4974930
Water Outlet Connection
Cummins®

The Cummins 4974930 Water Outlet Connection is a critical component in heavy-duty truck engine cooling systems. It facilitates the efficient flow of coolant from the engine to the radiator, ensuring optimal engine temperature and performance. This part is essential for the longevity and reliability of the engine, operating within safe thermal limits ¹.

Basic Concepts of Water Outlet Connection

Water outlet connections are vital in engine cooling systems, directing coolant flow from the engine to the radiator for cooling before recirculation. The efficiency of this process is crucial for dissipating engine heat, preventing overheating, and maintaining consistent engine performance. The design and material of the water outlet connection significantly influence the cooling system’s effectiveness ².

Purpose of the 4974930 Water Outlet Connection

The 4974930 Water Outlet Connection is engineered to enhance coolant flow within the engine cooling system. It provides a secure and efficient pathway for coolant to exit the engine and enter the radiator, maintaining stable engine temperature. Designed to withstand high pressures and temperatures typical of heavy-duty truck engines, this Cummins part ensures reliable performance under demanding conditions ¹.

Key Features

This part boasts several key features contributing to its performance and durability. Its design ensures a snug fit and efficient coolant flow. Constructed from high-quality materials, it is resistant to corrosion and capable of withstanding harsh conditions encountered in heavy-duty applications. Additionally, it may feature enhanced sealing mechanisms to prevent leaks and ensure the integrity of the cooling system ³.

Benefits

Using the 4974930 Water Outlet Connection offers several benefits. It contributes to improved engine efficiency by ensuring optimal coolant flow, helping maintain engine temperature within desired limits. This leads to enhanced engine longevity and reliability, reducing the likelihood of overheating-related issues. The part’s durable construction and precise design contribute to its long-term performance, making it a valuable component in heavy-duty truck engine cooling systems ¹.

Installation Process

Installing the 4974930 Water Outlet Connection requires careful attention to detail to ensure a secure and efficient fit. The process involves disconnecting the old water outlet connection, cleaning the mating surfaces, and attaching the new part using the appropriate tools and equipment. It is important to follow manufacturer guidelines for torque specifications and sealing procedures to ensure a leak-free connection. Proper installation is crucial for the part to function effectively within the engine cooling system ¹.

Troubleshooting Common Issues

Common issues associated with water outlet connections include leaks and blockages. Leaks may occur due to improper installation, wear and tear, or corrosion. Blockages can result from debris or sediment buildup within the cooling system. Troubleshooting steps may involve inspecting the connection for signs of damage or wear, cleaning the cooling system to remove debris, and ensuring the connection is securely fitted. Addressing these issues promptly can help maintain the efficiency and reliability of the engine cooling system ².

Maintenance Tips

Regular maintenance of the 4974930 Water Outlet Connection is important for ensuring its longevity and optimal performance. This includes periodic inspection for signs of wear, corrosion, or leaks. Cleaning the connection and surrounding areas can help prevent buildup that may lead to blockages. Following manufacturer recommendations for inspection intervals and maintenance procedures can contribute to the overall health of the engine cooling system ³.

About Cummins

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, reliability, and innovation in the automotive industry, particularly in the manufacture of diesel engines and related components. The company’s commitment to excellence is reflected in its wide range of products designed to meet the demanding needs of various applications, including heavy-duty trucks.

Water Outlet Connection Part 4974930 Compatibility with Cummins Engines

The Water Outlet Connection part 4974930, manufactured by Cummins, is designed to fit seamlessly with a variety of Cummins engine models. This part is crucial for maintaining the engine’s cooling system efficiency and ensuring optimal performance.

Compatible Engines

• ISX12/ISX11.9 CM2250
• ISZ13 CM2150 Z105
• QSZ13 CM2150 Z101
• QSZ13 CM2150 Z102
• Z13 Z108G

Grouping of Compatible Engines

The engines listed above can be grouped based on their series and model specifications. The ISX12/ISX11.9 CM2250 engines are part of the ISX series, known for their robust performance and reliability. The ISZ13 CM2150 Z105, QSZ13 CM2150 Z101, and QSZ13 CM2150 Z102 engines belong to the QSZ series, which are designed for heavy-duty applications. The Z13 Z108G engine is another variant that fits within the same series, offering similar performance characteristics.

This part ensures that the cooling system operates efficiently across these engines, maintaining the necessary temperature levels to prevent overheating and ensure longevity.

Role of Part 4974930 Water Outlet Connection in Engine Systems

The part 4974930 Water Outlet Connection is a critical component in the cooling system of an engine. It serves as a pivotal junction where the coolant flow is directed from the engine block to various parts of the cooling system, ensuring efficient heat dissipation.

Integration with Engine Components

1. Engine Block: The water outlet connection is typically bolted to the engine block. It facilitates the transfer of coolant from the block to other components, maintaining optimal engine temperature.

2. Thermostat Housing: Often, the water outlet connection is integrated with the thermostat housing. This allows for regulated coolant flow based on engine temperature, enhancing overall engine performance and longevity.

3. Radiator Hoses: The connection point for the upper radiator hose is usually part of the water outlet. This ensures a seamless flow of coolant to the radiator, where it is cooled before returning to the engine.

4. Heater Core: In many systems, the water outlet connection also routes coolant to the heater core, providing cabin heating and contributing to the comfort of the vehicle’s occupants.

5. Coolant Recovery Tank: The connection may also link to the coolant recovery tank, allowing for the expansion and contraction of coolant as it heats up and cools down, preventing overflow and maintaining system pressure.

6. Water Pump: The efficiency of the water pump is enhanced by the precise routing of coolant facilitated by the water outlet connection, ensuring consistent coolant circulation throughout the engine.

By understanding the role of the water outlet connection, engineers and mechanics can better appreciate its significance in maintaining the integrity and performance of the engine’s cooling system.

Conclusion

The Cummins 4974930 Water Outlet Connection is a vital component in heavy-duty truck engine cooling systems. Its precise design, durable construction, and efficient coolant flow management contribute to the engine’s longevity, reliability, and optimal performance. Regular maintenance and proper installation are essential to ensure the part functions effectively within the cooling system.