For Models: For with the MS170 chainsaw, ensuring compatibility with multiple chainsaw models. Dimensions and Specifications: The piston ring has a diameter of 37mm and is suitable for the MS170 chainsaw, providing stable performance. Product Contents: Each package contains one piston ring set, suitable for replacement needs on MS170 chainsaws. Product Type: A piston ring kit specifically designed for the MS170 chainsaw, increasing power output and extending chain saw life. Quantity and Packaging: Each package contains one piston ring set, ensuring complete parts availability for replacements. Easy Installation: The piston rings are designed for easy installation, improving efficiency and reducing downtime., Manufacturer: UGYJWIOHA