Mishimoto Thermal Bypass Valve Kit

2005–2020 Chrysler, Dodge, Jeep, Ram Various Models & Engines

Part #: MMTC-JK-TBV

Overview

The Mishimoto Thermal Bypass Valve Kit is a precision-engineered upgrade designed to optimize transmission fluid temperature management for a wide range of Chrysler, Dodge, Jeep, and Ram vehicles from 2005 through 2020. By replacing the factory thermostatic bypass valve, this kit ensures your transmission fluid reaches and maintains the ideal operating temperature, which is critical for maximizing drivetrain longevity and reliability.

Whether you frequently tow heavy loads, navigate stop-and-go city traffic, or tackle off-road trails, maintaining proper transmission fluid temperature prevents overheating and premature wear. This valve kit addresses common factory valve issues such as thermostat failure and flow restriction, offering a fully serviceable and customizable solution for enthusiasts and daily drivers alike.

Key Features

Engineered for superior transmission cooling performance, the Mishimoto Thermal Bypass Valve Kit combines innovative design with durable materials to enhance fluid flow and temperature regulation. Key features include:

• Direct-fit replacement for factory bypass valves on select Chrysler, Dodge, Jeep, and Ram models from 2005 to 2020
• 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, improving cooler efficiency even with the thermostat installed
• Thermostat opens at 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, enabling 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, helping prevent transmission overheating and promoting more efficient cooling. The removable thermostat element offers flexibility to tailor valve operation to specific climate and driving conditions—a serviceable feature not typically available in factory bypass valves.

Installation & Fitment

This valve kit is a direct-fit replacement for the factory bypass valve on a broad range of Chrysler, Dodge, Jeep, and Ram vehicles, including but not limited to:

• Chrysler 300 (2005–2014) including 3.5L V6, 2.7L, 3.6L V6, 5.7L Hemi, and 6.1L SRT8 engines
• Dodge Charger (2006–2019) with 2.7L, 3.5L V6, 3.6L V6, 5.7L Hemi, 6.1L SRT8, and 6.4L 392 engines
• Dodge Magnum (2005–2008) including 2.7L, 3.5L V6, 5.7L Hemi, and 6.1L SRT8
• Dodge Durango (2011–2013)
• Jeep Grand Cherokee (2007–2013) with 3.0L V6, 3.6L V6, 3.7L V6, 4.7L V8, 5.7L Hemi, 6.1L SRT8, and 6.4L SRT8 engines
• Jeep Wrangler JK (2012–2018) 3.6L V6
• Jeep Commander (2009–2010)
• Ram 1500 (2012–2020) with 4.7L V8 and 5.7L Hemi engines
• Ram 2500 (2012–2013) 5.7L Hemi

Installation is straightforward and can be completed in under an hour using basic hand tools. No vehicle modifications are required. The kit includes all necessary hardware and detailed 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 seeking improved transmission cooling efficiency and reliability. It is especially beneficial for those living in hot climates, frequently towing heavy loads, or engaging in off-road driving. Additionally, it serves as an excellent upgrade for anyone experiencing transmission overheating due to a failing stock bypass valve or those wanting a more serviceable and customizable solution 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.