Compatible with diesel vehicles equipped with exhaust particulate (PM) sensor systems using OEM references LK21-5L216-AA / 0281008055 / 0281008056 / 0281008054 in diesel aftertreatment (DPF system).

Typical applications include:

• Ford / European diesel platforms using linked SCR + DPF soot monitoring systems
• Selected 2.0–2.2L diesel engine applications (market-dependent calibration variants)
• Vehicles equipped with diesel particulate filter (DPF) regeneration feedback sensor system
• Diesel engines using post-DPF particulate matter monitoring for emissions control

⚠️ Note: This is a post-DPF particulate matter (soot) sensor, not a NOx sensor or pressure sensor. It measures soot concentration after the diesel particulate filter to monitor filter efficiency and support regeneration control.

Function: Installed downstream of the DPF in the exhaust aftertreatment system, the sensor continuously measures particulate emissions and sends data to the ECU. This helps optimize regeneration cycles, detect DPF inefficiency, and ensure emissions compliance.