The transmission in your 2012-2018 Jeep Wrangler JK is a critical component of your vehicle, acting as the core of its drivetrain capabilities. Whether you’re cruising through urban environments or tackling rugged trails, maintaining the optimal performance of your transmission is essential. A key factor in achieving that goal is to ensure the transmission fluid remains at the right temperature. Jeep originally designed a thermostatic bypass valve to regulate the flow of transmission fluid to the cooler, aiming to prevent overcooling in chilly climates by only allowing fluid circulation once optimal operating temperature is reached. However, over time, these stock valves may fail, leading to overheating issues, particularly for those operating in hotter climates where the risk of overcooling is minimal.

This is where Mishimoto’s performance thermostatic bypass valve comes into play. Specifically crafted for the 2012-2018 Jeep Wrangler JK, our innovative solution promises enhanced transmission efficiency and reliability. It features a fully serviceable and removable thermostat, providing the versatility to adapt to diverse climate needs. For those navigating through hotter environments, the thermostat can be effortlessly swapped out with the provided bypass, ensuring full fluid circulation through the cooler at all times. Thanks to its increased flow capacity, this performance-enhanced valve surpasses the stock version, maintaining peak transmission cooling efficiency.

Features

• Fully serviceable thermostat for quick warm-ups in cold climates
• Thermostat bypass option for constant cooling in hot climates
• Increased flow capacity over the stock valve
• Customizable with any available Mishimoto thermostat for tailored temperature control
• Constructed from durable, anodized aircraft-grade aluminum
• Direct-fit design for simple installation
• Backed by Mishimoto Lifetime Warranty for peace of mind

By choosing Mishimoto’s performance thermostatic bypass valve, you’re investing in a product that seamlessly blends durability, innovation, and adaptability. Designed with precision, our bypass valve withstands even the harshest environmental conditions, making it a perfect fit for the adventurous spirit of Jeep owners. Like all Mishimoto products, it ensures not only the health of your vehicle but also your peace of mind, with the backing of our industry-leading Lifetime Warranty.

If you have any questions or need further assistance, our friendly customer support team is eager to help! Feel free to reach out to us at 512-982-9393 (Texas) or 562-981-6800 (California). We look forward to assisting you in finding the perfect solution for your vehicle.

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