The transmission in your MOPAR is the heart of its drivetrain. Whether you're hauling groceries or hitting the trail, it's vital to keep it performing at its best, and keeping the transmission fluid cool is crucial to that goal.
In an attempt to balance driveability and the health of your transmission, a thermostatic bypass valve was fitted to the lines that feed the transmission cooler. This valve ensures fluid doesn't flow through the cooler before the transmission reaches operating temperature, preventing overcooling in cold environments. However, when the thermostat in this valve fails, it's almost a guarantee your transmission will 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 Mishimoto has developed a performance thermostatic bypass valve for the 5 Speed automatic transmission. Our performance thermostatic bypass valve features a fully-serviceable and removable thermostat. For those who live 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 requirements using any of the available thermostats sold seperately.
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. Like all of our Jeep products, our performance thermostatic bypass valve is backed by our Mishimoto Lifetime Warranty.
(1) CNC-Machined Billet Aluminum Thermal Bypass Valve
(1) Removable Thermostat
(1) Removable Thermostat Bypass w/ Installation Hardware
(1) Assembly Notecard
Mishimoto Lifetime Warranty
*This performance thermostatic bypass valve only fits vehicles with 5-speed automatic transmissions **Mishimoto does not recommend customers in cold climates install the thermostat bypass to avoid overcooling of the transmission fluid
Fits these vehicles:
2012-2018 Jeep Wrangler JK w/ 5-Speed Automatic Transmission
2007-2013 Jeep Grand Cherokee w/ 5-Speed Automatic Transmission
2006-2013 Dodge Charger w/ 5-Speed Automatic Transmission
2009-2014 Dodge Challenger w/ 5-Speed Automatic Transmission
2005-2013 Chrysler 300 w/ 5-Speed Automatic Transmission
2012-2013 RAM 2500 5.7L V8 w/ 5-Speed Automatic Transmission
2013 RAM 3500 5.7L V8 w/ 5-Speed Automatic Transmission
2012-2018 RAM 1500 4.7L/5.7L V8 w/ 5-Speed Automatic Transmission
2018-2019 RAM 1500 Classic 5.7L V8 w/ 5-Speed Automatic Transmission