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Cadillac 19209808 Sensor Asm,Heated Oxygen (Position 3)

2002-2007 Cadillac

Customer Questions & Expert Answers (5)
GM 19209808 Sensor Asm,Heated Oxygen (Position 3)
  • Part Description
    SENSOR, Computer Control Sensors
  • Replaces
    12575389, 19256731, 25333812, 12583806, 19210711, 12573168
  • Manufacturer
    General Motors
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  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine Cadillac
    Manufacturer Part Number19209808
    Part DescriptionSENSOR, Computer Control Sensors
    Other NamesOxygen Sensor, Rear Oxygen Sensor
    Item Dimensions8.4 x 3.4 x 3.2 inches
    Item Weight0.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12575389, 19256731, 25333812, 12583806, 19210711, 12573168
    ManufacturerGeneral Motors
    SKU19209808
    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
    2007, 2004-2005 Cadillac CTS8 Cyl 5.7L, 8 Cyl 6.0LV 4 DOOR
    2002-2006 Cadillac Escalade8 Cyl 6.0L1/2 TON, 3/4 TON, EXT 1/2 TON, EXT 3/4 TON, YUKON/DENALI/ESCALADE
  • Customer Questions & Expert Answers

    Q:
    I am wonder if this is complete and correct part for my vehicle. Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 19209808 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    What is an oxygen sensor and how is it used in Chevrolet Avalanche,Silverado,Suburban,Tahoe,GMC Sierra,Yukon,Yukon Denali and Yukon XL's engine management system? Posted by Customer
    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. All vehicles covered have On-Board Diagnostics II (OBD-11) engine management systems, which means they have the ability to monitor the performance of the catalytic converter. All models covered by this manual have four heated oxygen sensors: one upstream sensor per cylinder bank and one downstream sensor per cylinder bank. Special care must be taken whenever a sensor is serviced, as they are extremely delicate and cannot be dropped or handled roughly. The upstream and downstream oxygen sensors are heated to speed up the warm-up time during which the sensors are unable to produce an accurate voltage signal. The circuit for each oxygen sensor heater is controlled by the PCM. To remove the upstream or downstream oxygen sensor, the vehicle must be raised and securely placed on jackstands. The sensor electrical lead must be traced to the connector and disconnected before unscrewing the sensor with an oxygen sensor socket. If the sensor is difficult to loosen, penetrating oil can be sprayed onto the sensor threads and allowed to soak in for a while. When installing the old sensor, anti-seize compound should be applied to the threads to facilitate future removal. If installing a new oxygen sensor, it's not necessary to apply anti-seize compound to the threads as they already have anti-seize compounds on them. The installation process is the reverse of removal, and the sensor must be tightened to the torque specifications.
    Posted by GMPartsGiant Specialist
    Q:
    What is the purpose of the oxygen sensor in the 1997 Chevrolet Express exhaust system? Posted by Customer
    A:
    The oxygen sensor reacts with the oxygen in the exhaust to produce a voltage output that indicates the amount of leftover oxygen in the exhaust.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Oxygen Sensor
    Q:
    What is the purpose of the post-converter oxygen sensor for the 2005 Chevrolet Trailblazer? Posted by Customer
    A:
    The post-converter oxygen sensor is used to monitor the efficiency of the catalytic converter.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Oxygen Sensor
    Q:
    How many oxygen sensors do the covered 2011 GMC Sierra have, and why are they heated? Posted by Customer
    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.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Oxygen Sensor
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

Genuine GM Part 19209808, the Right Choice

To ensure reliability, purchase GM part # 19209808 Sensor Asm,Heated Oxygen (Position 3). It is sometimes referred to as Cadillac 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 Cadillac CTS, Escalade models.

GMPartsGiant.com is a leading supplier of genuine GM parts and accessories such as GM 19209808 Sensor Asm,Heated Oxygen (Position 3). 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 Cadillac parts information, click here.

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