• O2 Sensor Spacer Adapter
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O2 Sensor Spacer Adapter, Mini Catalytic Converter M18x1.5

O2 Sensor Spacer Adapter, Mini Catalytic Converter M18x1.5

Rated 4.8 • Over 50,000 Sold
$26.95 $54.00 Save $27.05
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Order now, ships by Monday, November 16
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The O2 Sensor Spacer Adapter from Larkmere is a stainless steel M18x1.5 adapter with a built-in mini catalytic converter. It is made for vehicles where an exhaust upgrade, such as a high-flow catalytic converter, has triggered a check engine light.

O2 Sensor Spacer Adapter – picture 1

The adapter fits between the exhaust and the O2 sensor and has an internal mini catalytic converter. Its magnetic induction technology is designed to help the engine control unit (ECU) read factory-level values while engine performance stays unchanged. It is made of stainless steel that stands up to high exhaust temperatures and has M18 x 1.5 internal and external threads for vehicles with an M18x1.5 sensor fitting.

O2 Sensor Spacer Adapter – picture 2

Installation is a four-step bolt-on process that needs no special tools, and installation instructions are included. The compact form is designed to keep ground clearance. The package includes 2 adapters.

O2 Sensor Spacer Adapter – picture 3

  • Material: Stainless steel
  • Thread: M18 x 1.5, internal and external
  • Sensor: Magnetic induction
  • Core Part: Mini catalytic converter
  • Application: O2 sensor spacing
  • Installation: Bolt-on, four steps, no special tools
  • Includes: 2 adapters, installation instructions

Shipping & delivery

We offer free shipping on all orders. Orders are typically processed within 1-3 business days, and you will receive a tracking number by email as soon as your order ships. See our Shipping Policy for all details.

30-day easy returns

Not happy? You can return your item within 30 days of delivery. Broken or damaged items are replaced or refunded for free. If you changed your mind, the item must be unused and you pay the return shipping. See our Refund Policy.

Questions? We are here to help

Email us at info@shoplarkmere.com or call +47 72 83 80 98. Our customer service is available from Monday to Friday between 9:00 am and 5:00 pm (EST), and we reply within 24 hours.

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What our customers have to say:

Verified

Great quality, very happy!

Overall very happy, quality is as great as expected and the shipping was quick.

Mary P., 15 hours ago

Verified

Works like shown!

I was sceptical at first, but it legit looks & works like shown in the pictures. Can recommend!

Hannah W., 3 hours ago

Verified

Support is awesome!

My order arrived with a small scratch. I got a replacement 100% free within 5 days, very rare these days!

Daniel T., 21 hours ago

Verified

Exactly what I needed

I use it every single day. Very pleased, it looks exactly the same as shown online.

Louis H., 18 hours ago

Verified

Seems very premium

Product is great and feels high quality. Bought a second one for my wife.

Nancy C., 14 hours ago

Rated 4.6 / 5 based on 1289 reviews. Showing our 4 and 5-star reviews.

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