Mishimoto Mopar Pentastar / Hemi Thermal Bypass Valve Upgrade

Mishimoto Mopar Pentastar / Hemi Thermal Bypass Valve Upgrade

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$90.95
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The transmission in your Jeep Wrangler 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 drivability 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 through the cooler before the transmission reaches operating temperature, preventing overcooling in cold environments. However, when the thermostat in this valve fails, it's almost a guarantee your transmission will overheat. Moreover, those who live in hot climates will likely never have to worry about overcooling, rendering the valve a useless flow restriction. That's why Mishimoto has developed a full-flow thermostatic bypass valve for the 2012-2018 Jeep Wrangler. The Mishimoto thermal bypass valve kit includes an all-aluminum CNC-machined housing that replaces the stock unit. This full-flow valve allows fluid to pump through the cooler as soon as the vehicle is started, eliminating the potential failure point of the stock bypass and providing cooling benefits. The full-flow design is beneficial to vehicles operating in hot climates, extreme driving conditions, or towing heavy loads. As with all Mishimoto products, this Full-Flow Transmission Thermal Bypass Valve Kit includes our signature Lifetime Warranty.

Automatic transmission oil cooler designed to regulate fluid temperature and prevent overheating. Enhances transmission longevity, maintains performance, and features durable construction with a precise fit.

  • Direct-fit for 2012-2018 Jeep Wrangler JK
  • Eliminates failure-prone bypass valve
  • Installs in less than 1 hour
Mishimoto Mopar Pentastar / Hemi Thermal Bypass Valve Upgrade

$90.95

  • ACHIEVING

    4.8

    average rating

  • With

    95%

    positive reviews

  • LESS THAN

    3%

    return rate

Does it come with a warranty?

Yes, most products we sell are backed by the manufacture's warranty. Warranty coverage varies by brand, so check the product listing or contact us if you have any questions before purchasing.

What happens if I don't like it?

If you're not completely satisfied, we're here to help. Eligible unused items may be returned within 30 days of delivery, subject to our return policy and applicable restocking fees.

How fast is shipping?

We process most orders within 1-2 business days. Shipping times vary by product availability and location, but most customers receive their orders within 3-7 business days after they ship.

What's the returns policy?

Returns must be requested within 30 days of purchase, Items must be new, unused, and in their original packaging. Approved returns are subject to a 30% restocking fee. Custom order, electrical, and special order items may not be eligible for return.

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