Well, sadly, when I got my Volks, somepone at the factory in Japan forgot to put one in the box.
So when I bought them and turned up at the fitters, we only had 3 stem valves.
Tony @ Envy, then made a trip round to find a valve and found a truck/lorry valve.
it was identical to the ones Volk supplied, only difference has the rubber o-ring, but that only needed a little trimming to fit.
So short aswer:
Yes, it 100% fit and worked for me