Mishimoto Mopar Pentastar / Hemi Thermal Bypass Valve Upgrade

This kit from Mishimoto gives you a full-flow thermal bypass valve upgrade for your Mopar Pentastar or Hemi transmission. You get an all-aluminum, CNC-machined housing that replaces the stock unit. This setup is designed to help keep your transmission fluid at an optimal temperature, which is really important whether you're just driving around town, hauling a load, or out on the trail.

The factory bypass valve is there to prevent overcooling in cold weather, but it's a common point of failure that can lead to transmission overheating. If you live in a warmer climate or frequently tow, that stock valve can also just be an unnecessary restriction. This Mishimoto upgrade allows transmission fluid to flow through the cooler as soon as you start your vehicle, eliminating that potential failure point and providing better cooling when you need it most. It's a solid option for vehicles like the Jeep Wrangler JK, Dodge Charger, or Ram 1500 that see a lot of use.

Installation is straightforward, typically taking less than an hour, and it directly replaces the factory valve. This upgrade comes with Mishimoto's signature Lifetime Warranty.