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The Gates PCV valve kit for 2005–2009 Audi A4 2.0L four‑cylinder replaces the vehicle’s crankcase vent components to restore proper ventilation and oil separation. Intended specifically for the listed A4 applications, this replacement part supports the engine’s venting function and fitment needs when addressing worn separators or valves in those model years.
Gates 05-09 Audi A4 4-Cyl. 2.0L PCV Valve Crankcase Vent Valves
