The Ford 81864341 gearbox disc spring is an OEM component designed for the transmission systems of a wide range of Ford and New Holland agricultural tractors. This critical spring ensures proper engagement and operation within the gearbox, contributing to smooth power transfer. With an outer diameter of 101.6 mm, an inner diameter of 50.8 mm, and a thickness of 2.5 mm, it is engineered to precise specifications for reliable performance. This disc spring is a direct replacement for original part numbers including 83917045.