4988547
Temperature Sensor
Cummins®

Introduction

The Cummins 4988547 Temperature Sensor is a specialized component designed for use in commercial trucks. Its primary function is to monitor the engine’s temperature, providing critical data that helps maintain optimal operating conditions. This sensor plays a significant role in ensuring the engine runs efficiently and avoids overheating, which can lead to performance issues and potential damage.

Basic Concepts of Temperature Sensors

Temperature sensors are devices that measure temperature changes by utilizing various physical properties, such as electrical resistance, voltage, or current. In automotive systems, these sensors are vital for monitoring and regulating the temperature of various components, including the engine, transmission, and exhaust systems. They provide real-time data to the engine control unit (ECU), allowing for precise adjustments to maintain performance and efficiency ¹.

Role of the 4988547 Temperature Sensor in Truck Operation

The 4988547 Temperature Sensor specifically monitors the engine’s temperature in commercial trucks. By providing accurate temperature readings, it enables the ECU to make necessary adjustments to fuel injection, ignition timing, and coolant flow. This ensures the engine operates within its optimal temperature range, enhancing performance, fuel efficiency, and longevity. The sensor’s role in preventing overheating is particularly important, as excessive heat can cause severe engine damage ².

Key Features of the 4988547 Temperature Sensor

The 4988547 Temperature Sensor is designed with several features that enhance its reliability and accuracy. It is constructed using high-quality materials that can withstand the harsh conditions present in commercial truck engines. The sensor incorporates advanced technology to provide precise temperature readings, ensuring the ECU receives accurate data for effective engine management. Its robust design also contributes to its durability, making it a reliable component in demanding environments.

Benefits of Using the 4988547 Temperature Sensor

Incorporating the 4988547 Temperature Sensor into truck systems offers several advantages. It contributes to improved engine efficiency by ensuring the engine operates within its optimal temperature range. This can lead to better fuel economy and reduced emissions. The sensor also enhances the engine’s durability by preventing overheating, which can cause damage to critical components. Overall, the use of this sensor contributes to the truck’s performance, reliability, and longevity.

Installation and Integration

Installing the 4988547 Temperature Sensor involves placing it in a location where it can accurately measure the engine’s temperature, typically near the cylinder head or within the coolant passages. It is then connected to the truck’s engine management system, allowing it to transmit temperature data to the ECU. Proper installation requires following manufacturer guidelines to ensure accurate readings and effective integration into the engine management system.

Troubleshooting and Maintenance

Common issues with temperature sensors include inaccurate readings, sensor failure, and connection problems. Diagnostic procedures involve checking the sensor’s output against known good values, inspecting connections for corrosion or damage, and ensuring the sensor is properly installed. Regular maintenance, such as cleaning the sensor and its connections, can help prevent issues and ensure optimal performance. If a sensor fails, it should be replaced promptly to maintain engine efficiency and prevent potential damage.

Cummins: A Brief 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 extensive product range includes engines, powertrains, and aftermarket parts, all designed to meet the demanding requirements of commercial transportation. The 4988547 Temperature Sensor is a testament to Cummins’ commitment to providing high-quality, reliable components for the trucking industry.

Compatibility with Cummins Engines

The Temperature Sensor part number 4988547, manufactured by Cummins, is designed to seamlessly integrate with a variety of Cummins engine models. This sensor plays a crucial role in monitoring the engine’s temperature, ensuring optimal performance and preventing potential overheating issues.

Cummins 6B5.9 Engine

The 6B5.9 engine is one of the models that benefit from the precise temperature monitoring provided by the 4988547 sensor. This engine is known for its reliability and efficiency, and the temperature sensor ensures that it operates within safe thermal limits. The sensor’s placement and design are tailored to fit the specific architecture of the 6B5.9 engine, providing accurate readings that are critical for the engine control unit (ECU) to make necessary adjustments.

Other Cummins Engines

While the 6B5.9 engine is highlighted, the 4988547 temperature sensor is also compatible with other Cummins engines. Cummins engines are renowned for their durability and performance across various applications, from heavy-duty trucks to industrial machinery. The sensor’s universal design allows it to fit into different engine configurations, ensuring that it can effectively monitor and report temperature data across the Cummins engine lineup.

Installation and Functionality

The installation of the 4988547 temperature sensor is straightforward, designed to fit snugly into the engine’s designated sensor port. Its robust construction ensures it can withstand the harsh conditions within the engine compartment. Once installed, the sensor continuously monitors the engine’s temperature, sending real-time data to the ECU. This data is crucial for maintaining engine efficiency and preventing damage from overheating.

Importance of the Temperature Sensor

The role of the temperature sensor in engine management cannot be overstated. It is a vital component that ensures the engine operates within its optimal temperature range. By providing accurate temperature readings, the sensor helps in:

• Preventing engine overheating
• Enhancing fuel efficiency
• Reducing wear and tear on engine components
• Improving overall engine performance

The 4988547 temperature sensor is a testament to Cummins’ commitment to quality and reliability, ensuring that their engines run smoothly and efficiently.

Role of Part 4988547 Temperature Sensor in Engine Systems

The temperature sensor, part 4988547, is integral to the operation of several engine systems, ensuring optimal performance and efficiency.

Air Intake (AID) System

In the air intake system, the temperature sensor monitors the temperature of the incoming air. This data is essential for the engine control unit (ECU) to adjust the air-fuel mixture. Accurate temperature readings allow the ECU to optimize combustion, enhancing fuel efficiency and reducing emissions.

Air Heater Starting System

For the air heater starting system, the temperature sensor plays a significant role during cold starts. It measures the temperature of the intake air and provides this information to the ECU. The ECU uses this data to determine the necessary duration for the air heater to operate, ensuring the engine reaches optimal operating temperature more quickly. This not only improves starting performance in cold conditions but also reduces wear on engine components by minimizing the time spent in a cold, less efficient state.

Overall, the temperature sensor, part 4988547, ensures that both the air intake and air heater starting systems operate within their designed parameters, contributing to the engine’s overall reliability and performance.

Conclusion

The Cummins 4988547 Temperature Sensor is a critical component in the maintenance and operation of commercial truck engines. By providing accurate temperature readings, it ensures the engine operates within its optimal temperature range, enhancing performance, fuel efficiency, and longevity. Its robust design and compatibility with various Cummins engines make it a reliable and essential part of the engine management system.