The John Deere SA31754 rocker arm is an authentic OEM component designed for precise fit and reliable performance in compatible John Deere engines. This critical part facilitates the opening and closing of engine valves, contributing to efficient combustion and overall engine health. Manufactured to John Deere's rigorous quality standards, it ensures durability and proper function under demanding operating conditions. Verify fitment with your specific John Deere equipment model for correct application.