The Piston Rings Set - Standard size 73mm for MITSUBISHI K4D, a premium quality piston ring set designed to provide optimum performance and durability for your engine. This set includes 1 complete piston ring set of 4 cylinder, ensuring a reliable and efficient operation of your engine. Highlights Engine Model : Mitsubishi K4D Brand : Riken Taiwan Size : STD Country/Region of Manufacture : Taiwan Piston Bore (mm) : 73mm Ring Size (mm) : 73x2.5HKx2x2x4 Manufacturer Part Number : MM406600 Package Include : 1 Complete Piston Ring Set of 4 Cylinders