Free Shipping On Orders Over $49. Details

Talk to a Mustang Expert
1-888-332-7930
Mon - Sun, 8:30 AM EST - 11:00 PM EST
Win 1 of 2 $15,000 Mustang Builds! Enter To Win!

Kooks O2 Sensor Extension Harness (11-14 GT500)

Market Price $30.99 You Save 14% ($4.47)
Starting At

$26.52 (each)

FREE Shipping on orders over $49
  • Item 399824
  • MPN# CAS-109203

Local Install Shops

Quoted installation from $125

View 3 Shops

near 19355 (change)

Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.

Will this fit your Mustang?

Ship to: ASHBURN - 20146
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

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

    Features & Details

    • Helps Regain Lost Power
    • Extends Front or Rear O2 Sensor Harnesses
    • Reduces Harmful Emissions and Fuel Consumption
    • Durable Stainless Steel Construction
    • Dyno-Tested and Race-Tested
    • An Ideal Fit for Modified Exhaust Systems
    • A Direct OEM Replacement
    • Sold Individually
    • Fits All 2011-2014 Ford Mustang GT500s
    Regains Lost Power. A Kooks Oxygen Sensor Extension Harness will help you regain consistent superior performance. This is crucial because a bad oxygen extension harness may result in lousy fuel economy and poor performance and your vehicle may fail the emissions testing. A durable O2 extension harness will replace your worn-out stock harnesses and give you the power that your Mustang needs.

    Superior Assembly. The Kooks O2 Sensor Extension Harness ensures a perfect fit for your stock oxygen sensor. It is crafted from premium-quality stainless steel material and unmatched craftsmanship to ensure that it's a high-quality direct replacement for your failed or worn-out OEM oxygen sensor extension harnesses.

    Simple Installation. These Kooks O2 Sensor Extension Harnesses feature OEM stock connectors that offer an easy and simple plug-and-play installation. With basic mechanical expertise, you can easily bridge the gap between the long tube headers and your O2 sensors using simple and readily available household tools.

    Warranty. The Kooks O2 Sensor Extension Harnesses have a limited lifetime warranty from the manufacturer. This warranty covers against any defects in the manufacturing process and material and structural faults, and it is not transferable.

    Application. Designing of the Kooks O2 Sensor Extension Harness ensures that it's a direct replacement for all Ford Mustang GT500 models released between 2011 and 2014. Sold individually.

    Fitment: 2011 2012 2013 2014 Details

    What's in the Box
    • (1) Oxygen Sensor Extensions
    Installation Info
    Tech Specs
    Will it fit my Mustang?

    Customer Photos

    You Might Also Like

    Q & A

    No questions about this product yet.

    Ask the First Question

    More Products You Might Like

    Reviews

    Related Mustang Categories