4967783
Thermostat
Cummins®

The Cummins 4967783 Thermostat is a component designed for use in commercial trucks, playing a significant role in maintaining optimal engine operating temperatures. Its proper function is vital for the efficient and reliable operation of the vehicle.

Basic Concepts of a Thermostat

A thermostat is a device that regulates the temperature within an engine cooling system. It operates by opening and closing in response to the temperature of the engine coolant. When the engine is cold, the thermostat remains closed, preventing coolant from flowing through the radiator. As the engine warms up, the thermostat gradually opens, allowing coolant to circulate and maintain a consistent operating temperature ¹.

Purpose of the Cummins 4967783 Thermostat

This Cummins part is designed to regulate the engine temperature in commercial trucks. By controlling the flow of coolant through the engine and radiator, it ensures that the engine reaches and maintains its optimal operating temperature. This regulation is important for engine efficiency, reducing wear, and ensuring reliable performance under various driving conditions ².

Key Features

The Cummins 4967783 Thermostat features a robust design that includes high-quality materials to withstand the demanding conditions of commercial truck operations. Its construction ensures durability and reliable performance. Additionally, the thermostat is engineered with precision to provide accurate temperature control, enhancing the overall efficiency of the engine cooling system.

Benefits

Using the Cummins 4967783 Thermostat offers several benefits. 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. Additionally, the thermostat’s reliable performance helps extend the longevity of the engine and cooling system components, reducing the need for frequent replacements and repairs ³.

Installation Process

Installing the Cummins 4967783 Thermostat requires careful attention to detail to ensure proper function. The process involves draining the coolant system, removing the old thermostat, cleaning the mating surfaces, and installing the new thermostat with the appropriate gasket. It is important to follow the manufacturer’s instructions and use the recommended tools to ensure a secure and proper installation.

Maintenance Tips

To ensure the Cummins 4967783 Thermostat operates effectively, regular maintenance is recommended. This includes periodic checks of the thermostat for signs of wear or malfunction, ensuring the cooling system is free of contaminants, and replacing the thermostat according to the manufacturer’s guidelines or as part of routine engine maintenance. Proper maintenance helps maintain engine efficiency and reliability.

Troubleshooting Common Issues

Common issues with thermostats can include failure to open or close properly, leading to overheating or insufficient engine warm-up. Diagnosing these issues involves checking the thermostat’s operation, inspecting for blockages in the cooling system, and ensuring the thermostat is installed correctly. Addressing these problems promptly can prevent more severe engine damage and ensure continued reliable operation.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions solutions. With a strong reputation in the commercial truck industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company’s extensive product range and technical expertise make it a trusted partner for commercial vehicle operators worldwide.

Compatibility of Thermostat Part 4967783 with Cummins Engines

This part, manufactured by Cummins, is designed to fit seamlessly with a range of Cummins engines. It is crucial for maintaining optimal engine temperature, ensuring efficient operation and longevity of the engine.

QSK19 Series Engines

The QSK19 CM2350 K105 and QSK19 CM850 MCRS engines are part of the QSK19 series, which are known for their robust performance and reliability. The thermostat part 4967783 is engineered to integrate perfectly with these engines, providing precise temperature control. This ensures that the engine operates within its optimal temperature range, preventing overheating and maintaining efficiency.

QSK95 Series Engines

The QSK95 CM2350 K111 and QSK95 CM2350 K113 engines belong to the QSK95 series, which are designed for heavy-duty applications. The thermostat part 4967783 is compatible with these engines, ensuring that they maintain the correct temperature even under heavy loads. This compatibility is essential for the longevity and performance of these engines, as it helps to prevent thermal stress and ensures smooth operation.

Grouping of Engines

When considering the compatibility of the thermostat part 4967783, it is useful to group the engines based on their series and model specifications. The QSK19 series engines (QSK19 CM2350 K105 and QSK19 CM850 MCRS) and the QSK95 series engines (QSK95 CM2350 K111 and QSK95 CM2350 K113) share similar design and operational characteristics, making the thermostat part 4967783 a versatile choice for these engines.

This compatibility ensures that the thermostat part 4967783 can be used across different models within the same series, providing a standardized solution for temperature control in Cummins engines.

Role of Part 4967783 Thermostat in Engine Systems

The part 4967783 thermostat is an essential component within the engine’s cooling system, working in conjunction with several other parts to maintain optimal engine temperature.

Interaction with Thermostat Housing

The thermostat is housed within the thermostat housing, a component designed to contain the thermostat and facilitate its operation. The housing provides a secure environment for the thermostat, shielding it from external contaminants and ensuring it functions correctly. The housing is typically made from durable materials to withstand the pressures and temperatures of the cooling system.

Integration with Thermostat Top Level Assembly Housing

In more complex engine systems, the thermostat may be part of a top-level assembly housing. This assembly often includes additional components such as sensors and gaskets, which work together to monitor and regulate engine temperature more precisely. The top-level assembly housing allows for easier installation and replacement of the thermostat, reducing downtime during maintenance.

Function within the Arrangement

The arrangement of components around the thermostat is designed to ensure efficient heat exchange. Coolant flows from the engine block into the thermostat housing. As the engine warms up, the thermostat gradually opens, allowing coolant to flow through the radiator where it is cooled before returning to the engine. This cycle helps maintain a consistent operating temperature, enhancing engine performance and longevity.

Overall System Contribution

By controlling the flow of coolant, the thermostat plays a significant role in the engine’s thermal management. It ensures that the engine reaches its optimal operating temperature quickly and maintains that temperature under varying conditions. This not only improves engine efficiency but also reduces wear and tear on engine components.

Conclusion

The Cummins 4967783 Thermostat is a vital component in the engine cooling system of commercial trucks. Its role in regulating engine temperature ensures efficient operation, reduces wear, and enhances reliability. Proper installation, maintenance, and troubleshooting are essential to maximize the benefits of this part and ensure the longevity of the engine and cooling system.