316 Stainless Steel Exhaust Temperature Sensor Boss – M12 x 1.25

Our premium 316-grade stainless steel exhaust temperature sensor bosses are manufactured in-house to provide excellent durability, corrosion resistance and weldability.

Featuring an M12 x 1.25 threaded connection, these bosses are commonly used for Exhaust Gas Temperature (EGT) sensors on BMW and Ford vehicles, including selected BMW N47, M57 and N57 diesel engines.

Precision-manufactured from high-quality stainless steel, they are ideal for custom exhaust systems, downpipe fabrication and replacing damaged sensor mounting points.

Key Features

• Premium 316 Stainless Steel – Excellent strength, durability and corrosion resistance.
• M12 x 1.25 Thread – Designed to accommodate compatible exhaust gas temperature sensors.
• Manufactured In-House – Produced by our team to ensure consistent quality.
• BMW & Ford Compatibility – Suitable for selected EGT sensor applications, including BMW N47, M57 and N57 engines.
• Excellent Weldability – Ideal for TIG welding and custom stainless steel fabrication.
• Compact Design – Suitable for exhaust systems, downpipes and sensor mounting applications.

Technical Specifications

• Material: 316 Grade Stainless Steel
• Thread Size: M12 x 1.25
• Overall Height: 13.5mm
• Outside Diameter: 20mm
• Wall Thickness: 4.6mm
• Application: Weld-In Exhaust Gas Temperature (EGT) Sensor Boss

Suitable Applications

• Custom exhaust systems
• Stainless steel downpipe fabrication
• Exhaust gas temperature sensor installation
• BMW N47, M57 and N57 diesel engines
• Compatible Ford EGT sensor applications
• General automotive fabrication and exhaust repairs

Important: Please check your existing sensor thread size and mounting dimensions before ordering to ensure compatibility.

Bulk Orders

Need larger quantities for your workshop or fabrication business?

Contact us for competitive bulk pricing on our stainless steel sensor bosses.