John Deere Original Equipment V-Belt – M163620 Specifications: Belt Section HBB, Effective Length 122.441 IN, Width 0.00 IN, Thickness. 00 IN, Angle 32, Material Spec ARAMID. Fits the following John Deere models: X744, X748, MC519, X724, 54C, X728, X465, X575, X700, 60D, X720, 62C, 48C, X595, X495, X485, X585, X740, X475, X749, X729. This is an O.