Land Rover Discovery 4 L319 Sport L320 Brake Fluid Reservoir Tank AH22-2L454-AA

Land Rover Discovery 4 L319 Sport L320 Brake Fluid Reservoir Tank is an original brake system component from Land Rover, designed to work with the factory brake master cylinder. Thanks to its precise construction, it ensures stable fluid storage, proper venting, and safe supply to the brake circuits. This solution is dedicated to users who expect reliable performance and the preservation of factory operating parameters of the system.

Specifications and technical data

• SKU: LR015518
• Mark: Land Rover
• Condition: Used
• OEM Part Number: LR015518
• Substitutable numbers: LR015518, AH222L454AA, AH22-2L454-AA
• Part type: Brake Fluid Reservoir
• Category: Reservoirs & Caps

Purpose and function in the brake system

The described brake fluid reservoir is a component operating in the immediate vicinity of the brake master cylinder, responsible for maintaining the correct fluid level and reserve. The design intended for Discovery 4 L319 and Range Rover Sport L320 models allows for maintaining the proper operating pressure throughout the entire system, as well as clear fluid level monitoring during service. The original Land Rover solution ensures:

• stable supply to the brake circuits under varying off-road and on-road driving conditions,
• proper cooperation with fluid level sensors (if present in the specific vehicle configuration),
• a properly shaped working chamber, limiting fluid foaming during intensive braking.

Benefits of using an original Land Rover reservoir

Using an original brake fluid reservoir in the Discovery 4 L319 and Sport L320 allows for maintaining the factory characteristics of the brake system. Precise fitment of connections and the body shape facilitates installation and minimizes the risk of leaks. This is particularly important in vehicles operated with a trailer, off-road, or under full load, where the brake system works under increased stress. Key advantages include:

• compliance with the factory Land Rover brake system specification,
• secure seating on the master cylinder and body mounts,
• easier diagnostics of potential leaks thanks to predictable hose routing.

Characteristics of the used component

The presented reservoir comes from the Brake fluid reservoirs and caps category and is a used item, which in practice means it was previously operated in a vehicle. This type of part, provided it is airtight and the body is undamaged, can still effectively perform its function in the brake system. Choosing an original, used component is often a reasonable compromise between repair costs and maintaining factory-quality fitment. Before installation, a standard service procedure is recommended, including:

• checking connection sockets and ports for mechanical damage,
• verifying the condition of the cap and venting elements,
• replacing the brake fluid in accordance with the vehicle manufacturer's recommendations.

Integration with the brake system and part selection

When selecting a brake fluid reservoir for a Discovery 4 L319 or Sport L320, it is worth paying attention to compatibility with the manufacturer's markings and the configuration of the specific vehicle. The original Land Rover component has been designed to work with factory hoses, brackets, and sensors, which reduces the need for modifications during installation. Correct component selection translates into stable system operation and facilitates subsequent service maintenance. If you are planning a comprehensive repair or upgrade of the braking zone in your Land Rover and need other elements from the same group, such as additional reservoirs, caps, or mounting elements, check the available parts in the Land Rover brake fluid reservoirs and caps category.

Safety, economy, and technical knowledge

When working on the brake system, it is crucial to combine safety with reasonable service costs. A properly selected, used original component allows for cost reduction while maintaining compliance with the vehicle manufacturer's design. To better understand how to approach brake system repair using reclaimed parts, it is worth consulting expert material – you will find practical tips in the article Brake calipers under the microscope: how to reduce brake system repair costs by choosing proven reclaimed parts. If you want to organize the process of ordering used components and have them delivered directly to the workshop, a guide describing the entire operation – from selection to receipt by the mechanic – may be helpful. You will find practical information in the post how to order used car parts online directly to the workshop.