John Deere Original Equipment Pulley – AM116141 Specifications: Belt Section(ALPHA) 0.6880, Effective Diameter(IN) 4.7598, Groove Width(IN) 0.5970, Effective Diameter(IN) 6.6102, Bore Size(IN) 0.7520, Groove Angle(ALPHA) 3438, Groove Spacing(IN) 2.0512, Finish (ALPHA) K-Painted. Fits the following John Deere models: 50 Tractor Mounted Mower. This is an O.