3925403
Control Rod Pivot Pin
Cummins®

Introduction

The Control Rod Pivot Pin 3925403, manufactured by Cummins, is a vital component in the diesel engine industry, particularly for heavy-duty truck engines. This part is essential for the efficient operation of the fuel injection system, contributing to engine performance and durability.

Function and Operation

The Control Rod Pivot Pin facilitates the movement of the control rod within the fuel injection system. This movement is crucial for the precise delivery of fuel to the engine’s combustion chambers. The pin ensures smooth and consistent operation of the control rod, which is vital for maintaining engine efficiency and performance ¹.

Key Features

This Cummins part is designed with durability and precision engineering in mind. Constructed from high-quality materials, it can withstand the demanding conditions within a heavy-duty truck engine. The pin’s design ensures a snug fit and proper alignment within the engine’s fuel injection system, which is essential for its function ².

Benefits

The use of the Control Rod Pivot Pin 3925403 in heavy-duty truck engines offers several advantages. It contributes to improved engine performance by ensuring that the fuel injection system operates with precision. This can lead to enhanced fuel efficiency, as the engine is able to burn fuel more effectively. Additionally, the reliable operation of the pivot pin under demanding conditions helps to maintain the overall performance and longevity of the engine ³.

Installation and Maintenance

Proper installation of the Control Rod Pivot Pin is important for its function and the engine’s performance. It should be installed according to the manufacturer’s torque specifications and alignment procedures to ensure it fits correctly within the fuel injection system. Regular maintenance, including inspection for wear or damage, is recommended to ensure the longevity and optimal performance of the pivot pin.

Common Issues and Troubleshooting

Typical problems associated with the Control Rod Pivot Pin may include wear, corrosion, or misalignment. These issues can affect the operation of the fuel injection system and, consequently, the engine’s performance. Troubleshooting methods may involve inspecting the pin for signs of wear or damage, cleaning or replacing corroded components, and ensuring proper alignment within the engine.

Safety Considerations

When working with the Control Rod Pivot Pin, it is important to observe safety precautions. This includes proper handling of the component, usage of personal protective equipment, and adherence to manufacturer guidelines. These measures help to ensure the safety of the technician and the proper functioning of the engine.

Cummins Corporation

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including diesel and natural gas engines, as well as related technologies. With a history of innovation and a commitment to quality, Cummins has established a strong reputation in the commercial truck sector. The company’s product portfolio reflects its dedication to providing reliable and efficient power solutions for a variety of applications.

Compatibility of Control Rod Pivot Pin (Part 3925403) with Cummins Engines

The Control Rod Pivot Pin, identified by the part number 3925403 and manufactured by Cummins, is a critical component in the engine’s operation. This part is designed to fit seamlessly within various Cummins engine models, ensuring smooth and reliable performance.

6B5.9

The 6B5.9 engine benefits from the precision engineering of the Control Rod Pivot Pin. This part is integral to the engine’s internal mechanism, providing stability and reducing wear on the connecting rods. Its design ensures that the pivot pin operates efficiently under high-stress conditions, contributing to the engine’s overall durability and performance.

B5.9 G and B5.9 GAS PLUS CM556

Both the B5.9 G and B5.9 GAS PLUS CM556 engines are equipped with the Control Rod Pivot Pin 3925403. This pin is essential for maintaining the alignment and smooth operation of the connecting rods. Its robust construction and precise fitment are crucial for the engines’ longevity and efficiency. The pin’s design allows for minimal friction, which is vital for the high-performance demands of these engines.

G5.9

The G5.9 engine also utilizes the Control Rod Pivot Pin 3925403. This part is engineered to withstand the rigors of continuous operation, ensuring that the engine’s connecting rods pivot smoothly and accurately. The pin’s compatibility with the G5.9 engine is a testament to its versatility and reliability, making it a preferred choice for maintaining engine integrity.

Role of Part 3925403 Control Rod Pivot Pin in Engine Systems

The Control Rod Pivot Pin (part number 3925403) is an integral component in the orchestration of various engine systems, ensuring smooth and precise operation of the throttle and fuel control mechanisms.

In the context of the Air Fuel Throttle Valve, the Control Rod Pivot Pin facilitates the pivotal movement of the control rod, which is essential for adjusting the valve’s position in response to throttle inputs. This adjustment directly influences the air-fuel mixture, impacting engine performance and efficiency.

When integrated into an Assembly Kit, the pin ensures that all moving parts within the kit—such as the bell crank lever and control linkage lever—operate in harmony. This synchronization is vital for maintaining the integrity of the throttle control system.

The Bell Crank Lever relies on the Control Rod Pivot Pin to transmit motion from the control rod to the throttle lever. This transmission is necessary for converting linear motion into rotational motion, which is then used to modulate the throttle position.

In conjunction with the Control Linkage Lever, the pin allows for the precise transfer of force from the throttle control bracket to the throttle lever. This ensures that the throttle responds accurately to driver inputs, which is essential for maintaining control and performance.

The Control Rod itself is supported by the Control Rod Pivot Pin, enabling it to pivot smoothly and transmit motion to connected components. This pivotal action is fundamental for the dynamic adjustment of the throttle and fuel control systems.

The Lever components, including the throttle lever and any additional levers within the system, depend on the pin for their operational flexibility. The pin’s role in these levers ensures that they can move freely and respond to changes in throttle position without hindrance.

The Throttle system, as a whole, benefits from the Control Rod Pivot Pin by ensuring that all connected components can move with minimal friction and maximum precision. This is particularly important in high-performance engines where throttle response can significantly affect overall performance.

The Module and Fuel Control systems also interface with the pin indirectly, as the accurate movement of the throttle and control rods influences fuel delivery and air intake. This interplay is essential for optimizing engine performance and fuel efficiency.

Finally, the Throttle Control Bracket utilizes the Control Rod Pivot Pin to secure the control rod in place while allowing for necessary movement. This bracket-pin-rod assembly is a cornerstone of the throttle control system, ensuring that all components work in unison to deliver precise throttle control.

Conclusion

The Control Rod Pivot Pin 3925403 is a versatile and essential component that fits seamlessly into various Cummins engine models. Its design and precision engineering ensure optimal performance and longevity for these engines, making it a critical part for maintaining engine efficiency and reliability.