4068591
Fuel Pump Gear
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$1,249.95 $1,487.44

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Cummins 4068591 Fuel Pump Gear is a component designed for use in the fuel systems of commercial trucks. Its purpose is to facilitate the efficient transfer of fuel from the tank to the engine, ensuring that the vehicle operates smoothly and effectively. The significance of this part lies in its role in maintaining the overall performance and reliability of the truck’s engine.

Function and Operation

The Cummins 4068591 operates within the fuel system by engaging with the fuel pump to create a mechanical action that moves fuel through the system. This gear interacts with other components such as the fuel pump and injectors, ensuring a consistent flow of fuel that is necessary for combustion. The precise operation of this gear is vital for the synchronization of fuel delivery with engine demand 1.

Purpose of the Cummins 4068591 Fuel Pump Gear

This Cummins part plays a role in ensuring efficient fuel delivery by maintaining the correct pressure and flow rate within the fuel system. This contributes to optimal engine performance by providing the necessary fuel at the right time and in the right quantity, which is crucial for the engine’s combustion process 2.

Key Features

The Cummins 4068591 is characterized by its robust design and the use of high-quality materials that enhance its durability and efficiency. Unique attributes of this gear include precision machining for accurate fit and function, as well as materials that resist wear and corrosion, ensuring long-term reliability in demanding commercial truck applications.

Benefits

Utilizing the Cummins 4068591 offers several advantages, including improved fuel efficiency due to its precise operation within the fuel system. Enhanced engine performance is another benefit, as the gear ensures that the engine receives a consistent and adequate fuel supply. Additionally, the reliability of this component contributes to the overall dependability of the truck’s fuel system.

Common Issues and Troubleshooting

Typical problems associated with the Cummins 4068591 may include wear and tear leading to inefficient fuel delivery, or damage that could cause leaks within the fuel system. Diagnostic steps for addressing these issues involve inspecting the gear for signs of wear, ensuring proper alignment and engagement with the fuel pump, and checking for any obstructions or damage that could affect its operation. Solutions may range from cleaning and lubrication to replacement of the gear if necessary.

Maintenance Tips

To ensure the longevity and performance of the Cummins 4068591, regular maintenance practices are recommended. This includes periodic inspection for wear or damage, cleaning to remove any contaminants that could affect its operation, and following manufacturer guidelines for replacement intervals. Adhering to these practices helps maintain the efficiency of the fuel system and the overall performance of the truck.

Integration with Fuel System

The Cummins 4068591 integrates with the broader fuel system of commercial trucks by working in conjunction with fuel filters, lines, and injectors. Its role is to ensure that fuel is delivered under the correct pressure and at the right time, which is essential for the proper functioning of these components and the engine as a whole.

Performance Impact

The efficiency of the Cummins 4068591 has a direct impact on overall engine performance, fuel economy, and emissions. A well-functioning gear ensures that the engine receives the optimal amount of fuel, which can lead to better fuel economy and reduced emissions. Conversely, inefficiencies in the gear’s operation can result in decreased performance and increased fuel consumption.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and a strong reputation in the commercial truck industry, Cummins is committed to providing high-quality engine components that meet the demanding requirements of commercial applications. The company’s dedication to quality and performance is evident in its range of products, including the Cummins 4068591 Fuel Pump Gear.

Cummins Fuel Pump Gear 4068591 Compatibility

The Cummins Fuel Pump Gear part number 4068591 is designed to fit seamlessly with a range of Cummins engines, ensuring optimal performance and reliability. This part is crucial for the proper functioning of the fuel system, as it drives the fuel pump, facilitating the delivery of fuel to the engine’s combustion chambers.

QST30 CM552 Engines

The Cummins QST30 CM552 engine is one of the models that benefit from the precise engineering of the 4068591 Fuel Pump Gear. This engine is known for its robust design and efficiency, making it a popular choice in various industrial and commercial applications. The compatibility of the 4068591 part with the QST30 CM552 engine ensures that the fuel system operates smoothly, contributing to the engine’s overall performance and longevity.

Grouping of Compatible Engines

While the primary focus here is on the QST30 CM552 engine, it is important to note that the 4068591 Fuel Pump Gear is also compatible with other Cummins engines within the same series or similar configurations. This part’s design allows it to fit various engine models, ensuring that users can maintain their engines with confidence, knowing that the fuel pump gear is a reliable component.

By ensuring that the 4068591 Fuel Pump Gear is correctly installed in the QST30 CM552 engine and other compatible models, users can expect enhanced fuel delivery efficiency and improved engine performance. This compatibility underscores Cummins’ commitment to providing high-quality, interchangeable parts that meet the needs of their diverse engine lineup.

Role of Part 4068591 Fuel Pump Gear in Engine Systems

The part 4068591 is an integral component in the functionality of both the drive and fuel pump systems within an engine.

In the drive system, the Fuel Pump Gear works in conjunction with the camshaft or crankshaft to ensure the fuel pump operates at the correct speed and timing. This gear is responsible for transferring rotational energy from the engine’s drive mechanism to the fuel pump, ensuring a consistent and reliable fuel supply to the engine. The precise interaction between the gear and the drive system components is essential for maintaining the engine’s performance and efficiency.

Within the fuel pump system, the Fuel Pump Gear plays a significant role in the operation of the fuel pump. It ensures that the fuel pump can deliver the necessary pressure and volume of fuel to meet the engine’s demands. The gear’s design and material are optimized to withstand the high stresses and pressures within the fuel system, providing durable and efficient performance.

The seamless integration of the Fuel Pump Gear with both the drive and fuel pump systems underscores its importance in ensuring the engine operates smoothly and efficiently.

Conclusion

The Cummins 4068591 Fuel Pump Gear is a critical component in the fuel system of commercial trucks, ensuring efficient fuel delivery and contributing to the overall performance and reliability of the engine. Its robust design, precision machining, and compatibility with various Cummins engines make it a reliable choice for maintaining and enhancing engine performance. Regular maintenance and proper installation are key to maximizing the benefits of this part, ensuring optimal engine operation and fuel efficiency.


  1. Bonnick, A. (2004). A Practical Approach to Motor Vehicle Engineering and Maintenance. Elsevier.

  2. Ferrari, A., & Pizzo, P. (2022). Injection Technologies: Mixture Formation Strategies. SAE International.

SPECIFICATIONS

Package Dimensions
12.6 x 9.1 x 6.2 in
Weight
9.775 lb
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.