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 Silverado 1500)Find parts that fit my vehicle
Item S194717
Our Price
$39.99 each
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features
- 15" Rear Oxygen Sensor 02 Harness for C7 Z06 Corvette, Camaro LT1, LT4, LT5, and Gen V Silverado
- Replaces OEM Part #12655678
- Includes a pair of new oxygen sensor extension harnesses for rear O2 sensors on C7 models
- Harnesses are 15" in length
- Compatible with other Gen 5 GM applications such as 2014 and newer Camaro, Silverado, Suburban, and other trucks
- Required when aftermarket headers move oxygen sensor bungs towards the rear, farther from the factory harness
- Extensions enable installation without cutting or splicing factory wiring for hassle-free setup
- Fits 2014-2018 Silverado 1500 models
Description
Oxygen Sensor Extension. The O2 Oxygen Sensor Extension Wire Harness; Downstream is designed to connect rear oxygen sensors on C7 Corvettes and other Gen 5 GM vehicles. It provides additional length when aftermarket headers reposition sensor bungs farther from the factory harness, ensuring accurate sensor data and preventing wiring damage.
Construction and Appearance. These harness extensions use durable, automotive-grade wiring and secure connectors. The 15-inch length suits repositioned sensor locations, and the components have a protective black textured outer layer that resists heat and corrosion.
Installation. Installation is straightforward and requires no drilling, cutting, or splicing. The extensions plug directly into the existing sensor harness, providing a clean and reliable connection.
Application. Designed to fit Chevrolet Silverado 1500 models from 2014 through 2018, these oxygen sensor extensions accommodate aftermarket header installations that alter sensor placement.
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
Tech Specs
Tech Guides:
4.7
Customer Reviews (3)
Questions & Answers
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