592 85 26-01 - COMPLETE PRINTED CIRCUIT Replaced by 586 81 35-01, 586 81 35-02, 586 81 35-03 Note that all main circuit boards require programming to function. Your local Husqvarna-dealer can do this for you.Fits:Automower 420, 2016 ->Automower 430X, 2016 ->Automower 440, 2017 ->Automower 450X, 2016 ->Automower 520, 2018 ->Automower 550, 2018 ->