58mm Piston Ring Clips Pin Set For Fits EX13 EX13D 4.5HP 4-Stroke Engines This piston ring clips pin set is designed for use with 58mm bore engines.It includes all necessary components for installation on EX13 and EX13D 4.5HP 4-stroke engine models.The set contains piston ring clips and retaining pins that secure the piston rings during assembly.These parts are engineered to meet specifications for proper fit and function.The components are made from materials suitable for small engine applications.This set supports repair and maintenance tasks involving piston replacement or engine rebuilds.