OEM part number needed

[4WDrifter]

Hi all,
Could someone tell me the OEM part number for the front right steering arm on a RHD uR quattro 1988 MB.
It might be 811419802 plus a letter.
OR 857419802B?

[Obli]

I can't (and I'm not trying to be difficult) but it's well worth getting familiar with this.

https://audi.7zap.com/en/rdw/

It's been a valuable site for me to check / confirm oem part numbers. I noticed on my phone that there's a column missing from the list of part numbers that gives valuable info. I access the site on a bigger screen to ensure it's all displayed, including engine codes or chassis no. applicability.

[4WDrifter]

Thanks Obli, this is the Rosetta site for me!