DOP33-134MTD                                        MTD Electric PTO Clutch.  Made by an OEM supplier.  1" ID, 6" Pulley for 5/8" belt.  Replaces # 717-04174, 917-04174A, 917-04174, & 717-04174A.   
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.