Prime Race Parts | Titanium O2 Sensor Weld-On Bung – M18 x 1.5

Prime Race Parts Titanium O2 Sensor Weld-On Bung – M18 x 1.5

Prime Race Parts – Titanium Oxygen Sensor Weld Bung

Add a clean, lightweight oxygen-sensor mounting point to your titanium exhaust system with the Prime Race Parts Titanium O2 Sensor Weld-On Bung.

Featuring the common M18 x 1.5 thread, this weld-on bung is designed for fitment of compatible oxygen and wideband lambda sensors used throughout modern EFI, data-logging and engine-management systems.

Manufactured from titanium, the bung is an ideal match for custom titanium exhaust fabrication, allowing the sensor mounting point to be incorporated without introducing a dissimilar weld material into the exhaust assembly.

Whether you're building a complete race exhaust, adding individual cylinder monitoring or installing a wideband sensor for tuning and data acquisition, the Prime Race Parts O2 bung provides a simple and professional fabrication solution.

Features & Benefits

• Titanium construction
• M18 x 1.5 sensor thread
• Designed for weld-on installation
• Suitable for common oxygen and wideband lambda sensors
• Ideal for titanium exhaust-system fabrication
• Lightweight alternative to conventional stainless-steel bungs
• Excellent heat and corrosion resistance
• Creates a clean, permanent sensor mounting point
• Suitable for EFI and data-logging installations
• Ideal for high-performance street and race applications
• Professional motorsport appearance

Technical Specifications

• Product Type: O2 / Lambda Sensor Weld Bung
• Brand: Prime Race Parts
• Material: Titanium
• Thread Size: M18 x 1.5
• Installation Type: Weld-On
• Application: Universal Motorsport Exhaust Fabrication

Applications

• Wideband oxygen sensors
• Lambda sensors
• Narrowband oxygen sensors with compatible thread
• Titanium exhaust systems
• Turbocharger downpipes
• Collector and merge-pipe fabrication
• Individual cylinder O2 monitoring
• EFI tuning systems
• Race-car data acquisition
• Drag racing applications
• High-performance street vehicles
• Custom motorsport exhaust fabrication

Ideal for Wideband O2 & Lambda Sensors

Accurate oxygen-sensor data is fundamental to modern engine tuning.

A correctly positioned O2 or lambda sensor allows the ECU, wideband controller or data logger to monitor exhaust oxygen content and calculate air-fuel ratio or lambda throughout engine operation.

For race applications, additional O2 sensor locations can also be incorporated into the exhaust system for individual-bank or individual-cylinder monitoring where the engine-management package supports it.

Why Use a Titanium Bung?

When fabricating a titanium exhaust system, using matching titanium components helps maintain consistency throughout the assembly.

Titanium provides an excellent combination of low weight, heat resistance and corrosion resistance, making it particularly well suited to high-temperature motorsport exhaust applications.

A dedicated titanium sensor bung also provides the fabricator with the correct material for welding directly into Prime Race Parts titanium tube, bends, collectors and exhaust sections.

Installation & Fabrication Notes

Correct sensor placement is important for accurate readings and sensor durability.

The bung should be welded into the exhaust at a suitable angle and location that protects the sensor from excessive condensation, impact and direct exposure to extreme exhaust heat where possible.

Professional TIG welding with correct shielding and back-purging is recommended when welding titanium.

Before welding, fitment of the intended sensor should be checked to confirm thread compatibility and surrounding clearance.

Important Application Notes

This bung uses an M18 x 1.5 thread, which is common across many automotive oxygen and wideband lambda sensors. Always confirm the thread specification of your specific sensor before installation.

The oxygen sensor itself is not included unless otherwise stated.

Why Choose Prime Race Parts?

Prime Race Parts develops lightweight, fabrication-focused components for race teams, chassis builders and performance workshops.

From titanium straight tube, bends and V-band assemblies through to mufflers, flex bellows and sensor bungs, Prime Race Parts provides the components needed to build complete professional titanium exhaust systems.

Why Buy From Prime Speedworks

Prime Speedworks supplies Prime Race Parts titanium fabrication components to racers, engine builders, fabricators and performance workshops throughout Australia.

Whether you're adding a single wideband sensor or fabricating a complete titanium exhaust and data-acquisition package, Prime Speedworks can supply the tubing, bends, V-bands, flex joints and sensor mounting components required to complete the installation.