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Buick 12661873 Crankshaft

2012-2024 Buick

Customer Questions & Expert Answers (3)
12661873 GM Crankshaft Illustration 1 of 1
  • Part Description
    Crankshaft, Engine
  • Replaces
    12630898
  • Manufacturer
    General Motors
Make sure this part fits
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Buick
    Manufacturer Part Number12661873
    Part DescriptionCrankshaft; Crankshaft, Engine
    Item Dimensions25.2 x 8.7 x 6.6 inches
    Item Weight62.10 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12630898
    ManufacturerGeneral Motors
    SKU12661873
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2012-2015 Buick Allure6 Cyl 3.6LCX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, CXS 4 DOOR SEDAN
    2018-2024 Buick Enclave6 Cyl 3.6LBASE EXTENDED 4 DOOR SUV, PREMIUM 1 EXTENDED 4 DOOR SUV, PREMIUM 2 EXTENDED 4 DOOR SUV
    2012-2016 Buick LaCrosse6 Cyl 3.6LCX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, CXS 4 DOOR SEDAN
  • Customer Questions & Expert Answers

    Q:
    I'm wondering if this is complete and correct part for my vehicle.
    A:
    You can Select Your Vehicle to check if 12661873 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    How do you check the main bearing oil clearance for the Crankshaft before permanent installation in the 2015 Chevrolet Camaro? Posted by Oscar W.
    A:
    Check the oil holes in the crankshaft, then lay the crankshaft in position. Before permanent installation, check the main bearing oil clearance using Plastigage, ensuring it is slightly shorter than the journal width. Place Plastigage on each journal, install the caps without disturbing it, and tighten the bolts in sequence. After removing the caps, compare the crushed Plastigage width to the scale to determine clearance. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Syed / Dec 30, 2023
    Q:
    What should be done after lifting the Crankshaft out of the engine for the 2013 Chevrolet Equinox? Posted by Kaitlyn N.
    A:
    After lifting the crankshaft out, ensure that the main bearing caps are reinstalled in the correct order with the bearing inserts in place. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Nicholas / Jun 12, 2025

Genuine GM Part 12661873, the Right Choice

To ensure reliability, purchase GM part # 12661873 Crankshaft. It is sometimes referred to as Buick Crankshaft. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Buick Allure, Enclave, LaCrosse models.

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