TR4 pinion seal cross reference

["Bob Kramer" <rgk@flash.net>]

I'm at work, and I meant to bring the Part No. for the TR4 Pinion Seal so I
could locate a replacement at a local supplier, but I forgot. Does anyone have
the original Triumph part no., or even better, a part no. for a name brand. I
have the seal here with me, a "Pioneer Weston-W26215059R6", but the local
houses can't cross reference it.
TIA
Bob Kramer