BLADE FOR TORO GRANDSTAND 60 , G3 , Z500 , Z528 , Z550 , Z553 , Z555 , Z557 , Z558 , Z560 , Z580 , Z587 , Z588 , Z590 MODEL - TECHNICAL SPECIFICATIONS LENGTH 520 mm CENTRAL BORE 15. 8 mm OUTER HOLE - mm CENTRAL HOLE INDEX - mm CODE: 13271454 ORIGINAL CODE 105-7718-03 , 105-7718 SR