07-18 Cummins 6.7 Fleece Coolant Bypass Kit Years:13-18 We recommend talking to who

We recommend talking to who does your tuning first before purchasing

Improved Casting In "Problem Areas"

The 10th character is the year of the truck

Includes light sensitivity meter to dim screen as ambient light decreases

Heavy-Duty Front Sway Bar for 01-10 Chevrolet and GMC 1500HD/2500/2500HD/3500/3500HD 2WD/4WD trucks

07-18 Cummins 6.7 Fleece Coolant Bypass Kit Years:13-18 We recommend talking to whoIncreased Coolant Flow, Decreased Coolant Temperatures See Video at bottom for a youtube install video The rear cylinders on the 5. 9 6. 7L Cummins suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. This can cause excessive pressure to build in the cooling system, especially the rear of the block and blow out freeze plugs externally, or the smaller diameter plugs under the valve cover, leading to a failure.