GASKET AND SEAL KIT

The Coan Racing COA‑22121 Gasket & Seal Kit is a meticulously curated rebuild set designed for Turbo‑Hydramatic 400 transmissions. Crafted in the U.S. to Coan’s performance-focused standards, this kit includes a comprehensive assortment of gaskets, sealing rings, and O-rings essential for refreshing every hydraulic seal point within the transmission and valve body. It provides all the interior sealing components necessary to prevent leaks, maintain precise hydraulic pressure, and ensure dependable engagement of clutches and bands.

Ideal for both maintenance and full rebuild applications, this kit is the essential foundation for restoring internal integrity before installing clutch and band packs, helping to deliver reliable, leak-free operation in high-stress performance environments.