Grasshopper Electric PTO Clutch No. 606242. This is made by an OEM supplier with a shaft id of 1 1/8" and a double pulley that measures 4 7/8" for a 1/2" belt. Replaces Warner numbers 5218-58, 5218-26 and 5218-257, Ariens part numbers 00574200and 09407700, Grasshopper part number 388767 and 606242, Snapper part numbers 3-5520 and 5-8925, and woods part number 73558 PTO clutches are FINAL SALE upon checking out. They can not be returned once they have been ordered regardless of whether it's been opened or not.