FLUIDYNE EXTREME DUTY 4TH GEN BAR PLATE TRANSMISSION COOLER

Fluidyne Extreme Duty Transmission Cooler
2013-2018 Ram Heavy Duty
68RFE & Aisin AS69RC

Extreme Duty Bar & Plate Transmission Cooler for 2013-2018 Ram 2500/3500 (68RFE & Aisin AS69RC)

When you’re hauling heavy, towing big, or stacking horsepower , your transmission is working overtime. Excessive heat is the #1 enemy of the 68RFE and Aisin AS69RC transmissions found in 2013-2018 Ram 2500/3500 trucks. The Extreme Duty Bar & Plate Transmission Cooler is designed to dramatically increase cooling efficiency , ensuring your transmission stays protected and performing at its best —no matter how hard you push your truck.

Engineered for Maximum Cooling

• 4X the Fluid Capacity of Stock – More fluid means better heat absorption and dissipation, allowing your transmission to maintain consistent, safe operating temperatures under extreme loads.
• Bar & Plate Core for Superior Heat Rejection – The heavy-duty bar & plate design provides exceptional cooling efficiency and structural strength , outperforming standard tube-and-fin or stacked plate coolers in both cooling performance and durability.
• Dual-Pass Flow for Enhanced Cooling Efficiency – Unlike traditional single-pass coolers , which allow fluid to flow through the core once before exiting, this dual-pass design forces transmission fluid to circulate through the cooling core twice before returning to the system. This extended exposure to cooling airflow maximizes heat dissipation , making it a must-have upgrade for heavy towing, high torque loads, and extreme conditions .
• Proprietary Heat-Wicking Powder Coating – To further enhance cooling performance, the exterior is treated with a heat-wicking powder coating that pulls heat away from the cooler , increasing efficiency and reducing transmission fluid temperatures .
• Aerospace-Grade Aluminum Construction – Built from premium aerospace-grade aluminum , this cooler is highly resistant to corrosion, extreme heat, and road debris , ensuring long-lasting reliability .

Built for Durability & Performance

• Internally & Externally TIG Welded – Unlike factory and mass-produced coolers that rely on crimped connections , this unit is fully TIG welded inside and out for maximum strength and leak resistance .
• Handles the Toughest Environments – Whether you’re climbing steep grades with a heavy trailer or making high-horsepower runs , this cooler keeps your transmission temps in check—helping to extend transmission life and prevent costly failures .
• Designed for Heavy Work & High Performance – Whether your Ram is a workhorse, tow rig, off-road monster, or high-horsepower street truck , this cooler ensures your 68RFE or Aisin transmission runs at optimal temperature in the most demanding conditions.
• Easy Installation – Designed for a seamless fit in 2013-2018 Ram 2500/3500 trucks , requiring minimal modifications for installation.

The Bottom Line

Heat kills transmissions. The Extreme Duty Bar & Plate Transmission Cooler is the ultimate solution for keeping your 68RFE or Aisin AS69RC running cool , no matter the conditions. With 4X the fluid capacity , aerospace-grade materials , TIG-welded construction , a dual-pass flow design , and a proprietary heat-wicking powder coating , this cooler is built to outlast and outperform anything on the market.

Cooler temps. Longer transmission life. Maximum reliability. Upgrade today.