3963596
Thermostat Housing
Cummins®

Introduction

The Cummins 3963596 Thermostat Housing is a component designed for use in the engine systems of heavy-duty trucks. Its primary role is to facilitate the regulation of engine temperature, ensuring optimal performance and longevity of the engine.

Basic Concepts of Thermostat Housing

A thermostat housing is an integral part of the engine cooling system. It encases the thermostat, which controls the flow of coolant through the engine. The housing connects to the engine block and the upper radiator hose, allowing coolant to circulate between the engine and the radiator. This circulation helps maintain the engine at an optimal operating temperature, preventing overheating and ensuring efficient engine performance ¹.

Purpose of the Cummins 3963596 Thermostat Housing

This Cummins part plays a significant role in the operation of a truck by maintaining optimal engine temperature. It houses the thermostat, which opens and closes to regulate the flow of coolant based on the engine’s temperature. This regulation is vital for preventing engine overheating during operation and ensuring the engine reaches its optimal operating temperature quickly after a cold start ².

Key Features

The Cummins 3963596 Thermostat Housing is constructed from durable materials, ensuring it can withstand the high temperatures and pressures within the engine cooling system. Its design includes precise coolant passages that facilitate efficient coolant flow. Additionally, the housing is engineered to provide a secure fit on the engine, minimizing the risk of leaks and ensuring reliable performance.

Benefits

The Cummins 3963596 Thermostat Housing offers several benefits, including improved engine efficiency through precise temperature regulation. Its robust construction ensures long-term durability, even in the demanding conditions of heavy-duty truck applications. Reliable temperature regulation contributes to the overall health and longevity of the engine, reducing the risk of overheating and related damage.

Installation Considerations

Proper installation of the Cummins 3963596 Thermostat Housing is crucial for its effective function. It is designed to be compatible with specific Cummins engine models, ensuring a precise fit and optimal performance. Before installation, it is important to ensure the engine is clean and free of any debris that could interfere with the housing’s seal. Following the manufacturer’s guidelines for torque specifications and sealing procedures is recommended to ensure a secure and leak-free installation.

Troubleshooting Common Issues

Common issues with thermostat housings can include leaks or thermostat malfunctions. Leaks may occur due to improper installation, damaged gaskets, or corrosion. Troubleshooting steps include inspecting the housing and gaskets for damage, ensuring proper installation, and replacing any compromised components. Thermostat malfunctions can be diagnosed by monitoring engine temperature and coolant flow, with replacement of the thermostat or housing as necessary.

Maintenance Tips

Regular maintenance of the Cummins 3963596 Thermostat Housing is important for ensuring continued optimal performance. This includes periodic inspection for signs of wear or damage, cleaning the housing to remove any buildup that could impede coolant flow, and replacing the housing if significant corrosion or damage is observed. Adhering to recommended maintenance schedules helps prevent unexpected failures and ensures the engine cooling system operates efficiently.

Manufacturer Information - Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and aftermarket parts. With a strong reputation in the automotive industry, Cummins is committed to producing high-quality components that meet the demanding requirements of heavy-duty applications. Their focus on innovation, quality, and customer satisfaction has established them as a trusted name in the industry.

Thermostat Housing Compatibility with Cummins Engines

The Thermostat Housing part number 3963596, manufactured by Cummins, is designed to fit a range of Cummins engines. This part is integral to the engine’s cooling system, ensuring that the engine operates within its optimal temperature range.

ISB Series Engines

For the ISB series engines, the Thermostat Housing part number 3963596 is compatible with the following models:

• ISB CM2150
• ISB CM850
• ISB6.7 CM2250

These engines are known for their robust performance and reliability, often used in heavy-duty applications. The thermostat housing ensures that the coolant flows correctly, maintaining the engine’s temperature and preventing overheating.

QSB Series Engines

The Thermostat Housing part number 3963596 also fits the QSB6.7 CM850 (CM2850) engine. This engine is another variant in the Cummins lineup, designed for applications that require a balance of power and efficiency. The thermostat housing in this engine model plays a crucial role in regulating the coolant flow, ensuring the engine maintains its operational temperature.

Conclusion

The Cummins 3963596 Thermostat Housing is a versatile component that fits seamlessly into various Cummins engine models, including the ISB CM2150, ISB CM850, ISB6.7 CM2250, and QSB6.7 CM850 (CM2850). This compatibility ensures that the cooling system functions effectively, contributing to the overall performance and longevity of these engines. Proper installation, regular maintenance, and troubleshooting common issues are essential for ensuring the optimal operation of this part in engine systems.