Range Rover Sport L494 Throttle Body 3.0 D300 MHEV K6D3-9F991-AA

Range Rover Sport L494 Throttle Body 3.0 D300 MHEV is an intake system component responsible for precisely controlling the amount of air supplied to the engine. A properly selected throttle body ensures stable engine operation, correct throttle response, and predictable vehicle behavior across the full load range. By using an original solution dedicated to the 3.0 D300 MHEV engine, full compatibility with the factory performance characteristics is maintained.

Specifications and technical data

• SKU: LR125519
• Mark: Range Rover
• Condition: Used
• OEM Part Number: LR125519
• Substitutable numbers: K6D3-9F991-AA, K6D39F991AA, LR125519
• Part type: Throttle Body
• Category: Throttle Bodies

Purpose and function in the intake system

The throttle body in the 3.0 D300 MHEV engine is responsible for regulating the air stream drawn into the intake manifold, which has a direct impact on the mixture combustion process. In conjunction with the MHEV mild hybrid system, this component works with the control electronics, enabling smooth transitions between different engine operating modes. A properly functioning throttle body reduces idle fluctuations, improves idle quality, and supports the maintenance of stable exhaust emission parameters.

Benefits of using an original throttle body

Using a dedicated throttle body for the Range Rover Sport L494 with the 3.0 D300 MHEV engine allows for the preservation of the engine's factory performance parameters. The original design ensures:

• proper cooperation with the factory engine control unit and MHEV system,
• appropriate opening and closing characteristics of the throttle valve,
• stable response to accelerator pedal input across the full RPM range,
• maintenance of correct combustion and emission parameters.

As a result, the driver receives predictable, consistent vehicle behavior, and the powertrain operates under conditions close to factory specifications. This is particularly important in modern diesel units with a mild hybrid system, where precision in air control is crucial for the durability and efficiency of the entire system.

Product characteristics and installation

The offered throttle body belongs to the Throttle Bodies category and is intended for Range Rover Sport L494 series vehicles equipped with the 3.0 D300 MHEV engine. The component is structurally prepared for installation in the factory location, maintaining original mounting points and connections to the intake system and electrical wiring. This type of solution facilitates service work, reduces replacement time, and minimizes the risk of fitment issues.

As a used part, the throttle body allows for an economical repair of the intake system while maintaining the manufacturer's original specifications. Proper selection of the component for the specific engine version is key to avoiding ECU errors, limp mode, and performance loss.

Operation, diagnostics, and impact on engine performance

Symptoms of wear or malfunction of the throttle body may include uneven idling, power loss, delayed throttle response, or the appearance of error messages in the diagnostic system. In modern diesel units, such as the 3.0 D300 MHEV, a functional throttle body is important not only for dynamics but also for cooperation with exhaust aftertreatment systems.

For vehicles with a diesel engine, it is also worth paying attention to the condition of the fuel injection system, which works closely with the intake system. To learn more about typical symptoms and the consequences of neglect in this area, the article Diesel injector faults – how to recognize them and the risks of neglecting them, which describes symptoms, consequences, and the basics of diagnostics, may be helpful.

Expanding the Range Rover intake system

If you are planning a comprehensive repair or upgrade of the engine area in your Range Rover and need other elements from the same group, such as additional throttle bodies, airflow control elements, or components working with the intake system, check the available parts in the Range Rover Throttle Bodies category.

Summary

Range Rover Sport L494 Throttle Body 3.0 D300 MHEV is a solution intended for users who expect to maintain factory engine performance characteristics and proper cooperation with the mild hybrid system. Choosing an original throttle body from the Throttle Bodies category allows you to restore the correct operating parameters of the engine, reduce the risk of ECU errors, and ensure predictable vehicle behavior in daily use.