4980482
Water Inlet Connection
Cummins®

Introduction

The Water Inlet Connection 4980482, designed by Cummins, is a critical component in the cooling systems of heavy-duty trucks. It ensures the efficient flow of coolant into the engine, maintaining optimal temperature regulation and protecting against overheating. This part is essential for the engine’s performance and longevity under demanding operational conditions.

Basic Concepts of Water Inlet Connections

A water inlet connection serves as a conduit for coolant to enter the engine’s cooling system. It is strategically positioned to allow coolant to flow from the radiator to the engine block, where it absorbs heat. The coolant then circulates through the engine, picking up excess heat generated during combustion, before returning to the radiator to be cooled. This continuous cycle is vital for maintaining the engine’s operating temperature within a safe range ¹.

Purpose of the 4980482 Water Inlet Connection

The 4980482 Water Inlet Connection ensures a steady and unobstructed flow of coolant into the engine. It is designed to connect the radiator hose to the engine block, providing a secure and leak-free passage for coolant. Its function is crucial for the effective operation of the cooling system, as it directly influences the engine’s ability to maintain optimal temperature levels ².

Key Features

The 4980482 Water Inlet Connection is constructed from durable materials that resist corrosion and wear, ensuring long-term reliability. Its design includes precise fittings and seals to prevent leaks, and it is engineered to withstand the high pressures and temperatures typical of heavy-duty truck engines. Additionally, the connection features a robust construction that enhances its durability and performance in demanding conditions ³.

Benefits

The advantages provided by the 4980482 Water Inlet Connection include improved coolant flow, which enhances the engine’s cooling efficiency. This results in better temperature regulation, reducing the risk of overheating and potential engine damage. Furthermore, the connection’s reliable design contributes to increased engine protection and overall system reliability, even under strenuous operating conditions ⁴.

Installation Process

Installing the 4980482 Water Inlet Connection requires careful attention to detail to ensure a secure and effective fit. Preparatory steps include cleaning the installation area and inspecting the connection for any damage. The necessary tools for installation may include wrenches and sealant, depending on the specific requirements. Following the manufacturer’s guidelines for torque specifications and alignment is crucial to achieving a proper seal and connection.

Common Issues and Troubleshooting

Typical problems associated with water inlet connections, such as leaks or blockages, can often be traced to improper installation, wear and tear, or corrosion. Troubleshooting these issues involves inspecting the connection for signs of damage, ensuring all seals are intact, and checking for proper alignment and torque. Addressing these problems promptly can prevent more serious engine issues and ensure the cooling system operates efficiently.

Maintenance Tips

Regular maintenance practices are recommended to ensure the longevity and optimal performance of the 4980482 Water Inlet Connection. This includes periodic inspections for signs of wear, corrosion, or leaks, and cleaning the connection as necessary to remove any buildup that could impede coolant flow. Adhering to these maintenance tips can help maintain the efficiency of the cooling system and extend the life of the connection.

Cummins 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, reliability, and innovation in the automotive and heavy-duty truck industry. The company’s extensive product range includes engines, powertrains, and aftermarket parts, all designed to meet the demanding requirements of various applications.

Water Inlet Connection Part 4980482 in Cummins Engines

The Water Inlet Connection part 4980482 is a critical component in several Cummins engine models, ensuring efficient cooling by facilitating the flow of water into the engine’s cooling system. This part is designed to interface seamlessly with the specified engine models, providing a reliable connection point for the water inlet hose.

QSB4.5 CM850 (CM2850) and QSB6.7 CM850 (CM2850)

The QSB4.5 CM850 (CM2850) and QSB6.7 CM850 (CM2850) engines share a similar design in terms of their water inlet connection. The part 4980482 is engineered to fit precisely with these engines, ensuring a secure and leak-free connection. This is crucial for maintaining optimal engine temperature and preventing overheating, which can lead to significant engine damage.

QSB7 CM2880 B117

The QSB7 CM2880 B117 engine, while part of the Cummins QSB series, has distinct specifications that require a tailored approach for the water inlet connection. The part 4980482 is specifically designed to match the unique requirements of this engine model, ensuring that it can handle the increased thermal load and maintain the cooling system’s integrity. This part’s design accommodates the engine’s specific water flow needs, ensuring efficient cooling and longevity.

Compatibility and Installation

When installing the Water Inlet Connection part 4980482, it is essential to follow the manufacturer’s guidelines to ensure proper fitment and function. This part is designed to be a direct replacement for the original equipment, making it easy to install without the need for extensive modifications. Proper installation is critical to maintaining the engine’s cooling efficiency and preventing potential failures due to inadequate cooling.

Integration with Cooling System Components

The Water Inlet Connection 4980482 interfaces directly with several key components of the engine’s cooling system:

1. Radiator: Allows coolant to flow into the system, ensuring efficient circulation back into the radiator for cooling.
2. Water Pump: Ensures smooth transfer of coolant from the pump to the engine block, maintaining consistent coolant flow.
3. Thermostat Housing: Regulates the flow of coolant based on the engine’s temperature, helping to achieve and maintain the desired operating temperature.
4. Engine Block: Allows coolant to enter the passages within the block, effectively absorbing heat from the combustion chambers and other high-temperature areas.
5. Heater Core: Facilitates the flow of hot coolant to the heater core in systems where the engine’s cooling circuit is also used for cabin heating.

Role in Maintaining Engine Efficiency

The Water Inlet Connection 4980482 is integral to the engine’s thermal management system. By ensuring a consistent and reliable flow of coolant into the engine, it helps in:

• Preventing Overheating: Efficient coolant flow prevents the engine from reaching temperatures that could cause damage.
• Enhancing Performance: A well-regulated cooling system allows the engine to operate at peak efficiency, reducing the risk of thermal stress on components.
• Extending Component Life: Consistent cooling helps in prolonging the lifespan of engine components by reducing thermal cycling and stress.

Conclusion

The Water Inlet Connection 4980482 is a key component in the engine’s cooling system, facilitating the efficient flow of coolant to and from critical engine components. Its proper function is essential for maintaining engine performance and longevity. Regular maintenance and proper installation are crucial to ensure the cooling system operates efficiently and to prevent potential engine damage.