203850
Male Union
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$33.95 $40.40

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Male Union 203850, manufactured by Cummins, is a specialized component designed for use in commercial trucks. This part is integral to the fluid systems within these vehicles, ensuring efficient operation and reliability. Cummins, a well-established name in the commercial vehicle industry, is known for its commitment to quality and innovation, making the Male Union 203850 a trusted choice for fleet operators and maintenance professionals.

Basic Concepts of Male Unions

A male union is a type of fitting used in fluid systems to connect two pipes or components. It consists of a male threaded end that screws into a corresponding female socket, providing a secure and leak-proof connection. Male unions are commonly used in automotive and industrial applications due to their ease of installation and disassembly, which facilitates maintenance and repairs. They are particularly valued for their ability to create a tight seal under pressure, ensuring the integrity of the fluid system 1.

Purpose of the Male Union 203850 in Truck Operations

In commercial trucks, the Male Union 203850 serves a specific role within the fluid systems, such as fuel, hydraulic, or coolant systems. It facilitates the connection between different components, allowing for the efficient transfer of fluids. This part ensures that the system operates smoothly, with minimal risk of leaks or disruptions, which is vital for the performance and safety of the vehicle.

Key Features of the Male Union 203850

The design and construction of the Male Union 203850 include several features that enhance its performance and durability. It is typically made from high-quality materials that resist corrosion and wear, ensuring longevity in demanding environments. The thread type is designed for a secure fit, and the connection method allows for easy installation and removal. Unique design elements may include reinforced seals or specialized coatings to improve functionality.

Benefits of Using the Male Union 203850

Incorporating the Male Union 203850 into truck fluid systems offers several advantages. It provides improved sealing, which is crucial for maintaining system integrity under high pressure. The ease of installation reduces downtime during maintenance, and its durable construction ensures long-term reliability. Additionally, the part’s resistance to corrosion and wear contributes to the overall efficiency and safety of the vehicle’s fluid systems.

Installation and Usage Guidelines

Proper installation of the Male Union 203850 is key to ensuring a secure and leak-free connection. This involves preparing the connection points to ensure they are clean and free of debris. Following torque specifications is important to achieve the correct tightness without over-tightening, which could damage the fitting or the connected components. Ensuring a secure connection is vital for the system’s performance and safety.

Maintenance and Troubleshooting

To maintain the Male Union 203850 and ensure its longevity and optimal performance, regular inspections for leaks, corrosion, or wear are recommended. Troubleshooting common issues such as leaks or connection failures may involve checking for proper torque, inspecting seals, or replacing worn components. Adhering to these maintenance practices helps prevent system failures and extends the life of the part.

Compatibility and Applications

The Male Union 203850 is designed for use in specific systems within commercial trucks. It is compatible with various components and fluids, making it a versatile choice for fleet operators. Understanding its applications and compatibility ensures that it is used effectively within the vehicle’s fluid systems, contributing to the overall performance and reliability of the truck.

Cummins: A Brief Overview

Cummins Inc. is a leader in the commercial vehicle industry, with a history of innovation and quality. The company offers a wide range of products, including engines, filtration systems, and components like the Male Union 203850. Cummins is renowned for its commitment to customer satisfaction, providing reliable and high-performance parts that meet the demanding needs of commercial fleets.

Cummins Male Union Part 203850 Compatibility

The Cummins Male Union part 203850 is a versatile component designed to fit a variety of Cummins engines, ensuring seamless integration and reliable performance across different engine models. This part is essential for maintaining the integrity of the fuel and coolant systems in these engines.

ISC CM554 and ISL CM554 Engines

The ISC CM554 and ISL CM554 engines, both part of the Cummins CM554 family, benefit from the Male Union part 203850. This component is crucial for the proper connection and sealing of fuel and coolant lines, ensuring optimal engine operation.

ISM CM570 and ISM CM570/870 Engines

The ISM CM570 and ISM CM570/870 engines also utilize the Male Union part 203850. This part is integral to the fuel and coolant systems of these engines, providing a secure and leak-proof connection that is essential for maintaining engine efficiency and reliability.

ISM CM876 and QSM11 CM876 Engines

The ISM CM876 and QSM11 CM876 engines are designed to work with the Male Union part 203850. This component ensures that the fuel and coolant systems are properly connected, contributing to the overall performance and longevity of these engines.

K19, K38, and K50 Engines

The K19, K38, and K50 engines are another set of Cummins engines that are compatible with the Male Union part 203850. This part is essential for the proper sealing and connection of fuel and coolant lines, ensuring that these engines operate efficiently and reliably.

L10 MECHANICAL and N14 MECHANICAL Engines

The Male Union part 203850 is also suitable for the L10 MECHANICAL and N14 MECHANICAL engines. This component ensures that the fuel and coolant systems are properly connected, contributing to the overall performance and longevity of these engines.

M11 CELECT PLUS and M11 MECHANICAL Engines

The M11 CELECT PLUS and M11 MECHANICAL engines are designed to work with the Male Union part 203850. This part is crucial for the proper connection and sealing of fuel and coolant lines, ensuring optimal engine operation.

NH/NT 855 Engine

The NH/NT 855 engine is another model that benefits from the Male Union part 203850. This component ensures that the fuel and coolant systems are properly connected, contributing to the overall performance and longevity of this engine.

QSC8.3 CM554 and QSC9 CM2250/QSL9 CM2250 Engines

The QSC8.3 CM554 and QSC9 CM2250/QSL9 CM2250 engines are compatible with the Male Union part 203850. This part is essential for the proper sealing and connection of fuel and coolant lines, ensuring that these engines operate efficiently and reliably.

QSL8.9 CM2150 L141, QSL9 CM2250, QSL9 CM2350 L102, QSL9 CM554, QSL9 CM850(CM2850), and QSNT14 CM876 N102 Engines

The QSL8.9 CM2150 L141, QSL9 CM2250, QSL9 CM2350 L102, QSL9 CM554, QSL9 CM850(CM2850), and QSNT14 CM876 N102 engines all utilize the Male Union part 203850. This component ensures that the fuel and coolant systems are properly connected, contributing to the overall performance and longevity of these engines.

QSM11 CM570, QSN14 CM876 N103, and QST30 CM552 Engines

The QSM11 CM570, QSN14 CM876 N103, and QST30 CM552 engines are designed to work with the Male Union part 203850. This part is crucial for the proper sealing and connection of fuel and coolant lines, ensuring optimal engine operation.

Role of Part 203850 Male Union in Engine Systems

The part 203850 Male Union is instrumental in ensuring the seamless integration and operation of various engine components. Its primary function is to facilitate secure and leak-proof connections between different parts of the engine system, enhancing overall performance and reliability.

Integration with Engine Components

  1. Cam Housing Module: The Male Union is often used to connect the cam housing module to other critical components, ensuring that the lubrication system remains intact and functions efficiently.

  2. Water Outlet Connection: In cooling systems, the Male Union connects the water outlet to the radiator or other cooling components, maintaining a consistent flow of coolant to regulate engine temperature.

  3. Fuel Pump Connections:

    • Connection FP Inlet: The Male Union is employed to link the fuel pump inlet to the fuel supply line, guaranteeing a steady fuel flow to the engine.
    • Conns. Fuel Pump: It also connects various fuel pump components, ensuring that the fuel delivery system operates smoothly.
  4. Fuel Filter System:

    • Fuel Filter Hose: The Male Union secures the fuel filter hose to the fuel lines, preventing leaks and ensuring clean fuel reaches the engine.
    • Fuel Filter Mounting: It aids in mounting the fuel filter securely within the engine bay, contributing to the filter’s stability and efficiency.
  5. Fuel Inlet Connection and Fitting: The Male Union is crucial for connecting the fuel inlet to the fuel lines and fittings, ensuring a reliable fuel supply to the engine.

  6. Gear Pump and Injector Connections:

    • Gear Pump: It connects the gear pump to the fuel lines, facilitating efficient fuel circulation.
    • Injector Stand Audit Kit: The Male Union is used in the injector stand audit kit to connect injectors to the fuel supply, ensuring precise fuel delivery.
  7. Oil Manifold and Plumbing:

    • Oil Manifold: The Male Union connects the oil manifold to various engine components, ensuring proper lubrication.
    • Plumbing Fuel Supply and Injector: It is used in the plumbing of the fuel supply and injector systems to maintain a secure and leak-free connection.
  8. Service Kit and Conversion Kit:

    • Service Kit: The Male Union is included in service kits to replace old or worn connections, ensuring the engine system remains in optimal condition.
    • Kit Conversion: It is used in conversion kits to adapt existing engine systems to new components, facilitating upgrades and modifications.
  9. Solenoid and Mounting Valve: The Male Union connects the solenoid and mounting valve to the fuel or lubrication lines, ensuring these components function correctly within the engine system.

  10. Step Control Valve: It connects the step control valve to the relevant lines, allowing for precise control over fuel or fluid flow within the engine.

The Male Union plays a significant role in maintaining the integrity and efficiency of the engine system by providing reliable connections between various components.

Conclusion

The Male Union 203850 is a critical component in the fluid systems of commercial trucks, ensuring efficient operation and reliability. Its design and construction features enhance performance and durability, while its ease of installation and maintenance make it a preferred choice for fleet operators and maintenance professionals. The compatibility of this Cummins part with a wide range of engines underscores its versatility and importance in maintaining the integrity of fuel and coolant systems. Proper installation, regular maintenance, and understanding its applications are key to maximizing the benefits of the Male Union 203850 in commercial truck operations.


  1. Boyce, M. P. (2002). Gas Turbine Engineering Handbook, Second Edition. Gulf Professional Publishing.

SPECIFICATIONS

Hazard Description
Non-Hazardous (NOI, ICE/Auto)
Comments
Service replacement o-ring
Package Dimensions
4.1 x 3.3 x 0.38 in
Weight
0.15 lbs
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.