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Fleece Performance Brand

437 products
Fleece Performance Engineering is a leading manufacturer of aftermarket diesel performance products. With a reputation for innovation, quality, and service, our products push the limits of diesel performance technology. Products such as the Cheetah line of Turbochargers, the TapShifter, and the TurboBrake have established Fleece Performance as an industry innovator.
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Fleece | 2003-2005 Dodge Ram 5.9L Cummins Auto Trans Coolant Bypass Kit - Black
$359.00
$359.00
Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. Thi...
Fleece | 2020-2024 GM Duramax 6.6L L5P Duramax (Short Bed) Fuel Filter Upgrade Kit Fleece | 2020-2024 GM Duramax 6.6L L5P Duramax (Short Bed) Fuel Filter Upgrade Kit
$229.00
$229.00
The patent pending Fleece Performance L5P fuel filter upgrade kit allows you to seamlessly change over from the stock cartridge style filter to a spin-on canister style filter. The canister filter ...
Fleece | 1994-2018 Dodge Ram 2500 / 3500 Cummins Replacement O-Ring Kit For Coolant Bypass Kit Fleece | 1994-2018 Dodge Ram 2500 / 3500 Cummins Replacement O-Ring Kit For Coolant Bypass Kit
$23.68
$23.68
Replacement O-ring Kit for all Fleece Cummins Coolant Bypass Kits includes 3 new square cut O-rings, 1 new standard O-ring, and 2 new O-rings for the AN fittings.
FLEECE PERFORMANCE | 2007-2021 GM UNIVERSAL ALL LIGHTS ON MODULE Fleece | 2007-2021 GM Universal All Lights On Module
$34.31
$34.31
Stay safer, see further, and brighten your nighttime driving experience with our All Lights On®.  The All Lights On allows your high beams, low beams, and fog lamps to all be on simultaneously to i...
Fleece | 2003-2012 Dodge Ram 2500 / 3500 Cummins Fan Drive Pulley (Bare Aluminum Finish) Fleece | 2003-2012 Dodge Ram 2500 / 3500 Cummins Fan Drive Pulley (Bare Aluminum Finish)
$88.22
$88.22
Billet aluminum fan drive pulley in with bare aluminum finish that can be coated or polished.
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Fleece | 2003-2018 Dodge Ram 2500 / 3500 Cummins Upper Fan Pulley Idler (Bare Aluminum Finish) Fleece | 2003-2018 Dodge Ram 2500 / 3500 Cummins Upper Fan Pulley Idler (Bare Aluminum Finish)
$86.01
$86.01
Billet aluminum upper fan idler pulley in bare aluminum finish. Complete with bearing. Our pulley must be used with a factory bolt and spacer. Some aftermarket pulleys will switch to a different le...