4974035
Thermostat Housing
Cummins®

Introduction

The Cummins 4974035 Thermostat Housing is a component designed for use in commercial trucks equipped with Cummins engines. Its purpose is to house the thermostat, which regulates the flow of coolant through the engine. This regulation is significant for maintaining optimal engine temperature, ensuring efficient operation, and prolonging the engine’s lifespan ¹.

Basic Concepts of Thermostat Housing

A thermostat housing is a part of the engine cooling system that encases the thermostat. The thermostat, in turn, controls the flow of coolant based on the engine’s temperature. When the engine is cold, the thermostat remains closed, preventing coolant flow to the radiator. As the engine warms up, the thermostat opens, allowing coolant to circulate and maintain an optimal operating temperature ².

Purpose of the Thermostat Housing

The Thermostat Housing plays a role in the operation of a truck by regulating coolant flow and maintaining engine temperature. It ensures that the engine reaches its optimal operating temperature quickly and maintains it under various driving conditions. This regulation is vital for engine efficiency, fuel economy, and overall performance ³.

Key Features

The 4974035 is designed with several features that enhance its performance and durability. It is constructed from high-quality materials to withstand the pressures and temperatures of the engine cooling system. The housing is engineered to provide a secure fit for the thermostat, ensuring reliable operation. Additionally, it may include features such as gaskets or seals to prevent leaks and ensure a tight connection within the cooling system.

Benefits

Using the 4974035 offers several benefits. It contributes to improved engine efficiency by ensuring the engine operates at its optimal temperature. The durable construction of the housing enhances its longevity, reducing the need for frequent replacements. Moreover, its reliable performance under various operating conditions helps maintain engine health and performance.

Installation Process

Installing the 4974035 requires careful attention to detail. The process involves removing the old housing, if present, and ensuring the mating surfaces are clean and free of debris. The new housing should be positioned correctly, and any gaskets or seals should be installed according to the manufacturer’s instructions. Tightening the housing to the specified torque is crucial to ensure a secure fit and prevent leaks. Tools required may include a socket wrench and a torque wrench.

Common Issues and Troubleshooting

Common issues with the 4974035 may include leaks or malfunctions of the thermostat. Leaks can often be traced to damaged gaskets or seals, which may require replacement. Thermostat malfunctions can lead to overheating or insufficient engine warming, necessitating thermostat inspection or replacement. Regular checks and maintenance can help identify and resolve these issues promptly.

Maintenance Tips

Routine maintenance of the 4974035 is important for ensuring optimal performance and longevity. Inspection intervals should be observed to check for signs of wear, leaks, or damage. Replacement guidelines should be followed to ensure the housing and thermostat are in good working condition. Keeping the cooling system clean and free of contaminants also contributes to the efficient operation of the thermostat housing.

Cummins 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 strong reputation in the commercial truck industry, Cummins is known for its high-quality products and innovative technologies that enhance engine performance, efficiency, and reliability.

Thermostat Housing for Cummins Engines

The Thermostat Housing part number 4974035, manufactured by Cummins, is a component in the cooling system of various engine models. This part is designed to fit seamlessly with the following Cummins engine models:

ISM CM570 Engines

For the ISM CM570 engines, the thermostat housing is engineered to maintain optimal engine temperature by regulating the flow of coolant. It ensures that the engine operates within its ideal temperature range, which is crucial for performance and longevity.

ISM11 CM876 SN Engines

In the ISM11 CM876 SN engines, the thermostat housing plays a similar role in managing the engine’s temperature. This part is specifically designed to fit the unique configuration of these engines, ensuring efficient coolant flow and temperature regulation.

Compatibility and Installation

The thermostat housing part number 4974035 is designed to be compatible with both the ISM CM570 and ISM11 CM876 SN engines. Its installation is straightforward, typically involving the following steps:

1. Drain the Coolant: Before removing the old thermostat housing, it is essential to drain the coolant from the engine to prevent spills and contamination.
2. Remove the Old Housing: Detach the old thermostat housing from the engine block, ensuring that all gaskets and seals are carefully removed.
3. Install the New Housing: Position the new thermostat housing in place, ensuring that it aligns correctly with the engine block. Secure it with the appropriate fasteners.
4. Reconnect the Coolant System: Reattach any coolant hoses and reconnect the coolant system, ensuring all connections are tight and secure.
5. Refill the Coolant: Once the installation is complete, refill the engine with the appropriate coolant mixture.

Importance of Proper Installation

Proper installation of the thermostat housing is crucial for maintaining the engine’s performance and preventing overheating. Any misalignment or improper sealing can lead to coolant leaks, engine overheating, and potential engine damage. Therefore, it is recommended to follow the manufacturer’s guidelines and use genuine Cummins parts for replacement.

Role of Part 4974035 Thermostat Housing in Engine Systems

The thermostat housing, identified by part number 4974035, is an integral component in the thermal management system of an engine. It serves as the enclosure for the thermostat, which regulates the flow of coolant to the engine.

When the engine is cold, the thermostat remains closed, preventing coolant from flowing through the radiator. This allows the engine to reach its optimal operating temperature more quickly. Once the engine warms up, the thermostat opens, allowing coolant to circulate through the engine and radiator, maintaining a consistent temperature.

The thermostat housing is connected to the engine block and the upper radiator hose. It ensures a secure fit for the thermostat and provides a pathway for coolant to travel from the engine to the radiator. The housing is also connected to the intake manifold, allowing coolant to circulate through the engine’s cylinders and cylinder head.

In addition to its role in thermal management, the thermostat housing also helps to reduce engine noise and vibration. It is typically made of durable materials such as aluminum or plastic, which can withstand the high temperatures and pressures of the engine compartment.

Overall, the thermostat housing plays a significant role in maintaining the proper functioning of the engine’s cooling system. Its connections to the engine block, upper radiator hose, and intake manifold ensure efficient coolant flow and temperature regulation, contributing to the engine’s overall performance and longevity.

Conclusion

The Cummins 4974035 Thermostat Housing is a vital component in the engine cooling system of commercial trucks. It ensures optimal engine temperature, enhances efficiency, and prolongs engine lifespan. Proper installation, regular maintenance, and understanding its role in thermal management are essential for the overall performance and longevity of the engine.