Category Archives: Dodge Ram 6.7L Cummins Thermal Bypass Valve Kit

Bypassing the Norm – Thermal Bypass Valve R&D, Part 1: Design to Delivery

The transmission is the backbone of your 2013–2018 Dodge Ram 6.7L Cummins. It’s responsible for transmitting up to 930 lb-ft of torque from the engine to the wheels. That much power generates a lot of heat and if that heat isn’t dissipated, it can destroy your transmission. The transmission cooler does a decent job of keeping transmission fluid temperatures in check, but only if the fluid can reach it.

The stock cooling systems of both the 68-RFE and Aisin AS69RC utilize an in-line thermal bypass valve that controls the flow of fluid to the transmission cooler. The purpose of this valve is to … Continue Reading ››