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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Duramax Billet Coolant Block Off Plate 2001-2017 Fleece Performance
Regular price $55.00 USDSale price $55.00 USD Regular priceUnit price / per$58.79 USDSale -
Turbocharger Installation Kit for 2003-2007 5.9L Cummins CW Turbochargers Fleece Performance
Regular price $35.99 USDSale price $35.99 USD Regular priceUnit price / per$37.79 USDSale -
PowerFlo 1000 CP3 for 2007.5-2018 6.7L Cummins Fleece Performance
Regular price $2,599.00 USDSale price $2,599.00 USD Regular priceUnit price / per$2,649.00 USDSale -
Fire Ring Head Gasket for 6.7L Cummins Fleece Performance
Regular price $349.00 USDSale price $349.00 USD Regular priceUnit price / per$366.45 USDSale -
Heater Feed and Return Hose Kit for 2013-2024 Cummins Fleece Performance
Regular price $109.99 USDSale price $109.99 USD Regular priceUnit price / per$115.49 USDSale -
VGT Actuator Harness Adapter Fleece Performance
Regular price $44.95 USDSale price $44.95 USD Regular priceUnit price / per -
HP Fuel Line Adaptation Kit - 5.9L to 6.7L Cummins CP3 Fleece Performance
Regular price $119.99 USDSale price $119.99 USD Regular priceUnit price / per$125.99 USDSale -
03-18 Cummins CP3 Nut Cover Fleece Performance
Regular price $64.82 USDSale price $64.82 USD Regular priceUnit price / per$68.24 USDSale -
Turbocharger Oil Feed Line for S300 and S400 Turbos in the 2nd Gen Location on Cummins Engines Fleece Performance
Regular price $69.99 USDSale price $69.99 USD Regular priceUnit price / per$73.49 USDSale -
Cummins Dual Pump Idler Pulley Spacer and Bolt For use with FPE-34022 Fleece Performance
Regular price $48.98 USDSale price $48.98 USD Regular priceUnit price / per$51.43 USDSale -
Replacement EPDM Cooland Bypass Hose MY2003-2005 Fleece Performance
Regular price $25.99 USDSale price $25.99 USD Regular priceUnit price / per$27.29 USDSale -
2003-2016 Cummins Factory Oil Feed Line Replacement Fleece Performance
Regular price $69.99 USDSale price $69.99 USD Regular priceUnit price / per$73.49 USDSale -
OE Replacement Head Gasket for 5.9L Cummins (Thick) Fleece Performance
Regular price $159.99 USDSale price $159.99 USD Regular priceUnit price / per$167.99 USDSale -
05-09 Dodge PowerFlo In-tank Lift Pump Assembly Fleece Performance
Regular price $799.00 USDSale price $799.00 USD Regular priceUnit price / per$829.00 USDSale -
5.9L Dual Pump Bracket and Mounting Hardware Fleece Performance
Regular price $94.99 USDSale price $94.99 USD Regular priceUnit price / per$99.00 USDSale -
Spoke Design Cummins Dual Pump Pulley Fleece Red Fleece Performance
Regular price $219.00 USDSale price $219.00 USD Regular priceUnit price / per$229.95 USDSale -
Replacement EPDM Cooland Bypass Hose MY2006-2007 Fleece Performance
Regular price $27.99 USDSale price $27.99 USD Regular priceUnit price / per$29.39 USDSale -
Coolant Bypass Kit for 2019-Present Ram with 6.7L Cummins Fleece Performance
Regular price $379.99 USDSale price $379.99 USD Regular priceUnit price / per$398.99 USDSale -
5/8 Inch Hose Barb to 3/4 Inch-16 O-ring (-8 AN) Fleece Performance
Regular price $11.99 USDSale price $11.99 USD Regular priceUnit price / per$12.99 USDSale -
Fleece Performance Turbo Drain Line Kit for 07.5-18 RAM 2500/3500 Cummins VGT Fleece Performance
Regular price $99.99 USDSale price $99.99 USD Regular priceUnit price / per$104.99 USDSale -
2007.5-2012 Exhaust Back Pressure Relocation Kit for 6.7 Cummins
Regular price $114.99 USDSale price $114.99 USD Regular priceUnit price / per$120.74 USDSale -
1/2 Inch Hose Barb to 3/4 Inch-16 O-ring (-8 AN) Fleece Performance
Regular price $10.99 USDSale price $10.99 USD Regular priceUnit price / per$11.99 USDSale -
Cummins Turbo Drain Tube Adapter Fleece Performance
Regular price $19.99 USDSale price $19.99 USD Regular priceUnit price / per$20.99 USDSale -
Cummins Coolant Bypass Kit VP 98.5-02 with Stainless Steel Braided Line Fleece Performance
Regular price $379.00 USDSale price $379.00 USD Regular priceUnit price / per$397.95 USDSale -
Coolant Bypass Kit for 2013-2018 RAM with 6.7L Cummins Fleece Performance
Regular price $379.99 USDSale price $379.99 USD Regular priceUnit price / per$398.99 USDSale -
34.5 Inch Common Rail/VP44 Cummins Coolant Bypass Hose Stainless Steel Braided Fleece Performance
Regular price $75.76 USDSale price $75.76 USD Regular priceUnit price / per$79.75 USDSale -
Turbo Drain Service Kit for Fleece Performance Cummins Drain Tubes
Regular price $4.75 USDSale price $4.75 USD Regular priceUnit price / per$4.99 USDSale -
Replacement O-ring Kit for Cummins Coolant Bypass Kits Fleece Performance
Regular price $9.45 USDSale price $9.45 USD Regular priceUnit price / per$9.95 USDSale
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!










