Powerglide Pump Large O-Ring - Front Pump To Case

LARGE O-RING , FRONT PUMP TO CASE 

This premium large O‑ring is engineered to seal the critical interface between the front pump and transmission case in ATI Powerglide pump assemblies. Manufactured from high-quality materials, it retains fluid and prevents bypassing coolant flow, maintaining hydraulic integrity and converter charge. Precision-molded with exacting tolerances, the large O‑ring ensures consistent fitment and leak-free performance even under high RPMs and extreme thermal stress. As a vital sealing component in ATI’s high-flow pump systems, it supports reliable pressure control and contributes to overall drivetrain efficiency and durability.