Fits: 2018 thru 2019 Chevy Silverado/GMC Sierra 2500HD/3500HD L5P Duramax Diesel

*Contact us for current lead times*

OEM GM replacement upstream (position 1) NOx sensor. This Nitrogen Oxide sensor is located upstream in the downpipe.

DmaxStore Note: 

• Programming required with GM scan tool or equivalent

Replaces Part#'s:

• GM 12680215
• GM 12718742