Coolant Bypass Kits

Coolant Bypass Kits

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    Fleece Performance 98.5-02 VP Coolant Bypass Kit w/ Stainless Steel Braided Line - FPE-CLNTBYPS-CUMMINS-VP-SS

    Fleece Performance

    $379.00
    Is this compatible with my vehicle?Confirm fitment with your specific vehicle before purchasing; professional installation is recommended for optimal integration.How does the bypass kit improve my engine's cooling system?This coolant bypass kit adds a...
    $379.00
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    $379.00
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    Fleece Performance 98.5-02 Dodge 5.9L Cummins VP Coolant Bypass Kit - FPE-CLNTBYPS-CUMMINS-VP

    Fleece Performance

    $379.00
    Does this kit bypass the radiator?This Fleece Performance Coolant Bypass Kit does not bypass the radiator; it adds a secondary thermostat to regulate engine temperature.Is this kit difficult to install?Professional installation is recommended for this...
    $379.00
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    $379.00
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  • User 1

    Fleece Performance 03-18 Cummins Coolant Bypass Service Kit - FPE-CLNTBYPS-CUMMINS-SER-KIT

    Fleece Performance

    $29.99
    What is a coolant bypass kit?A coolant bypass kit optimizes engine temperature regulation by strategically rerouting coolant flow, ensuring consistent performance across all production years.Is professional installation recommended for this...
    $29.99
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    $29.99
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  • User 1

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

    Fleece Performance

    $379.00
    How does this coolant bypass kit work?This Fleece Performance Coolant Bypass Kit adds a secondary thermostat, actively managing coolant flow based on temperature for superior engine control.Is professional installation recommended for this coolant bypass...
    $379.00
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    Fleece Performance 03-07 Dodge 5.9L / 04.5-12 6.7L Cummins Coolant Bypass Kit (03-07 Manual Trans) - FPE-CLNTBYPS-CUMMINS-MAN

    Fleece Performance

    $379.00
    Does this coolant bypass kit fit my 2005 Dodge Ram 2500?Confirm fitment with your vehicle using our detailed compatibility guide; this kit offers precise installation for compatible models.How does this coolant bypass kit improve engine...
    $379.00
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    $379.00
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  • User 1

    Fleece Performance 2019+ Ram 2500/3500 Cummins 6.7L Coolant Bypass Kit - FPE-CLNTBYPS-CUMMINS-19

    Fleece Performance

    $379.99
    Is the Fleece Performance Coolant Bypass Kit compatible with my 2019 Ram 2500?Confirm your vehicle's specific fitment details to ensure optimal integration of this coolant bypass kit.How does the Fleece Performance Coolant Bypass Kit improve engine...
    $379.99
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    $379.99
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  • User 1

    Fleece Performance 13-18 RAM 2500/3500 6.7L Cummins Coolant Bypass Kit - FPE-CLNTBYPS-CUMMINS-1318

    Fleece Performance

    $379.99
    Will this coolant bypass kit fit my 2013 Ram 2500?Yes, the FPE Coolant Bypass Kit is specifically designed for a perfect plug-and-play fit on 2013-2018 Ram 2500/3500 models.What is the primary benefit of installing a coolant bypass kit?Installing a...
    $379.99
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    $379.99
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  • User 1

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

    Fleece Performance

    $379.00
    Is the FPE Coolant Bypass Kit designed for 1994-1998 Dodge Ram 2500/3500 models?Yes, the Fleece Performance Coolant Bypass Kit is engineered specifically for a direct bolt-on fit on 1994-1998 Dodge Ram 2500 and Ram 3500 trucks.How does the FPE Coolant...
    $379.00
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    $379.00
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    Fleece Performance 94-98 Dodge 5.9L Cummins 12V Coolant Bypass Kit - FPE-CLNTBYPS-CUMMINS-12V

    Fleece Performance

    $379.00
    Will this kit fit my 1998 Dodge Ram 2500?Confirm exact fitment with your vehicle's specifications before purchase to ensure compatibility with your 1998 Dodge Ram 2500.How much horsepower does this kit add?This coolant bypass kit does not directly add...
    $379.00
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    $379.00
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  • User 1

    Fleece Performance 07.5-12 Dodge/RAM 2500/3500 6.7L Cummins Coolant Bypass Kit - FPE-CLNTBYPS-CUMMINS-0712

    Fleece Performance

    $399.99
    Does this coolant bypass kit come with everything needed for installation?Fleece Performance coolant bypass kits include all necessary components for a complete, leak-free plug-and-play installation.How does the bypass kit improve engine...
    $399.99
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    $399.99
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  • User 1

    Fleece Performance 06-07 Auto Trans Cummins Coolant Bypass Kit w/ Stainless Steel Braided Line - FPE-CLNTBYPS-CUMMINS-0607-SS

    Fleece Performance

    $379.00
    What year Dodge Ram trucks are compatible with the FPE Coolant Bypass Kit?Fleece Performance Coolant Bypass Kits are specifically designed for 2006 and 2007 Dodge Ram 2500/3500 models.Is the FPE Coolant Bypass Kit a difficult installation?Professional...
    $379.00
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    $379.00
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  • User 1

    Fleece Performance 04.5-07 Dodge 5.9L Cummins Coolant Bypass Kit (06-07 Auto Trans) - FPE-CLNTBYPS-CUMMINS-0607

    Fleece Performance

    $379.00
    Will this coolant bypass kit fit my truck?The Fleece Performance Coolant Bypass Kit is designed as a plug-and-play solution specifically for 2006-2007 Dodge Ram 2500 and 3500 models.How does the bypass kit improve cooling?Adding a secondary thermostat,...
    $379.00
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    $379.00
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Coolant Bypass Kits

Optimize your engine's performance with our premium selection of coolant bypass kits. Designed for a range of Cummins models, these kits enhance cooling efficiency while providing essential durability and reliability. Whether you're performing an engine swap or upgrading your existing system, our coolant bypass kits ensure optimal temperature management for higher performance.

Why Choose Our Coolant Bypass Kits?

  • High-quality materials and construction for long-lasting performance.
  • Simplifies coolant routing for better engine cooling.
  • Pre-formed hoses and fittings for easier installation in tight spaces.
  • Compatible with various Dodge and RAM Cummins engines from 12V to 6.7L.

We offer a diverse range of products, including:

  • Fleece Performance Universal Pre-Formed 5/8in ID Hose w/ 90 Deg. Ends
  • Fleece Performance 13-16 Dodge 6.7L Cummins 2nd Gen Swap A/C Line Reroute Kit
  • Fleece Performance 03-07 Dodge 5.9L Coolant Bypass Kits with options like stainless steel braided lines
  • Fleece Performance Replacement O-Ring Kits specifically designed for coolant bypass applications

Each coolant bypass kit is engineered to meet the specific needs of your Cummins engine, offering precision fittings and high-quality construction. Discover how these kits can enhance your vehicle's cooling system and ensure optimal performance on and off the road.