Manufacturer HELLA Distance from belt pulley to alternator [mm] : 12 Fitting Depth [mm] : 17 Outer Diameter [mm] : 58 for manufacturer number : F-556614.XX for manufacturer number : F-235492.XX Manufacturer Restriction : Visteon Width [mm] : 39,7 Thread Size : M16x1,5 Inner Diameter [mm] : 17 Belt Pulley Ø [mm] : 54 Rotation Direction : Clockwise rotation Supplementary Article/Info 2 : with cap Number of grooves : 6 Assy./disassy. by qualified personnel required!