New Air Oil Separator or Pressure Regulating Valve for 03-05 Passat 1.8T, 99-05 Audi A4 1.8T. Fits AWM and AMB Engines Only.
Also known as a PCV Valve.
Alternative Part Numbers for this item: 06A 129 101D, 06A 129 101 D, 06A129101D, 06A129101D