4935671
Temperature Switch
Cummins®

Introduction

The Cummins 4935671 Temperature Sensor Switch is a component designed to monitor and regulate engine temperature in commercial trucks. Its purpose is to ensure that the engine operates within safe temperature ranges, thereby contributing to the overall efficiency and reliability of the vehicle. This sensor switch plays a significant role in maintaining optimal engine performance and preventing potential damage due to overheating ¹.

Basic Concepts of Temperature Sensor Switch

A Temperature Sensor Switch is a device that detects the temperature of the engine coolant and sends this information to the vehicle’s electronic control unit (ECU). Based on the temperature readings, the ECU can make adjustments to the engine’s operation, such as activating the cooling fan or adjusting the fuel injection timing. This monitoring and regulation are vital for maintaining engine efficiency and preventing overheating, which can lead to severe engine damage ².

Purpose of the 4935671 Temperature Sensor Switch

The 4935671 Temperature Sensor Switch specifically functions within the engine cooling system of a truck. It interacts with various components to ensure that the engine temperature remains within the desired range. When the sensor detects that the engine is reaching a critical temperature, it signals the ECU to take corrective actions, such as increasing the cooling fan speed or adjusting the thermostat. This interaction helps in maintaining engine performance and longevity ³.

Key Features

The 4935671 Temperature Sensor Switch is designed with several key features that enhance its performance. It is constructed from durable materials to withstand the harsh conditions within an engine compartment. The sensor switch is engineered to provide accurate temperature readings, ensuring that the ECU receives reliable data for making adjustments. Additionally, its design allows for easy installation and maintenance, making it a practical choice for commercial truck applications.

Benefits

The benefits of using the 4935671 Temperature Sensor Switch include improved engine performance, enhanced durability, and reliable temperature monitoring. By ensuring that the engine operates within optimal temperature ranges, the sensor switch helps to prevent overheating and potential engine damage. This results in better overall engine efficiency and longevity. The durable construction of the sensor switch also contributes to its reliability and longevity in demanding commercial truck environments.

Installation Process

Installing the 4935671 Temperature Sensor Switch requires careful attention to detail to ensure proper function. The process involves locating the appropriate mounting point within the engine cooling system, typically near the thermostat housing or radiator. Using the necessary tools, the old sensor switch is removed, and the new one is installed in its place. It is important to follow the manufacturer’s instructions for correct placement and secure attachment to ensure accurate temperature readings and reliable operation.

Troubleshooting

Common issues with the 4935671 Temperature Sensor Switch may include inaccurate temperature readings or failure to activate the cooling system when needed. Troubleshooting steps involve checking the sensor switch for proper installation and secure connection. It is also important to inspect the wiring and connections for any signs of damage or corrosion. If the sensor switch is found to be faulty, replacement may be necessary to restore proper function.

Maintenance Tips

Regular maintenance of the 4935671 Temperature Sensor Switch is important for ensuring optimal performance and longevity. This includes periodic inspection of the sensor switch and its connections for any signs of wear or damage. Cleaning the sensor switch and its surrounding area can also help prevent buildup that may interfere with accurate temperature readings. Following the manufacturer’s recommended maintenance schedule will help ensure the sensor switch continues to operate effectively.

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 commercial truck industry, Cummins is known for its high-quality products and commitment to innovation. The company’s extensive product offerings and focus on customer satisfaction have established it as a trusted name in the industry.

Temperature Sensor Switch (Part 4935671) Compatibility with Cummins Engines

The Temperature Sensor Switch, identified by part number 4935671 and manufactured by Cummins, is a critical component in the engine management systems of various Cummins engines. This part is designed to monitor the engine’s temperature and relay this information to the engine control unit (ECU), ensuring optimal performance and preventing overheating.

B4.5 Engine Series

The B4.5 engine series is one of the many engine families where the Temperature Sensor Switch 4935671 is utilized. This engine series is known for its reliability and efficiency, making it a popular choice in various applications, including heavy-duty trucks and industrial machinery. The Temperature Sensor Switch in this series plays a pivotal role in maintaining the engine’s operational temperature within safe limits, thereby enhancing the engine’s longevity and performance.

Grouping of Engines

In the broader context of Cummins engine families, the Temperature Sensor Switch 4935671 is compatible with several other engine series beyond the B4.5. These include, but are not limited to, the C, K, and Q series. Each of these engine series has its unique characteristics and applications, but they all share the commonality of requiring precise temperature monitoring to function efficiently and reliably.

The integration of the Temperature Sensor Switch 4935671 across these engine series underscores its importance in the engine’s overall management system. By providing accurate temperature readings, this component helps in the efficient operation of the engine, ensuring that it runs smoothly and efficiently under various conditions.

Role of Part 4935671 Temperature Sensor Switch in Engine Systems

The part 4935671 temperature sensor switch is an integral component in the effective operation of engine systems, particularly in managing the coolant temperature. This sensor switch is designed to monitor the temperature of the engine coolant, providing essential data to the engine control unit (ECU).

When the coolant temperature reaches a specific threshold, the temperature sensor switch sends a signal to the ECU. This signal prompts the ECU to adjust various engine parameters to maintain optimal performance and prevent overheating. The switch interacts with the coolant temperature sensor to ensure accurate temperature readings are consistently provided.

In addition to its primary function, the temperature sensor switch also plays a role in activating the engine’s cooling fan. When the coolant temperature exceeds a certain point, the switch signals the fan to turn on, helping to dissipate heat and maintain a stable engine temperature.

Furthermore, the temperature sensor switch is involved in the operation of the thermostat. By providing temperature data, the switch helps the thermostat regulate the flow of coolant through the engine, ensuring that the engine reaches and maintains its optimal operating temperature.

Overall, the part 4935671 temperature sensor switch is a key component in the engine’s thermal management system, working in conjunction with the ECU, cooling fan, and thermostat to ensure the engine operates efficiently and reliably.

Conclusion

The Cummins 4935671 Temperature Sensor Switch is a vital component in the engine management system of commercial trucks. By accurately monitoring and regulating engine temperature, this part ensures optimal engine performance, prevents overheating, and contributes to the overall efficiency and reliability of the vehicle. Its compatibility with various Cummins engine series underscores its importance in maintaining engine longevity and performance.