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The oil filler cap seals the valve cover opening where oil is added to the engine, preventing oil vapor and pressure from escaping the crankcase ventilation system. Signs of a failing cap include: an oil mist around the filler area, a rough idle caused by a leaking cap acting as a vacuum leak, or a cap with a deteriorated gasket that no longer seals. Replace a leaking filler cap to seal the crankcase and prevent oil vapor from escaping.
Beck Arnley specializes in sourcing premium OE-quality parts from Aisin, Koyo, NSK, and other Japanese manufacturers. With over 100 years of experience, they deliver engine management components, cooling systems, drive train parts, and chassis components that meet or exceed original equipment standards. Beck Arnley represents Japanese engineering excellence at its finest.
This part also fits:
- 1999 Subaru Impreza RS Manual Trans.
- 2002 Subaru Impreza WRX Manual Trans.
- 2003 Subaru Impreza WRX Manual Trans.
- 2004 Subaru Impreza WRX
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