Rotary 5071 Premium Belt Set (1) 5071 & (1) 5016 Set of 2 belts Set includes 5071 belt (1/2" x 38") and 5016 belt (3/8" x 33") 5071 Replaces Belt (Industry Number): 4L380; Bolens: 172-6929; Gilson: 14790, 37230; Maxim: 320372204; Rotary: 7481; Southland: SP2-700; Toro: 271-104, 3-8445; Yardman: 754-275 5016 Replaces Arien: 07204200, 72042; Belt (Industry Number): 3L330; MTD: 754-0134, 954-0134; Rotary: 7438; Toro: 8-5660 5016 fits: MTD: 526R, 528B