4903202
Temperature Sensor
Cummins®

Introduction

The Cummins 4903202 Temperature Sensor is designed to monitor engine temperature in commercial trucks. It provides accurate temperature readings to the engine management system, optimizing engine performance and efficiency. This sensor ensures the engine operates within safe temperature ranges, contributing to vehicle reliability and longevity.

Basic Concepts of Temperature Sensors

Temperature sensors measure environmental temperature and convert it into an electrical signal. They are used in automotive systems to monitor components like the engine, transmission, and exhaust. These sensors maintain optimal operating conditions by providing real-time data to the vehicle’s electronic control unit (ECU), which adjusts engine parameters accordingly ¹.

Purpose of the 4903202 Temperature Sensor

The Cummins 4903202 Temperature Sensor is integral to a truck’s engine management system. It measures engine coolant temperature, crucial for maintaining thermal efficiency. By providing precise temperature data, the sensor allows the ECU to make informed decisions regarding fuel injection, ignition timing, and other parameters, ensuring efficient and safe engine operation ².

Key Features

The Cummins 4903202 Temperature Sensor features a robust design and high-quality materials, engineered to withstand harsh commercial truck environments. It incorporates advanced technological specifications for accurate and reliable temperature readings. Its design includes a durable housing and a precision-engineered sensing element, contributing to its longevity and performance.

Benefits of Using the 4903202 Temperature Sensor

Utilizing the Cummins 4903202 Temperature Sensor offers several advantages. It improves engine performance by ensuring operation within optimal temperature ranges, enhancing fuel efficiency through precise ECU adjustments based on accurate temperature data. Additionally, it provides reliable temperature monitoring, preventing engine overheating and potential damage ³.

Installation and Integration

Installing the Cummins 4903202 Temperature Sensor involves ensuring compatibility with the specific engine type and proper integration with the vehicle’s ECU. The process includes locating the appropriate mounting point, connecting the sensor to the coolant system, and wiring it to the ECU. Careful attention to these steps ensures the sensor functions correctly and provides accurate temperature readings.

Troubleshooting Common Issues

Common issues with the Cummins 4903202 Temperature Sensor may include inaccurate temperature readings or sensor failure. To address these problems, perform a systematic diagnosis, checking the sensor’s connections, inspecting the wiring for damage, and verifying the sensor’s calibration. If the sensor is faulty, replacement with a compatible unit is necessary to restore accurate temperature monitoring.

Maintenance Tips

To ensure the longevity and optimal performance of the Cummins 4903202 Temperature Sensor, regular maintenance is recommended. This includes periodic checks of the sensor’s connections and wiring for wear or damage, cleaning the sensor housing to remove any buildup that could affect its accuracy, and ensuring the coolant system is in good condition.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established itself as a trusted name in the commercial truck industry. The company is committed to innovation and quality, consistently delivering products that meet the demanding requirements of commercial vehicle applications. Cummins’ dedication to advancing technology and improving efficiency underscores its role as a leader in the industry.

Compatibility with Cummins Engines

The Temperature Sensor part number 4903202, manufactured by Cummins, is designed to fit seamlessly with a range of Cummins engines. This sensor plays a role in monitoring the engine’s temperature, ensuring optimal performance and preventing overheating.

K19 and K38 Engines

The Temperature Sensor 4903202 is compatible with the K19 and K38 engines. These engines are known for their reliability and efficiency, and the sensor ensures that the engine operates within its optimal temperature range. Proper installation and functionality of this sensor are essential for maintaining engine health and performance.

K50 Engine

The K50 engine also integrates the Temperature Sensor 4903202. This engine is designed for heavy-duty applications, and the sensor’s role in temperature regulation is vital for its longevity and efficiency. Ensuring that the sensor is correctly installed and functioning is key to the engine’s performance.

QSK19 CM850 MCRS Engine

The QSK19 CM850 MCRS engine is another model that utilizes the Temperature Sensor 4903202. This engine is engineered for high-performance applications, and the sensor’s precision in temperature monitoring is critical for its operation. The sensor’s compatibility with this engine ensures that it can handle the demands of heavy-duty use while maintaining optimal temperature levels.

Each of these engines benefits from the accurate temperature readings provided by the 4903202 sensor, ensuring that they run efficiently and reliably. Proper installation and maintenance of this sensor are essential for the overall health and performance of the engines.

Role in Engine Systems

The 4903202 Temperature Sensor is an essential component in the accurate monitoring and regulation of engine temperature. Its integration with various engine systems ensures optimal performance and safety.

Interaction with the Panel

When installed, the 4903202 Temperature Sensor communicates with the engine panel, providing real-time temperature data. This data is vital for the panel’s display, allowing operators to monitor engine conditions continuously. The sensor’s precise readings enable the panel to alert operators to any temperature anomalies, facilitating timely interventions.

Integration with Engine Instruments

The temperature sensor is a key component in the engine instrument system. It feeds temperature data to the instruments, which are then used to maintain engine efficiency. Accurate temperature readings help in adjusting fuel-air mixtures and ignition timing, ensuring the engine operates within its optimal temperature range. This integration enhances the overall reliability and performance of the engine.

Contribution to the Engine Monitoring System

In the engine monitoring system, the 4903202 Temperature Sensor plays a significant role by providing continuous temperature feedback. This system uses the sensor’s data to trigger alerts or automated responses to temperature changes, helping prevent overheating and other temperature-related issues. The monitoring system can adjust engine parameters in real-time based on the sensor’s input, contributing to prolonged engine life and improved operational safety.

Enhancing Engine System Performance

Overall, the 4903202 Temperature Sensor is integral to the engine’s performance and safety. By providing accurate temperature data to the panel, engine instruments, and monitoring systems, it ensures that all components work harmoniously. This results in enhanced engine efficiency, reduced risk of overheating, and improved overall system reliability.

Conclusion

The Cummins 4903202 Temperature Sensor is a critical component in the engine management system of commercial trucks. It ensures accurate temperature monitoring, contributing to engine efficiency, safety, and longevity. Proper installation, maintenance, and integration with engine systems are essential for optimal performance.