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The Gates PCV valve kit for 2002–2005 Audi A4 with the 1.8L four‑cylinder serves as a replacement oil separator and crankcase vent component. Designed for those Audi model years, it restores proper crankcase ventilation and oil‑vapor control, providing the correct fit and function for maintenance or repair of the A4’s engine venting system.
Gates 02-05 Audi A4 4-Cyl. 1.8L PCV Valve Kit Crankcase Vent Valves
