Motorcycle Engine Cylinder Kit 74mm For NB300 ZS174MN-5 Cylinder Block Piston Ring Pin Gasket Pad Water-Cooled This engine cylinder kit is designed for use with NB300 ZS174MN-5 models.It includes a 74mm cylinder block, piston, ring, wrist pin, gaskets, and base pad.The components are built for water-cooled engine systems and support engine rebuilds or performance.The kit provides all necessary parts for cylinder assembly replacement. This is a non-OEM replacement part.Any trademarks or model numbers cited are used strictly to demonstrate compatibility.