3356349
Elbow Hose Coupling
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$32.95 $39.21

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 3356349 Elbow Hose Coupling, manufactured by Cummins, is a component designed for use in commercial truck operations. Cummins, a well-established name in the industry, produces this coupling to meet the demanding requirements of heavy-duty applications. This part is integral to the efficient functioning of various truck systems, ensuring reliable performance and durability under challenging conditions 1.

Basic Concepts of Elbow Hose Couplings

An elbow hose coupling is a fitting used to connect hoses at an angle, facilitating the transfer of fluids within a system. These couplings are designed to provide a secure connection that can withstand pressure and movement, ensuring the smooth operation of fluid systems in trucks. They play a role in directing fluid flow between components, accommodating the spatial constraints and dynamic movements inherent in vehicle systems 2.

Purpose of the 3356349 Elbow Hose Coupling

The 3356349 Elbow Hose Coupling is specifically engineered to connect hoses in the cooling and hydraulic systems of trucks. It facilitates the transfer of coolant and hydraulic fluid, contributing to the efficient operation of the engine and other hydraulic components. By providing a reliable connection point, it helps maintain system integrity and performance 3.

Key Features

The 3356349 features a robust design that includes high-quality materials such as durable polymers and metals. Its construction is tailored to resist corrosion, abrasion, and the high pressures typical in truck systems. The coupling incorporates precise engineering to ensure a snug fit and secure seal, minimizing the risk of leaks. Additionally, it is designed to accommodate a range of hose sizes, enhancing its versatility in various applications.

Benefits

The advantages of the 3356349 include improved system efficiency through secure and leak-free connections. Its durable construction reduces the need for frequent maintenance, offering long-term reliability. The coupling’s ability to withstand harsh operating conditions ensures consistent performance, contributing to the overall efficiency and longevity of the truck’s systems.

Installation Considerations

Proper installation of the 3356349 involves adhering to specific torque specifications to ensure a secure connection without over-tightening, which could damage the coupling or hoses. Alignment is crucial to prevent stress on the connection points and to maintain the integrity of the fluid flow. Compatibility with other system components should be verified to ensure seamless integration and operation.

Troubleshooting Common Issues

Common issues with elbow hose couplings, such as leaks or connection failures, can often be traced to improper installation, wear and tear, or incompatible components. Troubleshooting steps include inspecting the coupling for signs of damage, ensuring correct alignment and torque, and verifying compatibility with the system’s hoses and fittings. Addressing these issues promptly can prevent system failures and ensure continued reliable operation.

Maintenance Tips

To ensure the longevity and optimal performance of the 3356349, routine maintenance is recommended. This includes regular inspections for signs of wear, corrosion, or leaks. Cleaning the coupling and its connections can prevent buildup that might affect performance. Following manufacturer guidelines for inspection intervals and maintenance procedures will help maintain the coupling’s efficiency and reliability.

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 spanning over a century, Cummins has established a reputation for quality, innovation, and reliability in the commercial truck industry. The company’s extensive product range and commitment to excellence underpin the quality and performance of components like the 3356349.

Compatibility of 3356349 with Cummins Engines

The 3356349 is designed to fit seamlessly with several Cummins engine models. This part is integral in ensuring the proper connection and functionality of hoses within the engine’s cooling and exhaust systems.

Cummins 4B3.9 and 6B5.9 Engines

The 4B3.9 and 6B5.9 engines are part of Cummins’ range of medium-duty diesel engines. These engines are known for their robust performance and reliability, often used in various commercial applications. The 3356349 is specifically engineered to fit these engines, providing a secure and leak-proof connection for the hoses that are critical for maintaining the engine’s operational efficiency.

Cummins B4.5 Engine

The B4.5 engine is another model in Cummins’ lineup, recognized for its compact design and high power output. This engine is frequently utilized in smaller commercial vehicles and machinery. The 3356349 is compatible with the B4.5 engine, ensuring that the hose connections are both reliable and durable, which is essential for the engine’s performance and longevity.

Cummins QSB3.9 and 30 CM550 Engines

The QSB3.9 and 30 CM550 engines are part of Cummins’ small-bore engine series, designed for a variety of applications, including generators, pumps, and other industrial equipment. These engines are valued for their efficiency and ease of maintenance. The 3356349 is designed to fit these engines, providing a critical connection point for hoses that manage the flow of fluids within the engine’s systems. This ensures that the engines operate smoothly and efficiently, with minimal risk of leaks or failures.

Role of 3356349 in Engine Systems

The 3356349 is an essential component in various engine systems, facilitating the efficient transfer and management of fluids. Its primary function is to connect and direct the flow between different sections of the fuel system, ensuring a seamless and secure connection.

Fuel System Integration

In the fuel system, the 3356349 is often used to connect the fuel inlet to the fuel pump. This connection is vital for maintaining the integrity of the fuel line, preventing leaks, and ensuring that the fuel pump receives a consistent supply of fuel. The coupling’s design allows for flexibility in routing the hose, which is particularly useful in compact engine compartments where space is at a premium.

Fuel Transfer Applications

During fuel transfer operations, the 3356349 plays a significant role in connecting the transfer pump to the fuel lines. This setup ensures that fuel can be efficiently moved from one tank to another without the risk of spills or leaks. The coupling’s robust construction handles the pressure variations common in fuel transfer processes, providing a reliable connection point.

Fitting and Accessories

The 3356349 is also commonly used with various fittings and accessories within the engine system. For instance, it can be employed to connect aftermarket accessories that require a fuel supply, such as auxiliary fuel tanks or performance enhancement devices. The coupling’s versatility allows it to adapt to different fitting sizes and types, making it a versatile component in custom engine builds or modifications.

Overall Functionality

Overall, the 3356349 enhances the functionality and reliability of engine systems by providing a secure, flexible, and leak-proof connection between critical components. Its application in fuel systems, fuel transfer operations, and with various fittings and accessories underscores its importance in maintaining efficient and safe engine performance.

Conclusion

The 3356349 Elbow Hose Coupling is a critical component in the operation of commercial truck engines, offering reliable and efficient fluid transfer capabilities. Its robust design, compatibility with various Cummins engines, and versatile applications make it an indispensable part of engine systems. Proper installation, maintenance, and troubleshooting are essential to ensure its optimal performance and longevity.


  1. Denton, T., & Pells, H. (2022). Automotive Technician Training, Second Edition. Routledge.

  2. Gillespie, T. D. (2021). Fundamentals of Vehicle Dynamics. SAE International.

  3. Bennett, S. (2012). Modern Diesel Technology Light Duty Diesels. Cengage Learning.

SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
* 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.