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GM 12562866 Sensor

2001 GM

Customer Questions & Expert Answers (3)
12562866 GM Sensor Product Photo 1 of 4
  • Part Description
    Sensor, Computer Control Sensor
  • Manufacturer
    General Motors
Make sure this part fits
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number12562866
    Part DescriptionSensor; Sensor, Computer Control Sensor
    Item Dimensions8.5 x 3.2 x 3.1 inches
    Item Weight0.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12562866
    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
    2001 Chevrolet Blazer6 Cyl 4.3L2 DOOR, 4 DOOR
    2001 Chevrolet S106 Cyl 4.3LCREW CAB, PICKUP, PICKUP EXTENDED CAB
    2001 GMC Jimmy6 Cyl 4.3L2 DOOR, 4 DOOR
    2001 GMC Sonoma6 Cyl 4.3L4 DOOR, PICKUP, PICKUP EXTENDED CAB
    2001 Oldsmobile Bravada6 Cyl 4.3LBRAVADA
  • 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 12562866 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What does the manifold absolute pressure (MAP) sensor do, and how can it be checked for the 2001 Chevrolet Blazer, along with the Oxygen Sensor? Posted by Yusef M.
    A:
    The manifold absolute pressure (MAP) sensor monitors intake manifold pressure changes and varies its voltage output accordingly. To check it, you should check the reference voltage and signal voltage with the ignition on and engine off, and observe voltage changes as the engine's vacuum changes. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Nicholas / Nov 08, 2025
    Q:
    What does the manifold absolute pressure (MAP) sensor do, how can it be checked for the 2001 GMC Sonoma, and how does it relate to the Oxygen Sensor? Posted by Hemant R.
    A:
    The manifold absolute pressure (MAP) sensor monitors intake manifold pressure changes and varies its voltage output accordingly. To check it, you should check the reference voltage and signal voltage with the ignition on and engine off, and observe voltage changes as the engine's vacuum changes. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Fernando / Mar 10, 2025

Genuine GM Part 12562866, the Right Choice

To ensure reliability, purchase GM part # 12562866 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 Chevrolet Blazer, S10 models. It fits GMC Jimmy, Sonoma. It also fits Oldsmobile Bravada.

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