4989489
Thermostat Housing
Cummins®

Introduction

The Cummins 4989489 Thermostat Housing is a critical component for commercial trucks, designed to house the thermostat within the engine cooling system. This ensures the engine operates at optimal temperatures, contributing to the truck’s performance and longevity.

Basic Concepts of Thermostat Housing

A thermostat housing is part of the engine cooling system that encases the thermostat. It regulates coolant flow through the engine by opening and closing in response to temperature changes, interacting with other components to maintain engine temperature within a specified range.

Role of the 4989489 Thermostat Housing in Truck Operation

This part plays a role in maintaining optimal engine temperature by securely housing the thermostat. It ensures the engine reaches its operating temperature efficiently and remains within the desired temperature range during operation, preventing overheating and contributing to efficient operation and longevity.

Key Features of the 4989489 Thermostat Housing

The design and construction of this Cummins part include features that enhance its performance and durability. It is made from high-quality materials that resist corrosion and wear, ensuring long-term reliability. The housing is engineered to provide a secure fit for the thermostat, with precise coolant passages that facilitate efficient coolant flow.

Benefits of Using the 4989489 Thermostat Housing

The advantages provided by this part include improved engine efficiency through reliable temperature control. Its durable construction ensures long-term performance, reducing the need for frequent replacements. The housing’s design contributes to the overall reliability of the engine cooling system, enhancing the truck’s operational efficiency.

Installation and Compatibility

Proper installation of the 4989489 Thermostat Housing involves following manufacturer guidelines to ensure a secure and effective fit. Specific requirements may include torque specifications for fastening the housing to the engine and ensuring that all gaskets and seals are in place to prevent coolant leaks. Compatibility with the engine model is crucial for optimal performance.

Maintenance and Troubleshooting

Maintaining this part involves regular inspection routines to check for signs of wear, corrosion, or leaks. Common issues to watch for include gasket failure or thermostat malfunction, which can affect engine temperature regulation. Troubleshooting tips may include checking for proper coolant flow and ensuring that the housing is securely fastened.

Performance Under Various Conditions

The 4989489 Thermostat Housing is designed to perform under different operating conditions, such as extreme temperatures or heavy-duty usage. Its robust construction and precise engineering allow it to maintain efficient coolant flow and temperature regulation, contributing to overall engine performance and reliability.

Comparison with Other Thermostat Housings

When compared to similar products from other manufacturers, the 4989489 Thermostat Housing may exhibit differences in design, performance, and reliability. Factors such as material quality, construction precision, and compatibility with specific engine models can influence the housing’s effectiveness and durability.

Cummins: A Brief Overview

Cummins Inc. is a well-established manufacturer in the commercial truck industry, known for its wide range of high-quality engine and component products. The company’s reputation for reliability and innovation provides context for the quality and performance of the 4989489 Thermostat Housing, reflecting Cummins’ commitment to excellence in engine technology ¹.

Thermostat Housing 4989489 Compatibility with Cummins Engines

The Thermostat Housing part number 4989489, manufactured by Cummins, is designed to fit a variety of Cummins engines. This part is integral to the engine’s cooling system, ensuring that the engine operates at an optimal temperature by regulating coolant flow.

B6.7 Series Engines

• B6.7 CM2350 B135B
• ISB/ISD6.7 CM2150 SN
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118
• QSB6.7 CM2250
• QSB6.7 CM2350 B105

These engines, part of the B6.7 series, are equipped with the 4989489 Thermostat Housing. This housing is engineered to handle the specific thermal requirements of these engines, ensuring efficient coolant flow and temperature regulation.

ISB Series Engines

• ISB CM2150
• ISBE CM2150

The ISB series engines, including the ISB CM2150 and ISBE CM2150, also utilize the 4989489 Thermostat Housing. This part is designed to fit seamlessly into the cooling system architecture of these engines, providing reliable performance and durability.

ISBE4 Series Engine

• ISBE4 CM850

The ISBE4 CM850 engine is another model that is compatible with the 4989489 Thermostat Housing. This part ensures that the engine’s cooling system functions effectively, maintaining the engine’s operational efficiency and longevity.

By ensuring compatibility with a range of Cummins engines, the 4989489 Thermostat Housing provides a versatile solution for maintaining optimal engine temperatures across different engine models.

Role of Part 4989489 Thermostat Housing in Engine Systems

The thermostat housing, identified by part number 4989489, is an integral component in the thermal management system of an engine. It encases the thermostat, which is responsible for regulating the flow of coolant between the engine and the radiator ².

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 engine and radiator, maintaining a consistent temperature.

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 for cooling. Additionally, the housing may incorporate a temperature sensor, which sends data to the engine control unit (ECU) to monitor and adjust engine performance based on temperature readings ³.

Conclusion

In summary, the thermostat housing plays a significant role in maintaining the engine’s temperature, ensuring efficient operation and longevity of the engine components. The Cummins 4989489 Thermostat Housing, with its robust design and compatibility with various Cummins engines, is a reliable component for maintaining optimal engine performance.