15% Off Summer Faves
Use code at Checkout : 15SUMMER
15% Off Summer Faves
Use code at Checkout : 15SUMMER
O2 Sensor Adapter M18 x 1.5 – Fix Check Engine Light, Auto Repair
Free U.S. Shipping
Easy 14-Day Returns
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Tired of that persistent check engine light after modifying your exhaust or removing your catalytic converter? Our Car Oxygen O2 Sensor Adapter is engineered to address this issue, providing a reliable solution for a smoother driving experience.
Unlike simple extensions, our adapter features a built-in mini catalytic converter, ensuring accurate readings and dependable performance. This design effectively turns off the check engine light, giving you the confidence to drive without distractions.

Crafted from high-quality SS304 stainless steel and stainless steel filter mesh, our adapter is resistant to rust and corrosion. This robust construction ensures long-lasting durability, allowing you to benefit from its advantages over time.
Designed for a snug fit, our adapter features M18*1.5 threading, making installation straightforward. Simply screw it into place, and your vehicle is ready to go—no complex procedures required.

Please note that this adapter is intended for off-road use only. It is not designed for use on public roads or highways. Ensure compliance with all applicable regulations before installation.


Q: Will this adapter turn off my check engine light?
A: Yes, the built-in mini catalytic converter is designed to eliminate check engine lights that appear after exhaust modifications or catalytic converter removal.
Q: Is this adapter legal for street use?
A: No, this adapter is intended for off-road use only and is not legal for use on public roads or highways.
Q: How do I install the adapter?
A: The adapter features M18*1.5 threading for easy installation. Simply screw it into place—no additional tools or complex procedures are required.
Q: What error codes does this adapter address?
A: This adapter is designed to address error codes such as P0420 and P0430, which are commonly triggered after removing the catalytic converter.
Q: What materials is the adapter made from?
A: The adapter is made from SS304 stainless steel and stainless steel filter mesh, ensuring durability and resistance to rust and corrosion.
Free UK delivery on every order. Orders are processed in 1–2 business days and shipped within 1–3 business days, for a total delivery time of 2–5 business days.
Not happy with your purchase? Returns accepted within 7 days—no restocking fees
We want you to love what you bought! If it’s not quite right, you have a full 7 days from the day it arrives to send it back.
Just drop us a line at support@aristori.com letting us know why it didn't work out, and we’ll guide you through a smooth return.
Join thousands of satisfied shoppers who have given our fast and dependable service a 5-star rating.
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Throughout the United States
7-day return policy, no questions asked.
Email: support@aristori.com