The RevMax 68RFE Transmission Cooler Thermostatic Bypass Upgrade is a performance-focused transmission cooling upgrade designed for Dodge Ram trucks equipped with the 6.7L Cummins engine and 68RFE or AS69RC transmission. Built from billet 6061 aluminum, this direct bolt-in module replaces the restrictive factory thermal bypass valve to improve transmission cooler flow and reduce operating temperatures. Designed for towing, heavy-duty use, and long-term transmission reliability, this upgrade helps eliminate one of the common factory cooling restrictions found in Cummins-equipped trucks. Key Features ZeroStat Technology: Eliminates the restrictive factory thermal bypass system for unrestricted cooler flow from startup.87% Improved Cooler Flow: Significantly increases transmission fluid circulation to improve cooling performance.Billet 6061 Aluminum Construction: Precision-machined billet housing provides superior durability and long-term reliability.Integrated Cooling Fins: Passive cooling fins help dissipate additional heat directly from the module.Direct Bolt-In Installation: No cutting, fabrication, or modifications required.Improved Transmission Longevity: Helps reduce excessive transmission heat that contributes to wear and failure.Easier Transmission Maintenance: Allows cooler line flushing without requiring heated fluid machines. Benefits / Why Choose This Product The RevMax bypass upgrade improves cooling efficiency and transmission reliability. With this upgrade, you can: Reduce transmission temperatures faster Improve towing reliability Eliminate factory thermal valve failure points Increase cooler flow significantly Simplify transmission maintenance and flushing It’s one of the most popular reliability upgrades for Cummins-equipped Ram trucks. Who Is This Product For This product is ideal for: Ram 2500 and 3500 owners Cummins diesel truck owners Heavy towing applications Off-road and performance truck builds Transmission reliability upgrades Diesel enthusiasts seeking lower temps Who Should NOT Buy This This product may not be suitable for: Non-Cummins vehicles Trucks outside supported transmission years Owners wanting factory-original cooling systems Light-duty drivers with no towing or heavy-load use Use Cases The RevMax upgrade is perfect for: Heavy towing Hot climate driving Transmission overheating prevention Transmission rebuild protection Performance diesel truck setups Long-haul hauling applications Specifications Feature Details Product Type Transmission cooler bypass upgrade Material Billet 6061 aluminum Cooling Technology ZeroStat unrestricted flow Cooler Flow Increase Approx. 87% Installation Direct bolt-in Cooling Fins Integrated Compatibility 68RFE & AS69RC transmissions Compatibility The RevMax 68RFE Transmission Cooler Thermostatic Bypass Upgrade is compatible with: Dodge Ram 2500 Dodge Ram 3500 6.7L Cummins diesel engines 68RFE transmissions AS69RC transmissions Model years 2013–2018 Setup / How to Use Basic installation steps: Remove factory cooler bypass module Install RevMax billet module Replace supplied O-rings and clips Reconnect cooler lines Verify proper transmission fluid circulation Professional installation is recommended for best results. Comparison Section RevMax Upgrade vs Factory Thermal Bypass Valve RevMax: Full cooler flow immediately at startup Factory Valve: Restricted flow until warm-up RevMax Upgrade vs Stock Cooling System RevMax: Better cooling efficiency and reliability Stock System: Higher restriction and possible valve failure Best Choice Choose RevMax for improved cooling and towing reliability Choose stock system for factory-original configuration What’s in the Box RevMax Billet Cooler Bypass Module O-rings and retaining clips Installation instructions Conclusion The RevMax 68RFE Transmission Cooler Thermostatic Bypass Upgrade is a smart reliability upgrade for Cummins truck owners who want improved transmission cooling and long-term durability. With unrestricted cooler flow, billet aluminum construction, and simple bolt-in installation, it helps address one of the most common factory cooling limitations found in the 68RFE platform. If you tow heavy, drive in hot climates, or simply want better transmission protection, this upgrade is an excellent addition to your diesel truck.
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