3090170
Thermostat Housing Gasket
Cummins®

The Thermostat Housing Seal, identified by part number 3090170, is a component produced by Cummins that plays a role in the engine cooling system. This seal is instrumental in maintaining engine efficiency and performance by ensuring the proper operation of the thermostat and coolant passages. Its function is vital for the overall health and longevity of the engine, making it a key element in the cooling system’s architecture ¹.

Function and Operation

The Thermostat Housing Seal operates within the engine cooling system by creating a secure barrier that prevents coolant leakage. It works in conjunction with the thermostat, which regulates the flow of coolant based on engine temperature. When the engine reaches optimal operating temperature, the thermostat opens, allowing coolant to flow through the engine block and cylinder head. The seal ensures that this coolant flow is contained within the system, preventing leaks that could lead to engine overheating or inefficient cooling ².

Purpose of the Thermostat Housing Seal

The primary role of the Thermostat Housing Seal in a truck’s engine is to maintain optimal engine temperature by ensuring efficient coolant flow. By sealing the thermostat housing, it prevents coolant from escaping, which could otherwise lead to engine overheating. This seal contributes to the consistent and reliable performance of the cooling system, thereby supporting the engine’s overall efficiency and durability ³.

Key Features

The Thermostat Housing Seal is designed with several key features that enhance its performance and durability. It is typically made from high-quality materials that can withstand the high temperatures and pressures within the engine cooling system. The seal is engineered to fit precisely within the thermostat housing, ensuring a tight and reliable seal. Additionally, it may feature unique characteristics such as anti-corrosion coatings or reinforced edges to further improve its longevity and effectiveness.

Benefits

Using the Thermostat Housing Seal offers several benefits. It contributes to improved engine efficiency by ensuring that the cooling system operates as intended, maintaining optimal engine temperature. The seal’s durable construction enhances the reliability of the cooling system, reducing the likelihood of leaks or failures. Furthermore, its reliable performance under various operating conditions helps to protect the engine from overheating and related damage.

Installation Considerations

Proper installation of the Thermostat Housing Seal is crucial for ensuring its effectiveness. It is recommended to use specific tools and techniques to achieve the correct fitment and sealing. Careful attention should be paid to the condition of the sealing surfaces to ensure they are clean and free from debris. Following manufacturer guidelines for torque specifications and sealing procedures will help to ensure a secure and leak-free installation.

Common Issues and Troubleshooting

Common issues with the Thermostat Housing Seal may include leaks or failures, which can often be traced to improper installation, wear, or damage. Troubleshooting these issues involves inspecting the seal for signs of wear, checking the fitment within the thermostat housing, and ensuring that all mating surfaces are clean and undamaged. Replacing the seal with a new one, if necessary, and re-evaluating the installation process can help to resolve these issues.

Maintenance and Inspection

Routine maintenance and inspection of the Thermostat Housing Seal are recommended to ensure continued reliable performance. Regular checks should be conducted during scheduled maintenance intervals to look for signs of wear, damage, or leaks. Paying attention to any changes in engine temperature or cooling system performance can also indicate potential issues with the seal. Early detection and replacement of a worn or damaged seal can prevent more significant problems down the line.

Cummins Overview

Cummins is a well-established company with a strong reputation in the automotive and heavy-duty truck industry. Known for its commitment to producing high-quality components, Cummins has a history of innovation and excellence. The company’s dedication to quality and performance is evident in its range of engine parts, including the Thermostat Housing Seal, which is designed to meet the demanding requirements of modern engines.

Thermostat Housing Seal Compatibility with Cummins Engines

The Thermostat Housing Seal part number 3090170, manufactured by Cummins, is designed to fit a variety of Cummins engines. This seal ensures a proper seal between the thermostat housing and the engine block, preventing coolant leaks and maintaining optimal engine temperature. Below is a detailed overview of its compatibility with the specified engines:

QSK19 Series

• QSK19 CM2350 K105
• QSK19 CM2350 K114
• QSK19 CM2350 K144G

The Thermostat Housing Seal 3090170 is compatible with the QSK19 CM2350 series engines, including the K105, K114, and K144G variants. These engines are known for their robust design and reliability, often used in heavy-duty applications. The seal ensures that the thermostat housing remains tightly sealed, which is crucial for maintaining engine efficiency and preventing overheating.

QSK19 CM500

The QSK19 CM500 engine also benefits from the use of the Thermostat Housing Seal 3090170. This engine is designed for high-performance applications, and the seal plays a role in maintaining the integrity of the cooling system. Ensuring a proper seal helps in maintaining the engine’s operational temperature, which is vital for its longevity and performance.

QSK19 CM850 MCRS

The QSK19 CM850 MCRS engine is another variant that is compatible with the Thermostat Housing Seal 3090170. This engine is typically used in marine and rail applications, where reliability and durability are paramount. The seal ensures that the thermostat housing remains sealed, preventing any coolant leaks that could lead to engine damage.

QSK19G

Lastly, the QSK19G engine is also compatible with the Thermostat Housing Seal 3090170. This engine is known for its versatility and is used in a variety of applications, from construction to power generation. The seal is essential for maintaining the cooling system’s integrity, ensuring that the engine operates at optimal temperatures.

Role of Part 3090170 Thermostat Housing Seal in Engine Systems

The part 3090170 Thermostat Housing Seal is a component in maintaining the integrity and efficiency of various engine systems. Its primary function is to ensure a secure and leak-free connection between the thermostat housing and the engine block or cylinder head. This seal plays a role in the following engine components and systems:

1. Thermostat Housing

The thermostat housing is a part of the engine’s cooling system, enclosing the thermostat and providing a passage for coolant flow. The 3090170 seal ensures that coolant does not leak from the housing, maintaining consistent coolant levels and efficient temperature regulation.

2. Cooling System Gasket Kit

In a cooling system gasket kit, the 3090170 seal is often included to replace worn or damaged seals in the thermostat housing. This ensures that the entire cooling system remains sealed, preventing coolant loss and maintaining optimal engine operating temperatures.

3. Lower Engine Coolant Gasket Set and Lower Engine Gasket Kit

These sets typically include various gaskets and seals required for the lower portion of the engine, including the thermostat housing area. The 3090170 seal is vital in these kits to ensure all coolant passages are sealed properly, contributing to the overall efficiency of the cooling system.

4. Service Coupling 2008 and 2009 Assemblies

These assemblies are used in maintenance and repair procedures for specific engine models. The 3090170 seal is incorporated to ensure that when these couplings are installed or replaced, the connection to the thermostat housing remains leak-free, facilitating smooth coolant flow.

5. Short Block Kit

A short block kit includes essential engine components required for a rebuild. The 3090170 seal is often part of this kit to ensure that the thermostat housing is properly sealed during the rebuild process, contributing to the engine’s overall reliability and performance.

6. Plumbing and Housing Arrangements

In engine plumbing arrangements, the thermostat housing seal is crucial for maintaining the integrity of coolant pathways. Proper sealing ensures that coolant circulates efficiently through the engine, aiding in temperature regulation and preventing overheating.

7. Campaign Kit

Campaign kits are designed to address specific issues or recalls in engine systems. The 3090170 seal may be included in these kits to rectify sealing issues in the thermostat housing, ensuring that the engine operates within specified parameters and meets safety and performance standards.

Conclusion

In summary, the 3090170 Thermostat Housing Seal is a fundamental component in various engine systems, ensuring that the thermostat housing remains sealed and functional. Its role in maintaining coolant integrity and engine temperature regulation is indispensable for the efficient operation of the engine.