4994236
Male Union
Cummins®

The 4994236 Male Union Fitting, manufactured by Cummins, is a specialized component designed for use in commercial truck systems. Cummins, a well-established name in the commercial vehicle industry, produces a wide range of parts and systems that contribute to the efficiency and reliability of heavy-duty trucks. This part plays a role in ensuring the proper functioning of fluid systems in trucks.

Basic Concepts of Male Union Fittings

Male union fittings are components used in fluid systems to connect pipes or hoses. They consist of a male threaded end that screws into a corresponding female fitting, creating a secure and leak-proof connection. These fittings are commonly used in automotive and industrial applications where fluid transfer is necessary, such as in fuel, hydraulic, and cooling systems. Their design allows for easy disassembly and reassembly, which is beneficial for maintenance and repair purposes ¹.

Purpose of the 4994236 Male Union Fitting

The 4994236 Male Union Fitting is designed to facilitate the connection between different sections of a truck’s fluid system. It ensures a reliable seal, preventing leaks and maintaining the integrity of the system. This fitting is particularly important in environments where vibrations and temperature fluctuations are common, as it helps to maintain a stable connection under varying conditions.

Key Features

This Cummins part is constructed from high-quality materials, ensuring durability and resistance to corrosion. Its design includes precise threading and a robust body, which contribute to a secure fit and reliable performance. Additionally, the fitting may feature enhancements such as O-rings or gaskets to improve sealing capabilities and withstand high-pressure environments ².

Benefits

The use of the 4994236 Male Union Fitting offers several advantages. It contributes to improved system efficiency by ensuring a tight seal and preventing fluid leaks. The fitting’s design also enhances the reliability of the fluid system, reducing the likelihood of unexpected failures. Furthermore, its ease of installation and maintenance makes it a practical choice for commercial truck applications.

Installation Considerations

Proper installation of the 4994236 Male Union Fitting is crucial for its effective performance. It is recommended to use the appropriate tools to ensure the fitting is securely tightened without over-torquing, which could damage the threads. Preparation steps may include cleaning the mating surfaces and applying a compatible sealant to enhance the seal. Alignment procedures should ensure that the fitting is correctly oriented to avoid stress on the connection ³.

Troubleshooting Common Issues

Common issues with male union fittings can include leaks, difficulty in disassembly, or thread damage. Leaks may be caused by improper installation, corrosion, or wear. To address this, re-tightening the fitting or replacing damaged components may be necessary. Difficulty in disassembly can often be resolved by using the correct tools and techniques to avoid damaging the fitting. Thread damage may require the replacement of the fitting or the use of a thread repair kit.

Maintenance Tips

Routine checks and maintenance practices are important for ensuring the longevity and optimal performance of the 4994236 Male Union Fitting. Regular inspections for signs of wear, corrosion, or leaks can help identify potential issues before they become serious problems. Cleaning the fitting and its connections, as well as applying lubricants where appropriate, can also contribute to its reliable operation.

Compatibility and Usage

The 4994236 Male Union Fitting is designed for use in specific applications within commercial trucks. It is compatible with various fluid systems, including fuel, hydraulic, and cooling systems. Its usage is intended for environments where robust and reliable fluid connections are required.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the commercial vehicle industry. The company’s product range includes engines, filtration systems, and components like the 4994236 Male Union Fitting, all of which are designed to meet the demanding requirements of heavy-duty applications.

Male Union Fitting 4994236 Compatibility with Cummins Engines

The Male Union Fitting part number 4994236, manufactured by Cummins, is designed to integrate seamlessly with several of their engine models. This fitting is crucial for ensuring secure and leak-proof connections in various engine systems.

QSB6.7 CM2250

The QSB6.7 CM2250 engine benefits from the Male Union Fitting 4994236 in its fuel and coolant systems. This fitting provides a robust connection point, ensuring that the engine operates efficiently and reliably. Its design allows for easy assembly and disassembly, facilitating maintenance and repairs.

QSC9 CM2250/QSL9 CM2250

For the QSC9 CM2250 and QSL9 CM2250 engines, the Male Union Fitting 4994236 is integral to the engine’s fuel and coolant management systems. This part ensures that connections are tight and secure, preventing leaks and maintaining optimal engine performance. Its compatibility with these engines underscores its versatility and importance in Cummins’ engine lineup.

Role of Part 4994236 Male Union Fitting in Engine Systems

The 4994236 Male Union Fitting is integral to the seamless operation of various engine systems. It facilitates the secure connection between different components, ensuring efficient fluid transfer and system integrity.

Air Intake Connection

In the air intake system, the 4994236 Male Union Fitting ensures a tight seal between the air filter housing and the intake manifold. This connection is essential for maintaining the correct air-fuel ratio, which is vital for optimal engine performance and emissions control.

Auxiliary Pump and Auxiliary Pump Plumbing

For systems utilizing an auxiliary pump, such as those in hydraulic or cooling applications, the 4994236 Male Union Fitting plays a key role. It connects the auxiliary pump to its plumbing, allowing for the efficient circulation of fluids. This is particularly important in high-demand scenarios where the primary system may require additional support.

Engine Coolant Vent

In the engine coolant system, the fitting is used to connect the coolant vent to the rest of the system. This helps in maintaining the correct pressure within the coolant system, preventing overheating and ensuring consistent engine temperature.

Exhaust Gas Recirculation Valve and Exhaust Recirculation Valve Kit

For emissions control, the fitting is employed in the exhaust gas recirculation (EGR) system. It connects the EGR valve to the exhaust manifold and the intake manifold, allowing a measured amount of exhaust gas to be recirculated back into the combustion chamber. This reduces nitrogen oxides (NOx) emissions and improves fuel efficiency.

Hydraulic Pump

In hydraulic systems, the 4994236 Male Union Fitting is used to connect the hydraulic pump to the fluid lines. This ensures that hydraulic fluid is delivered under pressure to various actuators and components, enabling the operation of brakes, steering, and other hydraulically-driven systems.

Oil Drain Connection and Oil Fill Arrangement

For the lubrication system, the fitting is utilized in both the oil drain connection and the oil fill arrangement. It ensures that oil can be efficiently drained from the sump and refilled, maintaining the lubrication of moving parts and prolonging engine life.

Turbocharger Plumbing

In turbocharged engines, the fitting is part of the turbocharger plumbing, connecting the turbocharger to the intake and exhaust systems. This allows for the efficient transfer of exhaust gases to drive the turbine and the delivery of compressed air to the intake manifold, enhancing engine performance.

Water Transfer Connection

In cooling systems that involve water transfer, such as those in marine or industrial engines, the 4994236 Male Union Fitting ensures a secure connection between the water pump and the heat exchanger. This facilitates the efficient transfer of heat away from the engine, preventing overheating.

Conclusion

The 4994236 Male Union Fitting by Cummins is a critical component in the fluid systems of commercial trucks. Its robust design, ease of installation, and maintenance make it a reliable choice for ensuring the efficient operation of various engine systems. Proper installation and regular maintenance are essential to maximize the benefits of this fitting and ensure the longevity and performance of the truck’s fluid systems.