Accurate DEF Monitoring: Paccar PX-9 DEF Sensor (2022–2024), OEM M31-6026
What is it?
The Paccar PX-9 DEF Sensor (OEM M31-6026) plays a critical role in measuring diesel exhaust fluid (DEF) characteristics—like concentration, level, or temperature—to ensure proper DEF delivery in PX-9 powered vehicles from model years 2022 to 2024. It relays real-time data to the control system, helping maintain consistent system performance.
Why choose this OEM DEF Sensor?
This sensor is tailored specifically for Paccar DEF systems and connects seamlessly to existing OEM wiring—no programming or adapter needed. Using the original part helps prevent inaccurate readings, dosing errors, or unnecessary system derates that can occur with aftermarket alternatives.
Key Benefits
✅ OEM drop-in fit for Paccar PX-9 engines (2022–2024)
✅ Delivers reliable DEF system data for better control
✅ Supports optimized DEF dosing and system response
✅ Designed to withstand vehicle vibrations, DEF exposure, and temperature shifts
✅ Helps reduce alerts, limp-mode events, and operational interruptions
Applications
Ideal for Kenworth and Peterbilt trucks powered by PX-9 engines using the latest DEF control systems. This sensor supports clean and consistent DEF system function across varied operating conditions, including highway, city, or severe-service cycles.
Installation Notes
First, ensure the DEF system is cool and deactivate power before servicing. Carefully disconnect the original sensor, keeping surrounding area clean. Replace with the OEM M31-6026 sensor by attaching it to the original connector—no modifications required. After installation, restore power, clear any codes, and confirm proper data feedback via diagnostic tools.
Final Thoughts
If your PX-9 vehicle is showing DEF system inaccuracies, dosing faults, or warning flags, switching to this OEM DEF Sensor is the precise solution you need. Designed for compatibility and system accuracy—available now at Tamerx to keep your routes running smoothly.