John Deere Original Equipment Synchronous Belt – M158268. Part Specs: Belt Section(ALPHA): Ribbed. Effective Length(IN): 46.02. Width(IN): 1.25. Thickness(IN): 0.47. Material Spec(ALPHA): C. Fits John Deere Model XUV850D Gator Utility Vehicle (Diesel). This is a OEM John Deere Part.