Mishimoto 12-18 Jeep Wrangler JK Transmission Thermal Bypass Valve Kit

Mishimoto 12-18 Jeep Wrangler JK Transmission Thermal Bypass Valve Kit

Marsoni

M251S

$148.95

Get it in 3 business days with 1 day shipping. Friday, May 29

Mishimoto 12-18 Jeep Wrangler JK Transmission Thermal Bypass Valve KitThe transmission in your 2012 2018 Jeep Wrangler JK 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, Jeep fitted a thermostatic bypass valve to the lines that feed the transmission cooler. This valve ensures fluid doesn't flow

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I’m really impressed with this shirt. The material is incredibly comfortable and has just the right amount of stretch, so it doesn't feel restrictive at all. It looks sharp and professional, making it perfect for both work and heading out after. It fits true to size and holds its shape well throughout the day. If you’re looking for something that looks great but feels as relaxed as a casual tee, this is definitely a solid choice. I'll likely be picking up a few more colors.

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Reviewed in the United States on April 22, 2026