INPUT SHAFT SEALING RINGS, RACE (PAIR)

The Coan Racing COA‑12310A Race Input Shaft Sealing Rings are premium sealing rings designed specifically for GM Powerglide transmissions. Crafted to OEM dimensions and molded from durable materials, this pair of rings recreates the critical seal around the input shaft, restoring hydraulic integrity and preventing fluid bypass under high-pressure conditions.

Ideal for competitive or high-performance applications, these race-grade rings withstand higher thermal and pressure stresses than standard seals, while maintaining a reliable, leak-free fit. Whether used during full rebuilds or qualifying-level builds, the COA‑12310A rings deliver long-lasting durability and ensure smooth, consistent transmission function in demanding environments.