3408540
Temperature Sensor
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$869.95 $1,035.24

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Cummins 3408540 Temperature Sensor is a specialized component designed for use in commercial trucks. Its purpose is to monitor the temperature within the engine system, providing data that helps maintain optimal operating conditions. This sensor is significant in ensuring the engine runs efficiently and reliably, contributing to the overall performance and longevity of the vehicle.

Basic Concepts of Temperature Sensors

Temperature sensors are devices that measure the temperature of their surroundings and convert this measurement into an electrical signal. They are widely used in automotive systems to monitor various components, such as the engine, transmission, and exhaust. These sensors help in maintaining the optimal operating temperature, which is vital for the efficient functioning of the vehicle 1.

Role of the 3408540 Temperature Sensor in Truck Operation

The Cummins 3408540 Temperature Sensor plays a specific role in monitoring and maintaining optimal operating conditions within a truck’s engine system. It provides real-time temperature data to the engine management system, allowing for precise control of the engine’s operating parameters. This data is used to adjust fuel injection, ignition timing, and other critical functions, ensuring the engine operates within its designed temperature range 2.

Key Features of the 3408540 Temperature Sensor

The Cummins 3408540 Temperature Sensor is designed with several features that enhance its performance and reliability. It is constructed using high-quality materials that can withstand the harsh conditions within a truck’s engine compartment. The sensor’s technological specifications include a robust design that ensures accurate temperature readings under varying operating conditions 3.

Benefits of Using the 3408540 Temperature Sensor

Incorporating the Cummins 3408540 Temperature Sensor into truck systems offers several advantages. It contributes to improved engine performance by ensuring the engine operates within its optimal temperature range. This, in turn, enhances fuel efficiency and extends the longevity of engine components. The sensor’s accurate temperature readings help prevent overheating and other temperature-related issues that can lead to engine damage.

Installation and Integration

Installing the Cummins 3408540 Temperature Sensor involves integrating it into the truck’s engine management system. This process includes connecting the sensor to the appropriate wiring harness and configuring the engine management software to recognize and utilize the sensor’s data. Proper installation ensures that the sensor functions correctly and provides accurate temperature readings.

Troubleshooting and Maintenance

Common issues that may arise with the Cummins 3408540 Temperature Sensor include inaccurate readings, sensor failure, and wiring problems. Diagnostic procedures involve checking the sensor’s connections, testing its output signal, and verifying the engine management system’s configuration. Regular maintenance, such as inspecting the sensor and its wiring for damage, helps ensure its continued accurate operation.

Impact on Engine Performance and Efficiency

The accurate temperature readings provided by the Cummins 3408540 Temperature Sensor contribute significantly to overall engine performance and fuel efficiency. By ensuring the engine operates within its optimal temperature range, the sensor helps maintain efficient combustion, reduce emissions, and enhance the engine’s reliability. This results in better fuel economy and longer engine life.

Safety and Regulatory Compliance

The Cummins 3408540 Temperature Sensor plays a role in helping trucks meet safety standards and regulatory requirements regarding engine operation and emissions. Accurate temperature monitoring ensures the engine operates within safe parameters, reducing the risk of overheating and related failures. This compliance with regulations helps maintain the vehicle’s safety and environmental performance.

Cummins: A Brief Overview

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 history of innovation and a commitment to quality, Cummins has established itself as a trusted name in the automotive industry. The company’s product range includes engines and components designed to meet the demanding requirements of commercial vehicles.

Temperature Sensor 3408540 in Cummins Engines

The Temperature Sensor 3408540, manufactured by Cummins, is a crucial component in maintaining optimal engine performance across various Cummins engine models. This sensor is integral to the engine’s management system, ensuring that the engine operates within safe temperature parameters.

QSK45 Engine

In the QSK45 engine, the Temperature Sensor 3408540 plays a pivotal role in monitoring the engine’s temperature. This engine, known for its robust performance, relies on precise temperature readings to prevent overheating and ensure efficient operation. The sensor’s placement and functionality are designed to provide real-time data to the engine control unit (ECU), allowing for immediate adjustments to maintain optimal performance.

CM500 Engine

Similarly, in the CM500 engine, the Temperature Sensor 3408540 is essential for temperature regulation. This engine, often used in heavy-duty applications, demands reliable temperature monitoring to prevent damage and ensure longevity. The sensor’s integration into the CM500’s system ensures that the engine’s temperature is consistently monitored, providing critical data to the ECU for making necessary adjustments.

Grouping of Engines

Both the QSK45 and CM500 engines benefit from the precise temperature monitoring provided by the 3408540 sensor. These engines, while differing in specific applications and performance characteristics, share a common need for accurate temperature data. The sensor’s role in these engines underscores its importance in maintaining engine health and performance.

Role of Part 3408540 Temperature Sensor in Engine Systems

The temperature sensor, part 3408540, is integral to the efficient operation of various engine systems. It provides essential data that allows these systems to function optimally under varying conditions.

Integration with Electrical Accessories

The temperature sensor is a key component in the management of electrical accessories within an engine system. By monitoring the engine’s temperature, it ensures that accessories such as the radiator fan, air conditioning system, and heating elements operate at the correct times. For instance, when the engine temperature rises above a certain threshold, the sensor signals the radiator fan to turn on, helping to cool the engine and prevent overheating. Similarly, it manages the air conditioning system to maintain a comfortable cabin temperature without overburdening the engine.

Enhancing Fuel Efficiency

In conjunction with the engine control unit (ECU), the temperature sensor plays a significant role in fuel efficiency. By providing real-time temperature data, it allows the ECU to adjust the fuel injection timing and air-fuel mixture. This ensures that the engine operates within its optimal temperature range, leading to more efficient combustion and reduced fuel consumption.

Supporting Emission Control Systems

The temperature sensor is also vital for the proper functioning of emission control systems. It helps in the precise control of the exhaust gas recirculation (EGR) system by providing temperature data that the ECU uses to determine the optimal recirculation rate. This not only reduces emissions but also enhances engine performance.

Aiding in Engine Longevity

By continuously monitoring engine temperature, the sensor helps in preventing scenarios that could lead to engine damage. For example, if the engine temperature drops too low, the sensor can trigger systems that help warm the engine more quickly, reducing wear and tear on engine components. Conversely, if the temperature rises too high, it can activate cooling systems to protect the engine from overheating.

Facilitating Diagnostic Processes

The data provided by the temperature sensor is invaluable during diagnostic processes. It allows mechanics to monitor engine health in real-time, identify potential issues before they become serious problems, and make informed decisions about maintenance and repairs.

Conclusion

In summary, the Cummins 3408540 Temperature Sensor is a fundamental component that enhances the performance, efficiency, and longevity of engine systems by providing accurate and timely temperature data. Its integration into various engine systems ensures optimal operation under varying conditions, contributing to improved fuel efficiency, reduced emissions, and enhanced engine reliability.


  1. Eret, A. (2024). Dynamic and Fatigue Assessment of Heavy-Duty Engine Valves. Springer Nature.

  2. Van Gelder, K. T. (2018). Fundamentals of Automotive Technology Principles and Practice. Jones Bartlett Learning.

  3. Wang, Y. (2007). Introduction to Engine Valvetrains. SAE International.

SPECIFICATIONS

Service Part Topic
04T19-2
Notes
Exhaust gas.
Package Dimensions
4.8 x 4.4 x 4.4 in
Weight
0.434 lbs
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.