John Deere Original Equipment Pulley - AUC20589

Belt Drive Pulley 

Part Specifications: Belt Section (ALPHA) HB, Effective Diameter (MM) 101.6000, Groove Width (MM) 14.2800, Angle (ALPHA) 34, Bore Size (MM) 8.0000, Key Width (MM) 0.0000, Length (MM) 20.5000, Material (ALPHA) H22, Note (A) There is more information on the engineering blue print that is not shown in detail here.

Fits the following John Deere models: 

Mower: 7700A, X330, X350, X350R, X354, X370, X380, X384, X390, X394, X584.

This is an O.E.M. John Deere part.