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FLEECE PERFOR..
$403.59
Fleece Performance 13-16 Dodge 6.7L Cummins 2nd Gen Swap K..
2013-2016 6.7L Cummins A/C Line Reroute Kit - If you are looking to do an aftermarket turbo set up like a 2nd Gen Swap Kit, or Compund Kit then this kit is a must! The factory A/C lines are in the way, this kit allows for all the room you..
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SOLD OUT
FLEECE PERFOR..
$363.13
Fleece Performance 03-07 Manual Transmission Cummins Coola..
Fleece Performance 03-07 Manual Transmission Cummins Coolant Bypass Kit w/ SS Braided LineInstallation Instructions
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FLEECE PERFOR..
$384.36
Fleece Performance 2019+ Ram 2500/3500 Cummins 6.7L Coolan..
Fleece Performance 2019+ Ram 2500/3500 Cummins 6.7L Coolant Bypass Kit
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FLEECE PERFOR..
$384.36
Fleece Performance 13-18 RAM 2500/3500 6.7L Cummins Coolan..
Fleece Performance 13-18 RAM 2500/3500 6.7L Cummins Coolant Bypass Kit
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FLEECE PERFOR..
$131.48
Fleece Performance 98.5-07 Dodge 2500/3500 Cummins Replace..
Fleece Performance 98.5-07 Dodge 2500/3500 Cummins Replacement Thermostat Housing w/Aux Port
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FLEECE PERFOR..
$363.13
Fleece Performance 98.5-02 VP Coolant Bypass Kit w/ Stainl..
Fleece Performance 98.5-02 VP Coolant Bypass Kit w/ Stainless Steel Braided LineInstallation Instructions
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FLEECE PERFOR..
$363.13
Fleece Performance 98.5-02 Dodge 5.9L Cummins VP Coolant B..
Another product from Fleece Performance built out of necessity is the 1998.5-2002 Cummins Coolant Bypass kit. The Cummins engine cooling system was designed to adequately cool a 300-350hp engine. When the horsepower is increased there is an increased demand on the cooling system. The rear cylinders suffer from a lack..
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$28.31
Fleece Performance 03-18 Cummins Coolant Bypass Service Kit
Fleece Performance 03-18 Cummins Coolant Bypass Service Kit
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FLEECE PERFOR..
$363.13
Fleece Performance 03-07 Dodge 5.9L / 04.5-12 6.7L Cummins..
Another product from Fleece Performance built out of necessity is the 2003-2013 Cummins Coolant Bypass kit. The Cummins engine cooling system was designed to adequately cool a 300-350hp engine. When the horsepower is increased there is an increased demand on the cooling system. The rear cylinders suffer from a lack..
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FLEECE PERFOR..
$363.13
Fleece Performance 94-98 12V Coolant Bypass Kit w/ Stainle..
Fleece Performance 94-98 12V Coolant Bypass Kit w/ Stainless Steel Braided LineInstallation Instructions
REGULAR STOCK
FLEECE PERFOR..
$363.13
Fleece Performance 94-98 Dodge 5.9L Cummins 12V Coolant By..
Another product from Fleece Performance built out of necessity is the 1998.5-2002 Cummins Coolant Bypass kit. The Cummins engine cooling system was designed to adequately cool a 300-350hp engine. When the horsepower is increased there is an increased demand on the cooling system. The rear cylinders suffer from a lack..
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SOLD OUT
FLEECE PERFOR..
$404.59
Fleece Performance 07.5-12 Dodge/RAM 2500/3500 6.7L Cummin..
Fleece Performance 07.5-12 Dodge/RAM 2500/3500 6.7L Cummins Coolant Bypass Kit
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FLEECE PERFOR..
$363.13
Fleece Performance 06-07 Auto Trans Cummins Coolant Bypass..
Fleece Performance 06-07 Auto Trans Cummins Coolant Bypass Kit w/ Stainless Steel Braided LineInstallation Instructions
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FLEECE PERFOR..
$363.13
Fleece Performance 04.5-07 Dodge 5.9L Cummins Coolant Bypa..
Another product from Fleece Performance built out of necessity is the 2003-2013 Cummins Coolant Bypass kit. The Cummins engine cooling system was designed to adequately cool a 300-350hp engine. When the horsepower is increased there is an increased demand on the cooling system. The rear cylinders suffer from a lack..
REGULAR STOCK
FLEECE PERFOR..
$363.13
Fleece Performance 03-05 Auto Trans Cummins Coolant Bypass..
Fleece Performance 03-05 Auto Trans Cummins Coolant Bypass Kit w/ Stainless Steel Braided LineInstallation Instructions
REGULAR STOCK
FLEECE PERFOR..
$363.13
Fleece Performance 03-07 Dodge 5.9L Cummins Coolant Bypass..
Another product from Fleece Performance built out of necessity is the 2003-2013 Cummins Coolant Bypass kit. The Cummins engine cooling system was designed to adequately cool a 300-350hp engine. When the horsepower is increased there is an increased demand on the cooling system. The rear cylinders suffer from a lack..
REGULAR STOCK
FLEECE PERFOR..
$9.56
Fleece Performance 94-18 Dodge 2500/3500 Cummins Replaceme..
Fleece Performance 94-18 Dodge 2500/3500 Cummins Replacement O-Ring Kit For Coolant Bypass Kit
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FLEECE PERFOR..
$32.61
Fleece Performance Universal Pre-Formed 5/8in ID Hose w/ 9..
Fleece Performance Universal Pre-Formed 5/8in ID Hose w/ 90 Deg. Ends/1in ID T-Fitting
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FLEECE PERFOR..
$393.47
Fleece Performance 13-16 Dodge 6.7L Cummins Coolant Tank A..
Fleece Performance 13-16 Dodge 6.7L Cummins Coolant Tank Assembly
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SALE
Coolant bypass kits are designed to improve coolant flow within an engine's cooling system. They typically achieve this by providing an alternative path for coolant circulation, particularly around the thermostat. This can be beneficial in certain situations, such as with performance modifications that generate additional heat, or for engines prone to uneven coolant distribution. When considering a coolant bypass kit, it's important to ensure compatibility with your specific vehicle and understand any potential impact on factory warranties.