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Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
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40 O2 Oxygen Sensor 4 Wire Extension Harness for VW Audi Golf MK7 Passat If you are installing an aftermarket downpipe(s) on your Volkswagen or Audi you may need to install your post catalytic converter oxygen sensors further away from the engine. This secondary oxygen sensor extension is 40 long and easily connects between the oxygen sensor and the cars wiring harness allowing the oxygen sensor to be installed further down on a downpipe(s). Please note 4.0T engines require 2 harness extensions.
Honestly, I was a little disappointed. The harness worked for a short time but then started causing issues. It was hard to track down the problem, but I ended up replacing it. Just be cautious with this one.
S
Sofia Torres
Decent but took time to arrive
The extension harness itself works fine with my Audi, but I was a bit annoyed with the shipping delay. It took almost two weeks to get here. Once installed, it worked as expected though, so that’s a plus!
J
Jamal Rahman
Great fit for my MK7 Golf
I purchased this 4-wire extension harness for my 2015 VW Golf MK7, and it fit perfectly! The installation was straightforward, and it solved my oxygen sensor issue right away. Highly satisfied with the quality of the product.
L
Liam O'Reilly
Quick installation and good price
I got this for my Audi and was pleasantly surprised by how easy the install was. The price was spot on too. Just needed a few basic tools and I was done in about 20 minutes. Happy with my purchase!
M
Michael Johnson
Solved my problem
Replaced the oxygen sensor in my Passat and needed this extension harness. It did the trick! The wiring seems solid, and it’s been working well for a month now, no issues. Would buy again if needed.
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Is the shipping free?
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
