3914136
Filler Cap
Cummins®

Introduction

The Cummins 3914136 Filler Cap is a component designed for use in the fueling systems of commercial trucks. Its purpose is to provide a secure and efficient means for transferring fuel into the vehicle’s tank. The significance of this part lies in its role in maintaining the integrity of the fuel system, ensuring that fuel is stored safely and efficiently, which is vital for the operation and performance of commercial trucks ¹.

Purpose and Function

The 3914136 Filler Cap plays a role in the fueling system by facilitating the secure and efficient transfer of fuel into the truck’s tank. It is designed to create a seal that prevents fuel spillage and contamination during the refueling process. Additionally, it helps maintain the pressure within the fuel tank, which is important for the proper functioning of the fuel system ².

Key Features

The design and construction of the 3914136 Filler Cap include several features that enhance its performance and durability. It is typically made from materials that are resistant to wear and environmental factors, ensuring longevity. The cap incorporates sealing mechanisms that provide a tight seal, preventing fuel leaks and maintaining tank pressure. Unique design elements may include anti-static properties to reduce the risk of sparks during refueling ³.

Benefits

The 3914136 Filler Cap offers several advantages. It contributes to improved fuel security by preventing unauthorized access to the fuel tank. Its design allows for ease of use during refueling, reducing the likelihood of spills. The cap’s resistance to wear and environmental factors ensures durability, while its role in maintaining tank pressure contributes to the overall efficiency of the fuel system.

Installation and Compatibility

Proper installation of the 3914136 Filler Cap is important for its effective function. It is designed to be compatible with various truck models and fuel types, ensuring versatility in its application. Installation guidelines should be followed to ensure a secure fit and proper sealing.

Maintenance and Troubleshooting

Regular maintenance practices are recommended to ensure the longevity and effectiveness of the 3914136 Filler Cap. This may include periodic inspection for wear or damage and cleaning to remove any debris that could affect its sealing capabilities. Common issues may include leaks or difficulty in opening the cap, which could be caused by debris or a faulty seal. Troubleshooting steps may involve cleaning the cap or replacing it if necessary.

Safety Considerations

When handling and maintaining the 3914136 Filler Cap, it is important to follow safety practices. This includes proper handling of fuel to avoid spills and contamination, avoiding static discharge during refueling, and ensuring a secure seal to prevent fuel leaks. These precautions help maintain a safe working environment and protect the integrity of the fuel system.

Environmental Impact

The design and function of the 3914136 Filler Cap contribute to reducing fuel spillage and environmental contamination. By providing a secure seal and maintaining tank pressure, it helps prevent fuel leaks. Proper maintenance of the cap is important in minimizing environmental risks associated with fuel spills.

Cummins Overview

Cummins Inc. is a company with a history of providing quality and innovative solutions in the commercial truck industry. Its commitment to quality is evident in the design and manufacturing of components like the 3914136 Filler Cap, which are engineered to meet the demanding requirements of commercial truck operations.

Cummins Engine Filler Cap Compatibility

The Cummins part number 3914136, which is a filler cap, is designed to fit a variety of Cummins engines. This filler cap is a crucial component that ensures the proper sealing of the engine’s fuel or coolant system, preventing leaks and maintaining system integrity. Below is a detailed breakdown of the engines that are compatible with this filler cap:

ISB Series Engines

• ISB CM2150
• ISB CM550
• ISB CM850
• ISB/ISD6.7 CM2150 SN
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118

ISBE Series Engines

• ISBE CM2150
• ISBE4 CM850

ISC Series Engines

• ISC CM2150
• ISC CM554
• ISC CM850
• ISC8.3 CM2250

ISL Series Engines

• ISL CM2150
• ISL CM554
• ISL G CM2180
• ISL9 CM2150 SN
• ISL9 CM2250
• ISL9.5 CM2880 L138

ISX Series Engines

• ISX CM570

This filler cap is a critical component for maintaining the operational efficiency and longevity of these engines. It is essential to use the correct filler cap to ensure compatibility and proper sealing, preventing potential leaks and system failures.

Role of Part 3914136 Filler Cap in Engine Systems

The part 3914136 filler cap is an essential component in the arrangement of various engine systems, ensuring the smooth operation and maintenance of the engine.

Oil Fill System

In the oil fill system, the filler cap plays a significant role by providing a secure and sealed point for adding lubricant to the engine. This ensures that the oil level is maintained at the optimal level, which is necessary for the proper lubrication of moving parts within the cylinder block and other components. The cap prevents contaminants from entering the oil, thus maintaining the cleanliness and effectiveness of the lubricant.

Cover and Cylinder Block

The filler cap is often mounted on a cover that sits atop the cylinder block. This cover not only protects the internal components but also houses the filler cap, which is used to add oil to the system. The cap’s seal is vital in maintaining the pressure within the system, which is important for the efficient operation of the engine.

Valve System

In engines with overhead valve systems, the filler cap may also be part of the arrangement that allows access to the valve cover. This is important for maintenance tasks such as checking valve clearances or adding oil to the system. The filler cap ensures that these operations can be performed without compromising the integrity of the engine’s seals and pressures.

Overall, the part 3914136 filler cap is a key component in the maintenance and operation of engine systems, facilitating the addition of oil while protecting the internal components from contaminants and pressure loss.

Conclusion

The Cummins 3914136 Filler Cap is a vital component in the fueling systems of commercial trucks, ensuring secure and efficient fuel transfer, maintaining tank pressure, and preventing fuel spillage and contamination. Its compatibility with various Cummins engines and its role in engine systems highlight its importance in the operation and maintenance of commercial trucks. Regular maintenance and proper installation are essential to ensure the longevity and effectiveness of this part.