Make sure this part fits

GMC 12609456 Oxygen Sensor

2008-2013 GMC Sierra

Customer Questions & Expert Answers (3)
12609456 GM Oxygen Sensor Product Photo 1 of 1
  • Part Description
    Sensor, Computer Control Sensor
  • Manufacturer
    General Motors
Make sure this part fits
$53.73 MSRP: $108.66
You Save: $54.93 (51%)
Ships in 1-2 Business Days
1
ADD TO CART
  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GMC
    Manufacturer Part Number12609456
    Part DescriptionOxygen Sensor; Sensor, Computer Control Sensor
    Item Dimensions8.4 x 3.3 x 3.3 inches
    Item Weight0.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12609456
    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
    2008-2013 GMC Sierra6 Cyl 4.3LCREW CAB 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON
  • 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 12609456 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What is the function of an Oxygen Sensor, and why is it crucial in the 2012 Chevrolet Silverado engine management system? Posted by Zuleika P.
    A:
    An oxygen sensor is a galvanic battery that produces a small voltage output in response to the amount of oxygen in the exhaust gases. This voltage signal is crucial for the feedback loop between the oxygen sensor and the Powertrain Control Module (PCM) to maintain the perfect air/fuel ratio of 14.7:1 that the catalyst needs for optimal operation. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Bob / May 10, 2026
    Q:
    How many Oxygen Sensors do the covered 2010 GMC Sierra have, and why are they heated? Posted by Ekramul K.
    A:
    All models covered by this manual have four heated oxygen sensors: one upstream sensor per cylinder bank and one downstream sensor per cylinder bank. The sensors are heated to speed up the warm-up time during which the sensors are unable to produce an accurate voltage signal. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Nicholas / Jul 09, 2026

Genuine GM Part 12609456, the Right Choice

To ensure reliability, purchase GM part # 12609456 Oxygen Sensor. It is sometimes referred to as GMC 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 GMC Sierra models.

GMPartsGiant.com is a leading supplier of genuine GM parts and accessories such as GM 12609456 Oxygen Sensor. You're certainly in the right place if you're searching for the great cost-effective OEM GM parts. Look no further than our vast inventory of genuine GM parts offered at unbeatable online prices, all of which are backed by the manufacturer's warranty. Not to forget, our hassle-free return policy and quick delivery service ensure a smooth shopping experience for you. For detailed GMC parts information, click here.
Find low prices on genuine OE parts from GM dealerships with fast delivery and dedicated service at GMPartsGiant.com.