FLAT THROAT PULLEY WITH BEARING FOR RIDE-ON MOWER LAWN MOWER COMPATIBLE LAWN MOWER ALPINA CASTELGARDEN MOUNTFIELD STIGA TECHNICAL SPECIFICATIONS ALPINA MODELS :1330 M , 1430M , 1530M CASTELGARDEN : MPX 84 HYDRO , XDC 135 HD , XDC 140 , XDC 140 HD , XDC 150 , XDC 150 HD , XDC 160 HD , XDC 170 , XDC 170 HD MOUNTFIELD : 1330M , 1430M , 1530M STIGA : SUMMER 2084 , SUMMER 2084 H , SUMMER 3084 H , SUMMER 3098 H , SUMMER 3384 H , SUMMER 3398 H OUTER DIAMETER 61.9 mm INNER DIAMETER 14.3 mm HEIGHT 17.5 mm CODE: 31270312 ORIGINAL CODE: 125601592/0 SR 180