3104698
Thermostat Housing
Cummins®

Introduction

The Cummins 3104698 Thermostat Housing is a component designed for use in heavy-duty truck 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 operating temperatures, which in turn affects engine performance and longevity ¹.

Function and Operation

The thermostat housing operates as a part of the engine cooling system. It encases the thermostat, which opens and closes to control coolant flow based on engine temperature. When the engine is cold, the thermostat remains closed, restricting coolant flow to allow the engine to warm up quickly. As the engine temperature rises, the thermostat opens, allowing coolant to circulate through the engine and radiator, thereby dissipating heat and maintaining a stable operating temperature ².

Key Features

This Cummins part is constructed from durable materials designed to withstand the high temperatures and pressures of heavy-duty engine environments. Its design includes precise fittings and seals to ensure a secure connection to the engine block and radiator hoses. The housing is engineered to provide a reliable seal around the thermostat, preventing coolant leaks and ensuring efficient coolant flow.

Role in Engine Performance

The thermostat housing contributes to engine performance by ensuring the thermostat functions correctly within the cooling system. By maintaining optimal engine temperature, the housing helps to ensure that the engine operates efficiently. Proper temperature regulation prevents overheating, which can lead to engine damage, and ensures that the engine reaches its optimal operating temperature quickly, enhancing performance and fuel efficiency ³.

Benefits

The Cummins 3104698 Thermostat Housing offers several advantages. It provides improved engine efficiency through reliable temperature regulation. Its durable construction ensures longevity under heavy-duty conditions, reducing the need for frequent replacements. The housing’s design also contributes to the overall reliability of the engine cooling system, helping to prevent coolant leaks and system malfunctions.

Installation Considerations

Proper installation of the thermostat housing is vital for its effective operation. It should be securely fastened to the engine block to ensure a tight seal. Care must be taken to align the housing correctly with the thermostat and coolant passages. Using the manufacturer’s recommended gaskets and seals during installation helps to ensure a leak-free connection.

Common Issues and Troubleshooting

Typical problems with thermostat housings include leaks and malfunctions, often due to wear, corrosion, or improper installation. Troubleshooting steps may involve inspecting the housing and seals for damage, ensuring the thermostat is seated correctly, and checking for proper alignment and secure fastening. Regular maintenance and inspection can help identify and address issues before they lead to more significant problems.

Maintenance Tips

Routine maintenance of the thermostat housing involves checking for signs of wear or damage, such as cracks or leaks. It is also important to ensure that the housing and thermostat are clean and free from debris that could impede their function. Regular inspections and maintenance can help prolong the lifespan of the thermostat housing and prevent potential issues within the engine cooling system.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a strong reputation in the manufacturing of automotive components, particularly for heavy-duty applications, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company’s products are designed to meet the demanding requirements of heavy-duty environments, ensuring reliability and performance.

Thermostat Housing Fitment for Cummins Engines

The thermostat housing part number 3104698, manufactured by Cummins, is designed to fit a range of ISM and QSM engines. This part is crucial for maintaining the engine’s optimal operating temperature by regulating the flow of coolant.

ISM Engines

• ISM CM570 and ISM CM570/870 The thermostat housing part 3104698 is compatible with the ISM CM570 and ISM CM570/870 engines. These engines are known for their robust performance and reliability, making this part a suitable choice for maintaining their efficiency.

• ISM CM876 The ISM CM876 engine also fits the thermostat housing part 3104698. This part ensures that the engine’s coolant system operates smoothly, contributing to the overall longevity and performance of the engine.

• ISM11 CM876 SN The ISM11 CM876 SN engine is another variant that is compatible with the thermostat housing part 3104698. This part is engineered to meet the specific requirements of this engine model, ensuring effective temperature regulation.

QSM Engines

• QSM11 CM570 The thermostat housing part 3104698 is also suitable for the QSM11 CM570 engine. This part is designed to integrate seamlessly with the engine’s design, providing reliable performance and durability.

• QSM11 CM876 Lastly, the QSM11 CM876 engine fits the thermostat housing part 3104698. This part is engineered to ensure that the engine’s coolant system functions optimally, contributing to the engine’s overall efficiency and lifespan.

Role of Part 3104698 Thermostat Housing in Engine Systems

The part 3104698 Thermostat Housing is an integral component in the efficient operation of engine systems. It serves as the enclosure for the thermostat, which is responsible for regulating the flow of coolant to the engine. This housing is designed to fit snugly around the thermostat, ensuring a secure and leak-free connection.

In the context of the Thermostat Top Level Assembly Housing, the 3104698 Thermostat Housing plays a significant role. It interfaces directly with the top-level assembly, which includes the thermostat, sensor, and various gaskets and seals. The housing provides a stable platform for these components, allowing them to function effectively within the engine’s cooling system.

The housing also connects to the engine block and the upper radiator hose. This connection is vital for maintaining the integrity of the coolant pathway. As the thermostat opens and closes in response to engine temperature, the housing ensures that coolant is directed appropriately, either circulating through the engine or bypassing it to the radiator for cooling.

Additionally, the 3104698 Thermostat Housing often incorporates mounting points for temperature sensors. These sensors provide feedback to the engine control unit (ECU), allowing for precise monitoring and adjustment of engine temperature. This integration enhances the overall performance and reliability of the engine system.

Conclusion

In summary, the 3104698 Thermostat Housing is a key component that facilitates the proper functioning of the thermostat and the top-level assembly housing, ensuring optimal engine performance and efficient coolant management.