🔧 Oxygen Sensor Spacer Adapter — Mini Catalytic Converter
Fix P0420 / P0430 Check Engine Light
Stops annoying CEL triggered by downstream O₂ sensor readings after:
- ✔ Catalytic converter removal
- ✔ High-flow performance cats
- ✔ Modified exhaust systems
- ✔ Sensor replacements causing false efficiency codes
This product can help clear CEL codes triggered by downstream O₂ sensor readings, even in some cases where the catalytic converter is removed or modified, but it does not restore actual catalytic function and cannot fix a physically damaged catalytic converter.
Clears common CEL codes: P0420, P0421, P0422, P0423, P0424, P0430, P0431, P0432, P0433, P0434, P0042
⭐ Why Customers Choose It
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Built-in mini catalytic element — more effective than hollow spacers
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Direct bolt-on (M18 × 1.5) — installs in minutes
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Premium stainless steel — high-temperature durability
- Ships fast from California + 30-day returns
📌 Specifications
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Thread: M18 × 1.5
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Type: 45° O₂ Sensor Spacer with Integrated Mini Catalytic Converter
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Material: Stainless Steel
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Condition: Brand New
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Package Includes: 1 × Oxygen Sensor Spacer
🚚 Shipping Information
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Free standard shipping via USPS from California
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Expedited shipping (UPS 2-day) available at checkout for an additional fee
- Most orders processed same day
- 30-day hassle-free returns
❓ Frequently Asked Questions (FAQ)
🔧 Is it compatible with my car?
Yes — fits any vehicle that uses a standard M18 × 1.5mm O₂ sensor thread, which covers 99% of all cars, SUVs, and trucks.
📐 Which model should I choose?
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Straight (180°): Best if there is enough space behind the sensor
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45° / 90°: Use when space is tight or you need an angled install. If unsure, your mechanic can confirm the best angle in seconds.
📦 How many do I need?
It depends on your exhaust setup:
- Single‑pipe exhaust with one downstream O₂ sensor → typically 1 spacer
- Dual‑pipe exhaust or engines with two exhaust banks (e.g., many V6 / V8 / V10 / V12) with a downstream O₂ sensor on each bank → 2 spacers (one per bank) recommended
🇺🇸 Where is it made?
Made in the USA.
Ships directly from California, USA.
