Coolant Bypass Kits

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  Fleece Performance

  Fleece Performance 03-07 Manual Transmission Cummins Coolant Bypass Kit w/ SS Braided Line

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  £465.60

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  £465.60

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  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...
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  Wehrli

  Wehrli Duramax Coolant Plug

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  £26.25

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  Billet Aluminum Black Anodized Coolant Plug for Duramax Engine Cover, for 1.1" bore. Includes high temperature silicone O-ring seal.
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  ATS Diesel

  ATS Diesel 2003-06 Ford 6.0L Powerstroke Performance Coolant Recirculation Kit

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  £183.74

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  ATS Diesel 2003-06 Ford 6.0L Powerstroke Performance Coolant Recirculation KitUser 1
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  Wehrli

  Wehrli 6.7 Cummins Coolant Fitting - 12 JIC

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  £50.40

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  6.7L Cummins Thick Flange #12 JIC Male Fitting for Coolant Port Behind Water Pump. Press Fit Connection with High Temp O-Ring Seal and Mounting Bolt Tab.
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  Wehrli

  Wehrli 6.7 Cummins No.10 JIC Coolant Fitting

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  £50.40

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  6.7L Cummins Thin Flange #10 JIC Male Fitting for Coolant Port Behind Water Pump. Press Fit Connection with High Temp O-Ring Seal and Mounting Bolt Tab.
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  Fleece Performance

  Fleece Performance 19-22 RAM 2500/3500 Cummins 6.7L Replacement Thermostat Housing w/Aux Port

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  £159.69

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  The Fleece Performance replacement thermostat housing with auxiliary port is a direct replacement part for model years 2019-2024 RAM with 6.7L Cummins. The auxiliary port is threaded to accept a -1...
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  Fleece Performance

  Fleece Performance 98.5-07 Dodge 2500/3500 Cummins Replacement Thermostat Housing w/Aux Port

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  £159.69

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  £159.69

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  The Fleece Performance replacement thermostat housing with auxiliary port is a direct replacement part for model years 1998.5-2007 RAM with 5.9L Cummins and 2013-2018 RAM with 6.7L Cummins. The aux...
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  Fleece Performance

  Fleece Performance 07.5-18 Dodge 2500/3500 Cummins 6.7L Exhaust Back Pressure Relocation Kit

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  £141.26

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  £141.26

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  The exhaust back pressure relocation Kit for 2007.5-2012 RAM w/ 6.7 Cummins will allow you to relocate the EBP sensor from the factory location on thermostat housing elbow to a new mounting block o...
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  Fleece Performance

  Fleece Performance 98.5-18 Dodge Cummins 34.5in Common Rail/VP44 Coolant Bypass Hose (SS-Braided)

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  £93.07

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  Fleece Performance 98.5-18 Dodge Cummins 34.5in Common Rail/VP44 Coolant Bypass Hose (SS-Braided)WarrantyThis Part Fits: Year Make Model Submodel 1998-2002 Dodge Ram 2500 Base 2003,2005-2010 D...
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  Fleece Performance

  Fleece Performance 98.5-18 Dodge Cummins 34.5in Common Rail/VP44 Coolant Bypass Hose (BLK-Braided)

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  £93.07

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  Fleece Performance 98.5-18 Dodge Cummins 34.5in Common Rail/VP44 Coolant Bypass Hose (BLK-Braided)WarrantyThis Part Fits: Year Make Model Submodel 1998-2002 Dodge Ram 2500 Base 2003,2005-2010 ...
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  Fleece Performance

  Fleece Performance 2019+ Ram 2500/3500 Cummins 6.7L Replacement Coolant Bypass Hose

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  £104.41

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  Replacement coolant bypass hose for our 2019+ Ram 6.7L Cummins coolant bypass kit. WarrantyThis Part Fits: Year Make Model Submodel 2019-2022 Ram 2500 Big Horn 2019-2022 Ram 2500 Laramie 201...
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  Fleece Performance

  Fleece Performance 94-98 Dodge Cummins 39.5in 12 Valve Coolant Bypass Hose (SS-Braided)

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  £103.58

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  Fleece Performance 94-98 Dodge Cummins 39.5in 12 Valve Coolant Bypass Hose (SS-Braided)WarrantyThis Part Fits: Year Make Model Submodel 1994-1998 Dodge Ram 2500 Base 1994-1998 Dodge Ram 3500 B...
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  Fleece Performance

  Fleece Performance 94-98 Dodge Cummins 39.5in 12 Valve Coolant Bypass Hose (BLK - Braided)

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  £103.58

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  £103.58

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  Fleece Performance 94-98 Dodge Cummins 39.5in 12 Valve Coolant Bypass Hose (BLK - Braided)WarrantyThis Part Fits: Year Make Model Submodel 1994-1998 Dodge Ram 2500 Base 1994-1998 Dodge Ram 350...
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  Fleece Performance

  Fleece Performance 07.5-18 Dodge/RAM 2500/3500 Cummins Replacement Coolant Bypass Hose

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  £110.55

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  £110.55

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  Replacement Coolant Bypass Hose for our 2007.5-2018 Ram 6.7L Cummins coolant bypass kits. This hose is covered with a high temperature protective sleeve. Application Notes: Direct replacement hose ...
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  Fleece Performance

  Fleece Performance 98.5-02 VP Coolant Bypass Kit w/ Stainless Steel Braided Line

  Regular price

  £465.60

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  £465.60

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  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...
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  Fleece Performance

  Fleece Performance 98.5-02 Dodge 5.9L Cummins VP Coolant Bypass Kit

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  £465.60

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  £465.60

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  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...
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  Fleece Performance

  Fleece Performance 03-18 Cummins Coolant Bypass Service Kit

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  £34.38

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  £34.38

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  Complete kit to service your Fleece Performance Coolant Bypass - Includes all O-rings, fasteners, and a new thermostat. Two thermostats included to service all production years, you will only use o...
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  Fleece Performance

  Fleece Performance 03-07 Dodge 5.9L / 04.5-12 6.7L Cummins Coolant Bypass Kit (03-07 Manual Trans)

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  £465.60

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  £465.60

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  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...
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  Fleece Performance

  Fleece Performance 2019+ Ram 2500/3500 Cummins 6.7L Coolant Bypass Kit

  Regular price

  £466.82

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  £466.82

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  All new Fleece Performance coolant bypass for the 2019+ RAM with 6.7L Cummins! Our patent pending design seamlessly integrates with your truck for an OE fit-and-finish. Increased Coolant Flow, Decr...
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  Fleece Performance

  Fleece Performance 13-18 RAM 2500/3500 6.7L Cummins Coolant Bypass Kit

  Regular price

  £466.82

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  £466.82

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  The Fleece Performance coolant bypass for the 2013-2018 RAM with 6.7L Cummins seamlessly integrates with your truck for an OE fit-and-finish. Features Increased Coolant Flow, Decreased Coolant Temp...
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  Fleece Performance

  Fleece Performance 94-98 12V Coolant Bypass Kit w/ Stainless Steel Braided Line

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  £465.60

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  £465.60

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  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...
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  Fleece Performance

  Fleece Performance 94-98 Dodge 5.9L Cummins 12V Coolant Bypass Kit

  Regular price

  £465.60

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  £465.60

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  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...
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  Fleece Performance

  Fleece Performance 07.5-12 Dodge/RAM 2500/3500 6.7L Cummins Coolant Bypass Kit

  Regular price

  £491.39

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  £491.39

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  The Fleece Performance coolant bypass for the 2007.5-2012 RAM with 6.7L Cummins seamlessly integrates with your truck for an OE fit-and-finish. Features Increased Coolant Flow, Decreased Coolant Te...
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  Fleece Performance

  Fleece Performance 06-07 Auto Trans Cummins Coolant Bypass Kit w/ Stainless Steel Braided Line

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  £465.60

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  £465.60

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  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...