Collection: Coolant Bypass Kits

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

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

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

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

Fleece Performance 03-18 Cummins Coolant Bypass Service Kit

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

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

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

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

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

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

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

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

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

Fleece Performance 03-05 Auto Trans Cummins Coolant Bypass Kit w/ Stainless Steel Braided Line

Fleece Performance 03-07 Dodge 5.9L Cummins Coolant Bypass Kit (03-05 Auto Trans)

Fleece Performance 94-18 Dodge 2500/3500 Cummins Replacement O-Ring Kit For Coolant Bypass Kit

Fleece Performance 13-16 Dodge 6.7L Cummins 2nd Gen Swap Kit A/C Line Reroute Kit

Fleece Performance Universal Pre-Formed 5/8in ID Hose w/ 90 Deg. Ends/1in ID T-Fitting

Fleece Performance 13-16 Dodge 6.7L Cummins Coolant Tank Assembly

Wehrli Duramax Coolant Plug