The Coan Racing COA‑12041 Trans-Brake Replacement Valve & Spring is a precision-engineered replacement component for GM Powerglide and other Turbo Hydramatic transmissions, offering a reliable solution for worn or missing factory trans‑brake valves. Crafted with quality and performance in mind, this direct-fit assembly includes both the valve and spring, ensuring consistent hydraulic activation for clean, crisp trans‑brake engagement.

Designed to meet Coan’s rigorous standards, the COA‑12041 reproduces OEM functionality with enhanced durability, making it ideal for restoring or upgrading manual valve bodies in street, strip, or competition vehicles. Its seamless integration into existing systems and race-proven reliability provide confident, repeatable launch control, helping maintain peak performance for Powerglide builds.