Keep your lawn equipment performing at its best with this premium 42-inch replacement blade set. This 4-blade set is specifically designed to fit multiple mower models including LA102, 115, 135, X300, and X304, making it a versatile replacement option. The blades are precision-engineered to deliver a clean, even cut across your lawn. Compatible with part numbers AM137327 and M154061, these durable steel blades maintain the cutting efficiency of your mower. Each blade in this set is manufactured to meet original equipment specifications, ensuring proper fit and reliable performance. Installing fresh blades helps maintain optimal cutting performance and extends the life of your mower. Regular blade replacement is essential for maintaining a well-manicured lawn and preventing unnecessary strain on your mower's engine.