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Description
The Positive Crankcase Ventilation (PCV) valve keeps crankcase gases 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 2009-2014 WRX. Also fits 2010-2013 Forester XT
