The New Holland 80440653 is a genuine OEM O-Ring designed for a wide range of New Holland agricultural and construction equipment. This O-Ring features an internal diameter of 34.52 mm, an external diameter of 40.08 mm, and a thickness of 2.78 mm, providing a critical seal in various hydraulic and fluid systems. It is compatible with numerous New Holland tractors, combines, forage harvesters, loader backhoes, wheel loaders, skid steer loaders, and compact track loaders, ensuring optimal performance and preventing leaks.