Cutting blade 531 mm compatible lawn tractor mower mower JD 737 MID-FRAME Z-TRAK 757 MID-FRAME Z-TRAK Z810A PROFESSIONAL Z-TRAK Z820A PROFESSIONAL Z-TRAK Z830A PROFESSIONAL Z-TRAK Z840A PROFESSIONAL Z- TRAK Z850A PROFESSIONAL Z-TRAK Z910A PROFESSIONAL Z-TRAK Z920A PROFESSIONAL Z-TRAK Z925A PROFESSIONAL Z-TRAK Z930A PROFESSIONAL Z-TRAK Z950A PROFESSIONAL Z-TRAK Z960A PROFESSIONAL Z-TRAK Z970A PROFESSIONAL Z-TRAK MEASUREMENTS Central hole Round Centre hole in mm: 23.00 Width in mm: 63.50 Length in mm: 531.00 Thickness in mm: 6.30 CODE: 22-415 ORIGINAL CODE: JD M131958 M168223 CZ