Mishimoto Transmission Cooler for RAM 6.7L Cummins with Thermal Bypass Valve

Mishimoto Transmission Cooler for RAM 6.7L Cummins with Thermal Bypass Valve Protect your transmission — the 6.7L Cummins delivers massive torque, and unmanaged heat will shorten transmission life. The Mishimoto Transmission Cooler with an upgraded thermal bypass valve ensures your 2019+ RAM's transmission fluid reaches the cooler faster and stays in an optimal temperature range. Key Benefits Improved thermal management: Replaceable thermostat opens ~10°F earlier than stock for quicker coolant routing to the cooler. Durable CNC-machined construction: Lightweight aluminum body with cooling fins for added heat dissipation and a black anodized finish for long-term protection. Configurable bypass: Removable summer/winter bypass allows full flow to the cooler when needed — simple swap with a wrench. Better flow than stock: Optimized design increases flow in both bypass and regulated modes for more effective cooling. Lifetime peace of mind: Backed by the Mishimoto Lifetime Guarantee. Why Upgrade? The OEM inline thermal bypass valve can fail or stay closed too long, preventing fluid from reaching the cooler and risking overheating. Mishimoto’s improved valve solves that with a more durable thermostat, earlier opening temperature, and enhanced flow — ideal for towing, heavy duty use, and hot climates. Compatibility: Designed for 2019+ Dodge RAM equipped with the 6.7L Cummins (works with 68-RFE and Aisin AS69RC systems).