4941066
Fuel Pump
Cummins®

Introduction

The Cummins 4941066 Fuel Pump is a component designed for use in commercial trucks. It ensures a consistent and reliable supply of fuel to the engine, contributing to the overall performance and efficiency of the vehicle. This part is engineered to meet the demanding requirements of heavy-duty applications.

Basic Concepts of Fuel Pumps

A fuel pump moves fuel from the tank to the engine by creating a pressure differential. In the context of a truck, the fuel pump ensures that the engine receives the necessary fuel at the correct pressure and volume for optimal combustion ¹.

Purpose of the Cummins 4941066 Fuel Pump

The Cummins 4941066 Fuel Pump delivers fuel from the tank to the engine in commercial trucks. It ensures a steady supply of fuel, which is essential for maintaining engine performance and efficiency. This pump operates under various conditions, providing the necessary fuel pressure and volume to support the engine’s demands.

Key Features

This Cummins part features a robust design and is constructed from high-quality materials to ensure durability and performance. Its design includes precision-engineered components that enhance its efficiency and reliability. Additionally, the pump is built to withstand the rigors of heavy-duty use, making it suitable for commercial truck applications.

Benefits

Using the Cummins 4941066 Fuel Pump offers several benefits. It contributes to improved fuel efficiency by ensuring that the engine receives the optimal amount of fuel. The pump’s reliable operation enhances the overall reliability of the truck, reducing the likelihood of fuel-related issues. Furthermore, its durable construction promotes longevity, providing value over the vehicle’s lifespan.

Installation and Compatibility

Proper installation of this part is important for ensuring its effective operation. It is compatible with a range of truck models and engine types, making it a versatile choice for fleet managers and maintenance professionals. Adherence to manufacturer guidelines during installation helps maintain the pump’s performance and durability.

Maintenance and Troubleshooting

Regular maintenance of this Cummins part is important for ensuring optimal performance. This includes periodic inspection, cleaning, and replacement of worn-out components. Troubleshooting common issues such as fuel delivery problems or pump failure involves checking for blockages, ensuring proper installation, and verifying that the pump is receiving adequate power.

Performance and Efficiency

The Cummins 4941066 Fuel Pump is designed to enhance the performance and efficiency of commercial trucks. By providing a consistent supply of fuel at the correct pressure, it supports efficient combustion and contributes to overall engine performance. This, in turn, can lead to improved fuel consumption and enhanced truck operation.

Safety Considerations

Safety is a paramount consideration when installing, operating, and maintaining this part. Proper handling of fuel and adherence to manufacturer guidelines are important practices. This includes ensuring that the pump is installed correctly, operating within specified parameters, and maintained according to recommended schedules to prevent accidents and ensure safe operation.

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 reputation for quality, Cummins is committed to producing high-quality automotive components that meet the needs of its customers. The company’s dedication to excellence is reflected in its wide range of products, including the Cummins 4941066 Fuel Pump.

Cummins Fuel Pump 4941066 Compatibility

The Cummins Fuel Pump part number 4941066 is designed to fit a variety of Cummins engines, ensuring optimal fuel delivery and performance. Below is a detailed description of the engines with which this fuel pump is compatible:

B6.7 Series Engines

• B6.7 CM2670 B164C
• ISB/ISD 4.5 CM2150 B119

ISB/ISD 6.7 Series Engines

• ISB/ISD 6.7 CM2150 SN

ISBE Series Engines

• ISBE CM2150
• ISBE4 CM850

QSB Series Engines

• QSB 4.5 CM850 (CM2850)
• QSB 6.7 CM850 (CM2850)
• QSB 7 CM2880 B117

This fuel pump is engineered to meet the specific requirements of these engines, ensuring reliable fuel supply and efficient engine operation.

Role of Part 4941066 Fuel Pump in Engine Systems

The part 4941066 Fuel Pump is an integral component in the fuel delivery system of an engine. Its primary function is to draw fuel from the tank and deliver it to the engine at the required pressure and volume. This ensures that the engine receives a consistent and adequate fuel supply for optimal performance.

Interaction with Fuel Injectors

Once the fuel pump delivers fuel to the engine, it is pressurized and sent to the fuel injectors. The fuel injectors then atomize the fuel into a fine mist, which is injected into the combustion chamber. This precise delivery of fuel is essential for efficient combustion and power generation.

Coordination with the Fuel Filter

Before the fuel reaches the injectors, it passes through the fuel filter. The fuel filter removes any impurities or contaminants from the fuel, ensuring that only clean fuel is delivered to the engine. The fuel pump must provide sufficient pressure to overcome the resistance of the fuel filter and deliver fuel efficiently.

Relationship with the Fuel Pressure Regulator

The fuel pressure regulator works in conjunction with the fuel pump to maintain a consistent fuel pressure within the system. The regulator adjusts the pressure to ensure that the fuel injectors operate within their specified parameters, promoting efficient fuel delivery and combustion.

Impact on Engine Performance

The efficiency of the fuel pump directly influences engine performance. A well-functioning fuel pump ensures that the engine receives the correct amount of fuel under various operating conditions, from idle to full throttle. This consistent fuel delivery helps maintain engine power, fuel efficiency, and overall performance.

Integration with the Fuel Tank

The fuel pump is typically located inside the fuel tank, where it draws fuel from the tank’s reservoir. The design of the fuel tank and the placement of the fuel pump are critical for ensuring that the pump can operate efficiently, even as the fuel level in the tank changes.

Role in Fuel Return System

In some engine systems, excess fuel is returned to the tank via a fuel return line. The fuel pump must be capable of handling this return flow without a significant drop in pressure, ensuring that the fuel system remains balanced and efficient.

Contribution to Fuel Economy

An efficiently operating fuel pump contributes to better fuel economy. By delivering the right amount of fuel at the correct pressure, the pump helps the engine operate more efficiently, reducing fuel consumption and emissions.

Support for Engine Start-Up

During engine start-up, the fuel pump primes the fuel system, ensuring that fuel is readily available to the injectors. This quick response is essential for smooth engine start-up and stable idle operation.

Conclusion

The Cummins 4941066 Fuel Pump plays a significant role in the fuel delivery system, interacting with various components to ensure efficient and reliable engine operation. Its robust design, compatibility with a range of engines, and contribution to fuel efficiency make it a valuable component for commercial trucks.