Mishimoto 2013+ Dodge Ram 6.7L Cummins Thermal Bypass Valve Kit

Your 2013-2018 Ram 2500 with the 6.7L Cummins engine puts down serious torque, and keeping that transmission cool is key to its longevity. The stock thermal bypass valve controls when fluid reaches the transmission cooler, but its thermostat can fail, preventing flow and leading to overheating. Mishimoto has developed an improved thermal bypass valve kit to help manage transmission temperatures more effectively.

This kit includes a CNC-machined aluminum thermal bypass valve that's built to last, featuring a durable black anodized finish. The included 160°F thermostat opens about 10°F earlier than the factory unit, allowing fluid to reach the cooler sooner for better heat dissipation without causing the transmission to run too cool. For those in warmer climates or who tow heavily, the kit also comes with a bypass that allows for constant full flow to the transmission cooler, regardless of fluid temperature. This bypass can be easily swapped out with just a wrench. Both configurations offer improved flow over the stock valve, and the machined cooling fins on the valve body help dissipate additional heat.

This kit is designed as a direct fit for your 2013-2018 Ram 2500 6.7L Cummins, making installation straightforward. It's a well-built upgrade that helps ensure your transmission stays at optimal operating temperatures, especially under demanding conditions.