Coolant Bypass Kits

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

Fleece Performance 2003-2016 Cummins Coolant Bypass Brackets (Set of Two)

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

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

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

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

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

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

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

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

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

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...

Fleece Performance 03-18 Cummins Coolant Bypass Service Kit

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

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...