4895461
Filler Cap Gasket
Cummins®

The 4895461 Filler Cap Gasket, manufactured by Cummins, is a component designed for use in commercial truck fuel systems. Cummins, a well-established name in the commercial truck industry, produces a range of parts and systems aimed at enhancing the performance, reliability, and safety of trucks. This Cummins part is significant in the context of commercial truck maintenance and operation, as it plays a role in ensuring the integrity of the fuel system ¹.

Purpose and Function

The 4895461 Filler Cap Gasket serves to seal the filler cap of a truck’s fuel system, preventing leaks and contamination. Its function is vital for maintaining the purity and pressure of the fuel within the system, which is necessary for optimal engine performance. By creating a secure seal, the gasket helps to prevent fuel from escaping and external contaminants from entering the fuel system ².

Key Features

The 4895461 Filler Cap Gasket is engineered with specific design and material characteristics to ensure durability and effectiveness. It is made from materials that resist degradation from fuel and environmental conditions, ensuring long-term reliability. The gasket is designed to be compatible with Cummins fuel systems, providing a precise fit and seal. Its construction allows it to withstand the pressures and temperatures encountered in truck fuel systems ³.

Benefits

Using the 4895461 Filler Cap Gasket offers several advantages. It contributes to the integrity of the fuel system by providing a reliable seal, which reduces the risk of fuel leaks. This not only helps in maintaining the efficiency of the truck but also enhances safety by minimizing the chances of fuel-related hazards. Additionally, the gasket’s design and material properties contribute to the overall performance and longevity of the truck’s fuel system.

Installation and Replacement

Proper installation and replacement of the 4895461 Filler Cap Gasket are important for ensuring a secure and effective seal. The recommended procedure involves cleaning the filler cap and the surrounding area to remove any debris or old gasket material. The new gasket should be positioned correctly before the filler cap is reattached. Using the appropriate tools and following the manufacturer’s guidelines can help ensure a proper installation.

Troubleshooting Common Issues

Common problems with filler cap gaskets include leaks or difficulty in sealing. These issues can often be traced back to improper installation, wear and tear, or contamination. Troubleshooting steps may involve inspecting the gasket for damage, ensuring the filler cap is correctly aligned, and cleaning the area to remove any contaminants that could interfere with the seal.

Maintenance Tips

To prolong the lifespan and ensure optimal performance of the 4895461 Filler Cap Gasket, regular maintenance is recommended. This includes inspecting the gasket for signs of wear or damage, cleaning it to remove any buildup, and replacing it according to the manufacturer’s guidelines or based on the truck’s usage and environmental conditions. Regular maintenance helps in identifying potential issues before they lead to more significant problems.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emission solutions. With a history of innovation and quality, Cummins has established a strong reputation in the commercial truck industry. The company’s product lineup, which includes the 4895461 Filler Cap Gasket, is designed to meet the demanding requirements of commercial truck applications, ensuring reliability, performance, and safety.

Cummins Engine Compatibility with Part 4895461

The Cummins part 4895461, a Filler Cap Gasket, is designed to fit a variety of Cummins engines. This gasket is essential for sealing the filler cap, ensuring that the engine’s fuel or coolant system remains airtight and free from contaminants. Below is a detailed description of the engines that are compatible with this part.

ISB Series Engines

• ISB CM2150
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB5.9 CM2880 B110
• ISB6.7 CM2250

These engines, part of the ISB series, are commonly used in various applications, from heavy-duty trucks to industrial machinery. The part 4895461 fits seamlessly with these engines, providing a reliable seal for the filler cap.

ISBE Series Engines

• ISBE CM2150
• ISBE CM800
• ISBE4 CM850

The ISBE series engines, known for their efficiency and durability, also require the part 4895461 for proper sealing. This gasket ensures that the filler cap remains secure, preventing any leaks that could compromise engine performance.

QSB Series Engines

• QSB4.5 CM2250 EC
• QSB4.5 CM850 (CM2850)
• QSB5.9 CM2880 B115
• QSB6.7 CM2250
• QSB6.7 CM850 (CM2850)
• QSB7 CM2880 B117

The QSB series engines, often used in agricultural and construction equipment, are compatible with the part 4895461. This gasket is crucial for maintaining the integrity of the filler cap seal, ensuring optimal engine operation.

Other Cummins Engines

• B4.5 RGT
• B6.7 CM2670 B153B
• ISD4.5 CM2220 D108
• ISF3.8 CM2220 AN

These engines, while less common, also require the part 4895461 for their filler cap sealing needs. This gasket is designed to fit these specific engines, ensuring a proper seal and preventing any potential leaks.

Role of Part 4895461 Filler Cap Gasket in Engine Systems

The part 4895461 Filler Cap Gasket is an essential component in maintaining the integrity and functionality of various engine systems. When integrated with the filler cap, this gasket ensures a secure seal, preventing fuel leaks and maintaining the correct pressure within the fuel tank. This is particularly important in preventing fuel evaporation and contamination, which can affect engine performance and efficiency.

In the context of a long block assembly, the Filler Cap Gasket works in conjunction with other sealing components to ensure that the engine’s upper and lower sections are properly sealed. This is vital for maintaining the engine’s overall pressure balance and preventing any unwanted air or fuel leaks that could compromise performance.

When included in an overhaul kit, the Filler Cap Gasket plays a role in restoring the engine’s sealing surfaces to their original specifications. This is important for ensuring that all components, from the fuel system to the crankcase, operate within their designed parameters.

In an upper engine gasket kit or upper engine gasket set, the Filler Cap Gasket is one of many gaskets that work together to seal various upper engine components. These kits typically include gaskets for the valve covers, intake manifold, and other critical upper engine areas. The Filler Cap Gasket, in this scenario, ensures that the fuel filler system remains isolated from the engine’s upper components, maintaining system integrity.

Specifically, in relation to the valve cover and valve cover arrangement, the Filler Cap Gasket indirectly supports the sealing effectiveness of these components. By ensuring that the fuel system is properly sealed, it allows the valve cover gaskets to focus solely on sealing the valve train and related components, thus optimizing engine performance and reliability.

Overall, the integration of the Filler Cap Gasket with these engine components underscores its importance in maintaining a sealed and efficient engine system.

Conclusion

The 4895461 Filler Cap Gasket is a critical component in the maintenance and operation of commercial truck fuel systems. Its role in preventing leaks, maintaining fuel purity, and ensuring engine efficiency cannot be overstated. Proper installation, regular maintenance, and understanding its compatibility with various Cummins engines are essential for maximizing the benefits of this part. By ensuring the integrity of the fuel system, the Filler Cap Gasket contributes to the overall performance, reliability, and safety of commercial trucks.