Proven Part #50 X 67 Pitch Chain For LawnAire Zts Stand-On Aerators 4172864-03

#50 X 67 Pitch Chain. Compatible With Part Number 4172864-03. Fits The Following Classen Aerator Models SA-30 SN 0000 Thru 0299 -StandAire PRO, SA-30 S/N 0000 - 0124 StandAire PRO, SA-30 S/N 0125 to Present StandAire PRO , SA-30 SN 0125 and UP -PRO Stand-Aer SA-30A SN 0300 to 0420-PRO Stand-Aer, SA-30A SN 0421 to 0447-PRO Stand-Aer SA-30A SN 0448 Thru 0506-PRO Stand-Aer, SA-30A SN 0507and UP-PRO Stand-Aer SA-30ACA SN 0000 to 0100-PRO Stand-Aer, SA-30ACA SN 0101 to 0101-PRO Stand-Aer SA-30ACA SN 0101-PRO Stand-Aer, SA-30ACA SN 0102 and UP-PRO Stand-Aer, SA-30CA - S/N 0000 to Present LawnAire ZTS and SA-30CA SN 0000 and UP -PRO Stand-Aer.