Mishimoto 16-20 Jeep Grand Cherokee Thermal Bypass Valve Kit FF

Your Dodge Durango's transmission handles a lot of power, and that power generates heat. Keeping transmission fluid cool is key to preventing damage, especially if you're towing or driving in hot weather. The stock transmission cooling system uses a thermal bypass valve to control fluid flow to the cooler, but the thermostat inside that valve can fail. When it fails, fluid stops flowing to the cooler, and your transmission can overheat.

This Mishimoto Full-Flow Thermal Bypass Valve Kit replaces that stock unit with a CNC-machined billet aluminum housing. Unlike the stock valve, this kit allows transmission fluid to flow to the cooler as soon as you start your vehicle. This constant flow helps dissipate heat more effectively, which is a big help for vehicles operating in demanding conditions like towing heavy loads or in hot climates. It's a well-built upgrade that eliminates a common failure point in the factory system.

Installation is straightforward, typically taking less than an hour. This kit comes with Mishimoto's signature Lifetime Warranty for peace of mind.