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Ford 5L2Z-6303-AA Crankshaft Assembly

1998-2011 Ford 5L2Z6303AA

Customer Questions & Expert Answers (11)
Ford 5L2Z-6303-AA Crankshaft Assembly
  • Part Description
    Crankshaft Assy
  • Base No.
    6303
  • Replaces
    1L2Z-6303-BA, F87Z-6303-BA
  • Manufacturer
    Ford
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  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine Ford
    Base No.6303
    Manufacturer Part Number5L2Z-6303-AA, 5L2Z6303AA
    Part DescriptionCrankshaft Assy
    Other NamesCrankshaft
    Item Dimensions24.5 x 21.2 x 11.6 inches
    Item Weight54.60 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces1L2Z-6303-BA, F87Z-6303-BA
    ManufacturerFord
    SKU5L2Z-6303-AA
    Shipping & ReturnShipping Policy Return Policy
    Warning: California’s Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2002-2010, 1998 Ford Explorer6 Cyl 4.0L, 6 Cyl 4.0L SOHC EFI4AT 4R70W, 5-Speed Automatic Transmission 5R55S, 5-Speed Automatic Transmission 5R55W, 5-Speed Manual Transmission (M5R4), 5AT 5R55E, 5MT, 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Right Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
    2001-2003 Ford Explorer Sport6 Cyl 4.0L SOHC EFI5-Speed Automatic Transmission - 5R44E/5R55E, 5-Speed Manual Transmission - R1HD, Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
    2007-2010, 2001-2005 Ford Explorer Sport Trac6 Cyl 4.0L SOHC EFI5-Speed Automatic Transmission - 5R44E/5R55E, 5-Speed Automatic Transmission 5R55S, 5-Speed Manual Transmission - R1HD, 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive), Two-Wheel Drive
    2005-2010 Ford Mustang6 Cyl 4.0L SOHC EFI5-Speed Automatic Transmission 5R55S, 5-Speed Manual Transmission T5OD, 5-Speed Manual Transmission TR3650, 6-Speed Manual Transmission (T56), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
    2001-2011, 1998 Ford Ranger6 Cyl 4.0L, 6 Cyl 4.0L SOHC EFI4AT 4R44E, 5-Speed Automatic Transmission - 5R44E/5R55E, 5-Speed Manual Transmission - R1HD, 5-Speed Manual Transmission M5R1, 5AT 5R44E, 5AT 5R55E, 5MT, Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
    2002-2010, 1998 Mercury Mountaineer6 Cyl 4.0L, 6 Cyl 4.0L SOHC EFI4AT 4R70W, 5-Speed Automatic Transmission 5R55S, 5-Speed Automatic Transmission 5R55W, 5-Speed Manual Transmission (M5R4), 5AT 5R55E, 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Right Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
  • Customer Questions & Expert Answers

    Q:
    Will these fit my car and if not which part will? Thank you. Posted by FordPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 5L2Z-6303-AA fits your vehicle.
    Posted by FordPartsGiant Specialist
    Q:
    How can the condition of the journals be assessed for the 2001 Ford Ranger? Posted by Customer
    A:
    Rub a penny across each journal several times. If copper rubs off and is embedded in the crankshaft, the journals should be reground. If a journal picks up copper from the penny, it indicates that it is too rough and must be reground.
    Posted by FordPartsGiant Specialist
    Q:
    How do you measure the crankshaft endplay using a dial indicator for the 2008 Ford Ranger? Posted by Customer
    A:
    Push the crankshaft all the way to the rear and zero the dial indicator. Then, pry the crankshaft to the front as far as possible and check the reading on the dial indicator. The distance it moves is the endplay. If it's greater than the limit, check the crankshaft thrust surfaces for wear. If no wear is evident, new main bearings should correct the endplay.
    Posted by FordPartsGiant Specialist
    Q:
    How can you determine if a journal is too rough for the 2007 Ford Ranger? Posted by Customer
    A:
    Rub a penny across each journal several times. If a journal picks up copper from the penny, it's too rough and must be reground.
    Posted by FordPartsGiant Specialist
    Q:
    How do you check the endplay of the crankshaft for the 2008 Ford Ranger? Posted by Customer
    A:
    Mount a dial indicator with the stem in line with the crankshaft and just touching one of the crank throws. Push the crankshaft all the way to the rear and zero the dial indicator. Next, pry the crankshaft to the front as far as possible and check the reading on the dial indicator. The distance that it moves is the endplay.
    Posted by FordPartsGiant Specialist
    Q:
    What should be done with the bolts for the 2003 Ford Ranger? Posted by Customer
    A:
    Install the bolts and tighten all except the thrust bearing cap bolts to the specified torque, working from the center out and approaching the final torque in three steps.
    Posted by FordPartsGiant Specialist
    See expert answers on similar Crankshaft
    Q:
    What should be done if the crankshaft does not rotate smoothly for the 2014 Ford Mustang? Posted by Customer
    A:
    Rotate the crankshaft by hand to check for binding; it should rotate with a running torque of 50 in-lbs or less.
    Posted by FordPartsGiant Specialist
    See expert answers on similar Crankshaft
    Q:
    How should the Plastigage material be removed for the 2006 Ford Ranger? Posted by Customer
    A:
    Carefully scrape all traces of the Plastigage material off the main bearing journals or the bearing faces using your fingernail or the edge of a credit card, avoiding nicks or scratches.
    Posted by FordPartsGiant Specialist
    Q:
    How should the main bearing caps be installed for the 2001 Ford Explorer Sport Trac? Posted by Customer
    A:
    Clean the faces of the bearings in the caps and install the caps in their respective positions with the arrows pointing toward the front of the engine.
    Posted by FordPartsGiant Specialist
    Q:
    How should the oil seal journals be checked for the 2001 Ford Explorer Sport Trac? Posted by Customer
    A:
    Check the oil seal journals at each end of the crankshaft for wear and damage. If the seal has worn a groove in the journal, or if it's nicked or scratched, the new seal may leak when the engine is reassembled. An automotive machine shop may be able to repair the journal by pressing on a thin sleeve. If repair isn't feasible, a new or different crankshaft should be installed.
    Posted by FordPartsGiant Specialist
    Q:
    How do you check the crankshaft end play with a dial indicator for the 2002 Ford Explorer Sport Trac? Posted by Customer
    A:
    Mount a dial indicator with the stem in line with the crankshaft and just touching the end of the crankshaft. Push the crankshaft all the way to the rear and zero the dial indicator. Next, pry the crankshaft to the front as far as possible and check the reading on the dial indicator. The distance that it moves is the end play. If it's greater than the limit, check the crankshaft thrust surfaces for wear. If no wear is evident, new main bearings should correct the end play.
    Posted by FordPartsGiant Specialist
    See expert answers on similar Crankshaft
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

Genuine Ford Part 5L2Z-6303-AA, the Right Choice

To ensure reliability, purchase Ford part # 5L2Z-6303-AA Crankshaft Assembly. It is sometimes referred to as Ford Crankshaft. In terms of quality and longevity, OEM parts are top-tier. This is because they are made according to Ford's demanding factory specifications and go through strict quality control. This part fits specific Ford Explorer, Mustang, Ranger models. It fits Mercury Mountaineer.

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