Kooks / Oxygen Sensor Extensions

Kooks HEMI LX O2 Extension Kit | CAS-105067

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£104.63 VAT included. Shipping calculated for your destination.

Available to Order

Not sure which one? Ask us to confirm fitment first →
Delivery, customs and taxes Know the landed cost before you order

Prices include VAT. Shipping is charged separately and calculated at checkout for your destination. If no shipping option is shown, contact us for a quote before ordering.

Lead times and urgent orders Check timing before you commit

Estimated lead time: 4–6 weeks. Delivery may be faster depending on stock levels. Contact us before ordering if timing matters.

Fitment checked before you order

Send the vehicle, engine and current setup if you want us to confirm the exact application before checkout.

Technical specifications
Specification Details
SKU CAS-105067
Application Chrysler 300 / Dodge Charger, Challenger and Magnum; 5.7L / 6.1L / 6.4L HEMI
Included harnesses Two 6-inch front harnesses; 4-pin; Two 18-inch rear harnesses; 4-pin
Purchase purpose Replacement for damaged or lost extensions; Kooks header kits include required extensions where needed

Replace the O2 extension your exhaust needs

Get your sensor wiring connected again with the correct Kooks replacement extension for Chrysler 300 / Dodge Charger, Challenger and Magnum; 5.7L / 6.1L / 6.4L HEMI. This is a practical replacement when an existing oxygen-sensor extension has been damaged or lost, with the harness lengths and connector details listed below.

SKU: CAS-105067

The correct harness for the job

Two 6-inch front harnesses; 4-pin; Two 18-inch rear harnesses; 4-pin. Match the plug type, sensor position and extension length to the part you are replacing. Front and rear extensions do different jobs, so use the listed contents rather than choosing by vehicle name alone.

Replacement parts for your Kooks exhaust

Kooks header kits include the required oxygen-sensor extensions where needed. This separate listing lets you replace the extension you need when servicing your exhaust.

Vehicle fitment

Years Vehicle / trim Engine Applicable SKU Fitting conditions
2005-2010 Chrysler 300 C SRT8 6.1L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2009-2020 Chrysler 300 C 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2010-2020 Chrysler 300 S 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2012-2014 Chrysler 300 SRT8 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2013-2014 Chrysler 300 C Luxury 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2013 Chrysler 300 SRT8 Core 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2015-2017 Chrysler 300 C Platinum 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2008-2010 Dodge Challenger SRT8 6.1L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2009-2020 Dodge Challenger R/T 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2011-2014 Dodge Challenger SRT8 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2012 Dodge Challenger R/T Classic 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2015-2018 Dodge Challenger SRT 392 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2015-2016 Dodge Challenger R/T Plus 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2015 Dodge Challenger Scat Pack 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2016-2020 Dodge Challenger R/T Scat Pack 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2016 Dodge Challenger R/T Plus Shaker 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2016 Dodge Challenger R/T Shaker 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2016 Dodge Challenger 392 Hemi Scat Pack Shaker 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2017-2018 Dodge Challenger R/T 392 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2017-2018 Dodge Challenger T/A 392 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2017-2018 Dodge Challenger T/A 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2019-2020 Dodge Challenger R/T Scat Pack Widebody 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2006-2010 Dodge Charger SRT8 6.1L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2009-2020 Dodge Charger R/T 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2009-2013 Dodge Charger SE 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2012-2020 Dodge Charger Pursuit 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2012-2014 Dodge Charger SRT8 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2015-2018 Dodge Charger SRT 392 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2015-2018 Dodge Charger R/T Scat Pack 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2015-2016 Dodge Charger R/T Road & Track 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2017-2018 Dodge Charger Daytona 392 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2017-2018 Dodge Charger Daytona 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2017-2018 Dodge Charger R/T 392 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2019-2020 Dodge Charger Scat Pack 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2011-2018 Dodge Durango Citadel 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2011-2018 Dodge Durango R/T 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2011-2013 Dodge Durango Crew 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2014-2015 Dodge Durango Limited 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2018 Dodge Durango SRT 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2006-2008 Dodge Magnum SRT8 6.1L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2011-2018 Jeep Grand Cherokee Overland 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2011-2018 Jeep Grand Cherokee Limited 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2011-2013 Jeep Grand Cherokee Laredo 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2012-2013 Jeep Grand Cherokee SRT8 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2012 Jeep Grand Cherokee Overland Summit 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2014-2018 Jeep Grand Cherokee SRT 6.4L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2014-2018 Jeep Grand Cherokee Summit 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2017-2018 Jeep Grand Cherokee Trailhawk 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2018 Jeep Grand Cherokee Trackhawk 6.2L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position
2018 Jeep Grand Cherokee High Altitude 5.7L V8 CAS-105067 Replacement for the matched existing extension; match connector and sensor position

Ordering and delivery

Estimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.

Technical specifications

Specification Details
SKU CAS-105067
Application Chrysler 300 / Dodge Charger, Challenger and Magnum; 5.7L / 6.1L / 6.4L HEMI
Included harnesses Two 6-inch front harnesses; 4-pin; Two 18-inch rear harnesses; 4-pin
Purchase purpose Replacement for damaged or lost extensions; Kooks header kits include required extensions where needed

Frequently asked questions

What is supplied?

Two 6-inch front harnesses; 4-pin; Two 18-inch rear harnesses; 4-pin.

Do I need this as an extra with a new header kit?

Kooks includes the required extensions in its header kits where needed. Use this listing for a damaged or lost extension.

Will this change how my O2 sensor works?

It extends the electrical connection. Match the existing sensor and harness connector; the extension is not a replacement oxygen sensor.

Delivery, customs and taxes

Know the landed cost before you order

Prices include VAT. Shipping is charged separately and calculated at checkout for your destination. If no shipping option is shown, contact us for a quote before ordering.

Lead times and urgent orders

Check timing before you commit

Estimated lead time: 4–6 weeks. Delivery may be faster depending on stock levels. Contact us before ordering if timing matters.

Fitment first

Check fit before you order

Model year, engine, drivetrain, hardware and existing modifications can all change what fits. Check the applications and supplier notes above, or send us your exact vehicle and setup before ordering.

Check vehicle fitment
Need help with this product?

Send us your vehicle, year, current setup and any fitting date, event, trip or deadline before ordering. We will help check fitment, product choice and timing.

Kooks HEMI LX O2 Extension Kit | CAS-105067
Kooks HEMI LX O2 Extension Kit | CAS-105067
Available to Order £104.63