Sensors

At American Radiator, we offer a full line of sensors for heavy-duty trucks and equipment, built to provide accurate monitoring and dependable performance in demanding environments. Many drivers and fleet managers ask: Why are sensors important in diesel engines? The answer is simple—sensors measure temperature, pressure, fluid levels, and flow rates, ensuring your vehicle runs efficiently, meets EPA emissions standards, and avoids costly repairs.

Our aftermarket sensors are engineered to meet or exceed OEM specifications, making them reliable replacements for popular brands including Freightliner, Kenworth, Peterbilt, Volvo, and International. Designed for durability, these sensors deliver precise readings to support essential systems such as the DEF header, cooling system, and SCR emissions controls. By preventing inaccurate signals and failures, they help fleets reduce downtime, improve fuel efficiency, and extend engine life.

To maintain peak performance, we recommend regular system checks and timely sensor replacements based on mileage, workload, and operating conditions. Investing in quality sensors saves money over time by protecting critical components and ensuring regulatory compliance. When your fleet requires accuracy, reliability, and long-term value, trust American Radiator sensors to deliver dependable solutions for heavy-duty sensor replacements nationwide.

FAQ'S

What does a NOx sensor do in a heavy-duty truck?
A NOx sensor measures the levels of nitrogen oxides in exhaust gases, ensuring the Selective Catalytic Reduction (SCR) system reduces emissions properly and keeps the vehicle compliant with EPA standards.

How are American Radiator NOx sensors different from OEM?
Our aftermarket NOx sensors are direct replacements matched by OEM number, designed with enhanced programming to accommodate manufacturer updates, and are brand new with no core charge.

What technology improves the durability of your NOx sensors?
American Radiator NOx sensors use Pulse Width Modulation (PWM) heating technology, which applies short bursts of energy instead of a continuous current. This helps extend the life of the ceramic chip and improves accuracy.

How do your NOx sensors prevent contamination and failure?
The sensor’s probe cap is designed to reduce contamination and evenly distribute exhaust flow around the probe, improving reliability in demanding environments.

Why should you trust aftermarket sensors?
Aftermarket sensors from American Radiator are built to exact OEM specifications for reliable fit and performance. With advanced designs, enhanced durability features, and no remanufactured parts, they provide dependable accuracy and long-term value at a lower cost than OEM replacements.