The KUHN R2056039 is a genuine OEM spur gear designed for various KUHN GMD series mowers. This essential transmission component ensures precise power transfer and durability in demanding agricultural applications. It features 20 teeth, an outer diameter of 73mm, an inner diameter of 35mm, and a width of 25mm. Compatible with a wide range of KUHN GMD models, including GMD 66, GMD 77, GMD 88, and numerous models within the GMD 600, 700, 800, and 900 series, including HD and HD-FF variants.