Pro Series 1 Stage TH400 Converter Dump Valve Kit

The Pro Series 1 Stage TH400 Converter Dump Valve Kit by Hughes Performance is designed for serious transmission builders and performance enthusiasts who operate TH400 automatic transmissions in high-horsepower applications. This kit is essential for heavily modified vehicles where standard torque converter cooler lines may fail under extreme pressure, potentially leading to severe transmission damage and expensive repairs.

The dump valve system serves as a safety mechanism, ensuring full converter efficiency during regular operation while redirecting excess fluid when cooler line pressure exceeds safe limits. This intelligent pressure-relief design prevents line ruptures without hindering heat dissipation during steady-state driving, keeping your transmission cool under demanding conditions. Crafted with precision-engineered internals and high-quality materials, this kit is built to withstand thousands of heat cycles.

The Pro Series 1 Stage kit is perfect for TH400 owners who exceed factory power levels, including those with street rods, muscle cars, trucks, and dedicated race vehicles. Installation is straightforward, integrating directly into existing cooler line circuits without requiring modifications to the transmission pan or housing, making it a simple bolt-on upgrade for experienced builders.