Manufacturer HELLA Distance from belt pulley to alternator [mm] : 9 Fitting Depth [mm] : 12,3 Outer Diameter [mm] : 75 for manufacturer number : F-580303.XX Manufacturer Restriction : Denso Width [mm] : 39,9 Thread Size : M14x1,5 Inner Diameter [mm] : 17 Belt Pulley Ø [mm] : 70 Rotation Direction : Clockwise rotation Supplementary Article/Info 2 : with cap Number of grooves : 7 Assy./disassy. by qualified personnel required!