HEBRAR O2 Sensor Adapter Kit for 1-3/4"–2" Exhaust Pipes — No-Weld Clamp, 304 Stainless

HEBRAR's clamp-on wideband O2 sensor adapter kit lets you add or relocate a wideband oxygen sensor to 1-3/4"–2" exhaust pipes without welding.

This no-weld sensor bung kit is built from 304 stainless steel and includes the bracket, bolts, nuts, crush washers, flanges, gasket and a removable spacer so you can mount a wideband O2 sensor quickly and create a sealed, serviceable connection. It fits pipes from 1-3/4" up to 2" OD and accepts standard M18 x 1.5 threaded sensors commonly used for wideband air/fuel monitoring.

How does the clamp-on design simplify installation?

The clamp-on bracket removes the need for welding, holding the bung against the exhaust pipe with two bolts and a gasket to form a tight seal. It’s intended for straightforward installation with basic tools and reduces labor time compared to cutting and welding a new bung.

• Open bracket clamps around the pipe — no torch required
• Includes gasket and crush washers to minimize leaks
• Two-bolt fastening gives secure, repeatable mounting
• Removable spacer lets you set sensor clearance from the pipe

Will this adapter prevent exhaust leaks and protect my sensor?

The kit includes sealing hardware and a precision-formed flange so the sensor threads compress the gasket and create a leak-resistant joint. The removable spacer positions the sensor tip away from direct contact with the pipe, reducing heat transfer and contact risk.

• 304 stainless construction resists corrosion and warping
• Crush washers and gasket ensure a tight seal at the flange
• Spacer keeps the sensor tip clear of internal pipe edges
• M18 x 1.5 female thread fits most wideband sensors securely

Which pipe sizes and sensors are compatible with this kit?

The HEBRAR adapter is adjustable for exhaust pipes with outer diameters between 1-3/4" and 2" (44.45mm–50.8mm). It’s designed to accept wideband oxygen sensors with a standard M18 x 1.5 thread, which covers the majority of aftermarket wideband sensor models.

• Adjustable clamp spans 1-3/4" to 2" OD pipes
• Standard M18 x 1.5 female thread for wideband sensors
• Check pipe OD and sensor thread before ordering
• Removable spacer provides fine-tuning for sensor placement

What are the key materials and durability features?

All load-bearing parts are made from 304 stainless steel to resist rust and maintain clamp tension under heat cycles. The design focuses on long-term reliability in exhaust environments where vibration and thermal expansion are present.

• 304 stainless steel bracket and flanges for corrosion resistance
• Hardware (bolts, nuts) supplied for a robust clamp connection
• Gasket and crush washers reduce the chance of leaks over time
• Removable parts make maintenance and sensor replacement easier

Who this is for: The HEBRAR clamp-on O2 sensor adapter suits DIY mechanics, tuners and shop technicians who need a fast, reversible way to add or relocate a wideband oxygen sensor without welding. It’s ideal for custom exhaust projects, diagnostic installs, track cars and any application where preserving the original pipe or avoiding heat damage is important. Confirm your pipe OD and sensor thread type before purchasing to ensure compatibility.