GM Upstream NOx Sensor, 2015 LML

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Fits: 2015 Chevy Silverado/GMC Sierra 2500HD/3500HD LML Duramax Diesel OEM GM replacement upstream (position 1) NOx sensor. This Nitrogen Oxide sensor is located upstream in the do wnpipe. DmaxStore Note: Programming required with GM scan tool or equivalent Replaces Part#: GM 19302359 GM 19301328 Show more