ATP Q21-6170-003 DEF Quality Sensor for Paccar Kenworth Peterbilt

ATP Q21-6170-003 DEF Quality Sensor

The ATP Q21-6170-003 DEF Quality Sensor is a direct replacement for OEM Paccar DEF concentration sensors used in Kenworth and Peterbilt trucks. Designed to provide accurate Diesel Exhaust Fluid quality readings, this sensor helps maintain proper SCR system operation and emission compliance.

Features

• Direct replacement for Q21-6170-003
• Compatible with many Kenworth and Peterbilt applications
• Accurate DEF concentration monitoring
• Plug-and-play installation
• Heavy-duty construction for commercial truck environments

Cross References

• Q21-6170-003
• Q21-6170-003K1T
• Q21-6167-003K1T
• Q21-6127-006K1T

Applications

• Kenworth Trucks
• Peterbilt Trucks
• PACCAR SCR Emission Systems

Please verify part number and compatibility before ordering.

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