Subaru PCV Valve 2002-2005 WRX

The Positive Crankcase Ventilation (PCV) valve keeps crankcase gasses from building up inside your valve covers, while keeping foreign stuff out. This inexpensive part is important! A broken or clogged PCV can cause excess blow-by or blown seals from too much crankcase pressure.

Fits all 2002-2005 Subaru WRX.  Specify model year.