FRONT PUMP SEAL (PG, TH400, TH350)

The Coan Racing COA‑12171 Front Pump Seal is a precision-engineered replacement seal designed for the front pump interface in GM Powerglide, TH400 and TH350 transmissions. Molded from high-quality materials, this seal replicates the original factory dimensions to provide a tight, leak-resistant fit, ensuring dependable fluid retention under operating pressures.

Built to meet Coan’s performance standards, this durable seal resists wear and thermal degradation, making it equally suitable for daily drivers and high-performance builds. Its direct-fit design simplifies installation and restores proper hydraulic integrity without the need for modifications, ensuring optimal pump function and reliable transmission performance.