THIS KIT INCLUDES THREE SPINDLES, THREE BLADES AND A BELT. THE SPINDLES REPLACE PART NUMBERS 532 17 43-56, 532 17 43-58, 539 10 75-15, 174356, 174358, NHC 251-0608, 82-015, 703179, 22-903, AND 11014. MOUNTING HOLES ARE TAPPED, INCLUDES BLADE BOLT 174365, PULLEY LOCK NUT 178342, AND SPACER 129963 OR 187690. GREASE FITTING IS LOCATED ON TOP OF THE SPINDLE. THE BLADES REPLACE PART NUMBERS 195-062, 173920, 180054, 532180054, 532173920, 95-062, AND 539107519. LENGTH: 16 5/8" CENTER HOLE: 5PT. STAR OUTER HOLE: 5/16" CENTER TO CENTER: 3-15/16". A 48" DECK REQUIRES THREE BLADES. AND THE BELT REPLACES PART NUMBERS 180808, 532180808, 174369, B1EP52, 265-825, 531300771, AND 532174369.Warning:Lead-Nickel-Cancer and Reproductive Harm