The Massey Ferguson 1890149M1 is a genuine OEM O-ring, also cross-referenced as AGCO 1890149M1, designed to provide a critical seal in a wide range of Massey Ferguson agricultural machinery. This durable O-ring is essential for preventing leaks and maintaining system integrity. It is confirmed to fit numerous Massey Ferguson tractor models, including those from the 100, 200, 300, 400, 500, 600, 3000, 4200, 4300, 5400, 6100, 6200, 8100, 8200, and 8400 series, among others.