The McCormick 3557992M1 piston ring is a high-quality, genuine replacement component designed for Perkins 1000 Series engines. This essential engine part ensures proper compression and oil control, crucial for engine performance and longevity. With a bore diameter of 95mm, a height of 5.1mm, and a thickness of 4.2mm, it is engineered to meet OEM specifications. It is compatible with a wide range of McCormick CX, MC, MTX series tractors, various Massey Ferguson models, and Landini 60, 70, 80, 4000, 5000, 6000, 7000, and 8000 series tractors.