The New Holland 87404473 is a genuine OEM back-up ring designed to provide essential support and prevent extrusion of O-rings in high-pressure sealing environments. This critical component ensures the integrity of hydraulic systems across a wide range of New Holland agricultural tractors, combines, telehandlers, wheel loaders, skid steer loaders, compact track loaders, forage harvesters, windrowers, graders, backhoe loaders, dozers, and excavators. It contributes to reliable sealing performance and extends the operational lifespan of associated seals.