3394905
Throttle Lever Stop
Cummins®

The Throttle Lever Stop 3394905 by Cummins is a component designed to regulate the throttle lever’s movement in heavy-duty trucks. This part ensures that the throttle lever does not exceed its operational limits, thereby maintaining engine performance and safety. Understanding its purpose and significance is vital for anyone involved in the maintenance and operation of heavy-duty trucks.

Function and Operation

The Throttle Lever Stop 3394905 functions by limiting the maximum travel of the throttle lever. When the driver engages the throttle, the lever moves within a predefined range. The stop ensures that this movement does not go beyond safe operational limits. It interacts with the throttle linkage and the engine control system to maintain consistent engine speed and power output. This interaction is crucial for the smooth operation of the truck’s engine ¹.

Purpose of the Throttle Lever Stop

The primary role of the Throttle Lever Stop is to regulate engine speed by preventing the throttle lever from moving beyond its designated range. This regulation is important for maintaining safe and efficient engine operation. By limiting the throttle’s maximum position, the stop helps prevent over-revving, which can lead to engine damage. It also ensures that the driver has precise control over the engine’s power output, enhancing both performance and safety ².

Key Features

The Throttle Lever Stop 3394905 is characterized by its robust design and high-quality materials. It is typically made from durable metals that can withstand the rigors of heavy-duty truck operation. The stop is engineered to be both reliable and easy to install. Its design includes features that allow for easy adjustment, ensuring it can be fine-tuned to meet specific engine requirements.

Benefits

One of the main advantages of the Throttle Lever Stop 3394905 is its contribution to improved engine performance. By ensuring that the throttle lever operates within safe limits, it helps maintain consistent engine speed and power. This results in better fuel efficiency and reduced wear on engine components. Additionally, the stop enhances safety by preventing accidental over-revving, which can be dangerous in heavy-duty applications. Its ease of use and adjustability also make it a practical choice for truck operators and maintenance personnel ³.

Installation and Compatibility

Proper installation of the Throttle Lever Stop is important for its effective function. It should be securely attached to the throttle linkage and adjusted to the correct position. Specific installation guidelines may vary depending on the truck model, so it is important to consult the vehicle’s service manual for detailed instructions. Ensuring that the stop is compatible with the specific engine and throttle system is also important for optimal performance.

Maintenance and Troubleshooting

Regular maintenance of the Throttle Lever Stop ensures its continued reliable operation. This includes periodic inspection for wear or damage and ensuring that it remains properly adjusted. Common issues may include the stop becoming loose or misaligned, which can affect throttle operation. If such issues are detected, they should be addressed promptly to maintain engine performance and safety.

Safety Considerations

When working with the Throttle Lever Stop, it is important to follow proper safety practices. This includes ensuring that the engine is turned off and the throttle linkage is disconnected before making any adjustments. Inspecting the stop for any signs of wear or damage before each use is also important. Proper handling and careful adjustment will help ensure the safe and effective operation of this component.

Cummins Overview

Cummins is a well-established name in the automotive industry, known for its high-quality engines and components. The company has a long history of innovation and excellence, offering a wide range of products designed for heavy-duty applications. Cummins’ reputation for reliability and performance makes its components, like the Throttle Lever Stop 3394905, a trusted choice for truck operators and maintenance professionals.

Throttle Lever Stop (Part 3394905) Compatibility with Cummins Engines

The Throttle Lever Stop, identified by the part number 3394905, is a critical component in the operation of certain Cummins engines. This part is designed to ensure that the throttle lever does not exceed its intended range of motion, thereby maintaining control and safety within the engine’s operational parameters.

G855 Engine

In the G855 engine, the Throttle Lever Stop is integral to the engine’s throttle control system. It works in conjunction with the throttle linkage to provide a mechanical limit that prevents the throttle from opening beyond its designed capacity. This is crucial for maintaining engine performance and preventing potential damage due to over-revving.

N14 G Engine

Similarly, in the N14 G engine, the Throttle Lever Stop serves the same fundamental purpose. It ensures that the throttle lever does not extend past its operational limits, thereby safeguarding the engine from excessive speeds. This part is essential for the smooth and safe operation of the engine, particularly in heavy-duty applications where precise control over the throttle is paramount.

Grouping of Engines

Both the G855 and N14 G engines benefit from the Throttle Lever Stop in similar ways, as they share a common need for precise throttle control. The part’s design and function are tailored to fit seamlessly into the throttle systems of these engines, ensuring compatibility and reliability. This commonality allows for easier maintenance and repair, as the same part can be used across different engine models within the Cummins lineup.

Conclusion

The Throttle Lever Stop 3394905 is an integral component in the operation of engine systems, particularly in conjunction with the valve and throttle mechanisms. This component ensures precise control over the throttle lever’s movement, thereby regulating the airflow into the engine.

In the context of the valve system, this part plays a significant role in maintaining the correct valve timing. By limiting the extent to which the throttle lever can open, it indirectly influences the valve’s operation. This is because the throttle position affects the intake manifold pressure, which in turn impacts valve timing and duration. Proper valve timing is essential for optimal engine performance, fuel efficiency, and emissions control.

When considering the throttle system, the Throttle Lever Stop is equally important. It ensures that the throttle does not open beyond a predetermined limit, which is vital for maintaining engine stability and responsiveness. This component helps in preventing over-acceleration, which could lead to engine damage or unsafe operating conditions. Additionally, it aids in fine-tuning the engine’s performance characteristics, allowing for a balance between power output and fuel economy.

In summary, the Throttle Lever Stop (part 3394905) is a key element in the interplay between the valve and throttle systems. Its role in regulating throttle movement has a direct impact on valve operation and overall engine performance, making it a component of significant importance in engine management systems.