Electric PTO Clutch / Warner 5228-20Pack Size:1Ferris 5101780, Warner 5228-20Diameter Pulley: 5 1/3 ", Direction: Counter clockwise, Made By: An OEM supplier, Height: 3 1/2 ", Designed For: Rugged use, For Proper Ordering: Reference Warner or Ogura part numbers stamped on clutch, Uses belt width: 3/8 " or 5/8", Installation: To prevent premature clutch failure, follow the instruction sheet included with the clutch, ID: 1 1/8 "