The McCormick 3484313M1 is a genuine OEM piston ring designed for agricultural machinery. This essential engine component ensures proper compression and oil control within the cylinder. It features an inner diameter of 101.6 mm, an outer diameter of 107.95 mm, and a thickness of 2.36 mm. This piston ring is also cross-referenced as an OEM part for various Massey Ferguson and Landini tractor models, providing broad fitment across multiple series.