Blade for lawn mower ALKO AL-KO models: GENIUS B 40-37 ORION 404A ORION 440 SUNLINE 480 CONCORD 4600B CHARACTERISTICS: length: 455 mm centre hole: 19.7 mm outer hole: 8 mm centre distance: 65 mm Code : 842545317 Original code : 545317 512800 513619 513625 530980 ALKO AL-KO