Hydro-Gear 50735 51161 Lip Seal

This lip seal is engineered as a direct replacement for Hydro-Gear part numbers 50735 and 51161. It is designed for shaft sealing applications in Hydro-Gear BDA, BDP-10A, PE, PG, PJ, and PK series hydraulic pumps. The seal features a 17 mm inner diameter, 40 mm outer diameter, and 7 mm width profile constructed from nitrile rubber (NBR) for compatibility with hydraulic fluids and operating temperatures typical in hydrostatic transmissions. The component ensures reliable sealing performance to prevent fluid leakage and contamination ingress in hydrostatic drive systems. It fits a wide range of riding lawn tractors and zero-turn mowers manufactured by MTD Products under brands including Cub Cadet, Troy-Bilt, Bolens, Craftsman, White Outdoors, and Columbia. Verification of pump model and series is required prior to installation. Sold as a kit containing two seals.