The transmission is the backbone of your Grand Cherokee. It's responsible for transmitting large quantities of torque from your V8 or 3.0L EcoDiesel powerplant. That much torque generates a lot of heat, and if that heat isn't dissipated, it can destroy your transmission. The transmission cooler does a good job of keeping trans fluid temperatures in check, but only if the fluid can reach it. The stock cooling system of the 8HP transmission utilizes an in-line thermal bypass valve that controls fluid flow to the transmission cooler. The purpose of this valve is to prevent transmission fluid from flowing to the cooler until it reaches operating temperature. The thermostat inside this valve is prone to failure, however, and when that happens, the fluid never flows to the cooler, and the transmission can overheat. That's why Mishimoto has developed a full-flow thermal bypass valve upgrade for your 2016-2020 Jeep Grand Cherokee. The Mishimoto thermal bypass valve kit includes an all-aluminum CNC-machined housing that replaces the stock unit. This full-flow valve allows fluid to pump through the cooler as soon as the vehicle is started, eliminating the potential failure point of the stock bypass and providing cooling benefits. The full-flow design is beneficial to vehicles operating in hot climates, extreme driving conditions, or towing heavy loads. As with Mishimoto products, this Full-Flow Transmission Thermal Bypass Valve Kit includes our signature Lifetime Warranty.

This Part Fits:

Year	Make	Model	Submodel
2016	Jeep	Grand Cherokee	75th Anniversary
2021	Jeep	Grand Cherokee	80th Anniversary
2018-2020	Jeep	Grand Cherokee	Altitude
2018-2021	Jeep	Grand Cherokee	High Altitude
2016-2020	Jeep	Grand Cherokee	Laredo
2021	Jeep	Grand Cherokee	Laredo E
2021	Jeep	Grand Cherokee	Laredo X
2016-2021	Jeep	Grand Cherokee	Limited
2019-2020	Jeep	Grand Cherokee	Limited X
2016-2021	Jeep	Grand Cherokee	Overland
2016-2021	Jeep	Grand Cherokee	SRT
2016-2021	Jeep	Grand Cherokee	Summit
2018-2021	Jeep	Grand Cherokee	Trackhawk
2017-2021	Jeep	Grand Cherokee	Trailhawk
2019-2020	Jeep	Grand Cherokee	Upland
2021	Jeep	Grand Cherokee L	Altitude
2021	Jeep	Grand Cherokee L	Laredo
2021	Jeep	Grand Cherokee L	Limited
2021	Jeep	Grand Cherokee L	Overland
2021	Jeep	Grand Cherokee L	Summit
2021	Jeep	Grand Cherokee L	Summit Reserve