Mishimoto Transmission Thermal Bypass Valve Kit: Chrysler 300 / Dodge Challenger / Charger 2012-2021

Mishimoto Transmission Thermal Bypass Valve Kit

2012–2021 Chrysler 300 / Dodge Challenger / Dodge Charger 3.6L

MMTC-GMP-TBV

Overview:

The Mishimoto Transmission Thermal Bypass Valve Kit is a precision-engineered upgrade designed to address a common failure point in the transmission cooling systems of 2012 to 2021 Mopar vehicles, including the Chrysler 300, Dodge Challenger, and Dodge Charger. The factory thermal bypass valve, which regulates fluid flow to the external transmission cooler based on temperature, is prone to sticking closed, leading to transmission overheating and potential damage. Mishimoto’s solution replaces this vulnerable component with a durable, high-performance valve that ensures reliable temperature regulation and improved transmission longevity.

Ideal for enthusiasts and daily drivers alike, this kit offers enhanced cooling control, helping maintain optimal transmission temperatures under a variety of driving conditions. Whether you’re navigating hot climates, towing, or pushing your vehicle hard on the street or track, this valve kit provides peace of mind and improved thermal management.

Key Features:

Engineered to outperform the factory unit, the Mishimoto Thermal Bypass Valve Kit includes several advanced features designed to enhance reliability and cooling efficiency:

• Constructed from CNC-machined billet aluminum for superior strength and durability
• Heat sink design improves heat dissipation for better thermal management
• Includes a fully serviceable thermostat calibrated to open at the stock temperature of 160°F (71°C)
• Thermostat can be swapped with other Mishimoto thermostats to customize opening temperatures
• Comes with a bypass valve option for constant fluid flow, ideal for extreme driving or hot climates
• Improved fluid flow compared to the factory bypass valve, reducing transmission heat buildup
• Direct-fit design connects seamlessly to all factory cooler piping without modifications
• Durable black anodized finish resists corrosion and adds a unique visual upgrade under the hood
• Backed by the Mishimoto Lifetime Warranty for long-term reliability

Construction & Design:

The valve body is precision CNC-machined from billet aluminum, ensuring exceptional durability and resistance to wear. Its integrated heat sink design actively dissipates heat away from the transmission fluid, enhancing cooling efficiency beyond the capabilities of the stock valve. The black anodized finish not only protects against corrosion but also provides a sleek, performance-oriented appearance. The included thermostat is fully serviceable, allowing for easy maintenance or customization to suit specific cooling requirements.

Installation & Fitment:

Installation is straightforward and can typically be completed within one hour using basic hand tools. The kit is designed as a direct replacement for the factory thermal bypass valve and connects directly to all OEM transmission cooler lines, requiring no additional modifications or adapters. This ensures a hassle-free upgrade experience for both professional technicians and knowledgeable enthusiasts.

This kit fits a wide range of Chrysler 300, Dodge Challenger, and Dodge Charger models equipped with the 3.6L engine from 2012 through 2021, covering base, S, R/T, Scat Pack, SRT, and other trims as specified.

What's Included:

• CNC-machined billet aluminum thermal bypass valve body with heat sink design
• Fully serviceable thermostat calibrated to open at 160°F (71°C)
• Thermostat bypass valve for constant fluid flow option
• All necessary seals and hardware for installation
• Detailed installation instructions

Ideal For:

This transmission thermal bypass valve kit is perfect for Mopar owners seeking to improve transmission cooling reliability and performance. It is especially beneficial for:

• Drivers in hot climates or those who frequently tow or haul heavy loads
• Performance enthusiasts who push their vehicles hard on the street or track
• Owners looking to replace the factory valve prone to failure and overheating issues
• Anyone wanting a durable, long-lasting upgrade backed by a lifetime warranty