O2 Sensor Adapter Universal M18x1.5 Stainless Steel
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Engine warning lights eliminated with simple adapter fit
Eliminates check engine light errors from exhaust sensors — universal M18x1.5 (approx. 0.709 in × 0.059 in) fit, stainless steel construction, no complex modifications required
Why is this O2 Sensor Adapter perfect for you?
✔ Reduces error codes from aftermarket exhaust sensors: This adapter effectively eliminates annoying check engine light issues caused by retrofitted sport and aftermarket exhaust systems. It reduces error codes by optimizing exhaust sensor readings, improving diagnostic accuracy and preventing false alerts.
✔ Durable, heat- and corrosion-resistant stainless steel: Constructed from stainless steel, the adapter offers lasting reliability by resisting heat and corrosion typically encountered in exhaust environments. This ensures long-term performance without frequent replacements.
✔ Universal fit with easy installation: Designed for universal compatibility with M18x1.5 (approx. 0.709 in × 0.059 in) threaded O2 sensor connections, the adapter installs directly between sensor and exhaust manifold without special tools or modifications, simplifying integration into most vehicles.
Technical specifications
Material: Stainless steel
Thread size: M18x1.5 (approx. 0.709 in × 0.059 in)
Application: Check Engine Light eliminator
Compatibility: Universal for M18x1.5 (approx. 0.709 in × 0.059 in) O2 sensor connections
Frequently asked questions
Quick answers about ordering from Couje. More detail on our full FAQ page.
How much does shipping cost, and how long does it take?
Shipping is free on every order — no minimum. Orders are typically delivered within 4–12 business days (processing included), and every order includes tracking. Full details are in our Shipping Policy.
What is your return policy?
You can return items within 30 days of delivery. Once your return is received and inspected, we process your refund to the original payment method. See our Return & Refund Policy for the full process.
How do I track my order?
As soon as your order ships, we email you a tracking number. You can follow your delivery at any time on our Track Your Order page.
How can I reach customer service?
Email us at support@couje.com or use our contact form. Our team is available Monday – Friday: 09:00 AM – 05:00 PM EST and replies within 24 hours. Saturday – Sunday: closed.