Torque Converter 2500 Stall Series GM TH400

The Hughes Performance Torque Converter 2500 Stall Series GM TH400 is a high-performance transmission component engineered for vehicles running General Motors TH350 and TH400 automatic transmissions. This torque converter is purpose-built for operators and enthusiasts who demand improved acceleration response, better load-carrying capability, and enhanced driveline engagement. Whether you're upgrading a heavy-duty truck, performance vehicle, or emergency response apparatus, the 2500 RPM stall rating delivers the mechanical advantage needed for off-the-line authority and sustained pulling power.

The 2500 stall torque converter operates by coupling engine output to transmission input through fluid dynamics, holding the turbine stationary until engine RPM reaches the rated stall threshold—in this case, 2500 RPM. At that breakaway point, the converter locks and transfers power directly to the transmission with minimal slippage, reducing heat generation and parasitic losses. The 10.750-inch bolt circle diameter ensures proper fit on compatible GM transmission housings, while the robust construction withstands repeated high-torque engagements typical of tactical vehicle operations, towing applications, and performance driving. This design minimizes transmission fluid temperature rise and extends service life under demanding conditions.

Operators and technicians upgrading TH350 or TH400-equipped vehicles benefit from the immediate throttle response and launch characteristics this converter provides. Installation is straightforward for certified transmission specialists, requiring removal of the factory unit and bolt-on replacement to the transmission housing. The 23.9-pound assembly integrates seamlessly with stock and upgraded transmission internals, making it an ideal choice for fleet managers, military vehicle maintenance teams, and off-road enthusiasts seeking reliable performance without extensive drivetrain modifications. Proper installation and fluid maintenance are essential for optimal performance and longevity.