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Buick 19178938 Oxygen Sensor

1993 Buick Lesabre

Customer Questions & Expert Answers (3)
19178938 GM Oxygen Sensor Product Photo 1 of 2
  • Part Description
    Sensor, Computer Control Sensor
  • Replaces
    25165314, 25161152, 25312185
  • Manufacturer
    General Motors
Make sure this part fits
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Buick
    Manufacturer Part Number19178938
    Part DescriptionOxygen Sensor; Sensor, Computer Control Sensor
    Item Dimensions7.9 x 2.1 x 2.4 inches
    Item Weight0.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces25165314, 25161152, 25312185
    ManufacturerGeneral Motors
    SKU19178938
    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
    1993 Buick Lesabre6 Cyl 3.8LCUSTOM, LIMITED
  • 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 19178938 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What happens to the Oxygen Sensor below its normal operating temperature for the 1995 Chevrolet Astro? Posted by Wenda S.
    A:
    The sensor does not produce voltage below its normal operating temperature of about 600-degrees F (360-degrees C), causing the PCM to operate in open loop mode during warm-up. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jose / Apr 15, 2022
    Q:
    What conditions are necessary for Oxygen Sensors to operate effectively, and what happens if they are below the required temperature during warm-up for the 1995 Chevrolet K1500? Posted by Abram B.
    A:
    Oxygen sensors require an operating temperature of around 600 degrees F. Below this temperature during warm-up, the ECM/PCM operates in open-loop mode and doesn't use the sensor's feedback. Heating elements in the sensors help reach operating temperature quickly. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Julian / May 30, 2023

Genuine GM Part 19178938, the Right Choice

To ensure reliability, purchase GM part # 19178938 Oxygen Sensor. It is sometimes referred to as Buick 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 Lesabre models.

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