OEM PTO Clutch replacement for John Deere part numbers TCA24445 and TCA22415.  You need to reference your mower's diagram to ensure it uses this clutch.  Some deck sizes may use a different clutch. Fits John Deere Models*: Z915B ZTrak™ (48" and 54" Models Only) Z915E ZTrak™  (48" and 54" Models Only) Z925M ZTrak™ (54" Serial Number 0 - 030000) 9.6 MCS DFS HOPPER *Reference your parts diagram for potential serial number ranges this clutch now fits.  You must match part numbers to ensure this is the correct replacement clutch for your specific John Deere. Specs: Bore (ID): 1.125" Pulley/Flange (OD): 6.62" Rated Torque: 125 lb-ft Mounting: Standard Rotation: CCW This is an authentic Warner 5219-179 OEM John Deere electric PTO Clutch P/N TCA24445.  5219179 now replaces 5219-144 (5219144).