Mishimoto performance thermostatic bypass valve kit for 2012–2018 Jeep Wrangler JK transmissions. The CNC-machined billet aluminum valve is a direct-fit replacement that improves flow to the transmission cooler and features a removable, serviceable thermostat. The included thermostat opens at the stock 160°F and can be swapped for a bypass to allow full-time flow in hot climates. Anodized for durability and backed by Mishimoto's lifetime warranty.
Mishimoto 12-18 Jeep Wrangler JK Transmission Thermal Bypass Valve Kit