3033739
Gear Fuel Pump
Cummins®

The Cummins 3033739 Gear Fuel Pump is a component designed for use in heavy-duty trucks. It serves a vital function in the fuel delivery system, ensuring that the engine receives a consistent supply of fuel under various operating conditions. This pump is integral to the efficient and reliable operation of diesel engines, particularly in demanding applications where consistent fuel delivery is paramount ¹.

Basic Concepts of Gear Fuel Pumps

A gear fuel pump operates on the principle of positive displacement, where two interlocking gears rotate within a housing to move fuel from the tank to the engine. This type of pump is commonly used in diesel engines due to its ability to deliver fuel at a consistent pressure and volume ². The gear pump’s design allows it to handle the viscosity of diesel fuel effectively, ensuring reliable operation even in extreme conditions. The role of the gear fuel pump in the fuel delivery system is to provide the necessary pressure to overcome the resistance in the fuel lines and injectors, ensuring that the engine receives the precise amount of fuel required for combustion.

Purpose and Role in Truck Operation

The Cummins 3033739 Gear Fuel Pump plays a specific role in the operation of a truck by ensuring consistent fuel delivery to the engine. This is particularly important in heavy-duty applications where the engine may be subjected to varying loads and operating conditions. The pump maintains a steady fuel supply, which is crucial for the engine’s performance and efficiency. By providing consistent fuel pressure, the pump helps to optimize the combustion process, leading to better engine performance and fuel economy ³.

Key Features

The Cummins 3033739 Gear Fuel Pump is characterized by several key features that enhance its performance and durability. Its design incorporates high-quality materials that are resistant to wear and corrosion, ensuring long-term reliability. The pump is engineered to operate efficiently under a range of conditions, with features that reduce noise and vibration. Additionally, the pump’s construction allows for easy maintenance and service, which is beneficial for fleet operators looking to minimize downtime.

Benefits

Using the Cummins 3033739 Gear Fuel Pump offers several benefits, including improved fuel efficiency, reliability, and longevity. The pump’s consistent fuel delivery helps to optimize engine performance, leading to better fuel economy. Its robust construction and reliable operation contribute to reduced maintenance costs and increased uptime for the vehicle. These benefits collectively contribute to lower overall operational costs and enhanced truck performance.

Installation and Integration

Proper installation and integration of the Cummins 3033739 Gear Fuel Pump into a truck’s fuel system are important for ensuring optimal performance. Best practices include following the manufacturer’s guidelines for installation, ensuring that all connections are secure and leak-free. Compatibility with other components in the fuel system should be verified to ensure seamless operation. Regular checks and maintenance can help to identify any potential issues early, ensuring the pump operates efficiently over its lifespan.

Troubleshooting and Maintenance

Common issues that may arise with gear fuel pumps include leaks, inconsistent fuel delivery, and pump failure. Troubleshooting steps may involve checking for proper installation, inspecting for wear or damage, and ensuring that the pump is receiving adequate lubrication. Regular maintenance, such as cleaning the fuel filter and inspecting the pump for signs of wear, can help to prevent issues and ensure the longevity and efficient operation of the Cummins 3033739 Gear Fuel Pump.

Performance Under Various Conditions

The Cummins 3033739 Gear Fuel Pump is designed to perform reliably under a variety of operating conditions. It is capable of maintaining consistent fuel delivery in varying temperatures, altitudes, and load conditions. Its adaptability and reliability in diverse environments make it a suitable choice for heavy-duty applications where the engine may be subjected to extreme conditions.

Cummins Corporation Overview

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 strong reputation in the automotive industry, Cummins is known for its commitment to innovation and quality in manufacturing diesel engines and components. The company’s focus on research and development has led to the creation of advanced products that meet the demanding requirements of modern heavy-duty applications.

Gear Fuel Pump 3033739 Compatibility with Cummins Engines

The Gear Fuel Pump part number 3033739, manufactured by Cummins, is designed to fit seamlessly with a variety of Cummins engines. This part is crucial for ensuring the proper delivery of fuel to the engine, maintaining optimal performance and efficiency.

K19, K38, and K50 Engines

The Gear Fuel Pump 3033739 is compatible with the K19, K38, and K50 engines. These engines are known for their robust design and reliability, often used in heavy-duty applications. The pump’s design ensures it can handle the high-pressure requirements of these engines, providing a consistent fuel supply that supports their demanding operational needs.

N14 MECHANICAL Engine

For the N14 MECHANICAL engine, the Gear Fuel Pump 3033739 is engineered to integrate perfectly with the engine’s fuel system. This engine is widely used in various industries due to its durability and performance. The pump’s precision engineering ensures it meets the specific fuel delivery needs of the N14 MECHANICAL engine, contributing to its overall efficiency and longevity.

NH/NT 855 Engines

The Gear Fuel Pump 3033739 is also suitable for the NH/NT 855 engines. These engines are known for their versatility and are often used in both on-highway and off-highway applications. The pump’s compatibility with these engines ensures that it can deliver the necessary fuel under varying conditions, maintaining the engine’s performance and reliability.

V28 Engine

Lastly, the Gear Fuel Pump 3033739 is designed to fit the V28 engine. This engine is recognized for its power and efficiency, making it a popular choice for various applications. The pump’s design ensures it can handle the specific fuel delivery requirements of the V28 engine, contributing to its smooth operation and longevity.

Role of Part 3033739 Gear Fuel Pump in Engine Systems

The part 3033739 Gear Fuel Pump is integral to the efficient operation of various engine systems. It works in conjunction with several components to ensure optimal fuel delivery and engine performance.

Integration with Governors and Control Systems

When paired with an American Bosch Governor or a Cummins Electronic Fuel Control Governor, the Gear Fuel Pump maintains precise fuel flow regulation. This partnership ensures that the engine receives the correct amount of fuel under varying load conditions, enhancing both performance and fuel efficiency.

Coupling and Drive Mechanisms

The Gear Fuel Pump is often connected via a Coupling to the Fuel Pump & Drive or Fuel Pump and Drive assemblies. This setup allows for the transfer of mechanical energy from the engine to the pump, driving the fuel delivery process. The Fuel Pump Drive component is essential for converting the engine’s rotational motion into the necessary pumping action.

Fuel System Components

In systems utilizing an EBM-Pump or a Master Fuel Pump, the Gear Fuel Pump acts as a primary component in the fuel delivery chain. It works alongside the Fuel Pump Body and Fuel Pump Hardware to create a consistent fuel pressure. This pressure is vital for the proper functioning of downstream components like the Fuel Injection Pump and Injector Stand Audit Kit.

Calibration and Conversion Kits

For systems requiring specific fuel delivery rates, the Gear Fuel Pump can be part of a Fuel Pump Conversion Kit or integrated with a Fuel Pump Sub-Option. These kits often include a Fuel/W/O Calibration Code Pump, allowing for fine-tuning of fuel delivery to meet exact engine requirements.

Auxiliary and Support Components

The Gear Fuel Pump also interacts with On Board Spares and Engine Installation Kit components. These ensure that the pump is securely mounted and can be easily maintained or replaced if necessary. Additionally, the pump is supported by a Fuel Pump Stand Audit Kit, which aids in the inspection and maintenance of the pump during service intervals.

Fuel Shutoff and Variable Speed Systems

In more complex engine systems, the Gear Fuel Pump may be linked to a Valve, Fuel Shutoff or a Pump Fuel Variable Speed system. These components allow for dynamic control of fuel flow, enabling the engine to operate efficiently across a wide range of conditions.

Uncalibrated Systems

In scenarios where the engine system does not require calibration, the Gear Fuel Pump can be used in conjunction with an Uncalibrated Fuel Pump or Pump, Uncalibrated VS. This setup provides a baseline fuel delivery that can be adjusted manually or through simpler control mechanisms.

Conclusion

Overall, the part 3033739 Gear Fuel Pump is a versatile component that plays a significant role in various engine fuel systems, ensuring reliable and efficient fuel delivery. Its compatibility with a range of Cummins engines, coupled with its robust design and reliable performance, makes it a critical component for heavy-duty applications.