Compatible with Isuzu diesel emission aftertreatment systems using OEM references:

• 8976843800
• 8-97684-380-0

Typical applications include:

• Isuzu NPR / NPR-HD diesel trucks
• Isuzu NQR / NRR medium-duty trucks
• Isuzu 4HK1 / 4JJ1 diesel engines with DPF systems
• Euro 5 / Euro 6 diesel emission configurations (market dependent)

Function:
Installed after the diesel particulate filter (DPF), this sensor continuously measures soot concentration in the exhaust stream. The ECU uses this signal to:

• verify DPF regeneration efficiency
• detect soot breakthrough or filter degradation
• optimize regeneration cycles
• support emissions compliance and fault diagnostics

⚠️ Important
This is a DPF particulate matter (PM) sensor, not a NOx or pressure sensor. It directly measures soot concentration downstream of the diesel particulate filter and is essential for Isuzu diesel emission control and regeneration strategy.

Fitment must always be confirmed strictly by OEM number (8976843800), as Isuzu uses this sensor across multiple truck platforms and years with different ECU calibrations and emission standards.