Mishimoto Thermal Bypass Valve Kit

2005–2020 Chrysler, Dodge, Jeep & Ram Models

Part #: MMTC-JK-TBV

Overview

The Mishimoto Thermal Bypass Valve Kit is a precision-engineered upgrade designed to optimize transmission fluid cooling for a wide range of Chrysler, Dodge, Jeep, and Ram vehicles from 2005 through 2020. This kit replaces the factory thermostatic bypass valve, ensuring your transmission fluid reaches and maintains the ideal operating temperature to maximize drivetrain longevity and reliability. Whether you’re towing heavy loads, navigating urban traffic, or exploring off-road trails, maintaining proper transmission fluid temperature is essential to prevent overheating and premature wear.

Built for both enthusiasts and daily drivers, this valve kit addresses common issues found in stock bypass valves such as thermostat failure and flow restriction. Its fully serviceable design allows for easy maintenance and customization, including options for a full bypass to provide constant fluid flow in hot climates. This upgrade delivers improved transmission cooling efficiency and durability, helping your vehicle perform at its best under demanding conditions.

Key Features

The Mishimoto Thermal Bypass Valve Kit offers superior transmission cooling performance through a combination of innovative design and high-quality materials. Key features include:

• Direct-fit replacement for factory bypass valves on select Chrysler, Dodge, Jeep, and Ram models
• Fully serviceable and removable thermostat element for easy maintenance and customization
• Includes a bypass insert to allow full fluid flow for hot climate or heavy-duty applications
• Increased fluid flow compared to stock valves, enhancing cooler efficiency even with the thermostat installed
• Thermostat opens at the factory temperature of 160°F (71°C), compatible with Mishimoto’s range of thermostats
• Durable aircraft-grade aluminum construction with anodized finish for corrosion resistance
• Backed by Mishimoto’s Lifetime Warranty for long-term peace of mind
• Simple installation requiring less than one hour with no vehicle modifications

Construction & Design

Crafted from high-quality aircraft-grade aluminum, the Mishimoto Thermal Bypass Valve is CNC-machined to ensure a precise fit and exceptional durability. Its anodized finish provides robust corrosion resistance, allowing it to withstand harsh operating environments and maintain reliable performance over time. The valve’s design improves fluid flow dynamics by reducing restrictions common in stock valves, which helps prevent overheating and promotes more efficient cooling.

The removable thermostat element offers flexibility to tailor the valve’s operation to specific climate and driving conditions. This serviceable feature is not available in most factory bypass valves, giving users the ability to optimize transmission fluid temperature management based on their unique needs.

Installation & Fitment

This valve kit is a direct-fit replacement for the factory bypass valve on a broad range of vehicles, including:

• Chrysler 300 (2005–2014)
• Dodge Challenger (2008–2014)
• Dodge Charger (2006–2019)
• Dodge Durango (2011–2013)
• Dodge Magnum (2005–2008)
• Jeep Commander (2009–2010)
• Jeep Grand Cherokee (2007–2013)
• Jeep Wrangler JK (2012–2018)
• Ram 1500 (2012–2020)
• Ram 2500 (2012–2013)

Installation is straightforward and can be completed in under an hour using basic hand tools. No vehicle modifications are required, and the kit includes all necessary hardware and instructions to replace the stock valve and customize thermostat operation if desired.

What's Included

• Mishimoto Transmission Thermal Bypass Valve
• Removable thermostat element (opens at 160°F / 71°C)
• Bypass insert for full fluid flow
• Installation hardware and instructions

Ideal For

This Thermal Bypass Valve Kit is ideal for drivers who want to improve transmission cooling efficiency and reliability, especially those living in hot climates or frequently towing or off-roading. It is also an excellent solution for anyone experiencing transmission overheating due to a failing stock bypass valve or seeking a more serviceable and customizable option to maintain optimal transmission fluid temperature and protect drivetrain components.

Mishimoto is a performance cooling brand offering aluminum radiators, intercoolers, oil coolers, hoses, and supporting hardware built to manage heat on hard-driven street and track vehicles. For boosted setups and towing/off-road rigs alike, Mishimoto upgrades are designed to increase cooling capacity and reliability where factory systems can become a limitation.