Piston Ring Kit For 173F Air Cooled 4 Stroke 4.3KW Diesel Engine Generator Parts This piston ring set is designed for use with 173F air cooled 4 stroke diesel engines producing 4.3 kilowatts of power.It serves as a replacement component for generator engine assemblies.The kit includes multiple rings necessary for proper cylinder sealing and engine function.These rings are engineered to fit standard 173F engine configurations used in small-scale power generation units.Installation requires basic mechanical tools and knowledge of engine disassembly procedures.