Fitment Level: OE Match / Platform Verified

Compatible with GM diesel emission aftertreatment systems using OEM references:

• 12662647
• 12661098 (superseded)
• 12655962 (superseded)

Typical applications include:

• Chevrolet Cruze 2.0 Diesel (2014–2015 Gen 1 diesel models)
• Select GM small diesel platforms with DPF soot monitoring systems

This sensor is used in diesel particulate matter monitoring systems, where it measures soot concentration downstream of the diesel particulate filter (DPF). The ECU uses this signal to:

• verify DPF regeneration efficiency
• detect soot breakthrough or filter degradation
• control regeneration timing
• support emissions compliance and diagnostic fault detection

⚠️ Important:
This is a DPF particulate matter (PM) sensor, not a NOx or pressure sensor.
It directly measures soot concentration after the DPF and is critical for GM diesel emission system control and regeneration logic.

Fitment must always be confirmed strictly by OEM number (12662647), as GM uses superseded revisions depending on model year and calibration level.