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

Throtl Throwdown - May 2, 2026 Get Tickets! >

Find Oxygen Sensors for your Mustang

Kooks O2 Extension Harness (15-23 Mustang GT)Find parts that fit my vehicle

Item 431990
Product Image
1 Reviews
Our Price

$37.10

Military, Medical & First Responders $1.86 Available in AM 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

    Frequently Bought Together

      Product Information

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

      Features

      • O2 Extension Harness 8" Front Extension Harness (6-Pin)
      • Oxygen Sensor Extension Harnesses Are Included In Header Kits Where Needed
      • This Part Number Should Only Be Ordered As A Replacement For Damaged Or Lost Oxygen Sensor Extensions
      • Tube Diameter 2.500 In.
      • Fits 15-23 Mustang GT

      Description

      O2 Extension Harness Overview. The O2 Extension Harness is designed to extend the front oxygen sensor wiring on 2015 Mustang models. It ensures proper sensor placement and maintains accurate oxygen readings critical for engine performance and emissions control. This harness is essential for replacing damaged or lost extensions during header installations or repairs.

      Construction and Appearance. Crafted with durable materials engineered to withstand automotive environments, this harness features a 6-pin connector for secure, reliable connections. It is designed to match OEM specifications for fit and functionality, ensuring longevity and optimal performance.

      Installation. Installation is straightforward, typically requiring no drilling or modifications. The harness plugs directly into existing oxygen sensor connectors, making it a simple replacement or upgrade.

      Warranty. The product is backed by a manufacturer warranty to guarantee quality and reliability.

      Application. Specifically designed for 2015 to 2023 Mustang GT models, ensuring exact fitment and compatibility with this vehicle's oxygen sensor system.

      Kooks CAS-105979

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

      Tech Specs

      5.0

      Customer Reviews (1)

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Mustang

      • Bullitt - 19, 20
      • GT - 15, 16, 17, 18, 19, 20, 21, 22, 23
      • Mach 1 - 21, 22, 23