Were to get bosh plugs from wp50's I think ??

[gti jack]

Hi guys I'm doing a service on th 40 I've been advised to use bosh wpd50's I think that's what there called anyway, I've tried google and eBay and can't find any info on were to get a set? Am I looking for the wrong thing ?  Do they actually say wpd50 on them or are they a normal Bosch plug with that wp number being the part number?
Cheers again
Jack

[hayesey]

W5DP0 are what you want.  GSF is about the best place.  About £40 for a set.