Piston Ring Kit For 173F Air Cooled 4 Stroke 4.3KW Engine Generator Parts This piston ring kit is designed for use with 173F air cooled 4 stroke engines producing 4.3KW of power.It includes all necessary piston rings for engine rebuilds or maintenance.The components are engineered to fit standard specifications for consistent performance in generator applications.Suitable for replacement in compatible engine models, the kit supports proper compression and efficient engine.Installation requires standard mechanical tools and knowledge of small engine repair. Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.