FREE 1 to 3-Day Delivery on Orders $149+ Details

Memorial Day Sale - Up to 50% Off! Shop Now >

Find for your Yukon

O2 Oxygen Sensor; Downstream (2021 V8 Yukon)Find parts that fit my vehicle

Item GY39824
Coupon Added
1 Reviews
Our Price

$49.99

Coupon
Apply 10% Discount
One coupon per order | Details
Military, Medical & First Responders $2.75 Available in AT Cash Rewards.
Confirm Eligibility

CONFIRM THIS FITS YOUR VEHICLE!

Select a different vehicle Help?
Update or Change Vehicle
Add to Cart
Save for later
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    or use

    Shop Owners Save More! Sign up for our dealer program
    Join For FREE
    Loading Indicator

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation

      Features

        _x000D_
      • O2 Oxygen Sensor
        • _x000D_
      • 1-Pc Direct-Fit
        • _x000D_
      • Heated Sensor
        • _x000D_
      • Fast Warm-Up Heater For Better Cold Starts
        • _x000D_
      • Stable Output For Precise Air-Fuel Measurement
        • _x000D_
      • Four-Terminal Male Connector With Oblong Shape
        • _x000D_
      • Narrowband Sensor Type
        • _x000D_
      • Wire Quantity: 4
        • _x000D_
      • Wiring Harness Length: 247 mm
        • _x000D_
      • Thread Size: M18
        • _x000D_
      • Color: Black
        • _x000D_
      • Three-Year Warranty
        • _x000D_
      • Item Located in United States
        • _x000D_
      • Fits 2021 V8 Yukon XL Downstream Left Or Right Sensor B1S2 Or B2S2
        • _x000D_

      Description

      OXYGEN SENSOR FUNCTION. The O2 Oxygen Sensor (Downstream) plays a vital role in monitoring exhaust gases leaving the engine to ensure optimal combustion efficiency and emission control. Installed in the exhaust stream, it delivers accurate data to the vehicle’s engine control unit for adjusting the air-fuel mixture, enhancing performance and reducing harmful emissions.

      _x000D__x000D_

      CONSTRUCTION AND APPEARANCE. Crafted with durable materials using advanced manufacturing processes, this sensor is designed for heat resistance and corrosion protection. It features a compact black finish with a 4-wire heated design that facilitates quick warm-up and reliable sensor output under various operating conditions.

      _x000D__x000D_

      INSTALLATION. Installation is straightforward with no drilling required, as the sensor is a direct-fit replacement part designed to match factory specifications for a precise fit. Basic mechanical skills and standard tools are sufficient for mounting and connecting the sensor.

      _x000D__x000D_

      WARRANTY. This oxygen sensor is backed by a three-year unlimited mileage warranty, ensuring long-lasting quality and peace of mind.

      _x000D__x000D_

      APPLICATION. This sensor is specifically compatible with the 2021 V8 Yukon XL for downstream left or right oxygen sensor positions, identified as Bank 1 Sensor 2 or Bank 2 Sensor 2, ensuring proper fit and function for this vehicle configuration.

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Tech Specs

      1.0

      Customer Reviews (1)

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Yukon

      • 5.3L V8 - 21
      • 6.2L V8 - 21