5264250
Fuel Pump
Cummins®

Introduction

The Cummins 5264250 Fuel Pump is a component designed for use in commercial trucks. It plays a significant role in the fuel delivery system, ensuring that the engine receives a consistent supply of fuel under various operating conditions. This part is integral to maintaining the performance and efficiency of the truck’s engine.

Basic Concepts of Fuel Pumps

A fuel pump is a device that moves fuel from the tank to the engine. In the context of a truck’s fuel system, the pump ensures that fuel is delivered at the correct pressure and flow rate to support combustion. There are several types of fuel pumps, including mechanical, electric, and high-pressure pumps, each suited to different applications and engine requirements ¹.

Role of the Cummins 5264250 Fuel Pump in Truck Operation

This Cummins part plays a specific role in the fuel delivery system of a truck. It is responsible for maintaining consistent fuel pressure and flow to the engine. This ensures that the engine operates efficiently and effectively, regardless of the load or operating conditions. The pump’s design allows it to handle the demands of commercial truck engines, providing reliable fuel delivery.

Key Features of the Cummins 5264250 Fuel Pump

This part is characterized by several key features that enhance its performance and reliability. Its design incorporates durable materials that withstand the rigors of commercial truck operation. Additionally, the pump may include technological aspects such as advanced filtration systems to ensure clean fuel delivery and components that reduce noise and vibration.

Benefits of Using the Cummins 5264250 Fuel Pump

Utilizing this part offers several advantages. These include improved fuel efficiency, as the pump ensures optimal fuel delivery to the engine. Enhanced engine performance is another benefit, as consistent fuel pressure and flow contribute to smoother operation. The pump’s reliability under various operating conditions also ensures that the truck can perform efficiently in different environments.

Troubleshooting and Maintenance Suggestions

Common issues with this part may include fuel delivery inconsistencies or pump failure. Diagnostic tips for addressing these issues involve checking for proper fuel pressure, inspecting electrical connections, and ensuring the pump is free from contaminants ². Regular maintenance practices, such as filter changes and system checks, can help ensure the longevity and optimal performance of the pump.

Integration with Truck Fuel Systems

This part integrates seamlessly with the overall fuel system of a truck. It is designed to be compatible with other components within the system, playing a vital role in the fuel delivery process. This integration ensures that the pump can effectively support the engine’s fuel requirements, contributing to the truck’s overall performance.

Performance in Various Operating Conditions

This Cummins part is engineered to perform across a range of operating conditions. It can handle varying temperatures, altitudes, and load conditions, ensuring consistent fuel delivery to the engine. This versatility makes it suitable for use in diverse commercial truck applications, from long-haul transportation to heavy-duty operations.

Cummins: A Brief Overview

Cummins Inc. is a well-established manufacturer in the commercial truck industry, known for its commitment to innovation and quality. The company offers a wide range of products, including engines, filtration systems, and fuel delivery components. Cummins’ reputation for reliability and performance is built on a history of developing solutions that meet the demanding requirements of commercial truck operators.

Cummins Fuel Pump 5264250 Compatibility

The Cummins Fuel Pump part number 5264250 is designed to fit seamlessly with a range of Cummins engines, ensuring optimal fuel delivery and engine performance. This part is engineered to meet the specific needs of the following engine models:

• ISB CM2150
• ISB6.7 CM2250
• QSB6.7 CM2250
• QSB6.7 M CM2250

For the ISB CM2150 and ISB6.7 CM2250 engines, the fuel pump 5264250 is a critical component that ensures the engine receives the correct amount of fuel for efficient operation. These engines, known for their robust performance, benefit from the precision and reliability of this fuel pump.

Similarly, the QSB6.7 CM2250 and QSB6.7 M CM2250 engines also rely on the 5264250 fuel pump to maintain optimal fuel pressure and flow. This compatibility ensures that these engines can operate at peak efficiency, whether in heavy-duty applications or demanding conditions.

By using the Cummins Fuel Pump part number 5264250, owners of these engines can expect consistent performance and reliability, contributing to the overall longevity and effectiveness of their machinery.

Role of Part 5264250 Fuel Pump in Engine Systems

This part is an essential component within the fuel delivery system of an engine. Its primary function is to draw fuel from the fuel tank and deliver it to the engine’s fuel injectors or carburetor under the necessary pressure. This ensures a consistent and reliable fuel supply, which is fundamental for the engine’s combustion process.

Integration with Fuel Injectors

When paired with fuel injectors, the 5264250 Fuel Pump works in harmony to provide precise fuel metering. The pump maintains the required fuel pressure, allowing the injectors to atomize the fuel efficiently. This fine mist of fuel mixes with air in the combustion chamber, leading to a more complete and efficient burn.

Compatibility with Carburetors

In engines equipped with carburetors, the 5264250 Fuel Pump ensures a steady fuel flow. The pump delivers fuel to the carburetor, where it is mixed with air before entering the combustion chamber. Consistent fuel pressure is vital for maintaining the correct air-fuel ratio, which is essential for optimal engine performance and fuel efficiency.

Interaction with Fuel Filter

The fuel pump also interacts with the fuel filter, which is positioned between the pump and the engine. The filter screens out impurities from the fuel, protecting the pump and other downstream components from damage. A clean fuel supply ensures the longevity and efficiency of the fuel pump and the entire fuel system.

Role in Fuel Pressure Regulator

In systems with a fuel pressure regulator, the 5264250 Fuel Pump maintains the necessary pressure upstream of the regulator. The regulator then fine-tunes the pressure to meet the engine’s specific requirements under varying operating conditions. This dynamic pressure management is key to ensuring the engine operates smoothly across different loads and speeds.

Contribution to Fuel Rail

In fuel-injected engines, the pump delivers fuel to the fuel rail, a distribution pipeline that supplies fuel to each injector. The consistent pressure maintained by the 5264250 Fuel Pump ensures that each injector receives the same amount of fuel, promoting uniform cylinder fueling and balanced engine performance.

Support for Fuel Tank Sending Unit

The fuel pump often works in conjunction with the fuel tank sending unit, which monitors the fuel level. Accurate fuel level readings are essential for efficient fuel management and preventing engine shutdowns due to fuel starvation.

Conclusion

In summary, the 5264250 Fuel Pump is a pivotal component that ensures the engine receives a consistent and pressurized fuel supply, interacting seamlessly with various other components to maintain optimal engine performance.