Cutting blade 483 mm compatible lawn tractor lawn mower JD 737 MID-FRAME Z-TRAK 757 MID-FRAME Z-TRAK Z-F620 Z-TRAK Z-F680 Z-TRAK Z-F687 Z-TRAK Z-M653 Z-TRAK Z- M655 Z-TRAK Z737 Z757 Z810A PROFESSIONAL Z-TRAK Z820A PROFESSIONAL Z-TRAK Z830A PROFESSIONAL Z-TRAK Z840A PROFESSIONAL Z-TRAK Z850A PROFESSIONAL Z-TRAK MEASUREMENTS Central hole Round Centre hole in mm: 23.00 Width in mm: 63.00 Length in mm: 483.00 Thickness in mm: 6.30 CODE: 22-417 ORIGINAL CODE: JD M136195 CZ