4948928
Exhaust Valve
Cummins®

The Cummins 4948928 Exhaust Valve is a component designed for use in commercial truck engines. It plays a role in the engine system by facilitating the exhaust process, which is vital for the efficient operation of the engine. This valve is specifically engineered to meet the demanding requirements of commercial truck applications, ensuring reliable performance under various operating conditions ¹.

Basic Concepts of Exhaust Valves

An exhaust valve is a component within an internal combustion engine that allows the release of exhaust gases from the combustion chamber into the exhaust system. It operates in conjunction with the intake valve, which admits air and fuel into the combustion chamber. The exhaust valve opens and closes in synchronization with the engine’s camshaft, allowing for the precise timing of the exhaust process. This timing is crucial for maintaining engine efficiency and performance ².

Purpose of the 4948928 Exhaust Valve

This Cummins part is designed to play a role in the operation of a truck engine by managing the release of exhaust gases. This valve contributes to the overall engine performance by ensuring that exhaust gases are expelled efficiently, which helps in maintaining optimal engine temperature and pressure. Its function is integral to the engine’s ability to convert fuel into mechanical energy effectively ³.

Key Features

The Cummins 4948928 Exhaust Valve is characterized by its specific design and construction features. It is manufactured using high-quality materials that are resistant to the high temperatures and pressures encountered in the engine environment. The valve’s design includes precise machining and heat treatment processes to enhance its durability and performance. Additionally, it may feature unique attributes such as a robust stem and seat design to ensure a tight seal and efficient operation.

Benefits

The advantages provided by the 4948928 Exhaust Valve include improved engine efficiency, longevity, and reliability. Its design and construction contribute to enhanced performance and durability, which are particularly beneficial for commercial truck applications. The valve’s ability to withstand the rigors of heavy-duty use ensures that it can maintain optimal performance over extended periods, reducing the need for frequent replacements.

Installation Process

The proper installation of the 4948928 Exhaust Valve involves several steps to ensure optimal performance and longevity. It is important to use the necessary tools and follow best practices, such as ensuring the valve seat is clean and free of debris before installation. Additionally, precautions should be taken to avoid damaging the valve or other engine components during the installation process.

Troubleshooting Common Issues

Common problems associated with exhaust valves include leaks, sticking, or failure. These issues can often be identified through diagnostic steps such as visual inspection, pressure testing, or analyzing engine performance data. Solutions may involve cleaning, adjusting, or replacing the valve, depending on the specific issue encountered.

Maintenance Tips

Regular maintenance practices can help prolong the life of the 4948928 Exhaust Valve. This includes inspection intervals to check for wear or damage, cleaning procedures to remove deposits that may affect performance, and knowing when to consider replacement based on the valve’s condition and the engine’s operating hours.

Performance Enhancements

Proper maintenance and timely replacement of the 4948928 Exhaust Valve can contribute to overall engine performance and fuel efficiency in commercial trucks. By ensuring that the valve operates efficiently, it helps maintain optimal engine conditions, which can lead to improved fuel economy and reduced emissions.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions control technologies. With a history of innovation and a commitment to quality, Cummins has established a strong reputation in the commercial truck industry. The company’s product range is designed to meet the diverse needs of its customers, providing reliable and efficient power solutions for various applications.

Exhaust Valve 4948928 Compatibility with Cummins Engines

The Exhaust Valve part number 4948928, manufactured by Cummins, is designed to fit into several of their engine models. This part is crucial for the proper functioning of the engine’s exhaust system, ensuring efficient gas flow and maintaining engine performance.

G855 and G855 CM558

The Exhaust Valve 4948928 is compatible with the G855 and G855 CM558 engines. These engines are known for their robust design and reliability, often used in heavy-duty applications. The valve fits seamlessly into these engines, providing the necessary durability and performance required for such demanding environments.

GTA855 CM558 (CM2358) G101

This exhaust valve is also suitable for the GTA855 CM558 (CM2358) G101 engine. This engine variant is part of the advanced GTA series, which combines high power output with fuel efficiency. The 4948928 part ensures that the exhaust system operates smoothly, contributing to the engine’s overall efficiency and longevity.

N14 G

Lastly, the Exhaust Valve 4948928 is compatible with the N14 G engine. This engine is a staple in the heavy-duty market, known for its durability and performance. The valve fits into the N14 G engine, ensuring that the exhaust system functions optimally, which is crucial for maintaining the engine’s efficiency and reliability.

Role of Part 4948928 Exhaust Valve in Engine Systems

The part 4948928 Exhaust Valve is an integral component within the engine’s valve train system, working in concert with several other parts to ensure optimal engine performance.

When the camshaft rotates, it actuates the valve mechanism, causing the Exhaust Valve to open and close at precise intervals. This action is synchronized with the piston’s movement within the cylinder. As the piston reaches the end of its combustion cycle, the Exhaust Valve opens, allowing the spent gases to exit the cylinder. This process is essential for maintaining the engine’s efficiency and performance.

The Exhaust Valve is mounted on the cylinder head, which is a critical component that houses the combustion chamber. The head is designed to withstand high pressures and temperatures, ensuring that the valve operates effectively under various engine conditions.

In terms of engine parts, the Exhaust Valve interacts directly with the valve seat and valve guide, which are part of the cylinder head assembly. These components ensure that the valve opens and closes smoothly, without any undue wear or leakage.

Overall, the Exhaust Valve plays a significant role in the engine’s operation, contributing to its overall performance and longevity.

Conclusion

The Cummins 4948928 Exhaust Valve is a critical component in the operation of commercial truck engines, designed to ensure efficient exhaust gas flow and maintain engine performance. Its robust design, compatibility with various Cummins engine models, and the role it plays in the engine’s valve train system highlight its importance in achieving optimal engine efficiency and longevity.