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...
-
Fleece Injector Return Line Repair Kit for 2011-2016 6.7L Power Stroke
Regular price From $69.99 USDSale price From $69.99 USD Regular priceUnit price / per -
Fleece Performance FPE-FL-DMAX-LBZLMM-SET High-Pressure Injection Line Kit for LBZ/LMM Duramax
Regular price $569.00 USDSale price $569.00 USD Regular priceUnit price / per -
Fleece Performance FPE-TL-LML-1114 Transmission Cooler Line Set for 2011-2014 LML Duramax
Regular price $329.99 USDSale price $329.99 USD Regular priceUnit price / per -
Fleece Performance FPE-SF-GM-0410 SureFlo® Performance Sending Unit for 2004.5-2010 Duramax
Regular price $379.00 USDSale price $379.00 USD Regular priceUnit price / per -
Fleece Performance FPE-LML-CP3-WP LML CP3 Conversion Kit with CP3
Regular price $2,095.00 USDSale price $2,095.00 USD Regular priceUnit price / per -
Fleece Performance FPE-L5P-FFBA-1719 L5P Fuel Filter Upgrade Kit (2017-2019)
Regular price $249.00 USDSale price $249.00 USD Regular priceUnit price / per -
Fleece Performance FPE-L5P-FFBA-20 L5P Fuel Filter Upgrade Kit (2020-2024 Short Bed)
Regular price $249.00 USDSale price $249.00 USD Regular priceUnit price / per -
Fleece Performance FPE-34783 Auxiliary Fuel Filter and Line Kit for 2003-2018 Dodge Cummins
Regular price $349.00 USDSale price $349.00 USD Regular priceUnit price / per -
Fleece Performance FPE-CLNTBYPS-CUMMINS-VP-SS Coolant Bypass Kit for 5.9L 12V Cummins (1994-1998) with Stainless Steel Braided Line
Regular price $379.00 USDSale price $379.00 USD Regular priceUnit price / per -
Fleece Performance FPE-DMAX-CBOP 6.6L Duramax Billet Coolant Block Off Plate (2001-2023)
Regular price $55.00 USDSale price $55.00 USD Regular priceUnit price / per -
Fleece Performance FPE-GHD-67-1316 Grid Heater Delete and High Flow Intake Plenum for 2013-2018 6.7L Cummins
Regular price $213.29 USDSale price $213.29 USD Regular priceUnit price / per -
Fleece Performance FPE-34145 Replacement Charge Air (CAC) Boot
Regular price $67.83 USDSale price $67.83 USD Regular priceUnit price / per -
Fleece Performance FPE-TURBO-INST-KIT-CUMM59 Cummins S300-S400 Turbo Installation Kit (5.9L)
Regular price $180.00 USDSale price $180.00 USD Regular priceUnit price / per -
Fleece Performance FPE-SF-FMC-9907-SB SureFlo Performance Sending Unit for 1999-2007 Ford Powerstroke (Short Bed)
Regular price $379.00 USDSale price $379.00 USD Regular priceUnit price / per -
Fleece Performance Donaldson P553203 Replacement Fuel Filter DON-P553203
Regular price $24.99 USDSale price $24.99 USD Regular priceUnit price / per -
Fleece Performance Alternator Pigtail for 2007-2022 RAM with Cummins FPE-HAR-CUMM-ALT-0722
Regular price $20.99 USDSale price $20.99 USD Regular priceUnit price / per -
Fleece Performance Turbo Drain Tube Kit for 1994-2002 5.9L Cummins FPE-CTDT-HX35-KIT
Regular price $99.99 USDSale price $99.99 USD Regular priceUnit price / per -
Fleece Performance Neutral Safety Switch Connector Pigtail FPE-HAR-CUMM-NSS-PT
Regular price $39.99 USDSale price $39.99 USD Regular priceUnit price / per -
Fleece Performance FPE-61-10013-HD Freedom Series 12-Valve Cummins Cylinder Head (Street-HD)
Regular price $1,749.00 USDSale price $1,749.00 USD Regular priceUnit price / per -
Fleece Performance FPE-CUMM-67L-LB-HD Freedom Street HD Series 6.7L Cummins Long Block for 2013-2018
Regular price $15,499.00 USDSale price $15,499.00 USD Regular priceUnit price / per -
Fleece Performance 2007.5-2012 Exhaust Back Pressure Relocation Kit for 6.7 Cummins FPE-CUMM-EBP-KIT-0712
Regular price $114.99 USDSale price $114.99 USD Regular priceUnit price / per -
Fleece Performance Cummins Fuel Filter Delete, Water in Fuel Sensor Plug (M14x2.0) FPE-34143-A
Regular price $12.33 USDSale price $12.33 USD Regular priceUnit price / per -
Fleece Performance Universal Pre-Formed 5/8 Inch Coolant Hose with 90 Degree Ends and T-fitting (1 Inch ID on the T) FPE-34258-A
Regular price $32.23 USDSale price $32.23 USD Regular priceUnit price / perSold out -
Fleece Performance Universal Pre-Formed 5/8 Inch Coolant Hose with 90 Degree Ends FPE-34574-A
Regular price $24.48 USDSale price $24.48 USD Regular priceUnit price / per -
Fleece Performance 2003-2012 Cummins Fan Drive Pulley Bare Aluminum Finish FPE-34660-AL
Regular price $85.49 USDSale price $85.49 USD Regular priceUnit price / per -
Fleece Performance FPE-61-10004-D Freedom Series Duramax Cylinder Head for 2011-2016 LML (Driver Side)
Regular price $1,199.00 USDSale price $1,199.00 USD Regular priceUnit price / per -
Fleece Performance '-8 to 3/4 Inch-16 Straight Male Black w/ O-Ring FPE-APT-34-08
Regular price $10.99 USDSale price $10.99 USD Regular priceUnit price / per -
Fleece Performance Replacement Oil Feed Line Fitting with sealing washer FPE-APT-M12-06
Regular price $13.95 USDSale price $13.95 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!






















