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Mishimoto 2019+ RAM 6.7L Cummins Thermal Bypass Full Flow

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Original price $110.00
Original price $110.00 - Original price $110.00
Original price $110.00
Current price $99.95
$99.95 - $99.95
Current price $99.95
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The transmission is the backbone of your RAM. It's responsible for transmitting large amounts of torque from your 6.7L Cummins powerplant, and that torque generates heat. If that heat isn't dissipated, it can destroy your transmission. The transmission cooler does a good job of keeping trans fluid temperatures in check, but only if the fluid can reach it. The stock cooling system of the Aisin AS69RC utilizes an in-line thermal bypass valve that controls fluid flow to the transmission cooler. The purpose of this valve is to prevent transmission fluid from flowing to the cooler until it reaches operating temperature. The thermostat inside this valve is prone to failure, however, and when that happens, the fluid never flows to the cooler, and the transmission can overheat. That's why Mishimoto has developed a full-flow thermal bypass valve upgrade for your 2019+ RAM 6.7L Cummins. Our CNC-machined aluminum thermal bypass valve not only looks better than the stock unit, but it performs better too. This Mishimoto thermal bypass valve eliminates the internal thermostat, providing full fluid flow to the transmission cooler in all running conditions. This setup is ideal for owners in warm climates, those performing heavy towing, and trucks needing the best possible cooling efficiency for their transmission. The Mishimoto full-flow thermal bypass valve features strategically machined internal passages, providing improved flow over the stock valve for more effective cooling. In addition, cooling fins machined into the valve body add even more heat dissipation. This 2019+ RAM 6.7L Cummins Thermal Bypass Full Flow Valve Kit is built to last a lifetime with a durable CNC-machined billet aluminum design and our Mishimoto Lifetime Warranty.

  • Equipped with a bypass for uninterrupted cooling in hot weather conditions
  • Features a fully serviceable thermostat for rapid warm-up in cold weather
  • Helps extend transmission life and prevents overheating
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Vehicle Compatibility 81 vehicles

Year Make Model Submodel
2019 Ram 2500 Big Horn
2020 Ram 2500 Big Horn
2021 Ram 2500 Big Horn
2022 Ram 2500 Big Horn
2023 Ram 2500 Big Horn
2024 Ram 2500 Big Horn
2019 Ram 2500 Laramie
2020 Ram 2500 Laramie
2021 Ram 2500 Laramie
2022 Ram 2500 Laramie
2023 Ram 2500 Laramie
2024 Ram 2500 Laramie
2019 Ram 2500 Laramie Longhorn
2020 Ram 2500 Laramie Longhorn
2021 Ram 2500 Laramie Longhorn
2019 Ram 2500 Limited
2020 Ram 2500 Limited
2021 Ram 2500 Limited
2022 Ram 2500 Limited
2023 Ram 2500 Limited
2024 Ram 2500 Limited
2021 Ram 2500 Limited Longhorn
2022 Ram 2500 Limited Longhorn
2023 Ram 2500 Limited Longhorn
2024 Ram 2500 Limited Longhorn
2019 Ram 2500 Lone Star
2020 Ram 2500 Lone Star
2021 Ram 2500 Lone Star
2022 Ram 2500 Lone Star
2023 Ram 2500 Lone Star
2024 Ram 2500 Lone Star
2023 Ram 2500 Rebel
2024 Ram 2500 Rebel
2024 Ram 2500 Special Service
2019 Ram 2500 Tradesman
2020 Ram 2500 Tradesman
2021 Ram 2500 Tradesman
2022 Ram 2500 Tradesman
2023 Ram 2500 Tradesman
2024 Ram 2500 Tradesman
2019 Ram 3500 Big Horn
2020 Ram 3500 Big Horn
2021 Ram 3500 Big Horn
2022 Ram 3500 Big Horn
2023 Ram 3500 Big Horn
2024 Ram 3500 Big Horn
2019 Ram 3500 Laramie
2020 Ram 3500 Laramie
2021 Ram 3500 Laramie
2022 Ram 3500 Laramie
2023 Ram 3500 Laramie
2024 Ram 3500 Laramie
2019 Ram 3500 Laramie Longhorn
2020 Ram 3500 Laramie Longhorn
2019 Ram 3500 Limited
2020 Ram 3500 Limited
2021 Ram 3500 Limited
2022 Ram 3500 Limited
2023 Ram 3500 Limited
2024 Ram 3500 Limited
2021 Ram 3500 Limited Longhorn
2022 Ram 3500 Limited Longhorn
2023 Ram 3500 Limited Longhorn
2024 Ram 3500 Limited Longhorn
2019 Ram 3500 Lone Star
2020 Ram 3500 Lone Star
2021 Ram 3500 Lone Star
2022 Ram 3500 Lone Star
2019 Ram 3500 SLT
2020 Ram 3500 SLT
2021 Ram 3500 SLT
2022 Ram 3500 SLT
2023 Ram 3500 SLT
2024 Ram 3500 SLT
2024 Ram 3500 Special Service
2019 Ram 3500 Tradesman
2020 Ram 3500 Tradesman
2021 Ram 3500 Tradesman
2022 Ram 3500 Tradesman
2023 Ram 3500 Tradesman
2024 Ram 3500 Tradesman