1 x New cast & machined Aluminium XK140 & XK150 Early Waterpump Pulley.  These aluminium (waterpump and crankshaft)  pullies are aluminium and so do wear away more than an equivalent  steel pulley would, making the belt drop further into the 'V' making the belt appear to stretch more than it actually has!  If a standard 1000mm long belt seems too long to adjust the slack out of, look at pulley wear as a culprit.  We do make a longer dynamo pulley adjuster to re-adjust for this wear problem. SEE 5784A 

Original Reference C7644.

NOTE : This pulley fits the common design XK140 / XK150 waterpump but is for a 10mm wide fan belt system. (Will also fit MK2 / MK7 / MK8 waterpump hub).

SEE DEPTH COMPARISON PICTURE OF  8473 (10mm) and 8474 (13mm ) PULLIES.