3558690
Valve Disc Retainer
Cummins®

The Valve Disc Retainer, identified by part number 3558690, is a component manufactured by Cummins, a well-established name in the automotive and heavy-duty truck industry. This part plays a role in the operation of heavy-duty truck engines, contributing to their efficiency and reliability. Understanding its function and importance can provide valuable insights into engine maintenance and performance optimization.

Function and Operation

The Valve Disc Retainer operates within the engine’s valve train system. Its primary role is to secure the valve disc in place, ensuring it remains properly aligned and functions as intended. The retainer interacts with other components such as the valve spring and valve stem, contributing to the overall stability and performance of the valve assembly. By maintaining the correct positioning of the valve disc, the retainer helps in achieving precise valve timing, which is important for engine efficiency and performance.

Key Features

The Valve Disc Retainer is designed with specific characteristics that enhance its performance and durability. It is typically made from high-strength materials to withstand the rigorous conditions within the engine. The design often includes features such as precise machining and robust construction to ensure it can endure high temperatures and pressures. These attributes contribute to the retainer’s reliability and longevity, making it a vital component in the engine’s valve train system.

Benefits

Incorporating the Valve Disc Retainer into the engine design offers several advantages. One of the primary benefits is improved engine reliability, as the retainer helps maintain the integrity of the valve train system. This can lead to enhanced fuel efficiency, as the engine operates more smoothly and with greater precision. Additionally, the use of a high-quality retainer can reduce maintenance requirements, as it is less likely to fail or require replacement compared to lower-quality alternatives.

Installation and Maintenance

Proper installation of the Valve Disc Retainer is crucial for ensuring optimal performance. It should be installed according to the manufacturer’s specifications, with attention to detail to avoid any misalignment or damage. Regular maintenance practices, such as periodic inspections and replacements as needed, can help ensure the retainer continues to function effectively. Following these guidelines can contribute to the overall longevity and reliability of the engine.

Troubleshooting Common Issues

Typical problems associated with the Valve Disc Retainer may include wear, deformation, or failure due to extreme conditions. Diagnostic procedures should involve a thorough inspection of the retainer and related components to identify any signs of damage or misalignment. Potential solutions may include replacement of the retainer or addressing any underlying issues that could be contributing to its failure. Timely intervention can help prevent more significant engine problems and ensure continued performance.

Cummins: A Brief Overview

Cummins Inc. is a globally recognized leader in the design, manufacture, and distribution of engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a strong reputation for quality and innovation in the automotive and heavy-duty truck industry. The company’s product range includes a variety of engine components and systems, all designed to meet the demanding requirements of modern transportation and industrial applications. Cummins’ commitment to excellence and customer satisfaction has made it a trusted name among professionals in the field.

Valve Disc Retainer 3558690 Compatibility with Cummins Engines

The Valve Disc Retainer part number 3558690, manufactured by Cummins, is a component in various Cummins engine models. This part is designed to ensure the proper functioning of the valve mechanism by retaining the valve discs securely in place. Below is a detailed description of its compatibility across different Cummins engine series.

Cummins B and QSB Series

The Valve Disc Retainer 3558690 fits seamlessly with the following Cummins B and QSB series engines:

• 4B3.9
• 6B5.9
• B5.9 G
• QSB5.9 44 CM550

These engines, known for their robust performance and reliability, benefit from the precise fit and function of the 3558690 Valve Disc Retainer, ensuring optimal valve operation.

Cummins C and QSC Series

The part is also compatible with the following C and QSC series engines:

• C GAS PLUS CM556
• C8.3 G
• QSC8.3 CM554

These engines, which are designed for both gas and diesel applications, rely on the 3558690 Valve Disc Retainer to maintain the integrity of the valve system, contributing to the engine’s overall efficiency and longevity.

Cummins ISB, ISC, ISL, ISM, and ISX Series

The Valve Disc Retainer 3558690 is also suitable for the following Cummins ISB, ISC, ISL, ISM, and ISX series engines:

• ISB CM550
• ISC CM554
• ISL CM554
• ISM CM570
• ISX CM570

These engines, which are widely used in various applications from heavy-duty trucks to industrial power, are designed to handle high loads and performance demands. The 3558690 Valve Disc Retainer ensures that the valve discs remain securely in place, preventing any potential valve-related issues.

Cummins K Series

The part is also compatible with the following Cummins K series engines:

• K38
• K50

These engines, known for their versatility and power, benefit from the precise fit and function of the 3558690 Valve Disc Retainer, ensuring reliable valve operation.

Cummins L10 Series

The Valve Disc Retainer 3558690 fits the following Cummins L10 series engines:

• L10 CELECT
• L10 GAS

These engines, which are designed for both diesel and gas applications, rely on the 3558690 Valve Disc Retainer to maintain the integrity of the valve system.

Cummins M11 Series

The part is also compatible with the following Cummins M11 series engines:

• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL

These engines, which are known for their durability and performance, benefit from the precise fit and function of the 3558690 Valve Disc Retainer, ensuring optimal valve operation.

Cummins N14 Series

The Valve Disc Retainer 3558690 fits the following Cummins N14 series engines:

• N14 CELECT PLUS
• N14 MECHANICAL

These engines, which are designed for heavy-duty applications, rely on the 3558690 Valve Disc Retainer to maintain the integrity of the valve system.

Cummins NH/NT 855

The part is also compatible with the following Cummins NH/NT 855 engine:

• NH/NT 855

This engine, which is known for its power and reliability, benefits from the precise fit and function of the 3558690 Valve Disc Retainer, ensuring reliable valve operation.

Cummins QSK Series

The Valve Disc Retainer 3558690 fits the following Cummins QSK series engines:

• QSK45 CM500
• QSK60 CM500

These engines, which are designed for high-performance applications, rely on the 3558690 Valve Disc Retainer to maintain the integrity of the valve system.

Role of Part 3558690 Valve Disc Retainer in Engine Systems

The Valve Disc Retainer, identified by part number 3558690, is a component in various engine systems, particularly those involving air compressors and valve assemblies. Its primary function is to secure the valve disc in place, ensuring optimal performance and longevity of the valve system.

Integration with Air Compressor Systems

In air compressor systems, the Valve Disc Retainer is integral to the operation of the compressor valve body assembly. It works in conjunction with the valve disc to regulate the flow of compressed air, maintaining the efficiency and reliability of the compressor. This is particularly important in high-demand applications where consistent air pressure is required.

Role in Assembly and Head Assemblies

The Valve Disc Retainer is also a key component in various head assemblies, such as the QE Head Assembly and HD Head Assemblies. In these configurations, it ensures that the valve disc remains securely in place, allowing for precise control over the airflow within the engine. This is vital for maintaining the engine’s performance and preventing potential damage from valve disc displacement.

Application in Valve Repair and Conversion Kits

In valve repair kits and compressor conversion kits, the Valve Disc Retainer plays a significant role in restoring or upgrading the valve system. It is often included in these kits to replace worn-out retainers, ensuring that the newly installed valve discs are held firmly in place. This is essential for the successful repair or conversion of the valve system, contributing to the overall efficiency and durability of the engine.

Function in QE and HD Valve Body Assemblies

Within QE and HD valve body assemblies, the Valve Disc Retainer is responsible for maintaining the integrity of the valve disc. It ensures that the disc operates within the designed parameters, which is crucial for the proper functioning of the valve body. This, in turn, contributes to the overall performance and reliability of the engine system.

Importance in QE Unloader Serv and QE/HD Head Serv Assemblies

In QE Unloader Serv and QE/HD Head Serv assemblies, the Valve Disc Retainer is used to secure the valve disc, facilitating the smooth operation of these components. Its role is particularly significant in high-demand applications, where the precise control of airflow is essential for the efficient operation of the engine.

Use in Compressor Valve Body Assembly and Air Valve Repair Kit

The Valve Disc Retainer is also a vital component in the Compressor Valve Body Assembly and Air Valve Repair Kit. In these applications, it ensures that the valve disc is held securely, allowing for the efficient regulation of airflow. This is essential for maintaining the performance and longevity of the compressor and valve systems.

Conclusion

In summary, the Valve Disc Retainer (part 3558690) is a fundamental component in various engine systems, particularly those involving air compressors and valve assemblies. Its role in securing the valve disc is essential for the efficient and reliable operation of these systems. Proper installation, maintenance, and understanding of its function and compatibility with Cummins engines are crucial for ensuring optimal engine performance and longevity.