Manufacturer HELLA Distance from belt pulley to alternator [mm] : 17 Fitting Depth [mm] : 14 Outer Diameter [mm] : 65 for manufacturer number : F-556311.XX Width [mm] : 44,3 Manufacturer Restriction : Valeo Thread Size : M16x1,5 Inner Diameter [mm] : 17 Belt Pulley Ø [mm] : 60 Rotation Direction : Clockwise rotation Supplementary Article/Info 2 : with cap Number of grooves : 6 Assy./disassy. by qualified personnel required!