Protect your RAM transmission with the Mishimoto MMTC-RAM2-TBVFF Thermal Bypass Full-Flow Valve Kit, designed for 2019-2024 RAM 2500 and 3500 trucks equipped with the 6.7L Cummins diesel engine and Aisin AS69RC transmission. The factory thermal bypass valve is designed to delay fluid flow to the transmission cooler until operating temperature is reached, but its internal thermostat can fail and restrict cooling. Mishimoto eliminates that failure point with a full-flow design that sends transmission fluid to the cooler under all operating conditions.
Constructed from durable CNC-machined billet aluminum, this Mishimoto thermal bypass valve features strategically engineered internal passages for improved fluid flow compared with the stock valve. Integrated cooling fins increase surface area to help dissipate transmission heat, supporting more consistent fluid temperatures during towing, heavy-duty work, and operation in warm climates. The full-flow configuration is especially well suited for trucks that require maximum transmission cooling efficiency and dependable performance under demanding conditions.
The MMTC-RAM2-TBVFF is engineered for direct installation on compatible RAM applications and is built for long-term durability. By helping transmission fluid reach the cooler continuously, this upgrade can reduce overheating risk and support extended transmission service life. Each valve kit is backed by the Mishimoto Lifetime Warranty for added confidence in a high-performance cooling-system upgrade. Professional installation is recommended, and transmission fluid levels should be checked after installation.
- Full-flow design eliminates the restrictive internal thermostat
- CNC-machined billet aluminum construction supports lasting durability
- Machined internal passages promote improved transmission fluid flow
- Integrated cooling fins assist with heat dissipation
- Designed for 2019-2024 RAM 2500 and 3500 trucks with the 6.7L Cummins and Aisin AS69RC transmission
- Backed by the Mishimoto Lifetime Warranty
Features:
- Full-flow design provides continuous transmission fluid flow to the cooler
- CNC-machined billet aluminum construction delivers durable, long-term performance
- Improved internal passages support efficient transmission fluid circulation
- Integrated cooling fins help dissipate transmission heat
- Helps reduce overheating risk during towing, heavy-duty use, and warm-weather driving
- Fits compatible 2019-2024 RAM 2500 and 3500 6.7L Cummins applications with the Aisin AS69RC transmission
- Mishimoto Lifetime Warranty
Fitment:
2019 Ram 2500 Big Horn
2019 Ram 2500 Laramie
2019 Ram 2500 Laramie Longhorn
2019 Ram 2500 Limited
2019 Ram 2500 Lone Star
2019 Ram 2500 Tradesman
2019 Ram 3500 Big Horn
2019 Ram 3500 Laramie
2019 Ram 3500 Laramie Longhorn
2019 Ram 3500 Limited
2019 Ram 3500 Lone Star
2019 Ram 3500 SLT
2019 Ram 3500 Tradesman
2020 Ram 2500 Big Horn
2020 Ram 2500 Laramie
2020 Ram 2500 Laramie Longhorn
2020 Ram 2500 Limited
2020 Ram 2500 Lone Star
2020 Ram 2500 Tradesman
2020 Ram 3500 Big Horn
2020 Ram 3500 Laramie
2020 Ram 3500 Laramie Longhorn
2020 Ram 3500 Limited
2020 Ram 3500 Lone Star
2020 Ram 3500 SLT
2020 Ram 3500 Tradesman
2021 Ram 2500 Big Horn
2021 Ram 2500 Laramie
2021 Ram 2500 Laramie Longhorn
2021 Ram 2500 Limited
2021 Ram 2500 Limited Longhorn
2021 Ram 2500 Lone Star
2021 Ram 2500 Tradesman
2021 Ram 3500 Big Horn
2021 Ram 3500 Laramie
2021 Ram 3500 Limited
2021 Ram 3500 Limited Longhorn
2021 Ram 3500 Lone Star
2021 Ram 3500 SLT
2021 Ram 3500 Tradesman
2022 Ram 2500 Big Horn
2022 Ram 2500 Laramie
2022 Ram 2500 Limited
2022 Ram 2500 Limited Longhorn
2022 Ram 2500 Lone Star
2022 Ram 2500 Tradesman
2022 Ram 3500 Big Horn
2022 Ram 3500 Laramie
2022 Ram 3500 Limited
2022 Ram 3500 Limited Longhorn
2022 Ram 3500 Lone Star
2022 Ram 3500 SLT
2022 Ram 3500 Tradesman
2023 Ram 2500 Big Horn
2023 Ram 2500 Laramie
2023 Ram 2500 Limited
2023 Ram 2500 Limited Longhorn
2023 Ram 2500 Lone Star
2023 Ram 2500 Rebel
2023 Ram 2500 Tradesman
2023 Ram 3500 Big Horn
2023 Ram 3500 Laramie
2023 Ram 3500 Limited
2023 Ram 3500 Limited Longhorn
2023 Ram 3500 SLT
2023 Ram 3500 Tradesman
2024 Ram 2500 Big Horn
2024 Ram 2500 Laramie
2024 Ram 2500 Limited
2024 Ram 2500 Limited Longhorn
2024 Ram 2500 Lone Star
2024 Ram 2500 Rebel
2024 Ram 2500 Special Service
2024 Ram 2500 Tradesman
2024 Ram 3500 Big Horn
2024 Ram 3500 Laramie
2024 Ram 3500 Limited
2024 Ram 3500 Limited Longhorn
2024 Ram 3500 SLT
2024 Ram 3500 Special Service
2024 Ram 3500 Tradesman
