The RAM transmission serves as the backbone.
It transmits large amounts of torque from your 6.7L Cummins powerplant, generating heat.
If that heat isn’t dissipated, it can destroy your transmission.
The transmission cooler effectively keeps trans fluid temperatures in check, but only if the fluid can reach it.
Both the 68-RFE and Aisin AS69RC stock cooling systems utilize an in-line thermal bypass valve that controls fluid flow to the transmission cooler.
This valve prevents transmission fluid from flowing to the cooler until it reaches operating temperature.
However, the thermostat inside this valve is prone to failure, and when that occurs, the fluid never flows to the cooler, leading to transmission overheating.
That’s why an improved thermal bypass valve kit has been developed by Mishimoto for your 2019+ Dodge Ram 6.7L Cummins.
The CNC-machined aluminum thermal bypass valve not only looks better than the stock unit but also performs better.
The Mishimoto thermal bypass valve features a replaceable thermostat that is more durable than the stock thermostat and opens about 10 F earlier.
This allows fluid to flow to the cooler sooner without over-cooling.
For owners in hot climates, the Mishimoto valve includes a bypass that allows full flow to the transmission cooler regardless of temperature.
The bypass can be easily swapped out with only a wrench for summer or winter driving.
The Mishimoto thermal bypass valve flows better in both configurations than the stock valve for more effective cooling.
Cooling fins machined into the valve body add even more heat dissipation.
This Thermal Bypass Valve Kit for 2019+ Dodge Ram 6.7L Cummins is built to last a lifetime with a durable black anodized finish and includes a Mishimoto Lifetime Guarantee.
