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Mercury 4L3Z-6303-AA Crankshaft Assembly

2004-2007 Mercury Monterey 4L3Z6303AA

Customer Questions & Expert Answers (2)
4L3Z-6303-AA Ford Crankshaft Assembly Illustration 1 of 1
4L3Z-6303-AA Ford Crankshaft Assembly Illustration 1 of 1
  • Part Description
    Crankshaft Assy
  • Replaced By
    4L3Z-6303-ARM
  • 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
    Manufacturer Part Number4L3Z-6303-AA, 4L3Z6303AA
    Part DescriptionCrankshaft Assy
    Item Dimensions6.3 x 6.2 x 24.4 inches
    Item Weight42.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerFord
    SKU4L3Z-6303-AA
    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
    2004-2007 Mercury Monterey6 Cyl 4.2L OHV EFI4AT AX4N, Front-Wheel Drive (Left Hand Drive), Left Hand Drive

  • Customer Questions & Expert Answers

    Q:
    Is this the correct part for the attached VIN?
    A:
    You can Select Your Vehicle to check if 4L3Z-6303-AA fits your vehicle.
    Posted and answered by Ford Parts Specialist Matthew
    Q:
    What is the last step in the process for the 2006 Ford F-150 involving the Crankshaft? Posted by Verified Customer
    A:
    Install the new rear main oil seal. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist Don / Apr 09, 2026

Genuine Ford Part 4L3Z-6303-AA, the Right Choice

To ensure reliability, purchase part # 4L3Z-6303-AA 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 Monterey models.

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