Xtreme PTO Clutch replaces John Deere OEM Part #: AM100421, AM103252, AM103575, AM103991, AM116184, AM118770; Ogura# MA-GT-JD22; Rayco# 80513. 4-5/8" Pully Diameter, 1-7/16" Inside Diameter with Clockwise Rotation and Double A belt width. Cool Coil Technology with replaceable high-temp bearing upgrade. To prevent premature clutch failure, follow the instruction sheet included with the clutch. Upgraded to 3 Layer "Xtreme TOUGH" Integrated, Water Tight Wire Harness. Fits John Deere Models: F910, F912, F915 and F935.