For 72mm cylinder block piston ring pin kit compatible with XC XCW EXC TE TX 300 models from 2017 to 2018.This engine part set includes components designed for pit bike and dirt bike applications, providing a complete solution for piston and cylinder assembly replacement.Suitable for use in maintenance and repair of two-stroke engines where precise fitment is required.The kit contains a piston, connecting rod, piston pin, rings, and associated hardware necessary for installation.Engineered to meet specifications for performance in off-road and recreational riding conditions. Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.