July 4th Sale! Shop Now >

O2 Oxygen Sensor Extension Wire Harness; Upstream (16-19 Silverado 3500 HD)

Item SHS47450
Our Price

$39.99 each

Military, Medical & First Responders $2.00 Available in AT Cash Rewards.
Confirm Eligibility

CONFIRM THIS FITS YOUR VEHICLE!

Select a different vehicle Help?
Update or Change Vehicle
    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

      Product Information

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

      Features

      • Buick Cascada
      • Buick Envision
      • Buick LaCrosse
      • Buick Regal
      • Cadillac ATS
      • Cadillac CT6
      • Cadillac CTS
      • Cadillac Escalade
      • Chevrolet Blazer
      • Chevrolet Camaro
      • Chevrolet Colorado
      • Chevrolet Corvette
      • Chevrolet Express 4500
      • Chevrolet Impala
      • Chevrolet LCF 3500
      • Chevrolet Malibu
      • Chevrolet Malibu Limited
      • Chevrolet Silverado 2500
      • Chevrolet Silverado 3500
      • Chevrolet Suburban
      • Chevrolet Suburban 3500 HD
      • Chevrolet Tahoe
      • GMC Acadia
      • GMC Canyon
      • GMC Sierra 1500 Limited
      • GMC Sierra 2500
      • GMC Sierra 3500
      • GMC Yukon
      • GMC Yukon XL
      • Fits 16-19 Silverado 3500 HD

      Description

      Oxygen Sensor Extension. The O2 Oxygen Sensor Extension Wire Harness; Upstream provides a necessary extension for front oxygen sensors, especially useful when installing aftermarket headers that reposition oxygen sensor bungs further from the factory wiring. This harness ensures a reliable, plug-and-play connection without the need for cutting or splicing factory wires, maintaining sensor signal integrity.

      Construction and Appearance. Constructed with high-quality wire and durable connectors, the harness features a sturdy protective sleeve with a black finish designed to resist heat and environmental damage, ensuring long-lasting performance in demanding automotive engine compartments.

      Installation. Installation is straightforward and user-friendly, requiring no drilling or additional modifications. It simply plugs in-line with the existing factory connector, making it accessible for both professional mechanics and experienced enthusiasts.

      Application. Designed to fit the 2016-2019 Silverado 3500 HD, this extension harness accommodates the repositioned oxygen sensors resulting from header modifications without any exclusions noted for this specific model and year range.

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

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 20 Minutes

      Difficulty Level:

      Simple installation for anyone.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) O2 Oxygen Sensor Extension Wire Harness
      4.7

      Customer Reviews (3)

      Questions & Answers

      No questions about this product yet. Ask the First Question