The NINMORTH Recoil Starter Spring is the perfect solution for any lawn mower engine motor's woes. Specially designed for 5.5 and 6.5 lawn mower engines, this starter spring ensures optimal functioning, reducing the need for frequent replacements. Made of high-quality zinc alloy, it guarantees durability and resistance to corrosion, making it an excellent investment for your lawn mower maintenance needs. The clear identification number and marking on the product ensure compatibility with specific engine models, assuring precision and efficiency. With the NINMORTH Recoil Starter Spring, you can trust in the reliability and performance of your lawn mower engine motor, ensuring trouble-free operation and reducing downtime.