3947496
Molded Hose
Cummins®

Introduction

The Cummins 3947496 Molded Hose is a specialized component designed for use in commercial trucks. It plays a significant role in the operation of these vehicles by facilitating the transfer of fluids between various systems. Understanding its purpose and functionality is essential for maintaining the efficiency and reliability of truck operations.

Basic Concepts of Molded Hoses

Molded hoses are integral components in automotive systems, constructed through a process that involves molding synthetic rubber or other materials around a textile or wire reinforcement. This construction method provides molded hoses with flexibility, durability, and resistance to various environmental factors. They are commonly used in automotive applications to transport fluids such as coolant, fuel, and hydraulic fluid, connecting different parts of the vehicle’s systems ¹.

Purpose and Function

This Cummins part is designed to play a specific role in the operation of a truck. It connects critical systems within the vehicle, ensuring the smooth transport of fluids necessary for the truck’s operation. This hose is part of the fluid transfer network, contributing to the overall functionality and performance of the truck.

Key Features

The 3947496 incorporates several design elements and materials that enhance its performance and durability. It is constructed using high-quality synthetic materials that offer resistance to wear, tear, and environmental factors. The hose’s design includes reinforced sections to withstand pressure and maintain shape, ensuring reliable fluid transfer.

Benefits

Utilizing this Cummins part offers several advantages. Its construction and design contribute to improved reliability in fluid transfer systems. The hose’s resistance to wear and tear ensures longevity, reducing the need for frequent replacements. Additionally, its compatibility with truck systems ensures seamless integration and operation.

Installation Considerations

When installing the 3947496, it is important to follow guidelines and best practices to ensure proper fit and function. This may involve using specific tools or following certain procedures to secure the hose in place and ensure a leak-free connection. Careful attention to detail during installation can prevent issues down the line.

Troubleshooting Common Issues

Typical problems that may arise with molded hoses include leaks, cracks, and blockages. Diagnosing these issues often involves a visual inspection of the hose for signs of wear or damage. Resolving these problems may require replacing the hose or making repairs to the connection points.

Maintenance Tips

Regular maintenance practices can help ensure the longevity and efficient operation of the 3947496. This includes periodic inspections for signs of wear or damage, cleaning the hose and its connections, and replacing the hose as needed based on its condition and the manufacturer’s recommendations.

Cummins Overview

Cummins Inc. is a well-established company in the commercial truck industry, known for its wide range of products and strong reputation for quality and reliability. With a history of innovation and commitment to customer satisfaction, Cummins continues to be a leader in providing solutions for the transportation sector.

Compatibility of Cummins Molded Hose Part 3947496

The Cummins molded hose part 3947496 is designed to integrate seamlessly with a range of Cummins engines, ensuring optimal performance and reliability. This hose is specifically engineered to fit into the intricate systems of various Cummins engine models.

G8.3 and GTA8.3 CM558 Engines

The molded hose part 3947496 is compatible with the G8.3 and GTA8.3 CM558 engines. These engines are known for their robust design and efficiency, and the hose ensures that the fluid pathways within these engines remain uncompromised. The hose’s material and construction are tailored to withstand the operational stresses and temperatures associated with these engines.

ISB CM550 Engine

For the ISB CM550 engine, the molded hose part 3947496 is engineered to fit perfectly within the engine’s fluid management systems. This engine is recognized for its versatility and power, and the hose ensures that the fluid transfer processes are smooth and reliable. The hose’s design accommodates the specific routing and connection points required by the ISB CM550 engine.

QSL9 G CM558 Engine

The QSL9 G CM558 engine also benefits from the molded hose part 3947496. This engine is designed for high-performance applications, and the hose ensures that the fluid systems operate efficiently. The hose’s flexibility and durability make it an ideal fit for the demanding conditions encountered by the QSL9 G CM558 engine.

By ensuring a precise fit and reliable performance, the Cummins molded hose part 3947496 enhances the operational integrity of these engines, contributing to their overall efficiency and longevity.

Role of Part 3947496 Molded Hose in Engine Systems

In the intricate network of an engine system, the molded hose component, specifically part 3947496, serves as a vital conduit facilitating the smooth operation of various subsystems. This hose is integral in the arrangement of components, ensuring that fluids and gases are directed where needed without leakage or contamination.

Oil Fill and Breather Systems

The molded hose is a key player in the oil fill and breather systems. It connects the oil fill port to the crankcase, allowing for efficient oil addition during maintenance. In the breather system, the hose links the crankcase to the atmosphere or a filtration system, enabling the release of gases produced during combustion. This prevents pressure build-up within the crankcase, which could lead to oil leaks or engine damage ².

Crankcase Ventilation

In crankcase ventilation, the molded hose is employed to route gases from the crankcase to the intake manifold or a dedicated ventilation system. This process not only aids in maintaining optimal crankcase pressure but also helps in reducing emissions by ensuring that these gases are burned in the combustion chamber rather than being released into the atmosphere.

Front Retro-Breather Kit

Within the front retro-breather kit, the molded hose is used to retrofit older engines with modern breather systems. This upgrade enhances the engine’s performance by improving ventilation and reducing the risk of oil contamination from crankcase gases.

Tappet Retro-Breather Kit

Similarly, in the tappet retro-breather kit, the molded hose plays a role in upgrading the breather system for tappets (also known as lifters). This modification ensures that the tappets receive clean oil and are not affected by gases that could lead to premature wear or failure.

Conclusion

In summary, part 3947496 molded hose is a fundamental component in various engine systems, contributing to the efficient operation and longevity of the engine by ensuring proper fluid and gas management. Its compatibility with a range of Cummins engines and its role in critical systems underscore its importance in maintaining the performance and reliability of commercial trucks.