Installation Time
(approx) 15 Minutes
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
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O2 Oxygen Sensor Extension Wire Harness; Downstream (14-18 Sierra 1500)Find parts that fit my vehicle
Item S576702
Our Price
$39.99 each
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$2.00 Available in AT Cash Rewards.
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features
- 15" Rear Oxygen Sensor O2 Harness Compatible With C7 Z06 Corvette, Camaro LT1, LT4, LT5 Gen V Silverado
- Replaces OEM Part 12655678
- Pair of New Oxygen Sensor Extensions for Rear O2
- Harnesses Are 15" Long
- Fits Other Gen 5 GM Applications Such As 2014+ Camaro, Silverado, Suburban, and Other Trucks
- Designed for Downstream Sensor
- Fits 14-18 Sierra 1500
Description
Oxygen Sensor Extension. The O2 Oxygen Sensor Extension Wire Harness for the downstream sensor is designed to extend the factory rear oxygen sensor wiring, allowing for seamless installation when aftermarket headers reposition the oxygen sensor bung farther from the original harness. It ensures accurate sensor readings and maintains emission control system functionality. This product eliminates the need for wire cutting and splicing during modifications.
Construction and Appearance. Constructed with durable, heat-resistant materials, the harness features professional-grade wiring and connectors to ensure long-lasting performance and reliable electrical connections. The finish is designed to withstand harsh automotive environments while maintaining flexibility and durability, typically with black insulation for a clean appearance.
Installation. Installation is straightforward with no drilling required. The harness connects directly to existing sensor plugs, providing a hassle-free upgrade for both professional and enthusiast mechanics.
Application. Fits 14-18 Sierra 1500 with no exclusions or special notes for this model and year range.
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) O2 Oxygen Sensor Extension Wire Harness
4.7
Customer Reviews (3)
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