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O2 Sensor Adapter CEL Fix with Mini Catalytic Converter M18x1.5
  • O2 Sensor Adapter CEL Fix with Mini Catalytic Converter M18x1.5
  • O2 Sensor Adapter CEL Fix with Mini Catalytic Converter M18x1.5
  • O2 Sensor Adapter CEL Fix with Mini Catalytic Converter M18x1.5
  • O2 Sensor Adapter CEL Fix with Mini Catalytic Converter M18x1.5
  • O2 Sensor Adapter CEL Fix with Mini Catalytic Converter M18x1.5
  • O2 Sensor Adapter CEL Fix with Mini Catalytic Converter M18x1.5
  • O2 Sensor Adapter CEL Fix with Mini Catalytic Converter M18x1.5
  • O2 Sensor Adapter CEL Fix with Mini Catalytic Converter M18x1.5
  • O2 Sensor Adapter CEL Fix with Mini Catalytic Converter M18x1.5
  • O2 Sensor Adapter CEL Fix with Mini Catalytic Converter M18x1.5
  • O2 Sensor Adapter CEL Fix with Mini Catalytic Converter M18x1.5
  • O2 Sensor Adapter CEL Fix with Mini Catalytic Converter M18x1.5
  • O2 Sensor Adapter CEL Fix with Mini Catalytic Converter M18x1.5
  • O2 Sensor Adapter CEL Fix with Mini Catalytic Converter M18x1.5
O2 Sensor Adapter CEL Fix with Mini Catalytic Converter M18x1.5
4.89 / 5
Based on 2,571 reviews
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O2 Sensor Adapter CEL Fix with Mini Catalytic Converter M18x1.5

$29.95
$29.95 $42.90
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J. Parker

Fast shipping and really well packed – nothing was rattling around in the box. Good quality for the price. Already thinking about ordering another one.

J. Parker
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Silence Your Check Engine Light for Good — Drive with Total Confidence

That persistent check engine light after an exhaust mod or catalytic converter removal doesn't have to haunt every drive. This O2 Sensor Adapter features a built-in miniature catalytic converter that tackles the root cause — not just the symptom. The result: error codes like P0420 and P0430 are effectively cleared, giving you a clean dashboard and a stress-free ride.

O2 sensor adapter with mini catalytic converter

Benefits of the O2 Sensor CEL Fix Adapter

  • True mini catalytic converter: Unlike risky spacer extensions, this adapter houses a real built-in catalytic converter for accurate, reliable CEL elimination.
  • Clears P0420 & P0430 codes: Directly addresses the most common post-cat oxygen sensor error codes triggered after exhaust modifications.
  • Rust & corrosion resistant: Constructed from SS304 stainless steel and a stainless steel filter mesh for lasting durability under demanding conditions.
  • Fast and simple installation: M18x1.5 thread screws directly into your existing bung — no special tools or complex steps required.
  • Lightweight design: Weighs only 0.088 lb, adding virtually no extra load to your exhaust system.
CEL fix adapter installed on exhaust

Specifications

  • Material: SS304 stainless steel with stainless steel filter mesh
  • Thread size: M18x1.5
  • Built-in feature: Miniature catalytic converter
  • Weight: 0.088 lb
  • Compatibility: Post-O2 / downstream oxygen sensor bung
  • Error codes addressed: P0420, P0430 (CEL, SES, DTC)
  • Use: Off-road use only

What's in the Box?

  • O2 sensor adapter: 1x M18x1.5 CEL fix adapter with built-in mini catalytic converter

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⚡︎ Last chance! SHOPAVERLY + offer ⚡︎

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Frequently asked questions

Where do you ship?

We ship within the United States only. No international shipping.
Is shipping free?

Yes. All orders ship free of charge, regardless of cart value.
When is my order processed?

We prepare orders in 1–2 business days, with protective packaging. Orders placed before 4:00 PM Mountain Time on a business day are processed the same day.
How do I track my order?

As soon as your order ships you receive an email with the tracking number and carrier link. You can also check anytime on our Track your order page.
How long does shipping take?

Orders are typically processed within 1–2 business days and delivered
within 5–7 business days after dispatch. Orders placed before 4:00 PM
MT on a business day begin processing the same day; orders placed
later or over the weekend begin processing the next business day.
Can I return a product?

Yes. We accept returns within 30 calendar days of delivery — no reason required. Details in the Returns & Refunds Policy.
When do I get my refund?

Within 7 business days of the returned product arriving at the warehouse. Refunds go to the same payment method used at purchase.
Which payment methods do you accept?

Visa, Mastercard, American Express, Discover and Diners Club cards; Apple Pay and Google Pay. Details in the Payment Policy.
Is payment secure?

Yes. Payments run through Shopify Payments and PayPal — PCI DSS Level 1 certified processors, with 3-D Secure and SSL/TLS encryption. Your card details are never stored on our servers.
Are there hidden fees?

No. The price on the product page plus any applicable sales tax shown at checkout is everything you pay. Shipping is free. No handling fees, no surcharges.
Can I cancel or change my order?

Yes, but without delay. Write to support@shopaverly.com. Changes are only possible until the package is handed to the carrier.
I received a different product than I ordered — what do I do?

Contact us by email (support@shopaverly.com) with your order number and photos. We cover return shipping and, your choice, send the correct product or refund you in full.
How do I contact customer support?

Email: support@shopaverly.com. Phone: +1 307 204 0261. Hours: Mon–Fri, 9:00 AM – 5:00 PM (Mountain Time). We reply within 1 business day.

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30 days to return