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Make sure this part fits

Mercury F6AZ-6303-BB Crankshaft Assembly

1996 Mercury Grand Marquis F6AZ6303BB

Customer Questions & Expert Answers (3)
F6AZ-6303-BB Ford Crankshaft Assembly Illustration 1 of 1
F6AZ-6303-BB Ford Crankshaft Assembly Illustration 1 of 1
  • Part Description
    Crankshaft Assy
  • Base No.
    6303
  • 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 Mercury
    Base No.6303
    Manufacturer Part NumberF6AZ-6303-BB, F6AZ6303BB
    Part DescriptionCrankshaft Assy
    Other NamesCrankshaft
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerFord
    SKUF6AZ-6303-BB
    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
    1996 Mercury Grand Marquis8 Cyl 4.6L4AT 4R70W

  • Customer Questions & Expert Answers

    Q:
    Is this the correct part for the attached VIN?
    A:
    You can Select Your Vehicle to check if F6AZ-6303-BB fits your vehicle.
    Posted and answered by Ford Parts Specialist Matthew
    Q:
    What should be checked on the main and connecting rod bearing journals of the Crankshaft for the 1997 Ford Expedition? Posted by Trinidad S.
    A:
    Check the main and connecting rod bearing journals for uneven wear, scoring, pits, and cracks. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist Don / Dec 30, 2025
    Q:
    What should be done after tightening the main bearing caps for the Crankshaft in the 2004 Ford F-150? Posted by Veronyka H.
    A:
    Recheck the crankshaft endplay with a feeler gauge or dial indicator, ensuring it is correct if the thrust faces are not worn and new bearings are installed. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist Bastien / Dec 21, 2022

Genuine Ford Part F6AZ-6303-BB, the Right Choice

To ensure reliability, purchase part # F6AZ-6303-BB Crankshaft Assembly. It is also called Crankshaft. 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 Grand Marquis models.

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