The transmission in your Jeep Wrangler JK 2012-2018 is the heart of its drivetrain.
It's vital to keep it performing at its best, and keeping the transmission fluid cool is crucial to that goal, whether you're hauling groceries or hitting the trail.
Jeep fitted a thermostatic bypass valve to the lines that feed the transmission cooler in an attempt to balance driveability and the health of your transmission.
This valve prevents fluid from flowing through the cooler before the transmission reaches operating temperature, ensuring overcooling does not occur in cold environments.
However, when the thermostat in this valve fails, your transmission will almost certainly overheat.
Moreover, those who live in hot climates will likely never have to worry about overcooling, rendering the valve a useless flow restriction.
That's why a performance thermostatic bypass valve compatible with the Jeep Wrangler JK 2012-2018 has been developed by Mishimoto.
This performance thermostatic bypass valve features a fully-serviceable and removable thermostat.
For those in hot climates, the thermostat can be replaced with the included bypass to allow full flow to the transmission cooler at all times.
Speaking of flow, the Mishimoto performance thermostatic bypass provides increased flow over the stock valve to ensure your transmission cooler operates at peak efficiency, even with the thermostat installed.
The included thermostat opens at the stock temperature of 160°F (71°C), but the valve can be customized to suit your needs with any available Mishimoto thermostat.
The Mishimoto performance thermostatic bypass valve is a direct-fit* and is made from durable aircraft-grade aluminum that's anodized to withstand even the harshest environments.
Our performance thermostatic bypass valve is backed by the Mishimoto Lifetime Warranty.
