Hello to all

Thanks in advance of any help I get on here. I've just bought a 2007 A6 2.0 TDI S-Line - 6 Speed Manual, and unsurprisingly, the "air con just needs a regas" turned out in fact to require a new compressor. Not shocked, and have had a local Kwik Fit attempt a regas - system holds pressure, but no cold air coming out, so very confident that the compressor is at fault. I'm aware that these fail and seize with age.

I don't have a spare £1k for a brand new Denso unit from TPS, therefore, am looking fo a breaker part. My question is about compatibility of parts/part numbers?

i know that the part number quoted to me by TPS, that is correct for my car is: 4F0260805AE

I've then found several brand new Denso units on eBay like this one:

Brand new original DENSO 8KD260805 AC Compressor for Audi A4 A6 A8 Q5 TDI TFSI

I can then see that this listing lists a series of compatible Audi part numbers like:

8KD260805 ; 4F0260805AA ; 4F0260805AE ; 4F0260805AH ; 4F0260805AL ; 4F0260805AR ; 4F0260805T ; 8E0260805BP ; 8E0260805BS ; 8E0260805CB ; 8K0260805E ; 8K0260805L

Therefore, my question is;

Can I not then buy pretty much any 4F0260805** Denso part-numbered compressor - (where the star represents either one or two final letters)? I'm looking at a number on eBay, and they all seem to be identical, and seem to be for all sorts of different Audi's (including my A6), from A4's to A5's and different VW's and Skoda's?

Thanks again for any help in advance!