John Deere Original Equipment V-Belt - R71459. Specs: Belt Section(ALPHA): 0.5000. Length(IN): 57.5000. Width(IN): 0.5472. Thickness(IN): 0.3425. Angle(UNITY): 38.0000. Material Spec(ALPHA): POLYE. Fits the following John Deere models:  3020 Row-Crop Tractor (S.N. 123,000- ), 4000 and 4020 (S.N. 201,000- ) Tractors, 4010 Tractor, 4020 (S.N. -200,999) Tractor, 495D Excavator, 595 Excavator, 595D Excavator, 790 and 792 Excavators. This is an OEM John Deere part.