The New Holland 4891258 O-Ring is an authentic OEM component designed to provide a secure and leak-free seal in various New Holland agricultural and construction equipment. Manufactured to precise specifications, this O-ring features an inner diameter of 34.6 mm, an outer diameter of 39.4 mm, and a thickness of 2.4 mm, ensuring optimal performance and durability in demanding applications. It is crucial for maintaining system integrity across a wide range of New Holland tractors, combines, excavators, and loaders.