The John Deere GY21367 is a genuine OEM switch designed for a wide range of John Deere equipment. This essential component ensures proper electrical function and safety across various models, including 1000, 2000, 3000, and 4000 series compact utility tractors, ZTrak and QuikTrak zero-turn mowers, commercial walk-behind mowers, front mowers, and XUV/HPX/ProGator utility vehicles. It is a direct replacement part, ensuring compatibility and reliable performance for critical system operations.