4991228
Molded Hose
Cummins®

The 4991228 Molded Rubber Hose is a component manufactured by Cummins, a well-established name in the commercial truck industry. This hose is specifically designed for use in commercial trucks, where it plays a role in the vehicle’s fluid transport systems.

Basic Concepts of Molded Rubber Hoses

Molded rubber hoses are specialized components used in various automotive and industrial applications. These hoses are constructed by molding rubber around a reinforcing material, typically a textile or wire braid, to enhance durability and flexibility. The materials used in these hoses are chosen for their ability to withstand high temperatures, pressures, and chemical exposure. Molded rubber hoses are commonly employed in automotive systems for transporting fluids such as coolant, fuel, and hydraulic fluid ¹.

Purpose of the 4991228 Molded Rubber Hose

This Cummins part serves a specific function within the operation of a truck. It connects various systems and facilitates the transport of fluids essential for the truck’s performance. This hose is integral to maintaining the efficiency and reliability of the truck’s fluid systems.

Key Features

The 4991228 is characterized by several key features that enhance its performance and durability. Its design incorporates high-quality rubber materials and a robust reinforcing structure. These elements contribute to the hose’s flexibility, resistance to high temperatures and pressures, and overall longevity. The hose’s construction ensures it can withstand the demanding conditions encountered in commercial truck applications ².

Benefits

This part offers several benefits over other hose types. Its improved flexibility allows for easier installation and better accommodation of the dynamic movements within a truck’s engine compartment. The hose’s resistance to high temperatures and pressures ensures reliable performance under various operating conditions. Additionally, its durability contributes to a longer service life, reducing the need for frequent replacements.

Installation Considerations

Proper installation of the 4991228 is crucial for ensuring its effective performance. Considerations include ensuring the correct fitment, using appropriate securing methods to prevent leaks, and verifying compatibility with other components in the system. Careful attention to these factors during installation will help maintain the hose’s integrity and functionality.

Troubleshooting Common Issues

Common issues that may arise with the 4991228 include leaks, cracks, or degradation over time. Troubleshooting these problems involves inspecting the hose for signs of wear or damage, checking connections for proper fit and security, and addressing any environmental factors that may contribute to hose deterioration. Prompt identification and resolution of these issues can help maintain the hose’s performance and extend its service life.

Maintenance Tips

To ensure optimal performance and longevity of the 4991228, regular maintenance is recommended. This includes conducting periodic inspections to check for signs of wear, damage, or leaks. Additionally, practicing good care habits, such as keeping the hose clean and free from debris, can help prevent premature degradation. Following these maintenance tips will contribute to the hose’s reliable operation and durability.

Cummins Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its wide range of high-quality products. With a rich history of innovation and excellence, Cummins has established a strong reputation for producing reliable and efficient components. The company’s commitment to quality and performance is evident in its product offerings, including the 4991228, which is designed to meet the demanding requirements of commercial truck applications.

Cummins Molded Rubber Hose Part 4991228 Compatibility

The Cummins molded rubber hose part number 4991228 is designed to fit seamlessly with specific engine models, ensuring optimal performance and durability. This hose is engineered to meet the stringent requirements of the ISB CM2150 and ISB6.7 CM2250 engines, providing a reliable connection for various fluid systems within these engines.

For the ISB CM2150 engine, the hose is integral to the engine’s cooling system, ensuring efficient coolant flow and maintaining the engine’s operational temperature. Its placement and design are critical to prevent leaks and maintain system integrity.

Similarly, in the ISB6.7 CM2250 engine, the hose plays a role in the engine’s lubrication system, facilitating the smooth flow of oil to various engine components. The hose’s flexibility and durability are essential for withstanding the high pressures and temperatures typical of engine environments.

Both engines benefit from the hose’s precise fit and robust construction, ensuring that it can endure the rigors of continuous operation without degradation. This compatibility is crucial for maintaining engine performance and longevity, making the part 4991228 a key component in the maintenance and repair of these Cummins engines ³.

Role of Part 4991228 Molded Rubber Hose in Engine Systems

The 4991228 is integral to the efficient operation of several engine systems, particularly in managing fluid dynamics and maintaining system integrity.

Crankcase Breather Plumbing

In crankcase breather systems, the 4991228 hose facilitates the release of pressure built up within the crankcase. This is essential for preventing oil contamination and ensuring that the crankcase does not become over-pressurized, which could lead to oil leaks or engine damage. The hose connects the crankcase to the breather valve, allowing gases to escape while preventing oil mist from entering the atmosphere.

General Plumbing Applications

Beyond the crankcase breather, the 4991228 hose is versatile in various plumbing applications within the engine system. It is often used to connect different components that require fluid transfer, such as coolant systems, fuel lines, and vacuum systems. Its molded design ensures a secure fit and reduces the risk of leaks, maintaining the efficiency and reliability of these systems.

Integration with Other Systems

The hose’s durable rubber construction makes it suitable for withstanding the high temperatures and pressures common in engine environments. It is commonly employed in:

• Coolant Systems: Transporting coolant between the engine block and radiator to regulate temperature.
• Fuel Systems: Ensuring a consistent fuel supply from the tank to the engine.
• Vacuum Systems: Managing vacuum lines that control various engine functions, such as emissions systems and brake boosters.

By providing a reliable connection between these components, the 4991228 hose contributes to the overall performance and longevity of the engine system ⁴.

Conclusion

The 4991228 Molded Rubber Hose is a critical component in the fluid transport systems of commercial trucks, particularly those equipped with Cummins engines. Its robust construction, flexibility, and resistance to high temperatures and pressures make it an essential part for maintaining engine performance and longevity. Proper installation, regular maintenance, and prompt troubleshooting of common issues are key to ensuring the hose’s reliable operation and durability.