3639114
Flexible Hose
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$184.95 $220.09

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 3639114 Coupling Nipple, manufactured by Cummins, is a component designed for use in commercial truck operations. Cummins, a well-established name in the industry, produces this part to meet the demanding requirements of heavy-duty applications. This Cummins part is integral to the efficient operation of fluid systems in trucks, ensuring reliable connections and performance.

Basic Concepts of Coupling Nipples

A coupling nipple is a short pipe fitting used to connect two sections of pipe or other fittings. Its general function in fluid systems is to provide a secure and leak-free connection, facilitating the transfer of fluids such as hydraulic oil or fuel 1. In the context of a truck’s hydraulic or fuel system, coupling nipples play a role in maintaining the integrity of the system by ensuring that connections are tight and fluid flow is uninterrupted.

Purpose of the 3639114 Coupling Nipple

The 3639114 serves a specific role in the operation of a truck by connecting different components within the system. It is designed to link sections of piping or other fittings, allowing for the efficient transfer of fluids. This part ensures that the connections within the system remain secure, which is vital for the overall performance and reliability of the truck’s fluid systems.

Key Features

The 3639114 is constructed with materials that offer durability and resistance to the harsh conditions often encountered in commercial truck operations. It features a design that includes specific connection types, such as threaded or push-to-connect, which cater to various installation needs. Unique attributes of this coupling nipple may include corrosion-resistant coatings or enhanced sealing mechanisms that contribute to its performance and longevity 2.

Benefits

Using the 3639114 provides several advantages. It contributes to improved system efficiency by ensuring secure connections that prevent leaks. The design of this coupling nipple also facilitates ease of installation, reducing downtime during maintenance procedures. Additionally, its reliability under various operating conditions makes it a valuable component for ensuring the consistent performance of a truck’s fluid systems.

Installation Process

Proper installation of the 3639114 involves several steps to ensure a secure and effective connection. The process may require specific tools, such as wrenches or torque wrenches, to achieve the correct tightness without over-tightening. Best practices include cleaning the connection points before installation, applying the appropriate sealant if necessary, and following the manufacturer’s torque specifications to prevent damage to the fitting or connected components 3.

Maintenance Tips

Regular maintenance of the 3639114 is important for ensuring its longevity and optimal performance. This includes periodic inspection for signs of wear or damage, such as corrosion or leaks. Cleaning the coupling nipple and its connections as part of routine maintenance can prevent buildup that may affect performance. Following the manufacturer’s recommended inspection intervals and maintenance procedures will help maintain the integrity of the fluid system.

Troubleshooting Common Issues

Common issues with the 3639114 may include leaks or connection failures. Troubleshooting these problems involves inspecting the fitting for damage, ensuring that it is properly installed and tightened, and checking for any signs of wear or corrosion. Solutions may range from tightening the connection to replacing the coupling nipple if it is damaged or worn.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and a broad product range, Cummins has established a reputation for quality and reliability within the commercial truck industry. The company’s commitment to excellence is reflected in its parts, including the 3639114, which is designed to meet the rigorous demands of heavy-duty applications.

Coupling Nipple 3639114 in Cummins Engines

The 3639114 is a critical component in Cummins engines, ensuring the proper connection and operation of various parts within the engine system. This part is designed to fit seamlessly into the engine architecture, providing a reliable interface between different components.

QSK38 CM2150 MCRS and QSK50 CM2150 MCRS

For the QSK38 CM2150 MCRS and QSK50 CM2150 MCRS engines, the 3639114 plays a vital role in maintaining the integrity of the fuel and lubrication systems. These engines, known for their robust performance and efficiency, require precise connections to ensure smooth operation and longevity. The coupling nipple is engineered to withstand the high pressures and temperatures typical of these engines, ensuring a secure and leak-free connection.

QSK50 CM2350 K108

In the QSK50 CM2350 K108 engine, the 3639114 is equally important. This engine variant, designed for heavy-duty applications, demands components that can handle significant stress and wear. The coupling nipple in this engine is positioned to connect critical parts, ensuring that the engine operates at peak efficiency. Its design allows for easy installation and removal, facilitating maintenance and repairs.

The coupling nipple’s compatibility across these engines highlights its versatility and importance in Cummins’ engine lineup. Whether in the QSK38 CM2150 MCRS, QSK50 CM2150 MCRS, or QSK50 CM2350 K108, this part is a testament to Cummins’ commitment to quality and reliability.

Role of Part 3639114 Coupling Nipple in Engine Systems

The 3639114 is an essential component in various engine systems, particularly those involving air compressors and compressors. Its primary function is to facilitate the secure and efficient connection between different sections of the air system, ensuring that air flows smoothly and without leaks.

In an air compressor system, the Coupling Nipple is used to connect the compressor to the air tank or to other components within the system. This connection is vital for maintaining the integrity of the pressurized air system, as any leaks can result in a loss of efficiency and performance. The Coupling Nipple ensures that the connection is tight and reliable, allowing the compressor to operate at optimal levels.

Similarly, in a compressor system, the Coupling Nipple plays a significant role in connecting the compressor to the intake and exhaust systems. This ensures that the compressed air is delivered efficiently to the various parts of the engine that require it. The secure connection provided by the Coupling Nipple helps in maintaining the pressure levels necessary for the compressor to function correctly.

Overall, the 3639114 is a key component in ensuring that air systems within engine components operate smoothly and efficiently. Its role in connecting various parts of the system cannot be overstated, as it directly impacts the performance and reliability of the entire system.

Conclusion

The 3639114 Coupling Nipple is a vital component in the operation of commercial trucks and Cummins engines, ensuring secure and efficient connections within fluid and air systems. Its design, featuring durable materials and reliable connection mechanisms, contributes to the overall performance and reliability of these systems. Proper installation, regular maintenance, and timely troubleshooting of common issues are essential for maximizing the lifespan and effectiveness of this part. Cummins’ commitment to quality and reliability is evident in the design and functionality of the 3639114, making it a cornerstone component in heavy-duty applications.


  1. Harrison, Matthew. Controlling Noise and Vibration in Road Vehicles. SAE International, 2004.

  2. Boyce, Meherwan P. Gas Turbine Engineering Handbook, Second Edition. Gulf Professional Publishing, 2002.

  3. Robert Bosch GmbH. Bosch Automotive Handbook 9th Edition. Robert Bosch GmbH, 2014.

SPECIFICATIONS

Package Dimensions
38.7 x 3.0 x 1.8 in
Weight
0.107 lb
* 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.