The Mishimoto Thermal Bypass Valve Kit helps control ATF temperatures in 2012–2018 Jeep Wrangler JKs by allowing fluid to flow to the cooler sooner.
This kit replaces the factory thermal bypass valve, which can restrict cooling flow until high temperatures are reached. Mishimoto’s design eliminates the stock thermostat, enabling consistent and efficient fluid cooling under all conditions—ideal for off-roading, towing, or high-demand use.
Key Features:
Direct-Fit Replacement: Designed specifically for Jeep Wrangler JK 3.6L models from 2012 to 2018.
Bypasses Factory Thermostat: Allows transmission fluid to circulate to the cooler immediately for better thermal regulation.
CNC-Machined Billet Aluminum: Durable construction with an anodized black finish resists corrosion and enhances engine bay appearance.
Improves Transmission Cooling: Helps maintain lower transmission fluid temperatures, reducing wear and heat stress.
No Tune Required: Installs without the need for calibration or tuning adjustments.
Includes All Necessary Hardware: Kit comes complete with O-rings and fittings for a straightforward install.
Mishimoto Lifetime Warranty: Covered by Mishimoto’s trusted limited lifetime warranty for added peace of mind.
Perfect for Jeep owners looking to manage heat build-up during heavy-duty operation, this thermal bypass valve is engineered to improve longevity and transmission reliability in demanding environments.
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