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.