The Mitsubishi MM406602 is a genuine OEM piston ring set designed for optimal performance and durability in various agricultural and industrial machinery. This high-quality ring set ensures proper compression and oil control for Mitsubishi S3L, S3L2, S4L, and S4L2 engines. It is also compatible with a wide range of tractors from brands such as Massey Ferguson (1529, 1532, 1533, 1540), Iseki (TXG series), Kubota (B series), Challenger (MT series), Fendt (200V/F/P series), AGCO (ST series, 1600 series), and Valtra (A/N series). This essential engine component helps maintain engine efficiency and extend service life.