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GM 12656543 Oxygen Sensor

2011-2017 GM

Customer Questions & Expert Answers (2)
12656543 GM Oxygen Sensor Illustration 1 of 1
  • Part Description
    Sensor, Computer Control Sensor
  • Replaces
    12646200, 12639693
  • Manufacturer
    General Motors
Make sure this part fits
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number12656543
    Part DescriptionOxygen Sensor; Sensor, Computer Control Sensor
    Item Dimensions8.4 x 3.2 x 3.0 inches
    Item Weight0.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12646200, 12639693
    ManufacturerGeneral Motors
    SKU12656543
    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
    2011-2015 Buick Allure4 Cyl 2.4LCX 4 DOOR SEDAN, CXL 4 DOOR SEDAN
    2011-2016 Buick LaCrosse4 Cyl 2.4LCX 4 DOOR SEDAN, CXL 4 DOOR SEDAN
    2011-2017 Buick Regal4 Cyl 2.4LCX 4 DOOR SEDAN, CXL 4 DOOR SEDAN
    2014 Chevrolet Impala4 Cyl 2.4LLS 4 DOOR NOTCHBACK, LT 4 DOOR NOTCHBACK
    2013-2014 Chevrolet Malibu4 Cyl 2.4LLT 4 DOOR NOTCHBACK
  • 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 12656543 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    Where can the Oxygen Sensors be found in 2.5L engines for the 2013 Chevrolet Malibu? Posted by Heung R.
    A:
    In 2.5L engines, the upstream sensor is in the exhaust manifold, and the downstream sensor is located below the catalytic converter. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Raul / Apr 22, 2023

Genuine GM Part 12656543, the Right Choice

To ensure reliability, purchase GM part # 12656543 Oxygen Sensor. It is sometimes referred to as GM Oxygen Sensor. 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, LaCrosse, Regal models. It fits Chevrolet Impala, Malibu.

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