4019521
Flexible Hose
Cummins®

The Cummins 4019521 Flexible Hose is a component designed for use in commercial trucks. It serves a specific function within the vehicle’s system, contributing to the overall efficiency and reliability of the truck. Cummins, the manufacturer, is well-regarded in the industry for producing high-quality automotive components ¹.

Basic Concepts of Flexible Hoses

Flexible hoses are used in various automotive systems to transport fluids and gases between different components. They are designed to accommodate movement and vibration, which are common in vehicle operations. These hoses are typically made from materials like rubber, thermoplastic, or metal, each offering distinct properties such as flexibility, durability, and resistance to various environmental factors ².

Purpose of the Cummins 4019521 Flexible Hose

The Cummins 4019521 Flexible Hose is engineered to connect specific systems or components within a truck. It facilitates the transport of fluids or gases, ensuring that these elements reach their intended destinations efficiently. The hose’s design allows it to withstand the pressures and temperatures associated with its specific application ³.

Key Features

The Cummins 4019521 Flexible Hose incorporates several design elements and materials that enhance its performance. These may include reinforced layers for added strength, specialized coatings for resistance to chemicals or high temperatures, and a construction that allows for significant flexibility without compromising integrity.

Benefits

Using the Cummins 4019521 Flexible Hose in commercial trucks offers several advantages. Its flexibility accommodates the movement inherent in truck operations, reducing the risk of damage from vibration or shifting components. The materials used in its construction provide resistance to wear and tear, contributing to a longer service life. Additionally, features designed to enhance safety, such as burst-resistant layers, help protect against potential hazards.

Installation Considerations

When installing the Cummins 4019521 Flexible Hose, it is important to follow guidelines to ensure proper fitting and securement. This includes verifying compatibility with the truck’s existing systems, using appropriate clamps or fittings, and ensuring that the hose is routed in a manner that avoids sharp edges or excessive bending.

Troubleshooting and Maintenance

Common issues with flexible hoses may include leaks, cracks, or reduced flexibility over time. Regular inspection for signs of wear or damage is recommended. Maintenance practices, such as cleaning the hose and its connections, and replacing it according to the manufacturer’s guidelines, can help ensure optimal performance and longevity.

Safety Precautions

Handling, installing, or maintaining the Cummins 4019521 Flexible Hose requires observing certain safety measures. This includes wearing appropriate personal protective equipment, ensuring the truck is properly supported during installation, and being aware of potential hazards such as high-pressure fluids or gases.

Cummins Overview

Cummins Inc. is a leading manufacturer in the automotive components industry, known for its commitment to quality and innovation. With a history of producing reliable and efficient parts, Cummins continues to be a trusted name among commercial truck operators and maintenance professionals.

Cummins Engine Part 4019521: Flexible Hose Compatibility

The Cummins part 4019521, a Flexible Hose, is designed to integrate seamlessly with a range of Cummins engines, ensuring optimal performance and reliability. This part is crucial for maintaining the fluid dynamics within the engine systems, providing flexibility and durability in various operational conditions.

K19 Engines

The K19 engine series benefits significantly from the use of the 4019521 Flexible Hose. This component is engineered to fit precisely within the K19’s fluid transfer systems, ensuring that the engine operates smoothly without leaks or restrictions. The flexibility of the hose allows it to adapt to the engine’s movements and thermal expansions, thereby enhancing the longevity and efficiency of the engine.

QSK19 and CM850 Engines

For the QSK19 and CM850 engines, the 4019521 Flexible Hose is a critical component in the engine’s fluid management systems. These engines, known for their robust performance, require high-quality hoses that can withstand the rigors of heavy-duty operations. The part’s design ensures that it can handle the high pressures and temperatures typical of these engines, providing a reliable connection that minimizes the risk of fluid leaks and system failures.

MCRS Engines

The MCRS engine series also integrates the 4019521 Flexible Hose effectively. This engine, designed for versatility and efficiency, relies on the hose’s flexibility to maintain fluid pathways under various conditions. The part’s compatibility with the MCRS engine ensures that the engine’s fluid systems operate without disruptions, contributing to the overall performance and reliability of the engine.

By ensuring a precise fit and reliable performance, the Cummins part 4019521 Flexible Hose is an essential component for the K19, QSK19, CM850, and MCRS engines, enhancing their operational efficiency and durability.

Role of Part 4019521 Flexible Hose in Engine Systems

The part 4019521 Flexible Hose is an essential component in various engine systems, facilitating the smooth transfer of fluids under varying conditions.

Drain Systems

In drain systems, the flexible hose allows for the efficient removal of unwanted fluids, such as coolant or oil, from the engine. Its flexibility accommodates the movement and vibrations inherent in engine operation, ensuring a secure and leak-free connection between the drain points and the collection containers.

Remote Oil Systems

For remote oil systems, the 4019521 Flexible Hose plays a significant role in transporting oil from the engine to an external oil reservoir. This setup is particularly beneficial in high-performance or custom engine builds where additional cooling or filtration is required. The hose’s flexibility ensures that it can route around engine components without kinking or restricting flow.

Plumbing Systems

In general plumbing systems within the engine compartment, the flexible hose is used to connect various components such as sensors, filters, and coolers. Its ability to bend and twist makes it ideal for navigating tight spaces and complex routing paths, maintaining a consistent flow of fluids without the risk of damage from engine vibrations.

Lubricating Oil Pump Systems

When integrated into lubricating oil pump systems, the 4019521 Flexible Hose ensures that oil is delivered efficiently from the pump to the various lubrication points within the engine. This is vital for maintaining proper lubrication of moving parts, reducing friction, and enhancing the overall longevity and performance of the engine. The hose’s durability under pressure and temperature fluctuations is key to its reliable operation in this application.

Conclusion

The Cummins 4019521 Flexible Hose is a vital component in the maintenance and operation of commercial trucks, particularly those equipped with Cummins engines. Its design and material composition ensure it can withstand the pressures and temperatures of its applications, providing a reliable and efficient means of transporting fluids and gases within the engine systems. Regular maintenance and proper installation are key to maximizing the benefits of this part, ensuring the longevity and performance of the truck’s engine systems.