4306944
Fuel Pump
Cummins®

DISCONTINUED

Cummins®

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

Introduction

The Cummins 4306944 Fuel Pump is a component designed for commercial trucks, ensuring a consistent and adequate fuel supply to the engine. This part contributes to the overall performance and fuel economy of the vehicle 2.

Basic Concepts of Fuel Pumps

A fuel pump moves fuel from the tank to the engine, ensuring delivery at the correct pressure and volume. Types include mechanical, electric, and high-pressure pumps, each with specific applications and characteristics 1.

Role of the 4306944 Fuel Pump in Truck Operation

This Cummins part is integral to truck operation, facilitating fuel transfer from the tank to the engine and maintaining necessary pressure for optimal combustion. It ensures a steady fuel supply, contributing to consistent power output and efficient operation 2.

Key Features of the 4306944 Fuel Pump

The 4306944 is characterized by its robust design and high-quality materials, enhancing durability and performance. It incorporates advanced technological features for improved efficiency and reliability, tailored to withstand commercial truck operations 2.

Benefits of Using the 4306944 Fuel Pump

Utilizing this part offers improved fuel delivery, enhancing engine performance. Its efficient operation can lead to better fuel economy, offering potential cost savings for fleet operators. Reliable performance reduces the likelihood of fuel-related issues, contributing to overall vehicle uptime 2.

Troubleshooting Common Issues with Fuel Pumps

Common issues with fuel pumps, including the 4306944 model, may include engine misfires, difficulty starting, or a decrease in power. Diagnostic steps involve checking fuel pressure and listening for unusual noises. Solutions range from cleaning the fuel system to replacing the pump if necessary 2.

Maintenance Tips for the 4306944 Fuel Pump

Regular maintenance is recommended to ensure longevity and optimal performance. This includes routine inspections for wear or damage, cleaning the fuel system to remove contaminants, and following manufacturer guidelines for replacement intervals 2.

Cummins: A Brief Overview

Cummins Inc. is a well-established manufacturer in the commercial truck industry, known for its wide range of products and strong reputation. The company provides reliable solutions for the transportation sector, with a product portfolio that includes engines, powertrain components, and aftermarket parts 2.

Cummins Fuel Pump 4306944 Compatibility

The Cummins Fuel Pump part number 4306944 is compatible with several engine models, ensuring reliable fuel delivery across different applications.

ISL9 Series Engines

  • ISL9 CM2150 SN
  • ISL9.5 CM2880 L138

QSL9 Series Engines

  • QSL9 CM850 (CM2850)

The 4306944 is engineered to meet the stringent demands of these engines, providing consistent fuel pressure and flow necessary for optimal performance 2.

Integration with Fuel System Components

The 4306944 Fuel Pump plays a role in the engine’s fuel system by drawing fuel from the tank and delivering it under pressure to the fuel injectors or carburetor. It ensures a consistent and adequate fuel supply, which is necessary for optimal performance and efficiency 2.

  1. Fuel Tank: The fuel pump is typically located inside the fuel tank, drawing fuel and beginning the process of pressurizing it for delivery to the engine.
  2. Fuel Lines: Fuel travels through lines designed to withstand the pressure exerted by the fuel pump and transport it safely to the engine components.
  3. Fuel Filter: The fuel often passes through a filter to remove impurities or debris before reaching the engine.
  4. Fuel Injectors: In modern engines, the pressurized fuel is delivered to fuel injectors, ensuring a steady stream of fuel for precise control over the fuel-air mixture and efficient combustion.
  5. Carburetor: In older or simpler engine systems, the fuel may be delivered to a carburetor. The fuel pump provides the necessary pressure to atomize the fuel properly within the carburetor, facilitating a smooth and efficient fuel-air mixture.
  6. Fuel Pressure Regulator: The fuel pump works in conjunction with the fuel pressure regulator to maintain consistent fuel pressure within the system.
  7. Return Line: In some systems, excess fuel is returned to the tank via a return line. The fuel pump manages the flow and pressure, ensuring that only the necessary amount of fuel is used, while the rest is safely returned to the tank 2.

Conclusion

The Cummins 4306944 Fuel Pump is a critical component for the efficient and reliable operation of commercial truck engines. Its role in pressurizing and delivering fuel ensures that the engine receives a consistent and clean fuel supply, which is vital for performance and longevity.


  1. The Automotive Transmission Book Powertrain, Robert Fischer, Ferit Kucukay, Gunter Jurgens, Rolf Najork, and Burkhard Pollak, Springer, 2015

  2. Vocational Vehicles and Applications, Michael Hilgers and Wilfried Achenbach, Springer Vieweg, 2021

SPECIFICATIONS

Weight
0.22 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.