Range Rover L405 4.4 448DT High Pressure Injection Fuel Pump AL3Q-9B395-EB

Range Rover L405 Fuel Injection Pump 4.4 448DT AL3Q-9B395-EB is a specialized, used high-pressure fuel pump designed for diesel engines. This component is responsible for precisely supplying the injection system, which is crucial for stable engine operation, performance, and fuel consumption.

Specifications and technical data

• SKU: LR045642
• Mark: Range Rover
• Condition: Used
• OEM Part Number: LR045642
• Substitutable numbers: LR045642, AL3Q9B395EB, AL3Q-9B395-EB, 0445010627, 0 445 010 627
• Fuel type: Diesel
• Part type: Fuel Injector Pump
• Category: High Pressure Fuel Pumps

Technical Characteristics of the Injection Pump

The presented pump belongs to the category of high-pressure fuel pumps, designed to operate in modern direct injection systems in Diesel engines. The pump's construction allows for generating the high operating pressure necessary for the correct functioning of the injectors, ensuring proper fuel delivery across the entire engine load range.

Adaptation for Diesel fuel means an optimized design of the pumping sections and seals for the properties of diesel oil, which contributes to durability and stable operating parameters over a longer service life.

Purpose and Compatibility

The 4.4 448DT Fuel Injection Pump was developed for use in the power units found in the Range Rover L405 model. Proper structural adaptation to the specific engine type ensures correct cooperation with the factory control system, common rail, and injectors.

Thanks to the use of dedicated part numbers and interchangeable numbers, the pump can be selected by OEM designations as well as by references from injection system manufacturers. This facilitates precise identification of the component during service or fuel system upgrades.

Benefits of Using a High-Pressure Fuel Pump

An efficient high-pressure pump in a Diesel engine translates into a number of practical operational benefits:

• Stable common rail pressure – a condition for uniform injector operation and smooth engine running across the entire RPM range.
• Improved engine running culture – reduction of vibrations, jerking, and starting problems resulting from improper fuel supply.
• Fuel consumption optimization – precise diesel fuel metering helps maintain factory fuel economy.
• Correct cooperation with engine electronics – proper fuel pressure values facilitate diagnostics and minimize the risk of errors in the control unit.

Condition, Origin, and Service Application

The offered pump is a used component, which is an attractive solution for users looking for a technically sound part at a reasonable price. This type of part is ideal as a replacement in case of factory pump failure, fuel pressure problems, or during comprehensive repair of the Diesel engine's injection system.

Due to the nature of the product, installation in a specialized service center with experience in common rail systems and appropriate diagnostic equipment is recommended. Proper installation and bleeding of the fuel system are crucial for achieving full pump functionality and avoiding secondary damage.

Technical Support and Part Selection

When selecting an injection pump, it is advisable to use OEM designations and reference numbers, as well as vehicle data (model, generation, engine type). This facilitates matching the component to the specific car configuration and minimizes the risk of incompatibility. In case of doubt, information from service documentation and reading fuel system operating parameters from a diagnostic computer can also be helpful.

To better understand the principles of operation and diagnostics of the fuel supply system, it is worth reading the article describing injectors, pumps, and fuel tanks – fuel system – injectors, pumps, and fuel tank: maintenance and repair. You will find practical tips on operation and repair of system components there.

If you are considering purchasing parts from the secondary market and want to make informed choices, the guide used parts – a guide to the best offers in the automotive store will also be helpful, discussing the principles of safe selection of used components.

Related Range Rover High-Pressure Fuel Pumps

If you are also looking for other Range Rover high-pressure fuel pumps compatible with different engine versions and model generations, check out our dedicated category: Range Rover high-pressure fuel pumps. This will allow you to easily compare available variants and select the right part for your vehicle.