REVERSE PISTON .905 (5 CLUTCH STANDARD BRAKE / MANUAL)

The Coan Racing COA‑12843 Reverse Piston (.905″, 5-Clutch Standard Brake/Manual) is a precisely machined replacement piston designed for GM Powerglide applications utilizing a standard 5-clutch reverse brake stack. At .905″, this piston restores proper hydraulic pressure and surface area to ensure positive reverse engagement, while its OEM-style fit guarantees seamless compatibility with factory and performance builds.

Crafted from durable materials, the COA‑12843 delivers reliable sealing and consistent operation under pressure, making it an ideal choice for builders refreshing standard brake packs or seeking dependable reverse gear performance in high-capacity Powerglide setups.