BILLET ALUMINUM INT PISTON, TH400 OEM REPLACEMENT

The Coan Racing COA‑22897 Billet Aluminum Intermediate Piston is a precision-engineered, direct replacement for the stock TH400 intermediate piston, crafted to elevate transmission performance under demanding conditions. Machined from high-strength billet aluminum, the piston offers superior durability and resistance to deformation compared to the OEM cast version. Its lightweight yet rugged construction ensures quicker apply times and more consistent hydraulic pressure control, which translates to improved shift quality and transmission response during high-load operation.

Designed to seamlessly fit into the TH400, the COA‑22897 drops in without additional modifications, making it ideal for racers and performance enthusiasts aiming to enhance both reliability and efficiency in their rebuilt transmissions.