3968202
Cap Filler
Cummins®

The Cummins 3968202 Filler Cap is a component designed for use in the fueling systems of commercial trucks. Its role is to provide a secure and efficient means for adding fuel to the vehicle’s tank. The significance of this part lies in its contribution to the overall efficiency and safety of the fueling process in heavy-duty applications.

Purpose and Function

The 3968202 Filler Cap serves a role in the fueling system by allowing fuel to be added to the tank while preventing spills and contamination. It is engineered to create a seal that maintains the integrity of the fuel system, ensuring that fuel does not leak out and that contaminants do not enter the tank. This cap facilitates a streamlined fueling process, which is important for the operational efficiency of commercial trucks.

Key Features

The design and construction of the 3968202 Filler Cap include several features that enhance its performance and durability. It is typically made from materials that are resistant to corrosion and wear, ensuring longevity in demanding environments. The sealing mechanisms are designed to provide a tight fit, which is important for maintaining the pressure within the fuel tank and preventing fuel evaporation. Additionally, the cap may include unique design elements such as anti-static properties to reduce the risk of sparks during fueling.

Benefits

The advantages of using the 3968202 Filler Cap include improved fuel system integrity, which leads to more efficient fuel usage and reduced risk of fuel-related issues. The ease of use is another benefit, as the cap is designed to be user-friendly, allowing for quick and secure fueling. Long-term cost savings are also realized due to the cap’s durability and reliability, which reduce the need for frequent replacements.

Installation and Usage

Proper installation of the 3968202 Filler Cap is important for optimal performance and safety. The installation process involves ensuring that the cap is correctly aligned with the fuel tank opening and that it is securely fastened. Usage instructions typically include guidelines on how to open and close the cap to prevent fuel spills and ensure a proper seal is maintained after fueling.

Maintenance and Troubleshooting

To ensure the longevity and performance of the 3968202 Filler Cap, regular maintenance is recommended. This may include checking for signs of wear or damage, ensuring the sealing mechanisms are intact, and cleaning the cap as necessary. Common issues such as difficulty in opening or closing the cap can often be resolved by following the manufacturer’s troubleshooting tips, which may involve lubricating the sealing surfaces or replacing worn components.

Safety Considerations

The 3968202 Filler Cap incorporates safety features in its design to minimize the risk of fuel spills and other hazards. Proper usage and maintenance of the cap are important to uphold these safety standards. Users should be aware of the potential risks associated with fueling and take necessary precautions to avoid accidents.

Environmental Impact

The use of a high-quality filler cap like the 3968202 contributes to reducing fuel spills and emissions. By maintaining the integrity of the fuel system and preventing leaks, the cap helps in minimizing the environmental impact of fuel operations. This is an important consideration for companies looking to reduce their carbon footprint and comply with environmental regulations.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions solutions. With a history of innovation and a commitment to quality, Cummins plays a significant role in the commercial truck industry. The company’s focus on developing reliable and efficient components is evident in products like the 3968202 Filler Cap, which is designed to meet the rigorous demands of heavy-duty truck applications.

Cummins Engine Filler Cap Compatibility

The Cummins part 3968202, a Filler Cap, is designed to fit a variety of Cummins engines. This part is integral for maintaining the proper sealing and pressure management of the engine’s fuel system. Here is a detailed breakdown of the engines that are compatible with this filler cap:

Cummins B Series Engines

• 6B5.9
• 6C8.3
• B6.7 CM2670 B153B

Cummins ISB Series Engines

• ISB (Chrysler)
• ISB CM2150
• ISB CM550
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB6.7 CM2250
• ISB6.7 CM2350 B101

Cummins ISBE Series Engines

• ISBE CM2150
• ISBE CM800
• ISBE4 CM850

Cummins ISC Series Engines

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

Cummins ISF Series Engines

• ISF3.8 CM2220 AN

Cummins ISL Series Engines

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

Cummins ISZ Series Engines

• ISZ13 CM2150 Z105

This filler cap is engineered to ensure a secure fit and optimal performance across these diverse engine models, providing a reliable seal to prevent fuel contamination and maintain system integrity.

Role of Part 3968202 Filler Cap in Engine Systems

The 3968202 Filler Cap is a component in the efficient operation of various engine systems. It works in conjunction with several key components to ensure the smooth functioning of the engine.

Integration with Cover-Valve and Oil Fill Arrangement

The 3968202 Filler Cap is designed to interface seamlessly with the cover-valve and oil fill arrangement. This integration allows for the secure and controlled addition of oil to the engine. The cap ensures that oil is introduced without contamination, maintaining the integrity of the lubrication system. This is particularly important for engines that require precise oil levels to function optimally.

Functionality with Valve Cover

When paired with the valve cover, the 3968202 Filler Cap plays a role in maintaining the pressure and cleanliness within the valve compartment. The valve cover protects the internal components from external contaminants, and the filler cap enhances this protection by providing a sealed point for oil addition. This sealed environment is vital for the longevity and performance of the engine.

Coordination with Valve Cover Arrangement

The valve cover arrangement often includes multiple components designed to manage airflow, pressure, and oil distribution. The 3968202 Filler Cap fits into this arrangement by providing a consistent and reliable method for oil introduction. This ensures that the oil reaches all necessary components without leakage or spillage, contributing to the overall efficiency of the engine.

Compatibility with Valve Cover Blowby Sensor Kit

In engines equipped with a valve cover blowby sensor kit, the 3968202 Filler Cap aids in monitoring and managing blowby gases. These gases can escape past the piston rings and enter the crankcase, potentially leading to contamination and pressure issues. The filler cap, when used in conjunction with the blowby sensor kit, helps maintain a balanced environment within the engine, ensuring that blowby gases are effectively managed and do not interfere with the oil system.

Overall, the 3968202 Filler Cap is a versatile component that enhances the functionality of various engine systems by ensuring secure oil addition, maintaining pressure and cleanliness, and supporting the management of blowby gases.

Conclusion

The Cummins 3968202 Filler Cap is a critical component in the fueling systems of commercial trucks, designed to enhance efficiency, safety, and environmental compliance. Its robust design, ease of use, and compatibility with a wide range of Cummins engines make it a valuable asset for maintaining the integrity of fuel systems in heavy-duty applications.