3925474
Thermostat Housing
Cummins®

Introduction

The Cummins 3925474 Thermostat Housing is a component designed for use in the engine cooling systems of heavy-duty trucks. Its primary function is to house the thermostat, which regulates the flow of coolant through the engine. By maintaining optimal engine temperature, this part plays a role in ensuring efficient engine operation and protecting the engine from overheating 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 and allowing the engine to warm up quickly. As the engine temperature rises, the thermostat opens, allowing coolant to circulate through the engine block and radiator, thereby regulating temperature. The housing also connects to coolant passages and the engine block, facilitating this process ².

Purpose of the Cummins 3925474 Thermostat Housing

The Cummins 3925474 Thermostat Housing is designed to maintain optimal engine temperature. By securely housing the thermostat, it ensures that the coolant flow is regulated effectively. This regulation is vital for efficient engine operation, as it prevents the engine from overheating during operation and ensures it reaches the optimal operating temperature quickly during startup. Proper temperature management contributes to the longevity and performance of the engine ³.

Key Features

The Cummins 3925474 Thermostat Housing is constructed from durable materials that can withstand the high temperatures and pressures within the engine cooling system. Its design includes features that enhance performance, such as precise fitting to prevent leaks and robust construction to endure harsh operating conditions. Unique characteristics may include specific mounting points or coolant flow pathways that are tailored to Cummins engines, differentiating it from generic thermostat housings.

Benefits

The Cummins 3925474 Thermostat Housing offers several benefits. It contributes to improved engine efficiency by ensuring consistent and reliable temperature regulation. Its durable construction allows it to withstand the rigors of heavy-duty applications, providing long-lasting performance. Additionally, the precise design of the housing helps maintain a sealed system, preventing coolant leaks and ensuring optimal coolant flow.

Installation and Compatibility

Proper installation of the Cummins 3925474 Thermostat Housing involves several steps to ensure it functions correctly within the engine cooling system. This includes verifying that the housing is compatible with the specific engine model and ensuring all connections are secure and leak-free. Special considerations may include the orientation of the housing and the correct installation of gaskets or seals to prevent coolant leaks.

Troubleshooting and Maintenance

Common issues with thermostat housings can include leaks, thermostat malfunction, or housing degradation due to extreme temperatures. Diagnostic tips for identifying problems may involve checking for coolant leaks around the housing, monitoring engine temperature for irregularities, and inspecting the housing for signs of wear or damage. Regular maintenance practices, such as inspecting the housing and thermostat for wear and ensuring all connections are tight, can help ensure the longevity and optimal performance of the Cummins 3925474 Thermostat Housing.

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 automotive industry, Cummins is known for its commitment to producing high-quality components for heavy-duty applications. The company’s focus on innovation, quality, and customer satisfaction has established it as a trusted name in the production of engine components, including the Cummins 3925474 Thermostat Housing.

Thermostat Housing Fitment for Cummins Part 3925474

The Thermostat Housing part number 3925474, manufactured by Cummins, is designed to integrate seamlessly with a variety of engine models. This component plays a role in regulating the engine’s temperature by housing the thermostat and ensuring proper coolant flow.

Engine Compatibility

• 6B5.9 Series
  • The Thermostat Housing part 3925474 is specifically engineered to fit the 6B5.9 engines. This compatibility ensures that the housing aligns perfectly with the engine’s design, facilitating efficient coolant circulation and maintaining optimal engine temperature.

Installation Considerations

When installing the Thermostat Housing part 3925474, it is essential to follow the manufacturer’s guidelines to ensure a secure and effective fit. Proper installation helps prevent coolant leaks and ensures the thermostat operates correctly, which is vital for engine performance and longevity.

Grouping of Engines

For the 6B5.9 engines, the Thermostat Housing part 3925474 is a component that fits uniformly across the series. This consistency in design allows for ease of maintenance and replacement, making it a reliable choice for technicians and fleet managers.

Role of Part 3925474 Thermostat Housing in Engine Systems

The thermostat housing, identified by part number 3925474, 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 between the engine and the radiator.

When the engine is cold, the thermostat remains closed, preventing coolant from flowing to 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 radiator, where it is cooled before returning to the engine.

The thermostat housing is connected to the engine block via gaskets and bolts, ensuring a secure and leak-free seal. It is also linked to the upper radiator hose, which carries hot coolant from the engine to the radiator. Additionally, the housing may incorporate a temperature sensor, which monitors the coolant temperature and sends data to the engine control unit (ECU). This information helps the ECU make adjustments to fuel delivery and ignition timing for optimal performance and efficiency.

Conclusion

In summary, the Cummins 3925474 Thermostat Housing plays a significant role in maintaining the engine’s temperature within a specified range, ensuring efficient operation and preventing overheating. Its durable construction, precise design, and compatibility with Cummins engines make it a reliable component for heavy-duty applications.