The 3551525M2 is a genuine Massey Ferguson piston ring, also cross-referenced for McCormick applications. This essential engine component ensures proper compression and oil control within the cylinder. Manufactured to OEM specifications, it features an inner diameter of 89 mm, an outer diameter of 95 mm, and a thickness of 2.5 mm. It is compatible with a wide range of Massey Ferguson tractor models and engines, including those utilizing Perkins components.