Range Rover L405 EGR Exhaust Gas Recirculation Valve 4.4 SDV8 AL3Q-9D475-AA

Range Rover L405 EGR Exhaust Gas Recirculation Valve 4.4 SDV8 is a component from the EGR valves and parts category, designed for 4.4 SDV8 diesel engines. It is responsible for controlled exhaust gas recirculation, which affects the engine's performance, emission levels, and the stability of the diesel engine's parameters.

Specifications and technical data

• SKU: AL3Q-9U483-DE
• Mark: Range Rover
• Condition: Used
• OEM Part Number: AL3Q-9U483-DE
• Substitutable numbers: AL3Q-9D475-AA, AL3Q9D475AA, AL3Q-9U483-DE, AL3Q9U483DE
• Fuel type: Diesel
• Category: EGR Parts & Valves

Function and role of the EGR valve in a diesel engine

The exhaust gas recirculation valve in a diesel engine is responsible for precisely directing a portion of the exhaust gases back into the intake system. In practice, this translates into:

• lower combustion temperatures and reduced nitrogen oxides,
• more stable operation of the 4.4 SDV8 unit across a wide range of loads,
• more predictable throttle response when the EGR system is functioning correctly.

A properly functioning EGR valve helps maintain the correct mixture parameters, which is important for both performance and compliance with emission standards.

Compatibility and technical parameters

The presented EGR valve is designed for diesel-powered engines, in accordance with the factory specifications for the Range Rover 4.4 SDV8 version. The product belongs to the EGR valves and parts category, meaning it is a component that works directly with the intake system and engine management.

Thanks to the use of the original design intended for the Range Rover L405, the correct mounting points, flow geometry, and valve operating characteristics are maintained, which facilitates installation and subsequent operation.

Product characteristics and condition

The offered item is an original Range Rover part from the secondary market, in used condition. This type of component allows for an economical repair of the exhaust gas recirculation system while maintaining the vehicle's factory specifications. A used EGR valve is a solution often chosen for:

• clearing errors related to improper EGR system operation,
• restoring factory engine performance parameters after a valve failure,
• preventive maintenance in vehicles operated under demanding conditions.

Using an original component from the same design group reduces the risk of fitment issues and minimizes the need for installation modifications.

Benefits of using an original EGR valve

Choosing an original exhaust gas recirculation valve for the Range Rover L405 4.4 SDV8 allows for maintaining the consistency of the entire engine control system. Key advantages include:

• compatibility with the factory engine control unit software,
• appropriate exhaust gas flow characteristics across the entire RPM range,
• proper cooperation with other intake and exhaust system components.

For the user, this means a lower risk of recurring faults, stable engine operation, and easier diagnostics in the future.

Technical support and additional information

If you are planning a comprehensive repair or upgrade of the engine area in your Range Rover and need other components from the same group, such as valves, hoses, or control modules, check the available parts in the Range Rover EGR valves and parts category.

You can find more about the advantages of using original components from the secondary market, their impact on safety, and the cost-effectiveness of repairs in the article: Quality assurance and OEM safety – why are used original car parts the best choice for your vehicle?.