The Yanmar 172A6429100 is a genuine OEM drive sprocket designed for Yanmar VIO17 series mini excavators, including models VIO17, VIO17-A, VIO17-B, VIO17-C, VIO17-D, and VIO17-E. This critical undercarriage component ensures efficient power transfer to the tracks, providing optimal traction and durability. Featuring 23 teeth, an outer diameter of 280 mm, an inner diameter of 200 mm, and 6 bolt holes, this sprocket is crafted to Yanmar's precise specifications, guaranteeing a perfect fit and long-lasting performance in demanding operating conditions.