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Oxygen Sensor Adapter with Internal Filter Element for M18 by 1.5 Thread

£64.95 £19.95 Save 69%
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NOTICE: This product is one of our bestsellers and is already sold out in our physical store. If the “ADD TO BAG” button still works, it means the product is still in stock online in limited quantities.

Stop Check Engine Lights After Exhaust Work with This Sensor Adapter

You finish your exhaust upgrade and that warning light pops right back on. You're stuck dealing with error codes every single drive, and the dashboard glow won't quit. This adapter is designed for use with compatible M18 x 1.5 oxygen sensor installations on modified exhaust systems.

The built-in filter element sits inside the adapter body between the oxygen sensor and the exhaust system. It weighs 40 grams and installs using compatible M18 x 1.5 threads without cutting, welding, or special equipment.

The body is made from SS304 stainless steel that resists rust and corrosion from heat and moisture. The internal filter element works with your sensor to provide more accurate readings. It fits most vehicles with M18 by 1.5 sensor threads and works on track cars or modified street builds.

The stainless construction handles high exhaust temperatures without warping or breaking down over time. The compact design keeps everything tucked close to your exhaust pipe without hanging low or catching on road debris. The threads match factory sensor specs and tighten securely without stripping or cross threading.

  • STAINLESS STEEL BODY: Built from SS304 stainless steel that stands up to heat, moisture, and road salt without corroding or rusting through.

  • INTERNAL FILTER ELEMENT: Houses an internal filter element inside the adapter body for use with compatible oxygen sensor installations.

  • M18 BY 1.5 THREAD: Matches factory sensor threading on most vehicles, screwing in tight without needing adapters, reducers, or custom fittings.

  • 40 GRAM WEIGHT: Stays light enough to avoid putting extra stress on your sensor threads while adding minimal weight to your exhaust setup.

  • COMPATIBLE WITH MODIFIED EXHAUST SYSTEMS: Designed for use with compatible M18 x 1.5 oxygen sensor installations on modified exhaust systems.

  • TRACK AND STREET USE: Works on modified vehicles used for racing, off-road driving, or daily street use where exhaust changes trigger warning lights.

  • NO CUTTING OR WELDING: Threads directly onto your existing sensor bung without needing fabrication work, power tools, or permanent exhaust modifications.

SENSOR ADAPTER SPECS

  • Material: SS304 Stainless Steel

  • Thread Size: M18 by 1.5

  • Weight: 40 Grams

PACKAGE INCLUDES:

  • 1 x Sensor Adapter with Internal Filter Element

  • 1 x Installation Instructions
4.7 (19.342)
Jack Turner

Confirmation came through straight away, then another email when it was sent. Tracking worked and the parcel arrived when they said it would. Nice and straightforward

Benjamin Foster

Nothing missing and no surprises when I opened the parcel. What turned up matched what I’d seen on the website

Hannah Lewis

Had a look around before buying and this was a fair bit cheaper. Arrived as expected too, so happy with that.

Sophie Bennett

I emailed before ordering because I couldn’t work out which option I needed. Got a proper reply explaining the difference, rather than just a link back to the page I’d already read. Might seem a small thing but it helped me decide. Placed the order that evening and I’m happy with what arrived.

Harry Collins

My first order was only a small one a few months back. That went well, so I checked here when I needed something else. Different sort of purchase this time but everything was just as straightforward. Saved me another evening of looking around!

Daniel Thompson

Ordered Sunday evening and it was here Tuesday morning. Wasn’t expecting that, especially ordering over the weekend

Charlotte Brooks

All arrived, all good 😊

Amelia Scott

Entirely my mistake, I picked the wrong option and only noticed when the confirmation came through. Sent an email and they managed to change it before dispatch. Very relieved I didn’t have to deal with returning it afterwards!

George Wilson

Bought it in the sale. Happy with what I paid and it’s what I was after, which is the main thing.

Grace Mitchell

Hadn’t heard of Havenholt before and wasn’t sure about ordering from somewhere new. Only bought one thing to start with. There was a short wait for dispatch, but they kept me updated and everything arrived as described. Happy with the purchase and I’d be comfortable ordering again.

Emily Carter

There was a mix-up with my order so I had to get in touch. Sent a photo over and they explained what would happen next. Didn’t have to keep repeating myself to different people, which I really appreciated. All sorted now

Samuel Reed

They didn’t have the one I wanted when I went into the shop, but suggested checking online. Managed to order it on the website later that day. Would have preferred to take it home there and then, but this worked out fine.

Oxygen Sensor Adapter with Internal Filter Element for M18 by 1.5 Thread
Oxygen Sensor Adapter with Internal Filter Element for M18 by 1.5 Thread
£64.95 £19.95

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Company name: Havenholt LTD

Address: St Andrew's Street, Cambridge CB2 3BJ, United Kingdom

Email: support@havenholtsoho.com

Phone: +44 1223 302601

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M18x1.5 Oxygen Sensor Adapter with Internal Filter – Stainless Steel Lambda Spacer