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Lincoln 2C5Z-6A666-AA PCV Valve

2003-2012 Lincoln 2C5Z6A666AA

Customer Questions & Expert Answers (2)
2C5Z-6A666-AA Ford PCV Valve Product Photo 1 of 4
2C5Z-6A666-AA Ford PCV Valve Product Photo 1 of 4
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2C5Z-6A666-AA Ford PCV Valve Illustration 1 of 1
  • Part Description
    Valve Assembly
  • Base No.
    6A666
  • Manufacturer
    Ford
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  • Specifications
  • Fitment
  • Q&A

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  • Product Specifications

    BrandGenuine Lincoln
    Base No.6A666
    Manufacturer Part Number2C5Z-6A666-AA, 2C5Z6A666AA
    Part DescriptionPCV Valve; Valve Assembly
    Manufacturer NoteWith Electric Heated PCV
    Item Dimensions6.2 x 4.0 x 4.1 inches
    Item Weight0.40 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerFord
    SKU2C5Z-6A666-AA
    WarrantyThis genuine Ford part is guaranteed by Ford's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65

  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2003-2005 Lincoln Aviator8 Cyl 4.6L DOHC EFI5-Speed Automatic Transmission 5R55S, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
    2007 Lincoln MKX6 Cyl 3.5L DOHC VCT SMPI6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Automatic Transmission 6F50, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
    2007-2012 Lincoln MKZ6 Cyl 3.0L OHC Duratec, 6 Cyl 3.5L DOHC VCT SMPI5-Speed Automatic Transmission Mazda FNR5, 5-Speed Manual Transmission (G5M), 6-Speed Automatic Transaxle - AWF21, 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Manual Transmission Mazda G6M, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive

  • Customer Questions & Expert Answers

    Q:
    I am wondering if this is the exact part that fits in.
    A:
    You can Select Your Vehicle to check if 2C5Z-6A666-AA fits your vehicle.
    Posted and answered by Ford Parts Specialist Tim
    Q:
    What is the purpose of the Positive Crankcase Ventilation (PCV) system and PCV Valve on Ford Ranger? Posted by Wady R.
    A:
    The PCV system reduces hydrocarbon emission by scavenging crankcase vapors and circulating fresh air through the crankcase. It uses a PCV valve, fresh-air filtered inlet, and vacuum hoses to connect to the engine and EECS system. The PCV valve restricts flow during high intake manifold vacuum to maintain idle quality. In abnormal conditions, excess blow-by gases flow back into the air cleaner for combustion.
    You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist Sonny / Dec 12, 2025

Genuine Ford Part 2C5Z-6A666-AA, the Right Choice

To ensure reliability, purchase part # 2C5Z-6A666-AA PCV Valve. It is also called PCV Valve. OEM parts are of high quality and known for their longevity. This is because they are built to the Ford standards which are relatively high and undergo rigorous quality control testing. This part fits specific Lincoln Aviator, MKX, MKZ models.

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