Mishimoto MMTC-RAM-TBVFF Full-Flow Thermal Bypass Valve for 13-18 Ram 2500/3500

Vehicle Fitment

• 2013-2018 Ram 2500/3500 (6.7L I6 Cummins)

Features

• Full-flow transmission thermal bypass valve to improve fluid delivery to cooler
• Direct-fit billet aluminum CNC-machined construction
• Eliminates stock thermostat bypass valve prone to failure
• Improves fluid flow to transmission cooler for lower operating temperatures
• Durable anodized finish for corrosion resistance
• Installs in under 1 hour with basic hand tools
• Includes quick-disconnect transmission line fittings
• Mishimoto Limited Lifetime Warranty

Specifications

• Part type: Full-flow thermal bypass valve
• Material: CNC-machined aluminum
• Finish: Anodized
• Inlet thread: 3/4"-16 quick-connect fittings
• Fitment years: 2013-2018
• Engine: 6.7 L I6 Cummins diesel

Included Components

• 1x Full-flow thermal bypass valve assembly
• 2x Quick-disconnect transmission line fittings
• Seals and mounting hardware

Product Description

The Mishimoto MMTC-RAM-TBVFF Full-Flow Transmission Thermal Bypass Valve Kit is engineered for 2013-2018 Ram 2500 and 3500 trucks equipped with the 6.7 L Cummins engine. It replaces the stock thermal bypass valve that restricts transmission fluid flow until reaching operating temperature. By eliminating the internal thermostat, this full-flow valve ensures continuous fluid delivery to the external transmission cooler, improving cooling efficiency during towing, hauling, or high-load conditions.

Constructed from CNC-machined billet aluminum with an anodized finish, the MMTC-RAM-TBVFF offers enhanced durability and long-term performance. The direct-fit design and included quick-disconnect fittings make installation straightforward, typically completed in under an hour. Perfect for diesel truck owners seeking improved transmission cooling performance and reliability without modifying stock cooler plumbing, this upgrade is backed by Mishimoto's Limited Lifetime Warranty.