4935104
Throttle Lever
Cummins®

Introduction

The Cummins 4935104 Throttle Lever is a component designed for use in commercial trucks. It serves a pivotal role in the operation of these vehicles by allowing the driver to control engine speed and power output. This lever is integral to ensuring that the truck operates efficiently and effectively under various driving conditions.

Basic Concepts of Throttle Levers

A throttle lever is a mechanical device used in engine systems to regulate the amount of fuel and air entering the engine, thereby controlling engine speed and power output. By moving the lever, the driver can increase or decrease the engine’s RPM (revolutions per minute), which in turn affects the vehicle’s acceleration and performance. The throttle lever is connected to the engine’s throttle mechanism, which adjusts the opening of the throttle plate in the carburetor or fuel injection system ¹.

Purpose of the 4935104 Throttle Lever

The Cummins 4935104 Throttle Lever is specifically designed to interface with the engine and transmission systems of commercial trucks. It allows the driver to modulate engine power smoothly and precisely, which is crucial for maintaining control during various driving scenarios. This lever plays a role in the engine’s fuel delivery system by adjusting the throttle position, which directly influences the engine’s performance and the truck’s overall drivability ².

Key Features

The 4935104 Throttle Lever is characterized by several key features that enhance its performance and durability. It is constructed from high-quality materials to withstand the rigors of commercial truck operation. The design includes ergonomic considerations to improve driver comfort and ease of use. Additionally, the lever may incorporate features such as adjustable settings or integrated sensors to provide feedback to the engine control unit (ECU) for optimized performance.

Benefits

The use of the 4935104 Throttle Lever offers several benefits. It provides improved engine control, allowing for more precise modulation of power and speed. This can lead to enhanced driver comfort, as the lever’s design and operation are tailored to reduce fatigue during long drives. Furthermore, optimal throttle control can contribute to increases in fuel efficiency and overall performance, making it a valuable component for commercial truck operators ³.

Installation and Compatibility

Proper installation of the 4935104 Throttle Lever is crucial for ensuring it functions correctly within the truck’s engine system. Installation guidelines should be followed to avoid damage to the component or the engine. The lever is designed to be compatible with specific truck models and engine types, ensuring a seamless integration with the vehicle’s existing systems.

Troubleshooting and Maintenance

Common issues with the 4935104 Throttle Lever may include sticking or difficulty in movement, which can affect engine performance. Troubleshooting steps may involve checking for obstructions, lubricating moving parts, or adjusting the lever’s settings. Regular maintenance, such as cleaning and inspecting for wear, can help ensure the longevity and optimal performance of the throttle lever.

Safety Considerations

When installing, maintaining, or troubleshooting the 4935104 Throttle Lever, it is important to observe safety precautions. This includes ensuring the engine is off and cooled down before beginning any work, using appropriate personal protective equipment, and following all manufacturer guidelines to prevent injury or damage to the component.

Cummins Corporation

Cummins Corporation is a well-established manufacturer in the commercial truck industry, known for its wide range of high-quality engine and component products. With a history of innovation and commitment to excellence, Cummins has built a reputation for reliability and performance in the commercial vehicle sector. The company’s product range includes engines, filtration systems, and aftermarket parts, all designed to meet the demanding requirements of commercial truck operators.

Cummins Throttle Lever 4935104 Compatibility

The Cummins Throttle Lever part number 4935104 is a critical component in the engine’s throttle system, ensuring precise control over the engine’s power output. This part is designed to interface seamlessly with various Cummins engine models, providing a reliable and efficient means of regulating engine speed and performance.

Engine Compatibility

• 4B3.9 Series

  • The 4935104 Throttle Lever is specifically engineered to fit the 4B3.9 engine series. This compatibility ensures that the throttle lever operates smoothly within the engine’s design parameters, maintaining optimal performance and longevity.

• Other Cummins Engines

  • While the primary focus here is on the 4B3.9 series, the 4935104 Throttle Lever is also compatible with other Cummins engine models. This versatility allows for broader application across different engine types, providing a standardized solution for throttle control in various Cummins engines.

Installation and Functionality

The installation of the 4935104 Throttle Lever is straightforward, designed to integrate easily with the engine’s existing throttle mechanism. This part is crafted to ensure that it functions seamlessly with the engine’s control systems, providing consistent and reliable performance. The design of the throttle lever allows for precise adjustments, enabling operators to fine-tune engine speed and power output according to their needs.

Performance and Reliability

The 4935104 Throttle Lever is built to withstand the rigors of continuous operation, ensuring durability and reliability. Cummins’ commitment to quality ensures that this part meets stringent performance standards, providing a dependable solution for throttle control in various engine applications.

Role of Throttle Lever in Engine Systems

The Throttle Lever, identified by part number 4935104, is an essential component in the regulation and control of engine performance. This lever is directly connected to the throttle plate within the carburetor or the throttle body in fuel injection systems. Its primary function is to modulate the airflow entering the engine, which in turn controls the amount of fuel delivered for combustion.

When the Throttle Lever is moved, it adjusts the position of the throttle plate. In carburetor systems, this action directly affects the vacuum level within the intake manifold, which influences fuel metering. In fuel injection systems, the Throttle Lever sends signals to the engine control unit (ECU), which then adjusts fuel delivery based on the throttle position sensor (TPS) readings.

The Throttle Lever also interacts with other components such as the accelerator pedal, where driver input is translated into throttle movement. Additionally, it may be linked to cruise control systems, allowing for automated throttle adjustments to maintain a set speed. In some advanced engine systems, the Throttle Lever is part of a drive-by-wire system, where electronic signals replace traditional mechanical linkages, offering more precise control over engine performance.

Overall, the Throttle Lever plays a significant role in ensuring that the engine operates efficiently under varying conditions, providing the necessary power while maintaining optimal fuel economy and emissions levels.

Conclusion

The Cummins 4935104 Throttle Lever is a vital component in the operation of commercial trucks, offering precise control over engine speed and power output. Its design and features ensure durability, reliability, and optimal performance, making it an essential part for commercial truck operators. Proper installation, maintenance, and adherence to safety guidelines are crucial for maximizing the benefits of this Cummins part.