4003924
Rocker Lever
Cummins®

The Cummins 4003924 Rocker Lever is a component designed for use in commercial truck engines. It serves a specific function within the engine’s valve train, contributing to the overall performance and efficiency of the truck. Understanding its purpose and significance is important for maintaining and optimizing the operation of commercial trucks.

Basic Concepts of Rocker Levers

A rocker lever, also known as a rocker arm, is a pivotal component in an engine’s valve train. It functions by transferring motion from the camshaft to the valves, allowing them to open and close at precise intervals. This mechanism is crucial for the intake and exhaust processes, which are fundamental to the engine’s operation. Rocker levers are commonly used in both overhead valve (OHV) and overhead cam (OHC) engine designs, playing a vital role in ensuring the engine operates smoothly and efficiently ¹.

Purpose and Role of the 4003924 Rocker Lever

The Cummins 4003924 Rocker Lever is specifically engineered to enhance the performance of truck engines. It interacts with the camshaft and pushrods to actuate the valves, ensuring they open and close with the correct timing and force. This precise control over valve operation contributes to efficient combustion, which in turn affects the engine’s power output and fuel efficiency. The rocker lever’s design allows it to withstand the high stresses and temperatures encountered in commercial truck engines, ensuring reliable operation under demanding conditions ².

Key Features

The Cummins 4003924 Rocker Lever boasts several key features that enhance its performance and durability. It is constructed from high-quality materials, ensuring it can withstand the rigors of commercial truck operation. The design includes precise machining for optimal fit and function, as well as features that reduce friction and wear. Additionally, the rocker lever may incorporate unique characteristics such as improved geometry for better leverage and reduced deflection, contributing to more efficient valve actuation ³.

Benefits of Using the 4003924 Rocker Lever

Utilizing the Cummins 4003924 Rocker Lever offers several advantages. It contributes to improved engine efficiency by ensuring precise valve timing and actuation. The durable construction and design elements enhance the rocker lever’s reliability and longevity, reducing the need for frequent replacements. Furthermore, the efficient operation of the rocker lever can lead to better overall engine performance, including increased power output and improved fuel efficiency.

Installation and Integration

Proper installation and integration of the Cummins 4003924 Rocker Lever are important for ensuring optimal engine performance. It should be installed according to the manufacturer’s guidelines to ensure correct fitment and function. Attention to detail during installation, such as proper torque settings and alignment, is important to prevent issues such as valve train noise or inefficient operation. Integration with other engine components, such as the camshaft and pushrods, must be precise to maintain the engine’s performance standards.

Troubleshooting Common Issues

Common problems associated with rocker levers can include noise, inefficient valve operation, or wear. These issues may arise from improper installation, wear and tear, or compatibility issues with other engine components. Troubleshooting steps may involve inspecting the rocker lever and related components for signs of wear or damage, ensuring proper installation, and addressing any issues with lubrication or alignment. Regular maintenance and inspection can help identify and resolve issues before they lead to more significant problems.

Maintenance Tips

Maintaining the Cummins 4003924 Rocker Lever is important for ensuring its longevity and optimal performance. Regular inspection routines should be established to check for signs of wear, damage, or misalignment. Proper lubrication is also important to reduce friction and wear on the rocker lever and its pivot points. Additionally, ensuring that the rocker lever is correctly torqued and aligned during installation and maintenance can help prevent issues and ensure efficient operation.

Performance Enhancements

The Cummins 4003924 Rocker Lever contributes to overall engine performance by ensuring precise and efficient valve actuation. This can lead to improvements in power output and fuel efficiency, as the engine is able to operate more smoothly and effectively. The durable construction and design features of the rocker lever also contribute to its reliability under demanding conditions, further enhancing the engine’s performance.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and related technologies. With a strong reputation in the commercial truck industry, Cummins is known for its high-quality products and innovative solutions. The company’s commitment to excellence and customer satisfaction has established it as a trusted name in the industry, providing reliable and efficient power solutions for a variety of applications.

Rocker Lever 4003924 Compatibility with Cummins Engines

The Rocker Lever part number 4003924, manufactured by Cummins, is a critical component in the valve train system of certain engines. This part is designed to interface with the camshaft and pushrods to actuate the valves, ensuring proper engine operation. Below is a detailed description of its compatibility with specific Cummins engines.

L10 GAS

In the L10 GAS engine, the Rocker Lever 4003924 plays a pivotal role in the valve train mechanism. It is engineered to work seamlessly with the camshaft and pushrods, facilitating the opening and closing of the engine’s valves. This ensures that the engine operates efficiently and reliably, maintaining optimal performance.

L10 MECHANICAL

Similarly, in the L10 MECHANICAL engine, the Rocker Lever 4003924 is integral to the valve train system. Its design allows it to interact precisely with the camshaft and pushrods, ensuring that the engine’s valves are actuated correctly. This compatibility is crucial for the engine’s overall performance and longevity.

Grouping of Engines

The Rocker Lever 4003924 is compatible with both the L10 GAS and L10 MECHANICAL engines. These engines share a similar valve train architecture, which allows the same rocker lever to be used across both models. This commonality simplifies maintenance and repair processes, as technicians can use the same part for multiple engine types.

By ensuring that the Rocker Lever 4003924 fits these engines correctly, Cummins maintains high standards of quality and reliability in their engine components. This compatibility is essential for the smooth operation of the engines and the satisfaction of their users.

Role of Part 4003924 Rocker Lever in Engine Systems

The part 4003924 Rocker Lever is an integral component in the operation of various engine systems. It primarily interacts with the camshaft and the valve train, facilitating the opening and closing of the engine’s valves.

When the camshaft rotates, it pushes against the rocker lever, which then amplifies the motion to open the valve. This mechanism ensures that the valves open with sufficient force and precision, allowing for optimal air and fuel intake and exhaust gas expulsion.

The rocker lever also plays a significant role in distributing the camshaft’s motion to multiple valves. This is particularly important in multi-valve engine configurations where precise timing and force application are essential for performance and efficiency.

Additionally, the rocker lever helps in reducing the wear on the camshaft and valve components. By acting as an intermediary, it absorbs some of the stress and motion, thereby prolonging the lifespan of these critical engine parts.

In summary, the part 4003924 Rocker Lever is a key element in ensuring the smooth and efficient operation of the valve train, directly influencing the engine’s overall performance and durability.

Conclusion

The Cummins 4003924 Rocker Lever is a critical component in the valve train system of commercial truck engines. Its precise design and durable construction ensure efficient valve actuation, contributing to improved engine performance and fuel efficiency. Proper installation, maintenance, and troubleshooting are essential for maximizing the benefits of this Cummins part. Understanding its role and features can help technicians and engineers optimize engine operation and reliability.