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Mercury F5AZ-4204-A Differential Case

1990-1998 Mercury F5AZ4204A

Customer Questions & Expert Answers (4)
F5AZ-4204-A Ford Differential Case Illustration 1 of 1
F5AZ-4204-A Ford Differential Case Illustration 1 of 1
  • Part Description
    Case - Differential
  • Replaced By
    XW4Z-4204-AA
  • Manufacturer
    Ford
Make sure this part fits
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  • Specifications
  • Fitment
  • Q&A

  • Related Parts

    Shop for related parts for your vehicle

  • Product Specifications

    BrandGenuine Mercury
    Manufacturer Part NumberF5AZ-4204-A, F5AZ4204A
    Part DescriptionCase - Differential
    Item Dimensions9.1 x 7.9 x 8.0 inches
    Item Weight11.30 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerFord
    SKUF5AZ-4204-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
    1990-1997 Mercury Cougar6 Cyl 3.8L, 8 Cyl 4.6L, 8 Cyl 5.0L4AT, 4AT 4R70W, 4AT AOD, 4AT AODE, 5MT
    1990-1998 Mercury Grand Marquis8 Cyl 4.6L, 8 Cyl 5.0L4AT, 4AT 4R70W, 4AT AOD, 4AT AODE

  • Customer Questions & Expert Answers

    Q:
    Is the the correct part for the attached VIN? Posted by FordPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if F5AZ-4204-A fits your vehicle.
    Posted by FordPartsGiant Specialist
    Installation and Repair Tips
    Q:
    What should be done after dealing with the front mount components and the Differential for the 1990 Mercury Cougar? Posted by Customer
    A:
    Install the rear mount to the housing cover. Install the bolts and nuts retaining the rear mount-to-cross member.
    Posted by FordPartsGiant Specialist
    Q:
    How should you position the carrier for installation of the Differential in the 1990 Ford Thunderbird? Posted by Customer
    A:
    Position the carrier on a jack and partially raise it to align the left half shaft into the differential side gear. Note: Be careful not to damage the differential pilot bearing and oil seal.
    Posted by FordPartsGiant Specialist
    See Complete Installation and Repair Tips
    Q:
    Is this for a 28 spline ford 8.8? And is this a LSD or open diff carrier? Thank you Posted by Customer: 1993 Ford Mustang
    A:
    Part number provided is for an 8.8 conventional diff. The one for an 8.8 locker is F5AZ-4204-B
    Posted by FordPartsGiant Specialist 10/6/2025

Genuine Ford Part F5AZ-4204-A, the Right Choice

To ensure reliability, purchase part # F5AZ-4204-A Differential Case. It is also called Differential. 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 Mercury Cougar, Grand Marquis models.

FordPartsGiant.com is a leading supplier of genuine components and accessories such as F5AZ4204A Differential Case. Looking to purchase quality low-cost OEM Ford parts? You have just found the right place. For detailed Mercury parts information, click here.

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