3627703
Male Union Tee
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$309.95 $368.84

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 Tee, identified by part number 3627703, is a component manufactured by Cummins, a well-established name in the commercial vehicle industry. This part is integral to various fluid systems in commercial trucks, ensuring efficient operation and reliability. Cummins, known for its commitment to quality and innovation, provides this component as part of its extensive range of products designed for the demanding environments of commercial trucking 1.

Basic Concepts and Functionality

A Male Union Tee is a type of fitting used in fluid systems to connect three different lines, allowing for the distribution or merging of fluids. It consists of a male threaded end that connects to a female port, and two additional ports for fluid entry or exit. In commercial trucks, these fittings are commonly used in systems that require the combination or division of fluid flow, such as fuel, coolant, or hydraulic systems. The design of the Male Union Tee facilitates easy assembly and disassembly, which is beneficial for maintenance and repair operations 2.

Purpose and Role in Truck Operation

The 3627703 Male Union Tee serves a specific function within a truck’s fluid systems. It is designed to connect different sections of the system, allowing for the efficient transfer of fluids. Whether it is part of the fuel system, providing a junction for fuel lines, or within the coolant system, facilitating the merging of coolant flows, its role is to ensure that fluids are directed as needed without leakage or restriction. This contributes to the overall efficiency and reliability of the truck’s operation 3.

Key Features

The 3627703 Male Union Tee is characterized by several key features that enhance its performance and durability. It is constructed from high-quality materials, ensuring resistance to corrosion and wear. The fitting includes male threaded connections, which provide a secure and leak-proof seal when properly installed. Its design is optimized for ease of use, featuring smooth surfaces and precise threading that facilitate quick and reliable connections. These attributes contribute to the component’s longevity and effectiveness in demanding commercial truck applications.

Benefits

Incorporating the 3627703 Male Union Tee into a truck’s fluid system offers several advantages. It improves system efficiency by ensuring smooth and unrestricted fluid flow. The ease of installation and removal of this fitting simplifies maintenance procedures, reducing downtime. Additionally, its durable construction and reliable performance contribute to the overall reliability of the truck’s fluid systems, enhancing operational efficiency and reducing the need for frequent repairs.

Installation Considerations

When installing the 3627703 Male Union Tee, it is important to follow guidelines and best practices to ensure proper fitting and function. This includes using the necessary tools for installation, such as wrenches for tightening the connections, and ensuring that all surfaces are clean and free of debris before assembly. Proper alignment of the fitting is crucial to avoid leaks and ensure efficient fluid flow. Following these steps will help in achieving a secure and effective installation.

Troubleshooting and Maintenance

Common issues with the 3627703 Male Union Tee may include leaks at the connection points or blockages within the fitting. Diagnostic steps for identifying problems involve checking for signs of fluid leakage around the connections and ensuring that fluid flow is not restricted. Regular maintenance, such as inspecting the fitting for signs of wear or corrosion and tightening connections as needed, can help prolong the component’s lifespan and ensure reliable operation. Addressing issues promptly can prevent more significant problems and maintain the efficiency of the truck’s fluid systems.

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 customer satisfaction in the commercial vehicle industry. The company’s product range includes engines and components for on-highway and off-highway applications, demonstrating its commitment to innovation and excellence. Cummins’ dedication to quality is evident in its rigorous testing and quality control processes, ensuring that its products meet the high standards required for commercial vehicle applications.

Cummins Male Union Tee (Part Number 3627703) Compatibility

The Cummins Male Union Tee, identified by part number 3627703, is a versatile component designed to integrate seamlessly with various engine models. This part is engineered to fit specific configurations within the Cummins engine family, ensuring compatibility and reliability.

Engine Compatibility

  • 6B5.9 Engine: The Male Union Tee is engineered to fit within the 6B5.9 engine’s system, providing a critical connection point that maintains the integrity of the engine’s fluid pathways. Its design ensures that it can withstand the operational stresses of this engine model, contributing to overall performance and longevity.

  • K38 and K50 Engines: The Male Union Tee is also compatible with both the K38 and K50 engines. These engines, while distinct in their specifications and applications, share common design elements that allow the Male Union Tee to integrate effectively. The part’s precision engineering ensures it fits snugly, providing a secure and leak-free connection that is essential for the efficient operation of these engines.

The Male Union Tee’s compatibility across these engine models underscores its importance in maintaining the operational integrity of Cummins engines. Its design and material quality ensure it can meet the demands of various engine configurations, contributing to the overall reliability and performance of the engines it supports.

Role of Part 3627703 Male Union Tee in Engine Systems

The Part 3627703 Male Union Tee is integral to the efficient operation of various engine systems. It facilitates the connection and distribution of fluids and gases within the engine, ensuring optimal performance and reliability.

Aftercooler Core

In the aftercooler core, the Male Union Tee is used to manage the flow of coolant. It allows for the merging of two coolant lines into one, enhancing the cooling efficiency of the compressed air from the turbocharger. This ensures that the air entering the engine is at an optimal temperature, which is vital for combustion efficiency and engine longevity.

Camshaft and Gear

Within the camshaft and gear system, the Male Union Tee plays a role in the lubrication circuit. It connects the oil supply lines to the camshaft bearings, ensuring that the camshaft and its associated gears receive a consistent and adequate oil supply. This lubrication is essential for reducing friction and wear, thereby maintaining the smooth operation of the valve train.

Connection Oil Transfer and Oil Manifold

The Male Union Tee is often found in the connection oil transfer and oil manifold systems. It helps in distributing oil to various parts of the engine, such as the cylinder head and rocker housing. By providing a reliable connection point, it ensures that oil is efficiently transferred throughout the engine, supporting the lubrication needs of moving components.

Cylinder Head and Injectors

In the cylinder head, the Male Union Tee is used to connect the oil right bank supply connection to the injectors. This ensures that the injectors receive a steady oil flow, which is necessary for their proper functioning and longevity. The tee also aids in maintaining the correct oil pressure, which is crucial for the precise operation of the injectors.

Oil Control Valve

The oil control valve system benefits from the Male Union Tee by allowing for the precise management of oil flow to different engine components. It ensures that the valve can regulate oil pressure effectively, which is important for variable valve timing systems and overall engine performance.

Turbocharger and Protective Cover

In the turbocharger system, the Male Union Tee is used to connect the oil lines that lubricate the turbocharger bearings. This connection is vital for the turbocharger’s durability and efficiency. The protective cover around the turbocharger also relies on this component to ensure that oil lines are securely connected, preventing leaks and maintaining system integrity.

Rocker Housing

The rocker housing system uses the Male Union Tee to connect oil lines that supply lubrication to the rocker arms. This ensures that the rocker arms operate smoothly, reducing noise and wear. The consistent oil supply is essential for the reliable performance of the valve train.

Engine Instrument Panel

Finally, the engine instrument panel may incorporate the Male Union Tee in its plumbing to monitor oil pressure and flow. This connection point allows for accurate readings and ensures that any issues with the oil system can be quickly identified and addressed, contributing to the overall maintenance and performance of the engine.

Conclusion

The 3627703 Male Union Tee is a critical component in the fluid systems of commercial trucks, ensuring efficient operation and reliability. Its design, compatibility with various Cummins engines, and role in different engine systems highlight its importance in maintaining the performance and longevity of commercial vehicles. Proper installation, maintenance, and troubleshooting are essential to maximize the benefits of this Cummins part.


  1. Lejda, K., & Wos, P. (2012). Internal Combustion Engines. InTech.

  2. Berns, K., Dressler, K., Fleischmann, P., Grges, D., Kalmar, R., Sauer, B., Stephan, N., Teutsch, R., & Thul, M. (2018). Proceedings of the 5th Commercial Vehicle Technology Symposium CVT. Springer.

  3. Hilgers, M. (2023). Alternative Powertrains and Extensions to the Conventional Powertrain. Springer Nature.

SPECIFICATIONS

Service Part Topic
97T6-7
Hazard Description
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
5.2 x 4.5 x 2.5 in
Weight
0.144 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.