3979118
Water Inlet Connection
Cummins®

The Water Inlet Connector 3979118, manufactured by Cummins, is a component designed for use in heavy-duty truck operations. Cummins, a well-established name in the automotive industry, particularly in the manufacture of diesel engines and related components, produces this part to enhance the efficiency and reliability of truck cooling systems. The Water Inlet Connector 3979118 is integral to maintaining optimal engine temperature, which is vital for the performance and longevity of heavy-duty trucks.

Basic Concepts of Water Inlet Connectors

A Water Inlet Connector is a component within a truck’s cooling system that facilitates the flow of coolant into the engine. Its general function is to ensure a steady and regulated supply of coolant, which helps in maintaining the engine’s temperature within a specified range. This is crucial for preventing overheating, which can lead to engine damage, and ensuring that the engine operates efficiently ¹.

Purpose of the 3979118 Water Inlet Connector

The 3979118 Water Inlet Connector plays a specific role in the operation of a truck by serving as a conduit for coolant entry into the engine. It is designed to integrate seamlessly within the engine cooling system, ensuring that coolant is distributed effectively throughout the engine. This helps in dissipating heat generated during engine operation, thereby contributing to stable engine temperature and performance ².

Key Features

The 3979118 Water Inlet Connector is characterized by several key features that enhance its performance and durability. It is constructed from high-quality materials that are resistant to corrosion and wear, ensuring longevity even under demanding conditions. The design of the connector includes precise engineering to facilitate efficient coolant flow and secure fitting within the engine system. Additionally, it may feature unique characteristics such as enhanced sealing mechanisms to prevent coolant leaks, which are common issues in cooling systems ³.

Benefits

The advantages provided by the 3979118 Water Inlet Connector include improved engine efficiency and reliability. By ensuring a consistent flow of coolant, it helps in maintaining optimal engine temperature, which is crucial for efficient engine operation. This can lead to enhanced fuel efficiency and reduced risk of engine overheating. For fleet operators, the reliability and longevity of the connector can translate into cost savings by reducing the frequency of replacements and repairs ⁴.

Installation and Compatibility

Proper installation of the 3979118 Water Inlet Connector is crucial for its effective function. It is important to follow manufacturer guidelines to ensure that the connector is fitted correctly within the engine system. Compatibility with the truck’s make and model is also a key consideration, as this ensures that the connector fits securely and functions as intended within the specific cooling system design of the truck ⁵.

Troubleshooting and Maintenance

Common issues that may arise with the 3979118 Water Inlet Connector include leaks and blockages, which can affect the efficiency of the cooling system. Regular inspection and maintenance practices are recommended to ensure the longevity and optimal performance of the connector. This includes checking for signs of wear or damage, ensuring secure fittings, and addressing any issues promptly to prevent further complications ⁶.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the automotive industry. The company’s product range includes diesel engines, natural gas engines, and related components, all of which are designed to meet the demanding requirements of various applications, including heavy-duty trucks.

Water Inlet Connector Part 3979118 Compatibility with Cummins Engines

The Water Inlet Connector part 3979118, manufactured by Cummins, is designed to fit a variety of Cummins engines. This part is crucial for the proper functioning of the engine’s cooling system, ensuring that water is efficiently directed into the engine block.

ISB and ISD Series

• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN

The ISB and ISD series engines are known for their robust performance and reliability. The Water Inlet Connector part 3979118 is compatible with these engines, facilitating the smooth flow of coolant into the engine block, which is essential for maintaining optimal operating temperatures.

ISBE Series

• ISBE CM2150
• ISBE CM800
• ISBE4 CM850

The ISBE series engines are designed for heavy-duty applications, providing high power output and durability. The Water Inlet Connector part 3979118 is engineered to fit these engines, ensuring efficient coolant flow and contributing to the engine’s overall cooling efficiency.

QSB Series

• QSB4.5 CM850 (CM2850)
• QSB6.7 CM850 (CM2850)
• QSB7 CM2880 B117

The QSB series engines are versatile and widely used in various applications, from agricultural to industrial use. The Water Inlet Connector part 3979118 is compatible with these engines, ensuring that the coolant is properly directed into the engine block, which is vital for maintaining the engine’s performance and longevity.

Role of Part 3979118 Water Inlet Connector in Engine Systems

The 3979118 Water Inlet Connector is an essential component in the cooling system of various engine setups. Its primary function is to facilitate the connection between the water inlet and other critical components within the engine’s cooling system.

Integration with Engine Components

1. Water Pump Connection: The Water Inlet Connector interfaces directly with the water pump, allowing coolant to be circulated from the pump to the engine block. This ensures that the engine maintains optimal operating temperatures.

2. Thermostat Housing Link: It also connects to the thermostat housing, which regulates the flow of coolant based on the engine’s temperature. This connection is vital for maintaining efficient engine performance and preventing overheating.

3. Radiator Connection: The connector plays a role in linking the engine to the radiator, enabling the transfer of heated coolant to the radiator for cooling before it is recirculated back into the engine.

4. Coolant Passage to Engine Block: By providing a secure connection to the engine block, the Water Inlet Connector ensures that coolant reaches the cylinders and other critical areas, dissipating heat effectively.

5. Pressure Regulation: It assists in maintaining system pressure, which is necessary for efficient coolant circulation and preventing leaks within the cooling system.

Conclusion

In summary, the 3979118 Water Inlet Connector is a pivotal element in the engine’s cooling system, ensuring that all connections are secure and that coolant flows smoothly throughout the system. Its role in maintaining optimal engine temperature is crucial for the performance and longevity of heavy-duty trucks.