3917845
Throttle Lever
Cummins®

Introduction

The Cummins 3917845 Throttle Lever is a critical component for commercial trucks, enabling drivers to control engine speed and power output. This part ensures efficient and safe truck operation by allowing performance adjustments according to driving conditions and requirements.

Basic Concepts of Throttle Levers

A throttle lever regulates the fuel and air mixture entering the engine, allowing drivers to control engine speed and power output. This control is essential for vehicle operation, enabling drivers to match engine performance to road and load demands ¹.

Purpose of the Cummins 3917845 Throttle Lever

Designed for truck engine control systems, the Cummins 3917845 Throttle Lever modulates engine performance by adjusting throttle position. This allows precise control over engine speed and power, optimizing truck performance for various scenarios. The lever works with the engine’s electronic control unit (ECU) for smooth operation ⁴.

Key Features

The Cummins 3917845 Throttle Lever features a robust design and high-quality materials, ensuring durability and reliability under demanding commercial truck conditions. It provides precise control and is designed for easy integration with the truck’s engine system, maintaining accurate and consistent performance ².

Benefits of Using the Cummins 3917845 Throttle Lever

Using this Cummins part offers improved engine control, allowing for precise adjustments to engine speed and power. This enhanced control can improve driver responsiveness, fuel efficiency, and overall performance. The lever’s design and integration with the engine control system contribute to efficient and reliable truck operation ³.

Installation and Integration

Proper installation and integration of the Cummins 3917845 Throttle Lever are vital for optimal performance. This may involve specific adjustments or calibrations to ensure the lever operates correctly with the engine’s electronic control unit. Following manufacturer guidelines during installation is recommended for the best results ⁴.

Troubleshooting Common Issues

Common issues with the Cummins 3917845 Throttle Lever may include difficulties in adjusting the throttle position or inconsistencies in engine performance. Troubleshooting involves checking the lever’s alignment and calibration, ensuring correct installation, and verifying no obstructions or damage to the lever or its connections. Addressing these issues promptly helps maintain lever functionality and truck performance ².

Maintenance Tips

Regular maintenance is recommended to ensure the Cummins 3917845 Throttle Lever operates optimally and has a long service life. This includes periodic inspections for wear or damage, cleaning to remove dirt or debris, and lubrication of moving parts for smooth function. Adhering to a maintenance schedule can help prevent issues and ensure reliable performance ³.

Cummins 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. Known for producing high-quality, reliable components, Cummins meets the demanding requirements of commercial vehicle operations. The company’s extensive product range and commitment to excellence have established it as a trusted name in the industry ⁴.

Compatibility with Cummins Engines

The Throttle Lever part number 3917845 is designed to integrate seamlessly with a range of Cummins engines, controlling engine power output by regulating airflow into the combustion chamber.

Compatibility with 4B3.9 Engines

The 4B3.9 engine series benefits from the precise control offered by the Throttle Lever part 3917845, ensuring smooth and efficient operation with responsive adjustments to engine performance. The lever is tailored to fit the specific mechanical and operational requirements of the 4B3.9 engine, ensuring optimal performance and reliability ².

Compatibility with 6B5.9 Engines

The 6B5.9 engine series is well-suited for the Throttle Lever part 3917845, providing the necessary precision and durability to handle the demands of the 6B5.9 engine. The integration of this throttle lever with the 6B5.9 engine ensures consistent performance across various operational conditions ³.

Grouping of Engine Models

The Throttle Lever part 3917845 is engineered to fit within the broader family of Cummins engines, including but not limited to the 4B3.9 and 6B5.9 models. Its design allows it to be a versatile component across multiple engine types, providing a standardized solution for throttle control in various Cummins engine applications ⁴.

Role of Part 3917845 Throttle Lever in Engine Systems

The 3917845 Throttle Lever is a key component in engine performance orchestration, interfacing with several key systems to modulate power output and ensure efficient operation.

Interaction with the Electronic Engine Control System (EECS)

The 3917845 Throttle Lever is pivotal in the Electronic Engine Control System (EECS), translating driver input into a signal the EECS can interpret. When the lever is moved, it adjusts the airflow into the engine, which the EECS monitors via sensors. This data is used to make real-time adjustments to fuel delivery and ignition timing, optimizing engine performance and fuel efficiency ¹.

Coordination with the Electronic Governor Linkage

In systems equipped with an Electronic Governor Linkage, the 3917845 Throttle Lever maintains consistent engine speed under varying loads. The lever’s position is continuously monitored by the governor, which uses this information to adjust the fuel injection rate, ensuring stable engine speed regardless of the load ².

Integration within the Overall System

The 3917845 Throttle Lever is a key component in the broader system architecture, ensuring the engine responds accurately to driver commands while allowing the EECS to make fine-tuned adjustments for optimal performance. This integration is vital for the seamless operation of modern engines, where precision and efficiency are paramount ³.

Influence on Electronic Engine Control

The position of the 3917845 Throttle Lever directly influences Electronic Engine Control (EEC) strategies. By providing a clear signal of the desired engine load, it allows the EEC to implement the most appropriate control algorithms, including adjustments to turbocharging, variable valve timing, or other performance-enhancing features, all aimed at delivering the best possible engine response and efficiency ⁴.

Conclusion

The Cummins 3917845 Throttle Lever is a vital component for commercial trucks, offering precise control over engine speed and power output. Its robust design, compatibility with various Cummins engines, and integration with the Electronic Engine Control System ensure efficient and reliable truck operation. Regular maintenance and proper installation are key to maximizing the benefits of this part.