West Lake Tactical

Oxygen O2 Sensor Spacer Adapter Bung Catalytic Converter Fix Check Engine Light

AUTO-O2SNS-APTR-16D14 (net)

Vehicle Parts & Accessories

  • Threads made with dedicated tool, perfect accuracy and repeatability.
  • Simple structure, premium material, not easy to deform or rust.
  • Universal fitment for most vehicles with the M18*1.5 O2 sensor hole.
  • Made of premium quality steel material, high strength and durable.
  • Easy installation, direct bolt-on, no modification needed.
  • Material : Stainless Steel
  • Weight: 44g
  • Size:As the picture shown
  • Thread: M18 X 1.5 46.5mm
  • Color: Silver
What causes the CEL on?
  • There are many aspects to cause the CEL on, one aspect is catalytic problem.
  • And our CEL eliminator is one kind of small catalytic converter in front of the O2 sensor, so if your real catalytic converter is broken, the CEL eliminator can help you to reduce the toxic gas.
  • But sometimes, the CEL alert is caused by O2 sensor problem. For example the O2 sensor is too sensitive, the CEL will still on after you load the eliminator. And still it will cause more Code error!
  • So our CEL eliminator (someone call it Mini cat) can not solve all the problem on CEL alert.
  • It can only solve one of the P0420 code--faulty catalytic converter (most common)
  • Don't take a chance on using an extension only as often they do not work, this is a real mini Catalytic Converter built into it.
  • This O2 cel fix with miniature cat will trick your ECU into thinking the stock catalytic converter is still installed. When you remove your catalytic converter, your post O2 sensor will see higher temperatures and greater flow of unburnt fuel.
  • As a result this will throw check engine lights (Cel, SES, DTC) typically the error codes will be P0420 (Catalyst System Efficiency Below Threshold Bank 1) and/or P0430 P0420 - Catalyst System Efficiency Below Threshold Bank *For OFF ROAD use only.
  • Please compare the details before you purchase.
  • Professional installation or guidance is highly recommended if you have any difficulties in use.
  • Due to the lighting and screen settings, the real color may slightly different from the picture.
  • Please allow slight size differences due to different manual measurement.
Items Included
  • One (1) O2 Sensor Spacer Adapter

==>Return Center==<

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.)

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Customer Reviews
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  • exhaust
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United States United States


Part came quickly. Was correct part and fixed my problem. Thank you West Lake Tactical!

mike a.
United States United States

Same result

Didn’t work..still had cat codes except now p0139 slow response

Roof G.
United States United States

O2 spacer

Works great .

United States United States

O2 spacer

Worked excellent as advertised.Very good site to deal with.THANKS

United States United States

Works As Designed

Works as designed, pretty much plug and play. Just be aware that this is a 2 piece spacer that also unscrews just below the exterior threads where you can add some steel wool if required, you might want to add some LOCTITE to them so that it will not rattle loose and drop into the exhaust.

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