Land Rover Discovery 3 L319 2.7 V6 276DT Fuel Injector 7H2Q-9K546-CB

Land Rover Discovery 3 L319 2.7 V6 276DT Fuel Injector is an original fuel system component designed for the 2.7 V6 diesel engine in the Discovery 3 model. The precisely calibrated injection characteristics ensure stable engine operation, proper combustion, and predictable performance. This is a solution for users who expect factory compatibility, proper engine refinement, and the maintenance of parameters in accordance with the manufacturer's specifications.

Specifications and technical data

• SKU: 7H2Q-9K546-CB-1
• Mark: Land Rover
• Condition: Used
• OEM Part Number: 7H2Q-9K546-CB
• Substitutable numbers: 7H2Q-9K546-CB, 7H2Q9K546CB
• Part type: Fuel Injector
• Category: Fuel Injectors

Purpose and function of the injector

The presented fuel injector operates in the high-pressure system of the Land Rover Discovery 3 L319 2.7 V6 276DT diesel engine. Its task is to precisely dose fuel into the combustion chamber, maintaining the correct pressure, opening time, and spray pattern. A properly functioning injector contributes to:

• even operation of all cylinders,
• stable idle speed,
• correct dynamics during acceleration,
• reduction of smoke and engine operating noise.

By maintaining factory parameters, this component allows you to keep the efficiency of the injection system at the level required for the 2.7 V6 276DT engine, which is crucial for both engine durability and driving comfort.

Benefits of using an original injector

Using a dedicated fuel injector in the Discovery 3 L319 reduces the risk of starting problems, uneven operation, or power loss. In practice, this means:

• better control over the fuel dose across the full load range,
• more predictable throttle response,
• reduced load on other injection system components,
• easier diagnostics of potential faults in the future.

By choosing this component, you are opting for consistency with the factory fuel system design, which is especially important in vehicles operated in demanding off-road conditions or with high mileage.

Component condition and installation aspects

The injector comes from dismantling and is offered as a used part, which allows for an economical repair of the fuel system while maintaining the original specification. This type of component is intended for installation in place of the factory injector, following standard service procedures for the 2.7 V6 276DT engine.

When replacing, it is recommended to:

• use new seals in accordance with the manufacturer's recommendations,
• thoroughly clean the seat in the cylinder head before installation,
• adhere to the tightening torques specified for this type of connection,
• after installation – perform adaptation or coding of the injector, if required by the specific engine control system.

Diagnostics and prevention of the injection system

In the case of Land Rover diesel engines, it is crucial to detect early signs of injector wear, such as difficulty starting when warm, increased smoke, knocking under load, or increased fuel consumption. To better understand the symptoms and consequences of neglect, it is worth reading the guide on diesel injector faults, their symptoms, and the consequences of inaction, which helps to assess when an injector replacement is justified.

Land Rover injector nozzles – expansion and system modernization

If you are planning a comprehensive repair or modernization of the fuel system area in your Land Rover and need other elements from the same group, such as additional injectors, nozzles, or components accompanying the installation, check the available parts in the Land Rover injector nozzles category.

A conscious choice of a used fuel injector is also an element of a responsible approach to vehicle operation. Using parts from dismantling fits into the idea of reusing components and reducing waste. If you want to learn more about how such decisions affect the environment and service costs, it is worth reading the article on the circular economy and the benefits of installing used parts in a car.