Land Rover Discovery 3 L319 Throttle Body 2.7 V6 Diesel 4S7Q-9L444CK

Land Rover Discovery 3 L319 Throttle Body is a key component of the intake system in diesel engines, responsible for precise airflow control. A properly selected and functional throttle body ensures stable engine operation, correct throttle response, and predictable vehicle behavior under various load conditions. By choosing this item from the Throttle Bodies category, you are investing in a technically matched component for your Land Rover.

Specifications and technical data

• SKU: 4S7Q-9L444CK
• Mark: Land Rover
• Condition: Used
• OEM Part Number: 4S7Q-9L444CK
• Substitutable numbers: 4S7Q-9L444CK, 4S7Q9L444CK, 4S7Q9L444CJ, 4S7Q-9L444CJ, 1376408
• Fuel type: Diesel
• Part type: Throttle Body
• Category: Throttle Bodies

Purpose and function in the intake system

The throttle body in a Land Rover Discovery 3 L319 with a Diesel engine is responsible for controlling the amount of air supplied to the cylinders, working in conjunction with the engine management system and other intake components. In diesel units, it plays an important role in, among other things:

• engine shutdown and idle speed stabilization,
• cooperation with the Exhaust Gas Recirculation (EGR) system,
• shaping the torque curve across different RPM ranges,
• reducing vibrations and improving the refinement of the engine unit.

Thanks to a properly functioning throttle body, the engine control system can precisely meter air, which translates into predictable dynamics, correct cold-start operation, and stability when driving under load.

Compatibility and technical parameters

The offered throttle body has been designed specifically for the Land Rover Discovery 3 L319 model with a diesel engine. This means it is matched in terms of:

• body geometry and connection ports for the factory intake manifold,
• electrical interface for the vehicle's wiring harness,
• operating characteristics to the engine control unit maps intended for Diesel units in this model.

The item belongs to the Throttle Bodies group, which facilitates selection within the same area of the intake system and allows for maintaining the consistency of applied technical solutions.

Characteristics of the used part

The throttle body is offered as a used part, sourced from dismantling, which allows for economical repair while maintaining the original design specifications. This type of aftermarket component is particularly attractive for vehicles used intensively, where reasonable service costs are important while maintaining correct operating parameters.

Choosing an original used part for a Land Rover reduces the risk of fitment issues typical of universal aftermarket replacements. As a result, installation is smoother, and the intake system retains its factory configuration.

Benefits of replacing the throttle body in a Diesel engine

A functional throttle body in a diesel unit translates into a number of practical operational benefits:

• smoother engine operation at idle,
• better cooperation with the EGR system and reduction of unwanted RPM fluctuations,
• more stable transitions between loads, especially when driving off-road or with a trailer,
• reduced risk of intake-related error codes in the engine control unit.

For Land Rover Discovery 3 L319 users, this means more predictable vehicle behavior both in daily driving and in off-road conditions, where precise control over the engine unit is of great importance.

Intake system expansion and related parts

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

For drivers interested in improving driving comfort and interior ergonomics, especially during long trips, the article describing the impact of branded seats from dismantling on the perceived quality of vehicle use may be helpful – more information can be found in the material about interior transformation using branded seats from dismantling.