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The Gates PCV valve for 2009–2022 Toyota Corolla with the 1.8L four‑cylinder is a replacement crankcase vent valve meant to restore proper ventilation for that engine. It vents crankcase gases and helps maintain correct internal pressure; replacing a worn or faulty valve returns the system to intended operation and supports steady engine breathing over normal use.
Gates 09-22 Toyota Corolla 4-Cyl. 1.8L PCV Valve Crankcase Vent Valves
