Land Rover Discovery 3 L319 Turbocharger Turbo Actuator 2.7 TDV6 4146R013

Land Rover Discovery 3 L319 Turbocharger Turbo Actuator 2.7 TDV6 is a component from the Turbochargers and parts category, designed for precise control of the turbine operation in the 2.7 TDV6 unit. The used actuator ensures the maintenance of factory boost characteristics, which translates into stable dynamics, proper throttle response, and safe engine load during daily operation.

Specifications and technical data

• SKU: 1357581-1
• Mark: Land Rover
• Condition: Used
• OEM Part Number: 1357581
• Substitutable numbers: 1357581, 4H2Q6K682CG, 4H2Q-6K682-CG
• Part type: Turbocharger Actuator
• Category: Turbos & Parts

Purpose and function of the turbocharger actuator

The turbocharger actuator in the 2.7 TDV6 engine is responsible for controlling the position of the vanes or the boost pressure control valve, which has a direct impact on the torque curve and the refinement of the powertrain. In the Discovery 3 L319 model, a properly functioning actuator is crucial for maintaining smooth acceleration, reducing turbo lag, and maintaining appropriate combustion parameters.

Selecting a component dedicated to a specific Land Rover engine version minimizes the risk of compatibility issues, engine control unit errors, and incorrect boost pressure. As a result, the boost system can operate within the range intended by the manufacturer, which promotes the durability of the turbine and the entire powertrain.

Benefits of using an original Land Rover component

The actuator from the Land Rover parts family has been designed for the specific geometry of the turbocharger and the characteristics of the engine control unit. Using such a solution allows for maintaining:

• consistency of the boost system operation with the factory ECU software,
• stable boost pressure across the full RPM range,
• proper cooperation with pressure and exhaust gas temperature sensors,
• appropriate response to changes in load and driving style.

For workshops and users, this means a lower risk of service returns, reduced need for additional calibration, and easier diagnostics during subsequent inspections. The original solution from the Land Rover group is particularly important in vehicles operated in demanding off-road conditions or under heavy load.

Characteristics of the used component

The presented actuator is a used part, which allows for a significant reduction in repair costs compared to a new OEM component, while maintaining a design consistent with the factory specifications. For many Discovery 3 L319 users, this is a reasonable compromise between repair economy and maintaining the original technical specification of the boost system.

In practice, installing a used actuator is often chosen in cases of:

• mechanical failure or seizure of the existing actuator,
• problems with smooth boost pressure regulation,
• repairs after replacing or refurbishing the turbocharger,
• diagnostics of errors related to the operation of the boost system in the 2.7 TDV6 engine.

Application in the Discovery 3 L319 boost system

In the Discovery 3 L319 model with the 2.7 TDV6 unit, the turbocharger actuator works in close cooperation with the control electronics, pressure sensors, and airflow sensors. A properly selected component allows for maintaining:

• appropriate dynamics at low and medium RPM,
• stable performance during highway driving and towing,
• control over exhaust gas temperature under high load conditions,
• consistency of operation with engine protection systems.

Thanks to this, the Land Rover Discovery 3 L319 Turbocharger Turbo Actuator 2.7 TDV6 is an important element in restoring the correct operating parameters of the boost system after a failure or wear of the previous component.

Complementary elements from the Turbochargers and parts group

If you are planning a comprehensive repair or upgrade of the engine area in your Land Rover and need other elements from the same group, such as turbocharger housings, control valves, or oil supply lines, check the available parts in the Land Rover Turbochargers and parts category.

Technical support and additional materials

When planning broader vehicle modifications, it is worth paying attention not only to the boost system but also to the ergonomics and comfort of using the car. Inspiration regarding interior changes, seat selection, or steering wheels can be found in the article Car interior tuning with Global Parts, which shows how to reasonably use used components while maintaining functionality and aesthetics.

If you are interested in how the use of used OEM components affects the vehicle's downtime in the workshop and the total cost of repair, the material on the availability of car parts off the shelf and their impact on repair time will be helpful, describing the practical aspects of using proven second-hand components.