3930942
Fuel Filter
Cummins®

The Cummins 3930942 Fuel Filter is a component designed for use in commercial trucks. Its purpose is to remove impurities from the fuel before it reaches the engine, thereby contributing to the efficient and reliable operation of the vehicle. The significance of this fuel filter lies in its ability to enhance engine performance and longevity by ensuring that only clean fuel is delivered to the combustion chambers ¹.

Function and Operation of Fuel Filters

Fuel filters serve a role in the fuel system of a truck by trapping contaminants such as dirt, rust, and water that can accumulate in the fuel tank. These impurities, if not removed, can lead to engine wear, reduced efficiency, and potential damage. The operation of a fuel filter involves the passage of fuel through a filtering medium that captures particles while allowing clean fuel to flow through to the engine ².

Purpose of the Cummins 3930942 Fuel Filter

The Cummins 3930942 Fuel Filter is specifically engineered to maintain the purity of the fuel within the truck’s fuel system. It plays a role in protecting the engine by filtering out contaminants that could otherwise cause wear on critical components such as fuel injectors and pumps. By ensuring a consistent supply of clean fuel, this filter contributes to the overall efficiency and reliability of the truck’s engine ³.

Key Features

The Cummins 3930942 Fuel Filter is characterized by several design elements and materials that enhance its performance. It incorporates a high-quality filtration medium that provides effective contaminant removal. The filter is constructed from durable materials to withstand the pressures and temperatures within the fuel system. Additionally, it may feature unique characteristics such as an integrated water separator to remove moisture from the fuel, which can further protect the engine from corrosion and other water-related issues.

Benefits of Using the Cummins 3930942 Fuel Filter

Utilizing the Cummins 3930942 Fuel Filter offers several advantages. It contributes to improved engine performance by ensuring that the fuel delivered to the engine is free from contaminants. This can lead to better combustion efficiency and reduced emissions. Furthermore, the filter aids in extending the longevity of the engine by minimizing wear on fuel system components. Reliability is also enhanced, as the risk of fuel-related engine issues is reduced.

Installation Considerations

When installing the Cummins 3930942 Fuel Filter, it is important to follow guidelines and best practices to ensure proper function. This includes verifying that the filter is compatible with the truck’s fuel system and that all connections are secure. It is also recommended to relieve fuel system pressure before beginning the installation process to prevent fuel spillage and ensure safety.

Maintenance and Service Intervals

Regular maintenance of the Cummins 3930942 Fuel Filter is necessary to maintain its effectiveness. Inspection procedures should be conducted at recommended intervals to check for signs of contamination or wear. Service intervals will vary depending on the truck’s operating conditions and fuel quality, but it is generally advised to replace the filter as part of routine maintenance to prevent potential engine issues.

Troubleshooting Common Issues

Common problems associated with the Cummins 3930942 Fuel Filter may include reduced fuel flow or engine performance issues. Diagnostic procedures can help identify whether the filter is clogged or malfunctioning. If issues are detected, it is important to address them promptly to avoid further complications within the fuel system.

Compatibility and Application

The Cummins 3930942 Fuel Filter is designed for use in specific types of trucks and engines. It is important to verify compatibility with the truck’s make and model to ensure proper fit and function. This filter is typically suitable for a range of Cummins engines, but exact applications should be confirmed with the manufacturer’s specifications.

Manufacturer Information - Cummins

Cummins Inc. is a well-established manufacturer with a reputation for producing high-quality automotive components. The company has a history of innovation and commitment to quality in the production of engines and related parts. Cummins’ dedication to excellence is reflected in the design and performance of their fuel filters, including the 3930942 model.

Compatibility of Cummins Fuel Filter Part 3930942 with Various Engine Models

The Cummins fuel filter part number 3930942 is designed to be compatible with a range of engine models, ensuring efficient filtration and performance across multiple applications. Below is a detailed overview of the engine models with which this fuel filter part is compatible.

Cummins 4B3.9 Engines

The Cummins 4B3.9 engine benefits from the 3930942 fuel filter, which helps maintain optimal engine performance by ensuring clean fuel delivery. This compatibility is crucial for the longevity and efficiency of the 4B3.9 engine.

Cummins 6B5.9 Engines

Similarly, the 6B5.9 engine model is designed to work seamlessly with the Cummins fuel filter part number 3930942. This compatibility ensures that the engine receives the necessary clean fuel, enhancing its operational efficiency and reliability.

Cummins 6C8.3 Engines

The 6C8.3 engine also integrates well with the 3930942 fuel filter. This compatibility is essential for maintaining the engine’s performance and preventing potential damage caused by contaminants in the fuel.

Cummins B4.5 Engines

The B4.5 engine model is another beneficiary of the 3930942 fuel filter. This part ensures that the engine operates smoothly by filtering out impurities from the fuel, thereby protecting the engine’s internal components.

Cummins L8.9 Engines

The Cummins L8.9 engine is compatible with the 3930942 fuel filter, ensuring that the engine receives clean fuel. This compatibility is vital for maintaining the engine’s performance and preventing wear and tear.

Cummins L8.9 L121 Engines

The L8.9 L121 engine model also integrates with the 3930942 fuel filter. This compatibility ensures that the engine operates efficiently by filtering out contaminants from the fuel, thereby protecting the engine’s internal components.

Cummins L9.3 L105 Engines

The L9.3 L105 engine model is designed to work with the 3930942 fuel filter. This compatibility is crucial for maintaining the engine’s performance and ensuring that it receives clean fuel.

Cummins L9.5 L117 Engines

The L9.5 L117 engine model is another engine that benefits from the 3930942 fuel filter. This compatibility ensures that the engine operates efficiently by filtering out impurities from the fuel, thereby protecting the engine’s internal components.

Cummins QSB5.9 30 CM550 Engines

Finally, the QSB5.9 30 CM550 engine model is compatible with the 3930942 fuel filter. This compatibility ensures that the engine receives clean fuel, enhancing its operational efficiency and reliability.

Role of Part 3930942 Fuel Filter in Engine Systems

The 3930942 Fuel Filter is a component in maintaining the efficiency and performance of engine systems. When integrated with a Bosch Fuel Pump Kit, this filter ensures that the fuel delivered to the engine is free from contaminants, which could otherwise impede the fuel pump’s operation and reduce its lifespan.

In a comprehensive Filter Kit, the 3930942 Fuel Filter works in tandem with other filtration components to provide a multi-stage filtration process. This setup is designed to trap particles of varying sizes, ensuring that only clean fuel reaches the engine.

During an Engine Installation, the inclusion of the 3930942 Fuel Filter is a standard practice. It is positioned within the fuel line to intercept impurities before they can enter the engine’s combustion chamber. This placement is vital for the engine’s longevity and performance.

When considering a Kit Service Parts scenario, the 3930942 Fuel Filter is often one of the first components to be replaced during routine maintenance. Its role in preventing engine wear makes it a key part of any service kit aimed at preserving engine health.

The Location of the 3930942 Fuel Filter within the fuel system is strategically chosen to maximize its effectiveness. It is typically situated between the fuel tank and the engine, allowing it to filter the fuel as it is pumped towards the engine.

Conclusion

In summary, the 3930942 Fuel Filter is a component that enhances the functionality of fuel systems by ensuring that the fuel delivered to the engine is clean and free from debris, thereby supporting the overall efficiency and reliability of the engine.