The John Deere AL221091 Mode Switch is a genuine OEM replacement part designed for various John Deere agricultural machinery. This essential control component ensures proper function and selection of operating modes within the machine's system, maintaining optimal performance and operator interface. It is compatible with numerous models, including 5R, 6R, 7R, 8R, 8RX, 9R, 9RX series tractors, R4000 series sprayers, CP690 cotton pickers, CS690 cotton strippers, 8000 and 9000 series forage harvesters, and W200 series windrowers. The switch features a compact design, measuring 95mm in length, 51mm in width, and 51mm in height, with a weight of 0.12 kg.