This sale is for one BRAND NEW REPLACEMENT IDLER PULLEY FOR THE BUSH HOG 88663. Made in the U.S.A.! Replaces bush hog part number 88663 This idler pulley fits on several different size machines that Bush Hog makes. Please know what you need before you buy. The dimensions are listed below and this is what you will receive. *** 5-3/4" diameter ***1-1/16" belt groove ***5/8" bore NOBODY SHIPS FASTER THAN WE DO!