Kooks Headers Oxygen Sensor Harness Extension Kit

2015–2020 Dodge Challenger / 2015–2020 Dodge Charger / 2018–2020 Jeep Grand Cherokee 6.2L HEMI

Part #: CAS-104322

Overview

The Kooks Headers Oxygen Sensor Harness Extension Kit is expertly designed to support high-performance header installations on select Dodge and Jeep models equipped with the 6.2L HEMI engine. This kit provides precision-engineered oxygen sensor extensions that ensure proper sensor placement and connectivity when upgrading to Kooks aftermarket headers. Ideal for enthusiasts and professional installers, these harness extensions maintain factory sensor signal integrity, preserving accurate engine management and optimal vehicle performance.

Whether replacing damaged or lost oxygen sensor harnesses or upgrading your exhaust system, this kit offers a reliable, plug-and-play solution that complements Kooks header systems perfectly. Crafted with durability and fitment precision in mind, these extensions help maintain the performance and emissions control of your vehicle after header installation.

Key Features

Designed specifically for compatibility and durability, the Kooks Oxygen Sensor Harness Extension Kit includes:

• Direct fit for 2015–2020 Dodge Challenger and Charger SRT Hellcat, Demon, Redeye, Widebody, Super Stock models
• Compatible with 2018–2020 Jeep Grand Cherokee Trackhawk
• Two 6-inch front extension harnesses featuring 8-pin connectors for front oxygen sensors
• Two 18-inch rear extension harnesses with 4-pin connectors for rear oxygen sensors
• Constructed to withstand high temperatures and harsh under-hood conditions
• Maintains factory sensor signal accuracy for precise engine tuning and emissions control
• Included in Kooks header kits where oxygen sensor extensions are required
• Perfect replacement for damaged or lost oxygen sensor harnesses
• Handcrafted in the USA with strict quality control standards
• Suitable for both street and race applications

Construction & Design

Kooks Headers builds these oxygen sensor extensions using premium materials engineered to endure the demanding environment of high-performance exhaust systems. The harnesses feature heat-resistant wiring and corrosion-resistant connectors designed to resist vibration and thermal stress. Each extension is manufactured to match the exact specifications of the original equipment harnesses, ensuring a secure, reliable connection that supports long-term durability and consistent sensor performance.

Handcrafted in the USA, these extensions reflect Kooks’ legacy of quality and precision, backed by over 50 years of expertise in performance exhaust manufacturing. This craftsmanship guarantees that your oxygen sensors function flawlessly, preserving engine efficiency and emissions compliance.

Installation & Fitment

Installation of the Kooks Oxygen Sensor Harness Extension Kit is straightforward and designed for seamless integration with Kooks header systems on the specified vehicles. These extensions replace factory oxygen sensor harnesses that may be too short or damaged after header installation, requiring no modifications to the vehicle’s wiring or sensors. The plug-and-play design ensures proper sensor placement and function, making it an ideal upgrade or replacement solution.

Professional installation is recommended to ensure optimal fitment and sensor operation, preserving the accuracy of your vehicle’s engine management system.

What's Included

• 2 x 6-inch front oxygen sensor extension harnesses (8-pin connectors)
• 2 x 18-inch rear oxygen sensor extension harnesses (4-pin connectors)

Ideal For

• Owners of 2015–2020 Dodge Challenger SRT Hellcat, Demon, Redeye, Widebody, and Super Stock models upgrading to Kooks headers
• Owners of 2015–2020 Dodge Charger SRT Hellcat and Widebody models requiring reliable oxygen sensor extensions
• Owners of 2018–2020 Jeep Grand Cherokee Trackhawk seeking proper sensor harness length after header installation
• Performance tuners and racers who need to maintain sensor accuracy and engine management after exhaust modifications
• Anyone needing replacement oxygen sensor harness extensions due to damage or loss