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Jeep 4781071AC Crankshaft

2009-2010 Jeep Wrangler 4781071AC

Customer Questions & Expert Answers (3)
4781071AC Mopar Crankshaft Illustration 1 of 1
  • Replaced By
    4781507AD
  • Manufacturer
    Mopar
Make sure this part fits
$1813.65 MSRP: $2690.00
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  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Jeep
    Manufacturer Part Number4781071AC
    Part DescriptionCrankshaft
    Item Dimensions21.9 x 8.3 x 7.5 inches
    Item Weight37.10 Pounds
    ConditionNew
    ManufacturerMopar
    SKU4781071AC
    WarrantyThis genuine Mopar part is guaranteed by Mopar's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2009-2010 Jeep Wrangler6 Cyl 3.8LRubicon, Sahara, Unlimited Rubicon, Unlimited Sahara 2WD, Unlimited Sahara 4WD, Unlimited Sport 2WD, Unlimited Sport 4WD, Unlimited X 2WD, Unlimited X 4WD, Unlimited X RHD 4WD, X, X RHD
  • Customer Questions & Expert Answers

    Q:
    Is this part guaranteed to fit my truck?
    A:
    You can Select Your Vehicle to check if 4781071AC fits your vehicle.
    Posted and answered by Mopar Parts Specialist Reggie
    Q:
    How can you test the condition of the journals and Crankshaft for the 2009 Dodge Grand Caravan? Posted by Tunde D.
    A:
    Rub a penny across each journal several times; if copper rubs off and embeds in the crankshaft, the journals should be reground, indicating roughness. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Mopar Parts Specialist Joel / Dec 16, 2025
    Q:
    What should be done if the oil clearance for the Crankshaft is not acceptable for the 2010 Jeep Wrangler? Posted by Vaeinoe H.
    A:
    If the clearance is not acceptable, verify cleanliness and consider using different bearing inserts if necessary. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Mopar Parts Specialist Jay / Mar 27, 2025

Genuine Mopar Part 4781071AC, the Right Choice

To ensure reliability, purchase Mopar part # 4781071AC Crankshaft. It is sometimes referred to as Crankshaft. The OEM parts should be used when the Mopar owners want to maximize their driving experience. The high-tech factories that produce these parts utilize sophisticated technology specifically designed to meet stringent factory requirements. Additionally, they are thoroughly tested and can thus be used with reliability by Mopar owners. This part fits specific Jeep Wrangler models.

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