The Zetor 53359979 Starter Reducer GI is a genuine OEM electrical component designed for Zetor tractors. This high-quality starter features a 12V voltage, 2.7kW power output, and 9 teeth on the pinion, ensuring reliable engine starting performance. It is compatible with a wide range of Zetor tractor models, including the 3320, 3321, 3340, 3341, 4320, 4321, 4340, 4341, 5320, 5321, 5340, 5341, 6320, 6321, 6340, 6341, 7320, 7321, 7340, 7341, 8520, 8540, 9520, 9540, 10520, 10540, 11441, 11741, and 12441 series.