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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Lift Pump Pigtail for 11-16 Ford Powerstroke
Regular price $38.99 USDSale price $38.99 USD Regular priceUnit price / per$40.94 USDSale -
Camshaft Position Sensor Pigtail for 2003-2010 Ford 6.0/6.4 Powerstroke Fleece Performance
Regular price $37.99 USDSale price $37.99 USD Regular priceUnit price / per$39.89 USDSale -
Injector Connector with Pigtail for 2006-Present RAM Cummins 5.9/6.7L Fleece Performance
Regular price $22.99 USDSale price $22.99 USD Regular priceUnit price / per$24.14 USDSale -
Fuel Pressure Regulator (FPR) Wiring Harness for 2001-2010 6.6L Duramax Fleece Performance
Regular price $69.99 USDSale price $69.99 USD Regular priceUnit price / per$73.49 USDSale -
Rail Pressure Sensor Harness for 06-10 6.6L Duramax Fleece Performance
Regular price $79.99 USDSale price $79.99 USD Regular priceUnit price / per$83.99 USDSale -
NSBU Pigtails for 2001-2004 GM Trucks with Allison Transmission Fleece Performance
Regular price $79.99 USDSale price $79.99 USD Regular priceUnit price / per$83.99 USDSale -
Cooling Fan Extension Harness for 13-18 Cummins Equipped Ram
Regular price $45.99 USDSale price $45.99 USD Regular priceUnit price / per$48.29 USDSale -
Cummins Valve Cover Conversion Harness (03-05 to 2006-2018) Fleece Performance
Regular price $139.99 USDSale price $139.99 USD Regular priceUnit price / per$146.99 USDSale -
Duramax Fan Extension Harness (L5P) Fleece Performance
Regular price $45.99 USDSale price $45.99 USD Regular priceUnit price / per$48.29 USDSale -
Duramax MAP/BARO Sensor Pigtail 01-07 Fleece Performance
Regular price $27.99 USDSale price $27.99 USD Regular priceUnit price / per$29.39 USDSale -
Duramax Oil Pressure Sensor Pigtail LB7 Fleece Performance
Regular price $18.99 USDSale price $18.99 USD Regular priceUnit price / per$19.94 USDSale -
MAF Sensor Pigtail for 6.7 Cummins Fleece Performance
Regular price $29.99 USDSale price $29.99 USD Regular priceUnit price / per$31.49 USDSale -
Fuel Rail Pressure Harness for LML 6.6L Duramax Fleece Performance
Regular price $69.99 USDSale price $69.99 USD Regular priceUnit price / per$73.49 USDSale -
Transmission Input Speed Sensor Pigtail for 15-19 GM with Allison Transmission
Regular price $12.99 USDSale price $12.99 USD Regular priceUnit price / per$13.64 USDSale -
CP3 Regulator Extension Harness for 11-16 6.6L Duramax Fleece
Regular price $29.99 USDSale price $29.99 USD Regular priceUnit price / per$31.49 USDSale -
Cummins Valve Cover Conversion Harness (2006-2018 to 03-05) Fleece Performance
Regular price $139.99 USDSale price $139.99 USD Regular priceUnit price / per$146.99 USDSale -
Cummins Cooling Fan Pigtail (2013-2022) Fleece Performance
Regular price $59.99 USDSale price $59.99 USD Regular priceUnit price / per$62.99 USDSale -
Return Fuel Pressure Test Port for 2011-2016 LML Duramax Fleece Performance
Regular price $29.99 USDSale price $29.99 USD Regular priceUnit price / per$31.49 USDSale -
Fuel Rail Pressure Sensor Pigtail for 13-24 Ram with Cummins Fleece Performance
Regular price $56.99 USDSale price $56.99 USD Regular priceUnit price / per$59.84 USDSale -
Duramax Crankshaft Position Sensor Pigtail (2004.5-2016)
Regular price $21.99 USDSale price $21.99 USD Regular priceUnit price / per$23.09 USDSale -
Transmission Throttle Valve Connector Pigtail Fleece Performance
Regular price $29.99 USDSale price $29.99 USD Regular priceUnit price / per$31.49 USDSale -
ECM Connector Repair Kit for Cummins CM2350/2450 - 96 Pin (Brown) Fleece Performance
Regular price $189.00 USDSale price $189.00 USD Regular priceUnit price / per$198.45 USDSale -
GM All Lights On Module 2003-2007 Select Models Fleece Performance
Regular price $24.95 USDSale price $24.95 USD Regular priceUnit price / per$26.20 USDSale -
Cummins Crankshaft and Camshaft Sensor Pigtail 2003-2018 Dodge 2500/3500 Fleece Performance
Regular price $29.99 USDSale price $29.99 USD Regular priceUnit price / per$31.49 USDSale -
Charging Circuit Harness for 17-18 Ford 6.7L Powerstroke Fleece Performance
Regular price $135.99 USDSale price $135.99 USD Regular priceUnit price / per$142.79 USDSale -
Fuel Heater Connector and 6 Inch Pigtail for RAM Cummins 5.9/6.7L Fleece Performance
Regular price $17.99 USDSale price $17.99 USD Regular priceUnit price / per$18.89 USDSale -
Turbocharger Turbine Speed Sensor Pigtail Fleece Performance
Regular price $36.99 USDSale price $36.99 USD Regular priceUnit price / per$38.84 USDSale -
ECM Connector Repair Kit for Cummins CM2350/2450 - 96 Pin (Green) Fleece Performance
Regular price $189.00 USDSale price $189.00 USD Regular priceUnit price / per$198.45 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!

























