4019966
Flexible Hose
Cummins®

Introduction

The Cummins 4019966 Flexible Hose is a component designed for use in commercial trucks. It plays a role in the truck’s systems by facilitating the transfer of fluids or gases. Its function is significant for maintaining the operational efficiency and reliability of the vehicle.

Basic Concepts of Flexible Hoses

Flexible hoses are components used in various automotive systems to transfer fluids or gases. They are designed to accommodate movement and vibration, which are common in vehicle operations. Flexible hoses allow for the routing of fluids or gases around obstacles and through spaces where rigid pipes would not fit. They are important for systems that require flexibility in their connections, such as fuel, coolant, and brake systems ¹.

Purpose of the Cummins 4019966 Flexible Hose

The Cummins 4019966 Flexible Hose is utilized in commercial trucks to connect specific systems and transport particular fluids or gases. It is engineered to withstand the pressures and temperatures associated with its intended use, ensuring reliable performance in demanding environments ².

Key Features

The Cummins 4019966 Flexible Hose boasts several key features that enhance its performance and longevity. These include a material composition that provides resistance to wear and environmental factors, flexibility that allows for movement without compromising integrity, durability to withstand operational stresses, and a design that ensures easy installation and compatibility with the systems it serves ³.

Benefits

The use of the Cummins 4019966 Flexible Hose offers several benefits. It contributes to improved system reliability by reducing the risk of leaks and maintaining consistent fluid or gas flow. Its flexibility allows for more efficient routing within the truck’s chassis, and its durability can lead to potential cost savings over time by reducing the frequency of replacements ⁴.

Installation Considerations

When installing the Cummins 4019966 Flexible Hose, it is important to follow guidelines and best practices to ensure proper fitting and securement. This includes verifying compatibility with existing systems, using appropriate clamps or fittings, and ensuring that the hose is routed in a manner that avoids sharp bends or excessive stress ⁵.

Troubleshooting Common Issues

Common issues with flexible hoses may include leaks, kinks, or degradation over time. Troubleshooting these problems involves inspecting the hose for signs of wear, ensuring proper installation, and replacing the hose if it shows signs of damage or failure ⁶.

Maintenance Tips

Regular maintenance of the Cummins 4019966 Flexible Hose is recommended to ensure its continued reliable operation. This includes periodic inspections for signs of wear or damage, cleaning as necessary to remove contaminants, and replacing the hose when it reaches the end of its service life or shows significant signs of degradation ⁷.

About Cummins

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 commitment to quality, Cummins serves customers in approximately 190 countries and territories through a network of company-owned and independent distributor facilities and dealerships. The company’s product range includes engines and related technology, as well as filtration systems, providing solutions for transportation, construction, agricultural, mining, power generation, and other industries.

Cummins Flexible Hose Part 4019966 Compatibility

The Cummins Flexible Hose part number 4019966 is designed to integrate seamlessly with a range of Cummins engines, ensuring efficient and reliable performance. This part is engineered to meet the stringent demands of various engine applications, providing flexibility and durability.

Engine Compatibility

• 6B5.9 Series: The 4019966 flexible hose is specifically engineered to fit the 6B5.9 engine series. Its design allows for precise alignment and secure attachment, accommodating the unique layout and requirements of this engine model.

• Other Cummins Engines: While the primary focus is on the 6B5.9 series, this flexible hose is also compatible with other Cummins engines that share similar design parameters and operational needs. Its versatile construction ensures it can be adapted to various engine configurations within the Cummins lineup.

Installation and Performance

The installation of the 4019966 flexible hose is straightforward, designed to simplify maintenance and reduce downtime. Its flexibility allows for easy maneuvering around engine components, while its robust construction ensures it can withstand the rigors of engine operation.

The hose’s design facilitates smooth fluid transfer, minimizing leaks and ensuring optimal engine performance. Its compatibility with multiple Cummins engine models underscores its versatility and reliability in diverse applications.

Role of Part 4019966 Flexible Hose in Engine Systems

The 4019966 Flexible Hose is an integral component in the efficient operation of various engine systems, particularly those involving fuel delivery and management. Its application extends across several key components, ensuring seamless and reliable performance.

Fuel Manifold Integration

In the context of a fuel manifold, the 4019966 Flexible Hose facilitates the distribution of fuel to multiple injectors or carburetors. This hose allows for the necessary flexibility to accommodate the dynamic movements and vibrations inherent in engine operation, ensuring a consistent fuel supply without the risk of leaks or disconnections.

Fuel Plumbing Applications

When incorporated into fuel plumbing systems, the 4019966 Flexible Hose plays a significant role in connecting various fuel system components, such as the fuel tank, fuel pump, and fuel filter. Its flexibility mitigates the stress on connections, reducing the likelihood of cracks or breaks that could lead to fuel leaks. This is particularly important in high-performance engines where vibrations and thermal expansion are more pronounced.

General Plumbing Usage

Beyond fuel-specific applications, the 4019966 Flexible Hose is also utilized in general plumbing within engine systems. This includes coolant systems where it helps manage the flow of coolant to and from the engine block, radiator, and other cooling components. The hose’s flexibility ensures that it can withstand the pressure fluctuations and temperature variations without compromising the integrity of the cooling system.

Enhanced Fuel System Reliability

In fuel systems, the 4019966 Flexible Hose contributes to the overall reliability by providing a durable yet flexible connection between rigid components. This is essential in maintaining the precise fuel delivery required for optimal engine performance. The hose’s design allows it to absorb shocks and vibrations, which are common in the operating environment of an engine, thereby prolonging the lifespan of the fuel system components.

Conclusion

The 4019966 Flexible Hose is a versatile and reliable component that enhances the functionality and durability of engine systems by providing flexible, secure connections in fuel and general plumbing applications. Its compatibility with various Cummins engines, ease of installation, and robust performance make it a valuable asset in maintaining the efficiency and reliability of commercial truck operations.