Collection: Fleece Performance Engineering
Fleece Performance – Premium Diesel Performance Parts & Upgrades
Fleece Performance is a pioneer in the diesel performance industry, offering high-quality, innovative parts designed to enhance power, efficiency, and reliability. Whether you own a Cummins, Duramax, or Power Stroke engine, our products are engineered to deliver superior performance, meeting the...
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Fleece Performance FPE-61-10001-P-CL Freedom Series Duramax Cylinder Head with Cupless Injector Bore for 2001-2004 LB7 (Passenger Side)
Regular price $1,199.00 USDSale price $1,199.00 USD Regular priceUnit price / per -
Fleece Performance FPE-61-10002-D Freedom Series Duramax Cylinder Head for 2004.5-2005 LLY (Driver Side)
Regular price $1,199.00 USDSale price $1,199.00 USD Regular priceUnit price / per$1,149.00 USD -
Fleece Performance FPE-61-10002-P Freedom Series Duramax Cylinder Head for 2004.5-2005 LLY (Passenger Side)
Regular price $1,199.00 USDSale price $1,199.00 USD Regular priceUnit price / per -
Fleece Performance FPE-61-10003-D Freedom Series Duramax Cylinder Head for 2006-2010 LBZ/LMM (Driver Side)
Regular price $1,199.00 USDSale price $1,199.00 USD Regular priceUnit price / per -
Fleece Performance FPE-61-10003-P Freedom Series Duramax Cylinder Head for 2006-2010 LBZ/LMM (Passenger Side)
Regular price $1,199.00 USDSale price $1,199.00 USD Regular priceUnit price / per -
Fleece Performance FPE-61-10004-P Freedom Series Duramax Cylinder Head for 2011-2016 LML (Passenger Side)
Regular price $1,199.00 USDSale price $1,199.00 USD Regular priceUnit price / per -
Fleece Performance FPE-61-10009-HD 5.9L VP 98.5-02 Freedom Series Cummins Cylinder Head (Street-HD)
Regular price $2,949.00 USDSale price $2,949.00 USD Regular priceUnit price / per -
Fleece Performance Turbo Drain Adapter FPE-78-14-TDA
Regular price $12.95 USDSale price $12.95 USD Regular priceUnit price / per -
Fleece Performance Universal 45 Degreeree Turbo Drain Nipple with O-ring FPE-78HS-45-TDA
Regular price $34.99 USDSale price $34.99 USD Regular priceUnit price / per -
Fleece Performance All Lights On FPE-ALO
Regular price $21.95 USDSale price $21.95 USD Regular priceUnit price / per -
Fleece Performance All Lights On for 2007-2017 Toyota Tundra FPE-ALO-TUNDRA-0717
Regular price $27.99 USDSale price $27.99 USD Regular priceUnit price / per -
Fleece Performance '-6 to 9/16 inch-18 Straight Male Black Fleece Performance w/ O-Ring FPE-APT-916-06
Regular price $10.99 USDSale price $10.99 USD Regular priceUnit price / per -
Fleece Performance Replacement O-ring Kit for Cummins Coolant Bypass Kits FPE-CLNTBYPS-CR-ORING-KIT
Regular price $9.45 USDSale price $9.45 USD Regular priceUnit price / per -
Fleece Performance Replacement Coolant Bypass Hose for 2019-Present Ram with 6.7L Cummins FPE-CLNTBYPS-HS-19
Regular price $84.99 USDSale price $84.99 USD Regular priceUnit price / per -
Fleece Performance Replacement EPDM Cooland Bypass Hose MY2003-2005 FPE-CLNTBYPS-HS-HC-0305
Regular price $25.99 USDSale price $25.99 USD Regular priceUnit price / per -
Fleece Performance Replacement EPDM Cooland Bypass Hose MY2006-2007 FPE-CLNTBYPS-HS-HC-0607
Regular price $27.99 USDSale price $27.99 USD Regular priceUnit price / per -
Fleece Performance 3/8 Inch CP3 Return Fitting FPE-CP3-RTRN
Regular price $15.95 USDSale price $15.95 USD Regular priceUnit price / per -
Fleece Performance 2003-2016 Cummins CP3X2 Harness FPE-CP3X2
Regular price $72.13 USDSale price $72.13 USD Regular priceUnit price / per -
Fleece Performance FPE-CRR-20-0806 Regulated Return Fuel Distribution Block for 2007.5-2018 Cummins
Regular price $618.00 USDSale price $618.00 USD Regular priceUnit price / per -
Fleece Performance Cummins Turbo Drain Tube Adapter FPE-CTDA-10AN
Regular price $19.99 USDSale price $19.99 USD Regular priceUnit price / per -
Fleece Performance Cummins Turbo Drain Adapter to 7/8 Inch Hose For 98.5-21 RAM 2500/3500 FPE-CTDA-78HS
Regular price $19.99 USDSale price $19.99 USD Regular priceUnit price / per -
Fleece Performance FPE-CUMM-CP3-12MM-5.9 PowerFlo 1000 CP3 Pump for 2003-2007 5.9L Cummins
Regular price $2,649.00 USDSale price $2,649.00 USD Regular priceUnit price / per -
Fleece Performance OE Replacement Rocker Arm Assembly for 5.9L and 6.7L Cummins Engines FPE-CUMM-RAA-CR
Regular price $119.99 USDSale price $119.99 USD Regular priceUnit price / per -
Fleece Performance Replacement Thermostat Housing with Auxiliary Port RAM with 5.9L and 6.7L Cummins FPE-CUMM-TH-1318
Regular price $129.99 USDSale price $129.99 USD Regular priceUnit price / per -
Fleece Performance Replacement Thermostat Housing with Auxiliary Port 2019-Present RAM 6.7L Cummins FPE-CUMM-TH-19
Regular price $129.99 USDSale price $129.99 USD Regular priceUnit price / per -
Fleece Performance FPE-DMAX-CP3 New Bosch CP3 for 2001-2016 Duramax
Regular price $1,379.00 USDSale price $1,379.00 USD Regular priceUnit price / per -
Fleece Performance Black Anodized Billet Fuel Cap For 13-18 Cummins FPE-FC-1316-BLK
Regular price $37.14 USDSale price $37.14 USD Regular priceUnit price / per -
Fleece Performance Green Anodized Billet Fuel Cap For 2013-2018 Cummins FPE-FC-1316-GRN
Regular price $39.00 USDSale price $39.00 USD Regular priceUnit price / per
Unleash the Power of Diesel Trucks with Fleece Performance Engineering!
Discover the pinnacle of diesel performance with Fleece Performance Engineering's cutting-edge parts. Experience unrivaled power, efficiency, and excellence as you take your truck to new heights of performance. Our precision-engineered products ensure seamless integration, making every ride a seamless joy. Say goodbye to average and embrace extraordinary acceleration, towing prowess, and fuel efficiency.
Join the league of truck owners who dominate the road and conquer tough terrains effortlessly. Fueled by our commitment to excellence and innovation, Fleece Performance Engineering offers you a lasting partnership for all your diesel needs.
Upgrade your diesel truck today and embrace a new era of diesel dominance. Order your Fleece Performance Engineering products now and unleash the true potential of your truck!



























