4986220
Flexible Hose
Cummins®

The Cummins 4986220 Flexible Hose Assembly is a critical component for commercial trucks, facilitating the transfer of fluids within the vehicle’s systems. Understanding its purpose and functionality is essential for maintaining the efficiency and safety of truck operations.

Basic Concepts of Flexible Hose Assemblies

Flexible hose assemblies are integral to fluid transfer systems, connecting rigid pipes or components and allowing for movement and vibration without compromising the fluid pathway’s integrity. These assemblies are typically made from materials like rubber, thermoplastic, or metal, chosen for their flexibility, durability, and resistance to specific fluids ¹.

Purpose of the 4986220 Flexible Hose Assembly

This Cummins part is vital for the operation of a truck, especially within systems requiring fluid transfer under varying conditions. It is part of systems that may include coolant, fuel, or hydraulic fluid transfer. The assembly allows for necessary flexibility in these systems, accommodating the movement and vibrations typical in truck operations while ensuring a secure and leak-free connection ².

Key Features

The 4986220 Flexible Hose Assembly is characterized by its design and the materials used in its construction. It is made from high-quality materials that offer resistance to the specific fluids it transports, as well as to the environmental conditions it may encounter. Its design includes features that enhance its flexibility, durability, and ease of installation, ensuring it can withstand the rigors of commercial truck use ³.

Benefits

The use of the 4986220 Flexible Hose Assembly offers several benefits. Its flexibility allows for greater movement and vibration absorption, reducing the risk of damage to the hose or connected components. It also provides resistance to wear and tear, contributing to the safety and efficiency of fluid transfer within the truck. Additionally, its design and materials contribute to the overall reliability and longevity of the truck’s fluid transfer systems.

Installation

Installing the 4986220 Flexible Hose Assembly requires attention to detail to ensure a proper fit and connection. Guidelines recommend using the appropriate tools and equipment for a secure installation. Steps include preparing the connection points, ensuring the assembly is correctly aligned, and tightening connections to the manufacturer’s specifications to prevent leaks and ensure optimal performance.

Maintenance

Regular maintenance of the 4986220 Flexible Hose Assembly is recommended to ensure its longevity and optimal performance. This includes routine inspections for signs of wear, damage, or leaks, cleaning as necessary, and following replacement guidelines to prevent failures. Proper maintenance contributes to the safety and efficiency of the truck’s fluid transfer systems.

Troubleshooting

Common issues with the 4986220 Flexible Hose Assembly may include leaks or blockages. Troubleshooting these problems involves identifying the source of the issue, whether it be a damaged section of the hose, a loose connection, or contamination within the fluid transfer system. Addressing these issues promptly can prevent more significant problems and ensure the continued safe operation of the truck.

Safety Considerations

When working with the 4986220 Flexible Hose Assembly, it is important to follow safety considerations to prevent accidents and ensure compliance with safety regulations. This includes proper handling and storage of the assembly, using appropriate personal protective equipment, and disposing of the assembly in accordance with environmental regulations. These practices help maintain a safe working environment and protect the integrity of the truck’s fluid transfer systems.

Cummins 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 in the commercial truck industry. The company’s commitment to excellence is reflected in its products, including the 4986220 Flexible Hose Assembly, designed to meet the demanding requirements of commercial truck operations.

Cummins Flexible Hose Assembly 4986220 Compatibility

The Cummins Flexible Hose Assembly 4986220 is designed to fit seamlessly with a range of Cummins engines, ensuring optimal performance and reliability. This part is engineered to meet the specific needs of various engine configurations, providing a critical connection in the engine’s system.

QSK19 and CM2350 Engines

The QSK19 and CM2350 engines, both known for their robust performance and efficiency, are compatible with the Flexible Hose Assembly 4986220. This part is crucial in maintaining the integrity of the engine’s fluid systems, ensuring that the engines operate smoothly and efficiently.

K105 Engine

The K105 engine, another member of the Cummins engine family, also benefits from the Flexible Hose Assembly 4986220. This part is designed to withstand the rigors of heavy-duty applications, providing a reliable connection that can endure the demanding conditions these engines often face.

Grouping of Engines

The QSK19 and CM2350 engines, while distinct in their applications, share a commonality in their design and operational requirements. The Flexible Hose Assembly 4986220 is engineered to fit both these engines, ensuring that the fluid systems remain intact and efficient. This compatibility allows for easier maintenance and reduces downtime, making it a valuable component for these engines.

The K105 engine, on the other hand, represents a different segment of Cummins’ engine lineup, typically used in applications that demand high power and durability. The Flexible Hose Assembly 4986220 is designed to meet these specific needs, providing a reliable connection that can handle the stresses of heavy-duty operations.

Role of Part 4986220 Flexible Hose Assembly in Engine Systems

The 4986220 Flexible Hose Assembly is a critical component in various engine systems, facilitating the efficient transfer of fluids while accommodating the dynamic movements and vibrations inherent in engine operation.

Fuel System Integration

In the fuel system, the 4986220 Flexible Hose Assembly connects the fuel tank to the fuel pump and subsequently to the engine’s fuel injectors. This setup ensures a consistent and uninterrupted flow of fuel, which is vital for maintaining engine performance. The flexibility of the hose allows it to withstand the vibrations and movements of the fuel tank and engine components without compromising the fuel supply.

Cooling System Functionality

Within the engine’s cooling system, the 4986220 Flexible Hose Assembly links the radiator to the engine block and other critical cooling components. It enables the circulation of coolant, which absorbs heat from the engine and transfers it to the radiator for dissipation. The hose’s flexibility is particularly beneficial in this application, as it can accommodate the thermal expansion and contraction of the engine components without risking leaks or failures.

Emission Control System

In the emission control system, the 4986220 Flexible Hose Assembly is used to connect various components such as the Evaporative Emission Control (EVAP) system and the Positive Crankcase Ventilation (PCV) system. These connections ensure that harmful emissions are properly managed and redirected, contributing to a cleaner and more efficient engine operation. The hose’s flexibility helps in maintaining a secure fit around moving parts, ensuring that emission control systems function effectively.

Auxiliary Systems

Beyond the primary engine systems, the 4986220 Flexible Hose Assembly is also employed in auxiliary systems such as the power steering fluid lines and the brake fluid lines. In these applications, the hose ensures the smooth transfer of fluids under pressure, accommodating the movement and vibration of the steering and braking components. This reliability is essential for the safe and efficient operation of these systems.

Corrosion Resistance

The material composition of the 4986220 Flexible Hose Assembly is designed to resist corrosion, which is particularly important in environments where the hose may be exposed to road salts, chemicals, or other corrosive agents. This resistance ensures longevity and reliability, reducing the need for frequent replacements and maintenance.

Electrical System Interaction

In some engine systems, the 4986220 Flexible Hose Assembly may interact with electrical components, such as sensors that monitor fluid levels or pressure. The hose’s design must accommodate these interactions without interfering with the electrical signals, ensuring accurate readings and system performance.

Conclusion

The 4986220 Flexible Hose Assembly plays a multifaceted role in engine systems, providing the necessary flexibility, durability, and corrosion resistance to ensure the efficient and reliable operation of various fluid transfer applications. Its compatibility with a range of Cummins engines, including the QSK19, CM2350, and K105, underscores its importance in maintaining the integrity and performance of these engines.