3905870
Rocker Lever Support
Cummins®

The 3905870 Rocker Lever Support, manufactured by Cummins, is a critical component in the engine system of heavy-duty trucks. This part is essential for the efficient operation of the valve train, ensuring the proper transfer of motion from the camshaft to the valves. Cummins, a leader in engine manufacturing, designs this component with durability and performance in mind, meeting the demanding requirements of commercial trucking.

Basic Concepts of Rocker Lever Support

Rocker Lever Supports are fundamental to the operation of an engine’s valve train. They facilitate the transfer of motion from the camshaft to the valves, enabling the opening and closing of the valves in synchronization with the engine’s operation. This transfer of motion is achieved through interaction with other components such as camshafts, pushrods, and valves. The Rocker Lever Support acts as a pivot point, allowing the rocker arm to amplify the camshaft’s motion and apply it to the valve ¹.

Purpose of the 3905870 Rocker Lever Support

The 3905870 Rocker Lever Support ensures the proper transfer of motion from the camshaft to the valves, facilitating efficient valve operation. This component provides a stable mounting point for the rocker arm, contributing to the engine’s overall efficiency and reliability ².

Key Features

The 3905870 Rocker Lever Support is characterized by its robust design and the use of high-quality materials, which enhance its performance and durability. Its design includes precise engineering to ensure compatibility with Cummins engines, and it is constructed from materials that can withstand the high stresses and temperatures encountered in heavy-duty applications. Unique attributes of this component may include enhanced wear resistance and improved stability under load, contributing to its longevity and reliable operation ³.

Benefits

Utilizing the 3905870 Rocker Lever Support in a truck engine can lead to several benefits. These include improved engine efficiency due to the precise operation of the valve train, enhanced durability under the demanding conditions of heavy-duty use, and reliable performance. The component’s design and materials contribute to these advantages, making it a valuable part of the engine system.

Installation and Compatibility

Proper installation of the 3905870 Rocker Lever Support is crucial for ensuring its optimal performance. Installation guidelines may include prerequisites such as ensuring the engine is clean and free of debris, and special considerations to maintain the component’s integrity during installation. This part is designed for compatibility with various Cummins engine models, ensuring it meets the specific requirements of these engines.

Maintenance and Troubleshooting

Regular maintenance of the 3905870 Rocker Lever Support is recommended to ensure its continued optimal performance. Maintenance may involve inspecting the component for signs of wear or damage and ensuring it remains securely mounted. Common issues that may arise with Rocker Lever Supports include wear on the pivot point or damage to the mounting surface. Troubleshooting steps may involve replacing worn components or adjusting the valve train to ensure proper operation.

Performance Enhancements

Upgrades or modifications to the Rocker Lever Support can potentially enhance engine performance. These enhancements may include improvements in power output, fuel efficiency, and overall engine reliability. By optimizing the valve train’s operation, these modifications can contribute to a more efficient and powerful engine.

Cummins: A Brief Overview

Cummins Inc. is a leader in engine manufacturing, with a rich history of innovation and quality in the commercial truck industry. The company’s expertise in engine components is evident in its commitment to producing parts that meet the high demands of heavy-duty applications. Cummins’ reputation for quality and innovation is built on a foundation of rigorous testing, advanced manufacturing techniques, and a deep understanding of engine systems.

Compatibility of Rocker Lever Support Part 3905870 with Cummins Engines

The 3905870 Rocker Lever Support is designed to fit a variety of Cummins engines. This part is integral in maintaining the operational integrity of the engine’s valve train system. Below is a detailed look at the compatibility of this part with various Cummins engines:

6C8.3 and G8.3 Series

The 3905870 is compatible with the 6C8.3 and G8.3 engines. These engines are known for their robust design and are often used in heavy-duty applications. The part ensures that the rocker levers are properly supported, reducing wear and tear and enhancing the longevity of the engine.

C GAS PLUS CM556 and L GAS PLUS CM556

Both the C GAS PLUS CM556 and L GAS PLUS CM556 engines benefit from the 3905870. These engines are part of Cummins’ range of gas-powered engines, designed for efficiency and reliability. The part is crucial in maintaining the precise operation of the valve train, ensuring optimal performance.

C8.3 G and L8.9G CMOH2.0 L125B

The 3905870 is also suitable for the C8.3 G and L8.9G CMOH2.0 L125B engines. These engines are known for their high power output and durability. The part’s design ensures that the rocker levers are securely supported, which is essential for the smooth operation of the engine.

G8.3 CM558 and GTA8.3 CM558

The G8.3 CM558 and GTA8.3 CM558 engines are another set where the 3905870 is applicable. These engines are part of Cummins’ lineup of high-performance engines, often used in demanding applications. The part’s role in supporting the rocker levers is critical for maintaining the engine’s efficiency and reliability.

QSL9 G CM558

The QSL9 G CM558 engine also fits the 3905870. This engine is known for its power and efficiency, making it suitable for various industrial applications. The part ensures that the rocker levers are properly supported, contributing to the engine’s overall performance.

ISL G CM2180

The ISL G CM2180 engine is another engine that is compatible with the 3905870. This engine is part of Cummins’ ISL series, known for its high power output and reliability. The part’s design ensures that the rocker levers are securely supported, which is essential for the engine’s smooth operation.

L9.3 L105

Lastly, the L9.3 L105 engine is also compatible with the 3905870. This engine is part of Cummins’ range of high-performance engines, often used in demanding applications. The part ensures that the rocker levers are properly supported, contributing to the engine’s efficiency and reliability.

Role of Part 3905870 Rocker Lever Support in Engine Systems

The 3905870 Rocker Lever Support is an essential component in the operation of various engine systems. This part is integral to the functionality of the rocker lever, which in turn plays a significant role in the valve train mechanism of an engine.

In the context of a short engine kit, the 3905870 ensures the proper alignment and operation of the rocker lever. The rocker lever is responsible for transferring the motion from the camshaft to the valves. This transfer is vital for the opening and closing of the valves at precise moments, which is necessary for the engine’s combustion process.

The 3905870 provides a stable mounting point for the rocker lever, allowing it to pivot smoothly as it receives input from the camshaft. This support is designed to withstand the forces exerted during engine operation, ensuring durability and consistent performance.

Furthermore, the integration of the 3905870 with the lever and rocker components enhances the overall efficiency of the valve train. By maintaining the correct geometry and reducing friction, the support contributes to smoother valve operation, which is essential for optimal engine performance and longevity.

Conclusion

In summary, the 3905870 Rocker Lever Support is a key element in the valve train system, facilitating the precise and reliable operation of the rocker lever within the engine’s short kit configuration. Its robust design, compatibility with various Cummins engines, and contribution to engine efficiency and reliability make it a critical component in heavy-duty truck engines.