4954491
Temperature Sensor
Cummins®

Introduction

The Cummins 4954491 Temperature Sensor is designed to monitor and regulate engine temperature in commercial trucks. It ensures the engine operates within optimal temperature ranges, contributing to performance and longevity.

Basic Concepts of Temperature Sensors

Temperature sensors measure temperature changes and convert them into electrical signals. They are used in automotive systems to monitor various components, providing real-time data to the vehicle’s management system for efficient operation ¹.

Purpose of the Cummins 4954491 Temperature Sensor

This Cummins part is designed to monitor engine coolant temperature in heavy-duty trucks. It provides accurate readings to the engine management system, allowing adjustments to fuel injection, ignition timing, and other parameters for efficient and reliable engine operation ².

Key Features

The 4954491 features a robust design with high-quality materials to withstand heavy-duty truck environments. It includes a durable housing and precision-engineered sensing element for accurate temperature readings, incorporating advanced technological specifications for enhanced performance and reliability.

Benefits of Using the Cummins 4954491 Temperature Sensor

Using this part contributes to improved engine performance by ensuring operation within optimal temperature ranges. It enhances fuel efficiency and reliability by preventing overheating and temperature-related issues that can affect engine health ³.

Installation and Integration

Proper installation of this part is crucial for effective operation. It should be installed according to the manufacturer’s guidelines to ensure secure placement and correct alignment with the engine’s coolant system. Integration with the truck’s engine management system is important for accurate data transmission and system adjustments.

Troubleshooting Common Issues

Common problems with temperature sensors include inaccurate readings and sensor failure. Troubleshooting methods may involve checking the sensor’s connections, testing with a multimeter, and ensuring there are no obstructions or leaks in the coolant system that could affect performance.

Maintenance Tips

Regular maintenance of this part is important for longevity and optimal performance. This includes periodic inspection of the sensor and its connections, ensuring the coolant system is free of contaminants, and replacing the sensor if it shows signs of wear or failure.

Role in Engine Management Systems

This part interacts with the engine management system by providing real-time temperature data. This data is used by the system to make adjustments to various engine parameters, ensuring efficient operation within safe temperature limits.

Impact on Fuel Efficiency and Emissions

Accurate temperature readings from this part contribute to better fuel efficiency and reduced emissions. By ensuring the engine operates within optimal temperature ranges, the sensor helps the engine management system make precise adjustments that can lead to more efficient combustion and lower emissions.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emission solutions. With a strong reputation in the automotive and heavy-duty truck industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction.

Temperature Sensor 4954491 Compatibility with Cummins Engines

The Temperature Sensor part number 4954491, manufactured by Cummins, is designed to be compatible with a variety of Cummins engines. This sensor plays a role in monitoring and maintaining the engine’s operational temperature, ensuring optimal performance and preventing overheating.

Compatibility with QSK19 Engines

The Temperature Sensor 4954491 is suitable for the following QSK19 engine configurations:

• QSK19 CM850 MCRS
• QSK19 G CM2358 K110

Compatibility with QSK50 Engines

This temperature sensor is also compatible with the following QSK50 engine models:

• QSK50 CM2150 K107
• QSK50 CM2150 MCRS

Compatibility with QSK60 Engines

For the QSK60 engine series, the Temperature Sensor 4954491 fits with:

• QSK60 CM850 MCRS
• QSK60 G CM2358 K110

Compatibility with QSK95 Engines

Lastly, the sensor is also compatible with the following QSK95 engine variants:

• QSK95 CM2350 K111
• QSK95 CM2350 K113

These configurations ensure that the Temperature Sensor 4954491 can be effectively used across a range of Cummins engines, providing reliable temperature monitoring and contributing to the overall efficiency and longevity of the engine.

Role of Part 4954491 Temperature Sensor in Engine Systems

The 4954491 temperature sensor is integral to the precise monitoring and regulation of various engine parameters. This sensor is strategically positioned to interface with the engine control module (ECM), providing real-time data on engine exhaust temperature and exhaust gas temperature.

By continuously feeding the ECM with accurate temperature readings, the sensor enables the ECM to make informed adjustments to fuel injection timing, air-fuel ratio, and other critical engine operations. This ensures optimal engine performance, efficiency, and emissions control.

Additionally, the sensor’s data is vital for the engine’s thermal management system. It helps in preventing overheating by alerting the ECM to any abnormal temperature spikes, allowing for timely intervention. This proactive monitoring is essential for maintaining engine health and longevity.

Conclusion

The Cummins 4954491 Temperature Sensor plays a significant role in enhancing engine performance, ensuring efficient operation, and safeguarding against potential damage due to thermal stress. Its accurate temperature readings contribute to better fuel efficiency, reduced emissions, and overall engine reliability.