Exmark Electric PTO Clutch No. 109-7665. Made by an OEM Supplier. For Exmark Lazer Z HP 27 Horsepower serial numbers 720,000 and up. 1 1/8" ID, 7 1/4" diameter pulley, for 5/8" belt. Replaces Exmark part # 109-7665 and 103-3246. 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.