Power Shaft Clutch Gear
CTPA-T30755 Replacement Part to Fit:  John Deere For Models: (1020, 1520, 1530, 2020, 2030 ALL WITH INDEPENDENT 540 RPM PTO) 73 TEETH, 6.500" I.D., 10.500" O.D.  Price:  $243.74  Buyers Club Price:  $219.37