Nox Sensor

Premium NOx Sensors for Heavy-Duty Diesel Engines

Nitrogen oxide (NOx) sensors are critical emission control components that monitor exhaust gas composition in real-time, enabling selective catalytic reduction (SCR) systems to optimize diesel exhaust fluid (DEF) injection and maintain compliance with EPA Tier 4 Final and Euro VI emission standards.

Key Applications:

• Heavy-duty on-highway trucks and commercial vehicles
• Off-highway construction and mining equipment
• Agricultural machinery and tractors
• Industrial power generation and stationary engines
• Marine diesel propulsion systems

Technical Features:

• High-temperature zirconia ceramic sensing elements rated for continuous exhaust gas exposure
• Dual-cell electrochemical design for accurate NOx and O₂ measurement
• Integrated heating elements for rapid sensor activation and stable operation
• OEM-equivalent electrical connectors and mounting configurations
• Wide operating range: -40°C to 800°C exhaust gas temperature

Quality Standards:

All NOx sensors meet or exceed OEM specifications and are validated for durability, accuracy, and long-term reliability in demanding heavy-duty applications. Cross-reference data available for Cummins, Detroit Diesel, Caterpillar, Volvo, Paccar, and other major engine platforms.

Proper NOx sensor function is essential for preventing SCR system faults, avoiding derate conditions, and ensuring optimal fuel economy and emission compliance throughout the service life of your equipment.