The BEPCO 4501092 is a high-quality piston ring set designed for Perkins AD3.152, A3.152, and D3.152 engines. This genuine replacement part ensures optimal engine performance and longevity. It is suitable for various Massey Ferguson tractor models including MF 135, MF 148, MF 230, MF 240, MF 250, MF 340, MF 350, MF 355, and MF 550. The set features a bore of 91.49 mm and includes two compression rings and one oil ring, with thicknesses of 2.38 mm, 2.38 mm, and 4.76 mm respectively.