4959844
Thermostat Housing
Cummins®

Introduction

The Cummins 4959844 Thermostat Housing is a component designed for use in heavy-duty trucks. It plays a role in the engine’s cooling system by ensuring that the engine operates within optimal temperature ranges. This housing is integral to maintaining the efficiency and reliability of the engine, contributing to the overall performance and longevity of the vehicle.

Basic Concepts of Thermostat Housing

A thermostat housing is a part of the engine cooling system that encases the thermostat. Its primary function is to regulate the flow of coolant through the engine. When the engine is cold, the thermostat remains closed, preventing coolant from circulating through the radiator. As the engine warms up, the thermostat opens, allowing coolant to flow and maintain a consistent operating temperature. The housing also provides a secure environment for the thermostat and facilitates the connection to coolant passages ¹.

Purpose of the 4959844 Thermostat Housing

The Cummins 4959844 Thermostat Housing is designed to play a role in the operation of heavy-duty trucks by maintaining optimal engine temperature. It ensures that the engine reaches and maintains its operating temperature efficiently, which is important for fuel efficiency, emissions control, and overall engine performance. By regulating the coolant flow, this housing helps prevent overheating and ensures that the engine operates within its designed parameters.

Key Features

The Cummins 4959844 Thermostat Housing is characterized by several key features. It is constructed from durable materials to withstand the harsh conditions of heavy-duty truck operation. The housing is precisely engineered to fit specific Cummins engine models, ensuring a secure and reliable connection. Its design allows for easy installation and maintenance, contributing to the overall efficiency of engine management.

Benefits

Using the Cummins 4959844 Thermostat Housing offers several benefits. It contributes to improved engine efficiency by ensuring that the engine operates at the optimal temperature. This housing provides reliable temperature regulation, which is vital for the longevity of the engine and the vehicle. Additionally, its durable construction ensures long-term performance, reducing the need for frequent replacements.

Installation Considerations

Proper installation of the Cummins 4959844 Thermostat Housing is important for its effective function. The process involves using the necessary tools to remove the old housing and install the new one. Careful attention should be paid to ensuring a secure fit to prevent leaks and ensure efficient coolant flow. Following manufacturer guidelines for torque specifications and alignment is recommended to achieve a proper installation.

Common Issues and Troubleshooting

Thermostat housings can encounter issues such as leaks or malfunctions. Common signs of problems include coolant leaks, engine overheating, or inconsistent temperature readings. Troubleshooting may involve inspecting the housing for cracks or damage, ensuring the thermostat is functioning correctly, and checking for proper installation. Addressing these issues promptly can help maintain engine efficiency and prevent further damage.

Maintenance Tips

To ensure the longevity and optimal performance of the Cummins 4959844 Thermostat Housing, regular maintenance is recommended. This includes periodic inspections for signs of wear or damage, cleaning the housing to remove any buildup, and following manufacturer recommendations for replacement intervals. Proper maintenance helps ensure that the housing continues to function effectively, contributing to the overall reliability of the engine.

Cummins 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 and innovation in the heavy-duty truck industry. The company offers a wide range of products designed to meet the demanding requirements of commercial vehicles, ensuring reliable performance and efficiency.

Thermostat Housing Fitment for Cummins Engines

The thermostat housing part number 4959844, manufactured by Cummins, is designed to fit a variety of Cummins engines. This part is crucial for maintaining the engine’s optimal operating temperature by regulating the flow of coolant. Here is a detailed description of its compatibility with the specified engines:

• ISX12/ISX11.9 CM2250: The thermostat housing part 4959844 is compatible with the ISX12 and ISX11.9 CM2250 engines. These engines are known for their robust performance and reliability, making this part a suitable fit for maintaining their efficiency.

• ISZ13 CM2150 Z105: This part also fits the ISZ13 CM2150 Z105 engine. The ISZ13 is designed for heavy-duty applications, and the thermostat housing ensures that the engine operates within its optimal temperature range.

• QSZ13 CM2150 Z101 and QSZ13 CM2150 Z102: Both the QSZ13 CM2150 Z101 and QSZ13 CM2150 Z102 engines are compatible with the thermostat housing part 4959844. These engines are part of the QSZ series, which is engineered for high-performance and durability in demanding conditions.

• Z13 Z108G: The thermostat housing part 4959844 is also suitable for the Z13 Z108G engine. This engine is designed for specific applications requiring high power output and reliability, and the thermostat housing plays a vital role in maintaining its performance.

Each of these engines benefits from the precise fit and functionality of the thermostat housing part 4959844, ensuring that the engine’s temperature is regulated effectively. This compatibility highlights the versatility and importance of this part in maintaining the performance and longevity of Cummins engines.

Conclusion

The Cummins 4959844 Thermostat Housing is a critical component in the cooling system of heavy-duty trucks. Its role in regulating engine temperature ensures optimal performance, fuel efficiency, and longevity of the engine. Proper installation, regular maintenance, and prompt troubleshooting of common issues are essential to maximize the benefits of this part. With its compatibility across various Cummins engines, the 4959844 Thermostat Housing demonstrates its versatility and importance in the heavy-duty truck industry.