Why does this bypass valve eliminate the thermostat?

The stock thermal bypass valve uses a thermostat to delay fluid flow to the cooler until the transmission reaches operating temperature. This Mishimoto valve removes that thermostat to ensure fluid is always directed to the cooler, which is beneficial for preventing overheating in demanding conditions.

Will this valve affect transmission warm-up time in cold weather?

While this valve ensures full flow to the cooler, the transmission fluid will still warm up through normal operation. The design focuses on preventing overheating by maintaining constant flow to the cooler, which is particularly advantageous in warmer climates or during heavy use.

What is included with this thermal bypass valve kit?

This kit includes the Mishimoto full-flow thermal bypass valve, constructed from CNC-machined aluminum. It is designed as a direct replacement for the stock valve.

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Specifications

Brand: Mishimoto
Part #: MMTC-RAM2-TBVFF
UPC: 840197722428

Mishimoto 2019+ RAM 6.7L Cummins Thermal Bypass Full Flow

Name: Mishimoto 2019+ RAM 6.7L Cummins Thermal Bypass Full Flow
Brand: Mishimoto
SKU: mishimoto-mishimoto-2019-ram-6-7l-cummins-thermal-bypass-full-flow-t14-774396
Price: 109.83 USD
Availability: InStock

$109.83

Only 4 left in stock

Fits 2019-2024 Ram 2500. Mishimoto 6.7L Cummins Thermal Bypass Full Flow Valve ensures constant transmission cooler flow for improved cooling.

Key Features

Fits 2019-2024 Ram 2500 and 3500 with the 6.7L Cummins engine.
CNC-machined aluminum construction for improved durability and heat dissipation.
Eliminates the stock thermal bypass valve's thermostat for constant fluid flow to the transmission cooler.
Features strategically machined internal passages for improved flow over the stock valve.
Cooling fins are machined into the valve body to aid in heat dissipation.
Helps prevent transmission overheating, especially during heavy towing or in warm climates.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

When you're towing heavy loads or driving in hot climates with your 2019-2024 Ram 2500, keeping your transmission fluid cool is critical. The transmission is responsible for handling the massive torque from the 6.7L Cummins engine, and excessive heat can quickly lead to damage. While the stock transmission cooler helps, the factory thermal bypass valve can sometimes prevent fluid from reaching it until the transmission is already hot.

Mishimoto has developed a full-flow thermal bypass valve upgrade designed to eliminate this issue. This valve removes the restrictive thermostat found in the stock unit, ensuring that transmission fluid is always directed to the cooler, regardless of temperature. This constant flow is especially beneficial for trucks in warm regions, those frequently towing, or any owner looking to maximize their transmission's cooling efficiency. The CNC-machined aluminum body not only looks good but also features internal passages for improved flow and cooling fins to help dissipate heat.

This kit is built to last and comes with Mishimoto's Lifetime Warranty, offering a durable solution for keeping your transmission running cool under demanding conditions.