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Lincoln F55Y-9D475-A Exhaust Gas Valve

1998-2002 Lincoln Navigator F55Y9D475A

Customer Questions & Expert Answers (3)
F55Y-9D475-A Ford Exhaust Gas Valve Product Photo 1 of 2
F55Y-9D475-A Ford Exhaust Gas Valve Product Photo 1 of 2
F55Y-9D475-A Ford Exhaust Gas Valve Product Photo 2 of 2
F55Y-9D475-A Ford Exhaust Gas Valve Illustration 1 of 1
  • Part Description
    VALVE - EXHAUST GAS
  • Replaced By
    XF3Z-9D475-AB
  • 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 Lincoln
    Manufacturer Part NumberF55Y-9D475-A, F55Y9D475A
    Part DescriptionVALVE - EXHAUST GAS
    Item Dimensions6.0 x 3.1 x 4.7 inches
    Item Weight1.30 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerFord
    SKUF55Y-9D475-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
    1998-2002 Lincoln Navigator8 Cyl 5.4L4AT 4R100, 4AT E4OD

  • Customer Questions & Expert Answers

    Q:
    Is this the correct part for the attached VIN?
    A:
    You can Select Your Vehicle to check if F55Y-9D475-A fits your vehicle.
    Posted and answered by Ford Parts Specialist Matthew
    Q:
    How can checks be performed on the EGR Valve and EGR control system for the 2001 Ford Expedition? Posted by Bedford W.
    A:
    The EGR valve is controlled by an EVR (EGR Vacuum Regulator) and the PCM. Its operation can be tested using a vacuum pump. The EGR control system relies on sensors like the ECT (Engine Coolant Temperature), TPS (Throttle Position Sensor), MAF (Mass Airflow Sensor), and TCC (Torque Converter Clutch) to determine the correct ON time for the EGR. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist Don / Sep 26, 2025
    Q:
    What are the key components involved in the EGR system, and how can the EGR Valve's functionality be verified for the 1998 Ford Explorer? Posted by Paulo G.
    A:
    Key components include the EGR valve, EGR vacuum regulator (EVR), and the PCM. The EGR valve's functionality can be verified through vacuum tests, diaphragm movement checks, and cleaning of ports. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist Jack / May 02, 2024

Genuine Ford Part F55Y-9D475-A, the Right Choice

To ensure reliability, purchase part # F55Y-9D475-A Exhaust Gas Valve. It is also called EGR 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 Navigator models.

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