Injector pump seal

[-Matt-]

Hello all.
I need to replace the seals on the advance plunger thingy on the injector pump as detailed in Dandys excellent thread. Using this thread and a number of others for little bits of info to help, I'm still none the wiser about the seal itself.
As per Dandys thread, on page 2, a user pointed out that an R20 washer has worked fine, but is this radius 20 and therefore 40mm dia? Is this i/d or o/d such as the difference between tube and pipe?
Not sure on the cross section, or if we know the Bosch part number for it?
Thanks
Matt

[Ian]

I don't know the size I'm afraid and can't measure one as we don't have any left. The Bosch part number is 2-460-223-001 but are no longer manufactured. You might find some residual stock somewhere though. You could also try www.mazdabongo.com who have diesel pump repait kits containing all seals, gaskets etc.

[-Matt-]

Thank you very much for taking the time to find the part number!
A quick Google gives a bunch of online parts suppliers, not sure how trustworthy they are and although there is no photo of the item they do have it listed as a diesel seal for £1.68.
Ebay shows a listing with a photo at £10 each from the Netherlands, at least they look like the one in the thread here.

Thanks again.