Adjustable Pressure Regulator Kit - Includes New Regulator Valve (185-290 PSI)

The Coan Racing COA‑12047 Adjustable Pressure Regulator Kit brings enhanced control and reliability to GM Powerglide transmissions, enabling tuners and racers to precisely dial in line pressure between 185 and 290 psi. This comprehensive kit includes a fully machined replacement regulator valve and all necessary hardware, allowing users to upgrade worn or obsolete factory pressure components without needing a complete valve body overhaul.

Engineered for straightforward installation into existing Powerglide assemblies, the COA‑12047 restores consistent operating pressure and offers an easy-to-adjust tuning range, ideal for optimizing shift firmness and preventing slippage under varying power levels. Manufactured in the USA by Coan since 1976, this kit delivers track-proven durability and performance, giving enthusiasts and professionals a reliable, bolt-in solution for maintaining peak transmission health and drivability.