O2 Sensor Spacer Adapter M18x1 Hex Connector & Mesh Filter

O2 Sensor Spacer Adapter – Threaded Hex Connector with Stainless Steel Mesh Filter

Keep your vehicle running smoothly on off-road builds and custom exhaust setups with this durable M18x1 O2 sensor spacer adapter. Crafted from high-quality aluminum alloy and paired with a 304 stainless steel mesh filter, this hex connector is designed for reliability and ease of installation. Ideal for off-road use where exhaust system modifications require a reliable sensor extension fitting.

Note: This product is intended for off-road use only. It is not designed for use on emissions-controlled, street-legal vehicles.

Key Features

• Premium Materials: Aluminum alloy body combined with a 304 stainless steel mesh filter for durability and heat resistance.
• M18x1 Thread: Standard M18x1 thread pitch for broad compatibility with common O2 sensor ports on exhaust systems.
• Hexagonal Design: Easy wrench installation and removal with the hex-nut shape — no special tools required.
• Mesh Filter Included: Built-in stainless steel mesh helps regulate sensor readings during off-road exhaust modifications.
• 2-Piece Kit: Package includes 2 adapter parts for a complete installation solution.
• Off-Road Application: Designed for custom or modified exhaust setups where catalytic converter removal may trigger sensor error codes (P0420/P0430) on off-road vehicles.

Specifications

• Material: Aluminum Alloy + 304 Stainless Steel Mesh Filter
• Thread Size: M18 x 1.0
• Shape: Hexagonal (Hex Nut)
• Package Contents: 2 pieces
• Use: Off-road vehicles only
• Made in Mainland China

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Learn more: FuelEconomy.gov driving efficiency guidance

Frequently Asked Questions

Q: What thread size does this O2 sensor spacer adapter use?

A: This adapter uses a standard M18 x 1.0 thread pitch, which is the most common thread size for O2 (oxygen) sensor ports on automotive exhaust systems, ensuring wide compatibility with many vehicle models.

Q: Is this O2 sensor spacer adapter street-legal?

A: No. This adapter is designed strictly for off-road use only. It is intended for modified or custom exhaust builds on off-road vehicles and should not be used on emissions-regulated, street-legal vehicles.

Q: What is included in the package?

A: The package includes 2 adapter pieces — a hex connector body made of aluminum alloy and a 304 stainless steel mesh filter, providing everything needed for a complete off-road sensor spacer installation.

Q: What materials are used in this sensor adapter?

A: The adapter body is constructed from aluminum alloy for lightweight strength, while the filter mesh is made from 304 stainless steel, offering excellent heat and corrosion resistance in demanding exhaust environments.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.