HEBRAR O2 Sensor Adapter Clamp-On for 1-3/4"–2" Exhaust Pipe — 304 Stainless No-Weld Kit, M18 x 1.5

This stainless steel clamp-on bung provides a fast, reversible way to mount a replacement or additional wideband oxygen sensor to an automotive exhaust system. The kit includes a 304 stainless bracket, fasteners, crush washers, flanges, an exhaust gasket and a removable spacer adapter with a universal M18 x 1.5 female thread that fits most wideband sensors. Designed for simplicity and corrosion resistance, the no-weld design reduces shop time and preserves the original exhaust tubing.

How does the clamp-on design simplify adding a wideband sensor?

Instead of cutting and welding in a permanent bung, this clamp-on adapter wraps around the exhaust pipe and secures the sensor port in place. That means you can install or remove sensors quickly, test sensor positions, or revert to the original configuration later.

• Clamps to 1-3/4"–2" (44.5–50.8 mm) exhaust tubing without welding.
• Includes bracket, bolts, nuts, flanges, gasket and crush washers for a complete install.
• Removable spacer adapter lets you extend or reposition the sensor tip.

Will this adapter seal properly and avoid exhaust leaks?

The kit is engineered to provide a reliable seal when installed correctly: the gasket, crush washers and precisely sized clamp compress to block exhaust leakage. Proper prep — drilling, cleaning shavings and torquing hardware evenly — is essential for a leak-free fit.

• 304 stainless bracket resists corrosion and maintains clamp pressure over time.
• Exhaust gasket and crush washers create a sealed mating surface.
• Adjustable clamp diameter ensures even compression across the pipe circumference.

Which sensors and pipe sizes are compatible with this adapter?

The adapter uses a standard M18 x 1.5 female thread, which fits most aftermarket wideband oxygen sensors and many factory units that share that thread specification. The clamp adjusts to fit exhaust pipes between 1-3/4" and 2" in outer diameter, so confirm your pipe size prior to ordering.

• Thread: M18 x 1.5 female — common for wideband O2 sensors.
• Pipe range: 1-3/4" to 2" outer diameter (check before purchase).
• Removable spacer supports both flush and slightly extended sensor positions.

How difficult is installation and what tools are required?

Installation is straightforward for anyone comfortable with basic exhaust work: mark the sensor location, drill the pilot hole, clean metal shavings, position the clamp and thread in the sensor. Most installs take 20–45 minutes depending on access and rust conditions.

• Basic tools: drill, appropriate drill bit, ratchet/wrench for included bolts and nuts.
• Use zip ties or heat-protected clips to secure sensor wiring after installation.
• Follow torque guidelines for sensor threads and clamp hardware to avoid damage.

Who is this for: The HEBRAR clamp-on O2 sensor adapter is aimed at DIY mechanics, tuners, and professional shops needing a quick, reversible way to mount a wideband sensor without cutting or welding. It’s ideal when testing sensor placement, adding an auxiliary wideband for tuning, or fitting a replacement sensor where factory bungs are absent or inaccessible. If you need a durable, corrosion-resistant adapter with a standard M18 thread and a no-weld install, this kit provides the components and hardware to get the job done cleanly.