Front O2 Oxygen Sensor Extension Cable for 1999-2002 GM Silverado GMC Sierra 1500

$12.99 - $15.99
(1 review) Write a Review

When you install most aftermarket headers, it moves the oxygen sensor bungs towards the rear of the car, farther from the factory harness, so extensions are required. These extensions make the installation hassle free by not having to cut and splice the factory wiring. It also makes removing aftermarket headers much easier.

  • Includes (1) 12" or 24" FRONT O2 extension cable. Please choose from the variations
  • Uses the same Factory Delphi/Packard connectors, terminals and seals as the OEM wiring harness
  • High Quality, Heavy Duty Construction
  • Made with automotive grade materials
  • Hassle free installation without having to cut/splice into your factory wiring harness
  • Retain a clean factory appearance
  • Assembled in the USA
  • Oxygen Sensor Location: Front/Primary/Upstream


  • This is the Black Flat 4-pin plug. Please make sure it's compatible with your vehicle

Compatible with:

  • 1999 - 2002 Chevrolet Silverado 1500 4.3L 4.8L 5.3L (Front/Primary/Upstream)
  • 2000 - 2002 Chevrolet Tahoe 4.8L 5.3L (Front/Primary/Upstream)
  • 1999 - 2000 Cadillac Escalade 5.7L (Front/Primary/Upstream)
  • 1999 - 2002 GMC Sierra 1500 4.3L 4.8L 5.3L (Front/Primary/Upstream)
  • 2000 - 2002 GMC Yukon 4.3L 4.8L 5.3L (Front/Primary/Upstream)
  • 2000 - 2002 GMC Yukon XL 1500 5.3L (Front/Primary/Upstream)

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  • 5

    Posted by Dustin on 22nd Aug 2017

    The o2 extension was exactly what I needed and way cheaper then any local auto parts store. Fast shipping and plug and play. That is again. I'll be buying all my wiring need a here in the future