This genuine McCormick 1664491M2 piston ring is engineered for optimal engine performance and sealing. Featuring an inner diameter of 95 mm, an outer diameter of 101 mm, and a thickness of 2.5 mm, this high-quality ring ensures a precise fit. It is compatible with a wide range of Massey Ferguson and McCormick tractor models, including popular CX, MC, MTX, and XTX series, as well as numerous MF 100, 200, 300, 500, 600, 8000, and 8200 series tractors.