10% OFF SunCoast Performance Products • Use Code: LABORDAY10
Excludes Guardian 68RFE Torque Converters.
$400 OFF Guardian 68RFE Torque Converters • Use Code: GUARDIAN400
September 3–14, 2026 • Valid on qualifying SunCoast Performance products only.
EXTENSION HOUSING SEAL (LARGE 2 11/16 OD)
The Coan Racing COA‑22172 Extension Housing Seal (Large 2 11/16″ OD) is a precision-crafted, high-performance seal engineered for TH400 transmissions. Manufactured in the USA to Coan’s exacting standards, this seal forms a critical barrier at the extension housing interface, effectively preventing fluid leakage and preserving hydraulic pressure under extreme operating conditions.
Its robust construction ensures reliable performance amid high temperature and vibration, making it ideal for rebuilding or upgrading race, street, and strip transmissions that demand durability and tight sealing under high-stress environments.
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