Set of 4 aftermarket 99.25" 5/8" polyester core drive belts for several models of disc mowers. Compatible with John Deere part number ES10774 for models 260 and 270. Also compatible with Kuhn part number 83101673 for models GMD500, GMD500S, GMD55S, GMD66. GMD66HD, GMD77 and GMD77HD. Also compatible with Ford New Holland part number 274224 for models 442, 452, 462, 463 and 465. Also compatible with Frontier part number KN83101673 for models DM1150, DM1160 and DM1270.