Hayden Automotive 699 Rapid-Cool Transmission Oil Cooler with Thermal Bypass

The Hayden Automotive 699 Rapid-Cool Transmission Oil Cooler is an advanced cooling solution designed to protect your transmission and extend its service life. This premium cooler features a patented thermal bypass system that's particularly beneficial in colder climates, allowing your transmission to reach optimal operating temperature quickly while providing superior cooling when needed.

Key Features:

• Plate and fin construction is 33% more efficient than comparable tube and fin designs
• Patented internal thermal bypass valve eliminates the need for external valves and additional plumbing
• 100% pressure tested to 150 PSI for quality assurance and reliability
• 30-row aluminum core construction with integrated turbulation for efficient heat transfer
• Compact design measures 11 inches wide x 11.625 inches high x 0.75 inches thick
• 3/8-inch hose barb fittings for easy installation
• Compatible with OEM cooler systems for seamless integration
• Includes all necessary mounting hardware

The thermal bypass feature routes transmission fluid through a bypass channel until it reaches optimal operating temperature, then automatically directs flow through the cooling core. This intelligent design improves fuel economy, reduces friction on internal components, and helps prevent transmission damage from cold starts. The high-efficiency plate and fin design with patented internal turbulation ensures maximum heat transfer with minimal pressure drop, making it ideal for towing applications, performance vehicles, and daily drivers alike.