Rear Support Gasket

REAR SUPPORT GASKET

The Coan Racing COA‑12164 Rear Support Gasket is a finely crafted sealing component purpose-engineered for GM Powerglide transmissions. Precision-cut to conform to the rear support, this gasket ensures a tight, leak-free seal. It maintains proper hydraulic pressure and fluid containment, supporting the transmission’s internal stability under high-load and high-temperature conditions.

Designed to OEM specifications, the COA‑12164 offers reliable sealing performance, making it an ideal choice for both routine rebuilds and performance-focused Powerglide applications where maintaining internal sealing integrity is essential.