[pilot4fn]

Originally Posted by Homeoboxter

Sure, here are the ebay links:

https://www.ebay.com/itm/Mercedes-R107-W124-W126-R129-W140-W201-Air-Injection-Valve-MTC-000-140-77-60/271827041358?ssPageName=STRK%3AMEBIDX%3AIT&_trksid =p2057872.m2749.l2649

https://www.ebay.com/itm/Air-Pump-Check-Valve-MTC-Secondary-Air-Injection-Pump-Check-Valve-WD-Express/114024716057?ssPageName=STRK%3AMEBIDX%3AIT&_trksid =p2057872.m2749.l2649

I found another one, which seems to be the same exact part Porsche uses, FYI:

https://www.ebay.com/itm/Mercedes-R107-W124-W126-R129-W140-W201-Air-Injection-Valve-Shut-off-Valve/370820859705?fits=Make%3AMercedes-Benz&epid=1911251163&hash=item5656a54739:g:8mUAAOS wgv5ZVnyW

Fantastic, thanks