The Case IH 682444C1 is a genuine OEM piston ring designed for optimal performance and durability in a wide range of Case IH agricultural and industrial machinery. This essential engine component ensures proper compression and oil control, critical for the D436, D466, DT436, and DT466 engines. It is compatible with numerous tractor models including 766, 886, 966, 1066, 1466, 1566, and later series, as well as 1400 and 1600 series combines, cotton pickers, forage harvesters, and various industrial/construction equipment.