The Piston Set for Mitsubishi K3D / K4D is a high-quality replacement part. Manufactured with premium materials, this piston set is designed to provide optimal performance and durability for your engine. Highlights Size:STD Piston Bore Size:73mm Piston Length:72mm Compression Height:STD 73 MOS2 72x30+19/2 Package Include:4 Pistons with Pin & Clips Brand: HDParts Country/Region of Manufacture:Taiwan Part Number:MM436618