filter

Increase your LB7’s potential with this simple but effective upgrade. Back-to-back dyno pulls showed an increase of 15hp with this Fleece Performance Modified LB7 Intake Horn – that’s about the cheapest 15hp from a bolt on you’ll find anywhere! Painted black with a Fleece logo. Kit...

Fleece Performance Cheetah Turbochargers set the industry standard for power, quality, and reliability. The Cheetah series does not require an expensive kit, just bolt it on and go. Designed as a stock appearing, drop in replacement turbocharger capable of much more! With our exclusive 63mm FMW comp...

The PowerFlo lift pump is the latest OEM replacement performance lift pump from the diesel experts at Fleece Performance.  The PowerFlo is the only in-tank lift pump capable of supporting up to 800 hp!FEATURESDirect OEM In-Tank Replacement:The PowerFlo Lift Pump retains the factory water-in-fue...

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, fully assembled, and r...

Replacement connector with 6" pigtail for use on the 2001-2002 LB7 Duramax oil pressure 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 t...

ALL NEW! Freedom Series cylinder heads for the LB7 6.6L Duramax now with a cupless injector bore - save time and money with no more injector cups to install, leak, or worry about. Each cylinder head is assembled from a new casting in our state-of-the-art Freedom Racing Engine shop and is guaranteed ...

Replacement connector with 6" pigtail for use on the 6.6L Duramax engine and other vehicle 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 get your truck or car ...

PROBLEM: If you are running an aftermarket pump that is mounted external of the fuel tank, you will need to install a draw straw or drill your fuel tank to accommodate a sump.  Each of these has some pretty significant drawbacks including the ¼ tank issues that result in cavitation of the...

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 upgrade your stock lines, we’ve got you covered with our Fleece Performance LB7 Injection Lines! This...

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 upgrade your stock lines, we’ve got you covered with our direct replacement LB7 injection lines! An u...

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 upgrade your stock lines, we’ve got you covered with our direct replacement LB7 injection lines! An u...

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 upgrade your stock lines, we’ve got you covered with our direct replacement LB7 injection lines! An u...

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 upgrade your stock lines, we’ve got you covered with our direct replacement LB7 injection lines! An u...

Replacement connector with 6" pigtail for use on the 6.6L Duramax engine including MAP, BARO, camshaft, and crankshaft sensors. 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...

TufShafts are a direct replacement upgrade shafts for any 2001-2010 GM 2500-3500 with a 9.25” AAM front axle. They are designed to eliminate the stock passenger side split axle shaft that is prone to breaking under high torque situations, as well as the short drive side axle shaft that is prone to...

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 fuel system.  The sealing cap includes a 1/8” NPT port to feed a low pressure fuel gauge or ca...

Replacement connector with 6" pigtail for use on the Duramax engine and many other vehicle 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 get your truck or car ...

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 the #4 cam journal bearing, which can be restrictive, or even result in an oil blockag...

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.Solution: Fleece Performance's remote oil feed line allows you to feed the turbo directly from the...

Get rid of oil leaks from the harness connector with our replacement internal wiring harness seal for the Allison LCT and GM 4T65-E. This 20-way pin seal is a direct replacement for the hard to find OE seals and includes a replacement O-ring for the connector body and new connector body. This k...

Get rid of oil leaks from the harness connector with our replacement internal wiring harness seal for the Allison LCT and GM 4T65-E. This 20-way pin seal is a direct replacement for the hard to find OE seals and includes a replacement O-ring for the connector body and new connector body. FITMEN...

Replacement connector with 4.5" pigtail for use in multiple locations on the Duramax, Ram with Cummins, and other GM vehicles.  Replaces OEM Connector 13343443Replaces AC Delco Connector 13384371, 13585849, 13587776, 89046837, 13343443, PT2971 APPLICATION NOTES2017-2022 L5P Rear Wheel...

Cummins MAP sensor connector with 6" pigtail for 2003 - 2007 5.9L Cummins engines. Includes heat-sealable butt-style connectors. 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 t...

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.  FEATURES1.25 mm thicknessMulti-layer steel constructionMeets or exceeds OE specifications AP...

Eliminate the installation headaches associated with a non-flexible OE drain line with our ALL NEW silicone hose drain tube kit. This turbo drain kit is designed for use with all 5.9L Cummins equipped Dodge Ram factory style turbochargers and aftermarket drop-in replacements like our Cheetah Series....

Replacement oil pressure sensor pigtail for use on the 2003-2010 6.6L Duramax. 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 the road quickly.F...

Replacement connectors with 6" pigtail on either end for use on the Cummins engine and other vehicle 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 get your tru...

Backordered with No ETA   **Updated on 11/21/2023**Anodized aluminum 3/8" quick connect to -8AN male adapter fitting. Fits 2003-2018 Dodge Ram with Cummins OE sending unit sending unit output to allow you to easily adapt aftermarket pumps and filters to the OE sending unit, including ou...

Replacement front cover dowels for use on Cummins 5.9L and 6.7L engines. Kit includes 2 dowels. APPLICATION NOTESReplaces Cummins part number 3949326Fits MY 2003-2018 Fleece: FPE-CUMM-FGHD-KIT...

Replacement engine starter connector with 6" pigtail for use on the 2003-2018 Cummins. 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 the road q...

Our replacement connector with 6" pigtail will get you back on the road quickly.  Includes heat-sealable butt-style connectors.  APPLICATION NOTES2003-2018 Dodge RAM Camshaft Sensor (Mopar p/n: 2872277)2003-2018 Dodge RAM Crankshaft Position Sensor (Mopar p/n: 2872277)2003-2018 Dodge ...

Our 8" 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 sensors. Produced in-house, our manufacturing process includes fully automated wire cutting and terminal crimp...

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.  Includes a quantity of 6 nuts. APPLICATION NOTESReplaces Cummins P/N: ...

Replacement high pressure fuel lines from Fleece Performance.  These are a direct replacement for your cracked, broken, or leaking injector lines. APPLICATION NOTESReplaces GM Part # 97378825 WARRANTY1 Year Limited Parts WarrantyFleece: FPE-FL-LLY-18...

Replacement high pressure fuel lines from Fleece Performance.  These are a direct replacement for your cracked, broken, or leaking injector lines. APPLICATION NOTESReplaces GM Part # 97378828 WARRANTY1 Year Limited Parts WarrantyFleece: FPE-FL-LLY-27...

Replacement high pressure fuel lines from Fleece Performance.  These are a direct replacement for your cracked, broken, or leaking injector lines. APPLICATION NOTESReplaces GM Part # 97378826 WARRANTY1 Year Limited Parts WarrantyFleece: FPE-FL-LLY-36...

Replacement high pressure fuel lines from Fleece Performance.  These are a direct replacement for your cracked, broken, or leaking injector lines. APPLICATION NOTESReplaces GM Part # 97378827 WARRANTY1 Year Limited Parts WarrantyFleece: FPE-FL-LLY-45...

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. APPLICATION NOTESReplaces GM Part# 97378825 (qty 2)Replaces GM Part# 97378828 (qty 2)Replaces GM P...

Our Fleece Performance adapter harness allows the 2004.5-2005 LLY Duramax to run the updated turbo vane position sensor that is used on 2006 and up Garrett turbochargers. Produced in-house, our manufacturing process includes fully automated wire cutting and terminal crimping to ensure you get the hi...

Replacement connector with 6" pigtail for use on the 6.6L Duramax turbocharger vane position 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...

The billet aluminum HE351CW Actuator Solenoid Plug w/ Boost Reference allows you to block the boost reference port but still provide the wastegate with a boost reference.Part number: FPE-34804...

The Ford 6.0L VNT Cheetah Turbocharger is a drop-in replacement turbocharger for 2003-2007 6.0L Ford diesels. It comes with a Fleece Performance Engineered 63mm FMW compressor wheel and high flow 66mm Cheetah turbine wheel. This stock replacement turbo is guaranteed to enhance your driving experienc...

The PowerFlo lift pump is the latest OEM replacement performance lift pump from the diesel experts at Fleece Performance.  The PowerFlo is the only in-tank lift pump capable of supporting up to 800 hp! .  The PowerFlo lift pump provides positive fuel pressure to the CP3, decreasing strain ...

Replacement connector with 6" pigtail for use in multiple locations on the Duramax and Powerstroke engines. 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 c...

Replacement crankshaft position sensor connector with 6" Pigtail for the 2004-2016 6.6L Duramax engines. Includes heat-sealable butt-style connectors. Produced in-house, our manufacturing process includes fully automated wire cutting and terminal crimping to ensure you get the highest quality replac...

Our Fuel Pressure Regulator (FPR) harness for the 2006-2010 6.6L Duramax is a direct replacement for GM Part Number: 97378671 (MY 2006-2010). Produced in-house, our manufacturing process includes fully automated wire cutting and terminal crimping to ensure you get the highest quality replacement par...

Replacement high pressure fuel lines from Fleece Performance.  These are a direct replacement for your cracked, broken, or leaking injector lines. APPLICATION NOTESReplaces GM Part # 98006523 WARRANTY1 Year Limited Parts WarrantyFleece: FPE-FL-LBZLMM-18...

Replacement high pressure fuel lines from Fleece Performance.  These are a direct replacement for your cracked, broken, or leaking injector lines. APPLICATION NOTESReplaces GM Part # 98006527 WARRANTY1 Year Limited Parts WarrantyFleece: FPE-FL-LBZLMM-27...