If you have to replace your valve body on a earlier model before 2003 following is available

A4 (B6) from 8E-5A053574

A6 (C5) from 4B-5N010000

A6 (C6) from 4F-5N034000

For later models you have to use following options:

01J 325 031 BC for models without S-Program

01J 325 031 BP for models with S-Program

Attention:  for the Audi with the transmission code DZN  2.8L gasoline engine the software in the control unit have to be replaced "Flush"  with the Update CD 4F0 906 961C