Land Rover Discovery 3 L319 Air Intake Throttle Body 2.7 V6 4S7Q-9L444-CH

Land Rover Discovery 3 L319 Air Intake Throttle Body 2.7 V6 is an intake system component designed for the diesel engine, responsible for precise control of the intake air volume. This used, original throttle body from this series ensures the maintenance of factory engine performance parameters and stable integration with the control electronics. It is a solution for users who expect consistency with the factory design and want to maintain the correct operating characteristics of the 2.7 V6 Diesel engine.

Specifications and technical data

• SKU: 1348673
• Mark: Land Rover
• Condition: Used
• OEM Part Number: 1348673
• Substitutable numbers: 1348673, 4S7Q-9L444-CH, 4S7Q9L444CH
• Fuel type: Diesel
• Part type: Throttle Body
• Category: Throttle Bodies

Function and role of the air throttle body in the 2.7 V6 Diesel engine

The air throttle body in a Land Rover Discovery 3 L319 running on Diesel fuel is responsible for controlling airflow in the intake manifold and working in conjunction with the exhaust gas recirculation system and the idle control system. A properly functioning component of this type:

• stabilizes idle speed under variable engine load,
• supports smooth transitions between engine operating phases,
• reduces unwanted vibrations and jerking when releasing the accelerator pedal,
• ensures correct operating conditions for auxiliary systems, such as exhaust gas control.

By maintaining the original geometry and control characteristics, the intake system remains tuned to the factory engine control unit software, which is important for the durability and predictability of the 2.7 V6 unit.

Compatibility with Land Rover Discovery 3 L319

The offered throttle body has been designed with the specific architecture of the 2.7 V6 engine in the Land Rover Discovery 3 L319 in mind. This means it is matched in terms of:

• the layout of ports and air channels in the intake system,
• mounting points to the manifold and engine accessories,
• interface with the wiring harness and engine control unit,
• throttle plate operating range and control characteristics.

Such compatibility allows for installation without the need for modifications to the system, which is essential for maintaining consistency with the factory intake system design and for subsequent computer diagnostics.

Performance characteristics of the used component

A used air throttle body is a solution that allows for economical repair while maintaining the original design. This type of component is particularly interesting for users who:

• want to restore correct engine operation after a throttle body failure,
• avoid experimenting with aftermarket replacements of uncertain characteristics,
• plan further vehicle operation in off-road or mixed conditions,
• expect compatibility with existing control software.

Choosing a used throttle body from this series allows you to maintain factory airflow control parameters, which is important for the engine's refinement and the predictability of the throttle response.

The importance of a correctly selected throttle body in the intake system

In the 2.7 V6 diesel engine used in the Discovery 3 L319, the air throttle body is a component that works with many sub-assemblies, which is why its selection affects:

• stability of operation at idle and under partial load,
• proper functioning of emission control systems,
• engine response to changes in load and accelerator pedal position,
• driving comfort both off-road and on paved roads.

A properly selected throttle body from the Throttle Bodies group for this model allows you to maintain the correct engine performance parameters without the need for interference with the software or engine mechanics.

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

Additional technical support and knowledge

When upgrading or repairing the drivetrain, it is worth paying attention to the selection of gear ratios and the cooperation of individual components to maintain the consistency of the entire drivetrain with the engine's characteristics. Extended information on the configuration of drivetrain components and their impact on driving style can be found in the article Dismantled drive axles and differentials – how to choose gear ratios for your driving style, which can be a practical supplement when planning broader service work.