SUN GEAR WASHER (INPUT SUN GEAR TO CARRIER)

The Coan Racing COA‑12442 Sun Gear Washer (Input Sun Gear to Carrier) is a precision-engineered washer designed specifically for GM Powerglide transmissions. It serves the vital role of maintaining optimal clearance between the input sun gear and the carrier, ensuring smooth gear engagement and accurate indexing of the planetary system.

Machined to strict factory dimensions, this washer enhances rotational efficiency and reduces gear wear by preserving correct endplay under load. Ideal for both performance builds and standard rebuilds, the COA‑12442 provides reliable hydraulic support and drivetrain longevity in any Powerglide setup.