Cooler Bypass Delete Chevy/GM Allison 2017-2019

At Monster Transmission, we know the small stuff can make a big difference. Debris in your stock cooler bypass valve can cause the internal valve to stick, forcing it into recirculation mode. This traps heat, raising transmission temperatures and putting your transmission at risk of overheating or early failure. The BD Cooler Bypass Delete is your ultimate fix—it keeps your transmission running cooler 24/7, eliminating this common weak point and keeping your ride performing like a true monster!