...

Upgrade your fuel system with this fuel distribution block from Fleece Performance Engineering. If you have an aftermarket fuel filtration system such as an Air Dog or a FASS and dual CP3 pumps, this...

Upgrade your fuel system with this fuel distribution block from Fleece Performance Engineering. If you have an aftermarket fuel filtration system such as an Air Dog or a FASS and dual CP3 pumps, this...

Upgrade your fuel system with this fuel distribution block from Fleece Performance Engineering. If you have an aftermarket fuel filtration system such as an Air Dog or a FASS and dual CP3 pumps, this...

This kit is designed to be installed with our 2003-2009 Cummins Fuel Distribution Block (FPE-FFD-RF-3G). It comes complete with all of the high quality AN fittings and push lock hose needed to...

This kit is designed to be installed with our 2007.5-2009 Cummins Fuel Distribution Block (FPE-FFD-RF-3G-67). It comes complete with all of the high quality AN fittings and push lock hose needed to...

This kit is designed to be installed with our 2010-2015 Cummins Fuel Distribution Block (FPE-FFD-RF-4G). It comes complete with all of the high quality AN fittings and push lock hose needed to...

Upgrade your fuel system with this fuel filter delete from Fleece Performance Engineering. If you have an aftermarket fuel filtration system such as an Air Dog or a FASS, your factory fuel filter is...

Upgrade your fuel system with this fuel filter delete from Fleece Performance Engineering. If you have an aftermarket fuel filtration system such as an Air Dog or a FASS, your factory fuel filter is...

Upgrade your fuel system with this fuel filter delete from Fleece Performance Engineering. If you have an aftermarket fuel filtration system such as an Air Dog or a FASS, your factory fuel filter is...

2019-Present 5th Gen Dodge Ram with Cummins, Fuel Filter Delete. If you have an aftermarket fuel filtration system such as an Air Dog or a FASS, your factory fuel filter is no longer necessary. The...

Fuel heater for use in Fleece Performance heated fuel filter kits. Fuel heater specifications: Temperature switching points: ON: 28.4F Plus/Negative 5.4F, OFF: 48.2F Plus/Negative 5.4F At typical...

Fuel heater kit specifically for use in Fleece Performance heated fuel filter kits installed on 2011-2016 Ford 6.7L Powerstroke. This kit includes the fuel heater and chassis harness to provide...

Fuel heater kit specifically for use in conjunction with Fleece Performance fuel filter kits installed on the 2017-2024 Ford 6.7L Powerstroke. This kit includes the fuel heater and chassis harness to...

2017-2024 Ford 6.7L Powerstroke Cab and Chassis owners-This extension harness is required in combination with part number FPE-FH-FMC-1724 when adding the optional fuel heater to the under bed filter...

3/8 inch Black Anodized Aluminum Y Barbed Fitting (For -6 Pushlock Hose). Features: 3/8 inch Black Anodized Aluminum Discover the ultimate solution for your plumbing projects with the FLEECE...

1/2 Inch Black Anodized Aluminum Y Barbed Fitting (For -8 Pushlock Hose). Features: 1/2 Inch Black Anodized Aluminum Experience superior performance with the FLEECE FPE-FIT-Y08-BLK 1/2 Inch Black...

Replacement high pressure fuel lines from Fleece Performance.  These are a direct replacement for your cracked, broken, or leaking injector lines.  Replaces Cummins part number 4935981 on cylinder 1...

Replacement high pressure fuel lines from Fleece Performance. These are a direct replacement for your cracked, broken, or leaking injector lines. Replaces Cummins part number 4935982 on cylinders 2...

Replacement high pressure fuel lines from Fleece Performance.  These are a direct replacement for your cracked, broken, or leaking injector lines.  Replaces Cummins part number 4935974 on cylinders 4...

Replacement high pressure fuel lines from Fleece Performance.  These are a direct replacement for your cracked, broken, or leaking injector lines.  Replaces Cummins part number 4935976 on cylinder 6...

Replacement high pressure fuel lines from Fleece Performance. These are a direct replacement for your cracked, broken, or leaking injector lines. This complete set includes six lines.  Kit...

Replacement high pressure fuel lines from Fleece Performance. These are a direct replacement for your cracked, broken, or leaking injector lines. This kit includes a complete set of 8 lines...

LLY Duramax High Pressure Injection Line Kit. Replacement high pressure fuel lines from Fleece Performance. These are a direct replacement for your cracked, broken, or leaking injector lines...

Original LB7 Injection lines will corrode and break and are a leading cause of contamination when changing the injectors. If you are changing your injectors, have a line failure, or are looking to...

Original LB7 Injection lines will corrode and break and are a leading cause of contamination when changing the injectors. If you are changing your injectors, have a line failure, or are looking to...

Original LB7 Injection lines will corrode and break and are a leading cause of contamination when changing the injectors. If you are changing your injectors, have a line failure, or are looking to...

Original LB7 Injection lines will corrode and break and are a leading cause of contamination when changing the injectors. If you are changing your injectors, have a line failure, or are looking to...

LBZ/LMM Duramax High Pressure Injection Line (Number 1 and Number 8). Replacement high pressure fuel lines from Fleece Performance. These are a direct replacement for your cracked, broken, or leaking...

LBZ/LMM Duramax High Pressure Injection Line (Number 2 and Number 7). Replacement high pressure fuel lines from Fleece Performance. These are a direct replacement for your cracked, broken, or leaking...

LBZ/LMM Duramax High Pressure Injection Line (Number 3 and Number 6). Replacement high pressure fuel lines from Fleece Performance. These are a direct replacement for your cracked, broken, or leaking...

LBZ/LMM Duramax High Pressure Injection Line (Number 4 and Number 5). Replacement high pressure fuel lines from Fleece Performance. These are a direct replacement for your cracked, broken, or leaking...

LLY Duramax High Pressure Injection Line (Number 1 and Number 8). Replacement high pressure fuel lines from Fleece Performance. These are a direct replacement for your cracked, broken, or leaking...

LLY Duramax High Pressure Injection Line (Number 2 and Number 7). Replacement high pressure fuel lines from Fleece Performance. These are a direct replacement for your cracked, broken, or leaking...

LLY Duramax High Pressure Injection Line (Number 3 and Number 6). Replacement high pressure fuel lines from Fleece Performance. These are a direct replacement for your cracked, broken, or leaking...

LLY Duramax High Pressure Injection Line (Number 4 and Number 5). Replacement high pressure fuel lines from Fleece Performance. These are a direct replacement for your cracked, broken, or leaking...

Replacement high pressure fuel line for 6.6L LML Duramax's with CP3 conversion kits.Features: Replacement High Pressure Fuel Line for LML CP3 Conversions Engine Manufacturer: Duramax Engine...

The plastic factory injector return fitting on the 2011-2016 6.7L Power Stroke is susceptible to breakage from heat, vibration, rough handling, and frequent disconnections for fuel filter maintenance...

The plastic factory injector return fitting on the 2011-2016 6.7L Power Stroke is susceptible to breakage from heat, vibration, rough handling, and frequent disconnections for fuel filter maintenance...

Service your 2011-2016 Fleece Performance Injector Return Repair fitting (FPE-FMC-FF-RLK-1116) with our service kit that includes new O-rings and locking ring.Kit includes: 2 O-rings 1 locking...

The plastic factory injector return connector on the 2017-2024 6.7L Power Stroke is susceptible to breakage from heat, vibration, rough handling and frequent disconnections for fuel filter...

The plastic factory injector return connector on the 2017-2024 6.7L Power Stroke is susceptible to breakage from heat, vibration, rough handling and frequent disconnections for fuel filter...

Service your 2017-2024 Fleece Performance Injector Return Repair fitting (FPE-FMC-FF-RLK-1724) with our service kit that includes new O-rings and locking ring. Kit Includes: 2 O-rings 1 locking...

All New Fleece Performance Fuel Filter Bypass for the under hood filter assembly on the Ford F250/350/450/550 6.7L Powerstroke! If you are running an aftermarket lift pump or auxilliary fuel...

The Fleece Performance under bed filter for the 2011-2016 6.7L Power Stroke allows you to maintain both your under bed and under hood fuel filters separately instead of being required to purchase in...

Buy in bulk and save! The Fleece Performance under bed filter for the 2011-2016 6.7L Power Stroke allows you to maintain both your under bed and under hood fuel filters separately instead of being...

Upgrade your plastic OEM or aftermarket engine coolant thermostat housing on your 6.7L Power Stroke with our more durable cast aluminum model! Our direct replacement thermostat housing works with all...

Ready to upgrade your factory under bed fuel filtration on your 2017-2024 Ford 6.7L Powerstroke? The latest OEM+ solution from Fleece Performance is a true “drop-in” upgrade to the furnace style...

All New Fleece Performance replacement under hood filter assembly for the Ford F250/350/450 6.7L Powerstroke! The plastic OE filters are prone to cracking and fuel leakage - eliminate the risk of a...

The return fuel pressure test port for the 2011-2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, often necessary when diagnosing CP4 pump failures. When...

Stainless steel universal coolant level switch for use with the Fleece Performance coolant tank (Part Number: FPE-34235) or custom configuration tanks. Features a stainless steel body with 1 inch NPT...

Eliminate the risk of a failed grid heater bolt dropping into your engine on your 2007.5-2012 6.7L Cummins with our high flow intake plenum! Our plenum replaces the troublesome factory grid heater to...

Eliminate the risk of a failed grid heater bolt dropping into your engine on your 2013-2018 6.7L Cummins with our high flow intake plenum! Our plenum replaces the troublesome factory grid heater to...

Brighten up your driving experience with this simple upgrade inside your fuse box. Simply install the GM All Lights On Module to allow your high-beams, low-beams and fog lamps to simultaneously...

If you're running an aftermarket positive displacement lift pump like our PowerFlo on your Duramax our fuel primer bulb sealing kit will allow you to eliminate the leak prone primer bulb from your...

Extension harness for use with air intake sensors on 2013-2018 Dodge Ram with 6.7L Cummins.Experience unparalleled performance and precision with the FLEECE FPE-HAR-67-IAT-EXT Intake Air Temperature...

Regulator extension harness for use with Bosch CP3's used in 6.6L Duramax applications.The FLEECE FPE-HAR-CP3-EXT CP3 Regulator Extension Harness is specifically engineered for 11-16 6.6L Duramax...

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...

Replacement connector with 6 inch 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...

Our 8 inch extension harness for the 2003-2018 Dodge RAM provides for additional routing clearance to a variety of sensors on the engine including the camshaft, crankshaft, and exhaust pressure...

Our replacement connector with 4.5 inch pigtail will get you back on the road quickly. Includes heat-sealable butt-style connectors.  Application Notes 2003-2018 Dodge RAM Camshaft Sensor (Mopar...

Replacement connector with 6 inch pigtail for use on the 6.7L Cummins. Includes heat-sealable butt-style connectors. Produced in-house, our manufacturing process includes fully automated wire cutting...

Replacement connectors with 6 inch pigtail for use on the Cummins engine, this kit includes BOTH sides of the connector with flying leads to allow you to repair both sides when damaged by a broken...

Replacement connectors with 6 inch pigtail for use on the Cummins engine, this kit includes BOTH sides of the connector with flying leads to allow you to repair both sides when damaged by a broken...

Replacement connector with 6 inch pigtail for use on the 6.7L Cummins, including ISL and ISX engines. Includes heat-sealable butt-style connectors. Produced in-house, our manufacturing process...

Replacement EGR bypass valve pigtail for the 2013-2022 6.7L Cummins. Includes heat-sealable butt-style connectors. Produced in-house, our manufacturing process includes fully automated wire cutting...

Our replacement fan extension harness for the 2013-2018 Ram with 6.7L Cummins allows you to repair a broken or damaged harness without needing to replace the entire fan and clutch assembly. This...

Our replacement fan extension harness for the 2019-2024 Ram with 6.7L Cummins allows you to repair a broken or damaged harness without needing to replace the entire fan and clutch assembly. This...

Replacement Fuel Heater and Turbo Wastegate Solenoid Electrical Connector with 6 inch Pigtail for the Cummins engines. Includes heat-sealable butt-style connectors. Produced in-house, our...

Replacement connector with 6 inch pigtail for use on the 6.7L Cummins and other vehicle applications. Produced in-house, our manufacturing process includes fully automated wire cutting and terminal...

Replacement connector and 6 inch pigtail for the fuel injector wiring harness connector where it mates to the rocker box wiring harness on MY 2003-2005 5.9L Cummins equipped Ram trucks.  Includes...

Cummins injector harness connector with 6 inch pigtail for 2006-2022 5.9L and 6.7L Cummins engines. Two of these connectors are utilized on the engine and connect the injector harness to the valve...

Replacement connector with 6 inch pigtail for use on the 6.7L Cummins enigines and HE400VG/HE451VE turbochargers. Produced in-house, our manufacturing process includes fully automated wire cutting...

Cummins MAP sensor connector with 6 inch pigtail for 2003-2007 5.9L Cummins engines. Includes heat-sealable butt-style connectors. Produced in-house, our manufacturing process includes fully...

Replacement 48RE neutral safety switch connector with 6 inch pigtail for use on the 2006-2007 5.9L Cummins. Produced in-house, our manufacturing process includes fully automated wire cutting and...

Replacement fuel rail pressure sensor pigtail for the 2013-2024 6.7L Cummins. Includes heat-sealable butt-style connectors. Produced in-house, our manufacturing process includes fully automated wire...

Replacement connector with 6 inch pigtail. Includes heat-sealable butt-style connectors. Produced in-house, our manufacturing process includes fully automated wire cutting and terminal crimping to...