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Ford FOTZ-12B579-A Sensor Assembly

1990-1995 Ford FOTZ12B579A

Customer Questions & Expert Answers (3)
FOTZ-12B579-A Ford Sensor Assembly Product Photo 1 of 1
FOTZ-12B579-A Ford Sensor Assembly Product Photo 1 of 1
FOTZ-12B579-A Ford Sensor Assembly Illustration 1 of 1
  • Part Description
    SENSOR ASY
  • Replaced By
    FO7Z-12B579-AARM
  • Manufacturer
    Ford
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Specifications
  • Fitment
  • Q&A

  • Related Parts

    Shop for related parts for your vehicle

  • Product Specifications

    BrandGenuine Ford
    Manufacturer Part NumberFOTZ-12B579-A, FOTZ12B579A
    Part DescriptionSENSOR ASY
    Item Dimensions6.2 x 4.9 x 6.1 inches
    Item Weight2.60 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerFord
    SKUFOTZ-12B579-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
    1990-1995 Ford Aerostar6 Cyl 4.0L4AT 4R44E, 4AT 4R55E, 4AT A4LD, 5MT
    1992-1994 Ford Explorer6 Cyl 4.0L4AT A4LD, 5MT
    1990-1994 Ford Ranger6 Cyl 4.0L4AT A4LD, 5MT
    1991 Lincoln Town Car8 Cyl 4.6L4AT AOD

  • Customer Questions & Expert Answers

    Q:
    Is this the correct part for the attached VIN?
    A:
    You can Select Your Vehicle to check if FOTZ-12B579-A fits your vehicle.
    Posted and answered by Ford Parts Specialist Matthew
    Q:
    What is the purpose of the Mass Air Flow Sensor in the 1992 Ford Explorer? Posted by Catherine P.
    A:
    The MAF sensor is used to measure air molecular mass in the air intake duct and convert temperature changes into an analog voltage signal for the PCM to calculate the necessary fuel injector pulse width. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist Jack / Jan 13, 2024
    Q:
    What are the steps for replacing the Idle Air Control (IAC) valve and the Mass Air Flow Sensor for the 1994 Ford Ranger? Posted by Jodie M.
    A:
    To replace the Idle Air Control (IAC) valve, disconnect the battery, remove the IAC valve cover, disconnect the electrical connector, and unfasten the screws. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist John / Dec 22, 2025

Genuine Ford Part FOTZ-12B579-A, the Right Choice

To ensure reliability, purchase part # FOTZ-12B579-A Sensor Assembly. It is also called Mass Air Flow Sensor. 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 Ford Aerostar, Explorer, Ranger models. It fits Lincoln Town Car.

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