4954490
Temperature Sensor
Cummins®

Introduction

The Cummins 4954490 Temperature Sensor is designed to monitor the temperature within the engine system of commercial trucks. It provides accurate temperature readings to the engine management system, which uses this data to optimize engine performance and ensure efficient operation. This sensor contributes to the overall reliability and efficiency of the truck’s engine.

Basic Concepts of Temperature Sensors

Temperature sensors measure the temperature of their surroundings and convert this measurement into an electrical signal. They operate based on principles such as thermocouples, thermistors, and resistance temperature detectors (RTDs)¹. In automotive systems, these sensors monitor engine temperature, coolant temperature, and oil temperature, providing critical data to the engine management system for optimal performance and efficiency².

Purpose of the Cummins 4954490 Temperature Sensor

The Cummins 4954490 Temperature Sensor is integral to the operation of a truck’s engine management system. It monitors the temperature of the engine coolant, providing real-time data that the system uses to adjust fuel injection, ignition timing, and other parameters. This ensures that the engine operates within its optimal temperature range, enhancing performance, fuel efficiency, and longevity³.

Key Features

This Cummins part is characterized by its robust design and high-quality materials, ensuring durability and accuracy in various operating conditions. It incorporates advanced technology to provide precise temperature readings, contributing to the overall efficiency and reliability of the engine management system. The sensor is designed for easy installation and integration into the truck’s engine system.

Benefits of Using the Cummins 4954490 Temperature Sensor

Utilizing this part offers several advantages. It contributes to improved engine performance by ensuring that the engine operates within its optimal temperature range. This leads to enhanced fuel efficiency, as the engine management system can make more accurate adjustments based on precise temperature data. Additionally, the sensor provides reliable temperature monitoring, which is crucial for preventing engine overheating and potential damage⁴.

Installation and Integration

Installing the Cummins 4954490 Temperature Sensor involves several steps to ensure proper integration into the truck’s engine system. It is important to follow manufacturer guidelines for installation, which may include using specific tools and procedures. Proper installation ensures that the sensor functions correctly and provides accurate temperature readings to the engine management system.

Troubleshooting Common Issues

Common issues associated with the Cummins 4954490 Temperature Sensor may include inaccurate temperature readings or sensor failure. Troubleshooting these problems involves checking the sensor’s connections, ensuring it is properly installed, and verifying that it is compatible with the truck’s engine management system. In some cases, replacing the sensor may be necessary to resolve the issue.

Maintenance Tips

To ensure the longevity and optimal performance of the Cummins 4954490 Temperature Sensor, regular maintenance is recommended. This includes checking the sensor for any signs of damage or wear, ensuring that its connections are secure, and cleaning the sensor as needed to remove any debris or contaminants. Regular maintenance helps to prevent issues and ensures that the sensor continues to provide accurate temperature readings.

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 a reputation for quality, reliability, and innovation in the commercial truck industry. The company’s commitment to excellence is reflected in its wide range of products, including the Cummins 4954490 Temperature Sensor, which is designed to meet the demanding requirements of commercial truck engines.

Temperature Sensor 4954490 Compatibility with Cummins Engines

The Temperature Sensor part number 4954490, manufactured by Cummins, is designed to be compatible with a range of Cummins engines. This sensor plays a role in monitoring the engine’s temperature, ensuring optimal performance and preventing overheating.

Compatible Engines

• QSK38 CM2150 MCRS and QSK50 CM2150 MCRS

  These engines, part of the QSK series, utilize the Temperature Sensor 4954490 to maintain precise temperature readings. The CM2150 designation indicates a specific configuration within this series, ensuring that the sensor fits seamlessly and functions effectively.

• QSK50 CM2350 K108

  The QSK50 CM2350 K108 engine also integrates the Temperature Sensor 4954490. This engine variant benefits from the sensor’s accurate temperature monitoring capabilities, which are essential for maintaining engine health and performance.

• QST30 CM2350 T101

  The QST30 CM2350 T101 engine is another model that is compatible with the Temperature Sensor 4954490. This compatibility ensures that the sensor can effectively monitor and report the engine’s temperature, contributing to the engine’s overall efficiency and longevity.

By ensuring that the Temperature Sensor 4954490 is correctly installed in these engines, operators can rely on accurate temperature readings, which are critical for the engine’s performance and longevity.

Role of Part 4954490 Temperature Sensor in Engine Systems

Part 4954490, a temperature sensor, is integral to the efficient operation of several engine systems. Its primary function is to provide accurate temperature readings, which are essential for the optimal performance and safety of the engine.

Integration with the Electronic Engine Monitor (EEM)

The Electronic Engine Monitor (EEM) relies on precise temperature data to assess the engine’s operating conditions. Part 4954490 delivers real-time temperature readings, allowing the EEM to monitor parameters such as coolant temperature, oil temperature, and intake air temperature. This information is vital for the EEM to make informed decisions regarding fuel delivery, ignition timing, and other critical engine functions.

Interaction with the Engine Control Module (ECM)

The Engine Control Module (ECM) uses the data from Part 4954490 to adjust various engine parameters dynamically. Temperature readings from this sensor help the ECM to fine-tune the air-fuel mixture, optimize combustion efficiency, and prevent overheating. By maintaining optimal engine temperature, the ECM ensures that the engine operates within safe limits, enhancing both performance and longevity.

Contribution to the Engine Monitoring System (EMS)

Within the Engine Monitoring System (EMS), Part 4954490 plays a supportive role by providing continuous temperature feedback. This system uses the sensor’s data to generate alerts and warnings for the operator, indicating any deviations from normal operating temperatures. Such proactive monitoring allows for timely interventions, reducing the risk of engine damage and improving overall reliability.

Coordination with the Exhaust Gas Temperature Sensor (EGTS)

While the Exhaust Gas Temperature Sensor (EGTS) measures the temperature of the exhaust gases, Part 4954490 complements this by monitoring other critical temperatures within the engine. Together, these sensors provide a comprehensive temperature profile, enabling more accurate diagnostics and performance tuning. The data from Part 4954490 helps in calibrating the EGTS readings, ensuring that the exhaust temperature management system operates effectively.

Conclusion

In summary, the Cummins 4954490 Temperature Sensor is a fundamental component in the engine’s temperature management framework, ensuring that all interconnected systems—EEM, ECM, EMS, and EGTS—function harmoniously to maintain optimal engine performance and safety.