This genuine Case IH 81871583 starter switch is an essential OEM replacement part for various Case IH agricultural and construction machinery, including Magnum, Maxxum, Puma, Steiger, Quadtrac, MXM, MXU, and STX series tractors. Designed for reliable engine ignition, this CNH Industrial original component ensures proper electrical function and durability. With a length of 95 mm, width of 70 mm, and height of 70 mm, and weighing 0.12 kg, it is built to precise specifications. Replaces part number 87309990.