This genuine McCormick O-Ring, part number 6523797M1, is designed for critical sealing applications in a wide range of McCormick agricultural machinery, including C, CX, MC, MTX, X60, X70, XTX, and ZTX series tractors. With an inner diameter of 40.0 mm, an outer diameter of 46.0 mm, and a thickness of 3.0 mm, this O-ring provides a precise and leak-free seal for optimal performance. It is also an OEM equivalent for Massey Ferguson, Landini, Fendt, Valtra, Laverda, and AGCO parts carrying the same number.