Fitment Level: OE Match / Platform Verified

Compatible with GM diesel emission aftertreatment systems using OEM references:

• 12696927
• Bosch 0 281 007 711 (common cross reference)
• Related GM HD PM sensor calibration variants (L5P Duramax platforms)

Typical applications include:

• Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax diesel
• GMC Sierra 2500HD / 3500HD 6.6L Duramax diesel
• GM heavy-duty pickup diesel platforms (2020–2024 generation)

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 slip or filter degradation
• control regeneration timing and frequency
• support emissions compliance for HD Duramax systems

⚠️ 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 L5P Duramax emissions strategy and regeneration logic.

Fitment must always be confirmed strictly by OEM number (12696927), as GM HD diesel systems vary by model year (2020–2024) and calibration updates.