TH400 Pump O-Ring - Pump To Case

TH400 - O-RING - PUMP TO CASE

This critical O‑ring creates a high-pressure seal between the front pump and transmission case in TH400 pump assemblies. Engineered to withstand hydraulic pressures, it prevents fluid bypass and ensures consistent converter charge and system pressure. Molded from premium material and manufactured to tight dimensional tolerances, this O‑ring offers reliable sealing performance even under high heat, vibration, and extended usage. As a direct-fit replacement, it’s an essential component in achieving leak-free operation and maintaining hydraulic integrity in high-performance and race-ready pump systems.