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Lincoln 7T4Z-18578-A Switch Assembly

2007-2010 Lincoln MKX 7T4Z18578A

Customer Questions & Expert Answers (3)
7T4Z-18578-A Ford Switch Assembly Product Photo 1 of 1
7T4Z-18578-A Ford Switch Assembly Product Photo 1 of 1
7T4Z-18578-A Ford Switch Assembly Illustration 1 of 1
  • Part Description
    Switch Assy
  • Base No.
    19986
  • Manufacturer
    Ford
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Specifications
  • Fitment
  • Q&A

  • Related Parts

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  • Product Specifications

    BrandGenuine Lincoln
    Base No.19986
    Manufacturer Part Number7T4Z-18578-A, 7T4Z18578A
    Part DescriptionSwitch Assy
    Other NamesBlower Motor Switch, Fan Switch
    Manufacturer NoteBlower Motor
    Item Dimensions6.2 x 4.2 x 4.1 inches
    Item Weight0.40 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerFord
    SKU7T4Z-18578-A
    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
    2007-2010 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

  • Customer Questions & Expert Answers

    Q:
    Does the PN fit my vehicle?
    A:
    You can Select Your Vehicle to check if 7T4Z-18578-A fits your vehicle.
    Posted and answered by Ford Parts Specialist Sonny
    Q:
    What is the final step of the removal process for the A/C Switch in the FCIM for the 2009 Ford Edge? Posted by Saar R.
    A:
    Disconnect the electrical connectors at the module and reverse the steps for installation. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist Clayton / Mar 08, 2025
    Q:
    What are the steps for removing the A/C Switch and the FCIM in the 2008 Lincoln MKX? Posted by Trenton S.
    A:
    Remove the left and right floor console side trim panels and the U-shaped trim around the floor shift console. Remove the shift console/cup holder trim panel and the storage compartment. Remove the floor console support fasteners and the instrument panel center vents. Remove the FCIM retaining screws and disengage the retaining clips to remove the module. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist Don / Sep 25, 2025

Genuine Ford Part 7T4Z-18578-A, the Right Choice

To ensure reliability, purchase part # 7T4Z-18578-A Switch Assembly. It is also called A/C Switch, Blower Motor Switch. 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 MKX models.

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