Dorman 917-111 Oxygen Sensor Bung 18mm Stainless Steel Curved

The Dorman 917-111 is an 18mm curved oxygen sensor bung constructed from durable stainless steel. This welding bung is designed for custom exhaust fabrication or O2 sensor port repair, providing a threaded mounting point for standard M18 x 1.5 oxygen sensors.

Key Features:

• 18mm x 1.5 thread pitch compatible with most oxygen sensors
• Curved design follows exhaust pipe contours for easier installation
• Corrosion-resistant stainless steel construction withstands high exhaust temperatures
• Ideal for custom exhaust systems, header modifications, or damaged bung replacement
• Requires welding for installation

This sensor bung allows you to add or relocate oxygen sensor ports in exhaust systems for tuning purposes, emissions compliance, or air-fuel ratio monitoring. The angled design accommodates installation on curved exhaust components where a straight bung would create clearance issues.