OEM Used part

Nitrogen Oxide Nox Sensor 12648630 5WK96631D GMC Chevy Silverado 6.6L

This sensor is a direct replacement for vehicles equipped with the 6.6L Duramax V8 Diesel engine, most notably:

2014–2016 Chevrolet Silverado 2500HD / 3500HD

2014–2016 GMC Sierra 2500HD / 3500HD

Functionality untested.

Please see pictures.