NAMZ O2 Sensor Harness Extension — adapts 18 mm to 12 mm – 12-16 Dyna, 09-16 Touring, 09-16 CVO, 10-16 Trike, 12-16 Softail

Use this O2 sensor harness extension to adapt 18 mm sensor bungs for late-model bikes with 12 mm sensors. 🔧

• Allows the use of exhaust systems with 18 mm O2 sensor bungs on bikes with 12 mm O2 sensors.
• Reduces 18 mm bungs to 12 mm for select '10–'15 models.
• Wiring harness comes pre-assembled with connector pins for quick, reliable connections.
• Made in the United States.

Simple plug-and-play installation for compatible models; no cutting or splicing required.