The Hitachi 4251767 Dust Seal Ring is an authentic OEM component engineered to provide superior protection against dust and debris for various Hitachi construction excavators. Measuring 130mm inner diameter, 150mm outer diameter, and 7mm thickness, this seal ensures a precise fit and reliable performance, contributing to the longevity and operational efficiency of critical machinery components. Manufactured to Hitachi's stringent quality standards, it is essential for maintaining the integrity of hydraulic systems and other sensitive areas in demanding work environments.