Land Rover Discovery 4 L319 Rear Door Quarter Fixed Glass AS2 Left N/S LR044521

Land Rover Discovery 4 L319 Rear Door Quarter Fixed Glass AS2 Left N/S is an original body component from the Car windows category, designed for installation on the left rear side of the vehicle. The fixed quarter glass ensures stable body geometry, proper interior illumination, and correct visibility in the rear pillar zone, which is important for both driving comfort and safety. This used OEM component is a sensible choice for post-accident repairs, bodywork adjustments, and restoring the factory look of a Discovery 4.

Specifications and technical data

• SKU: LR044521
• Mark: Land Rover
• Condition: Used
• OEM Part Number: LR044521
• Substitutable numbers: LR044521, 5H2229751AC, 5H22-29751-AC
• Location on the vehicle: Rear, Left
• Part type: Rear Quarter Window
• Category: Car Glass

Purpose and body fitment

The presented fixed rear glass is designed specifically for the Land Rover Discovery 4 L319 generation model and is mounted in the rear part of the body on the left side. Its placement in the side pillar area means this component works with the roof structure, window frame, and trunk upholstery, ensuring proper sealing and body rigidity.

Thanks to its factory geometry, the glass maintains the correct side line of the vehicle, which is essential for precise fitting with seals, trim strips, and plastic elements. The appropriate shape and thickness of the glass facilitate installation in place of the original component without the need for modifications or bodywork adjustments.

Technical characteristics of AS2 glass

Glass marked with the AS2 class meets the requirements for mechanical strength and impact resistance in side applications. This type of glass is tempered, which, in the event of damage, causes it to break into small, less dangerous fragments, reducing the risk of serious injury.

The optical parameters of AS2 glass provide adequate light transmission for rear side windows while limiting excessive interior heating. The stable structure of the glass helps maintain the proper rigidity of the entire window frame, which is important when operating off-road, with the torsional loads typical for a Land Rover.

Use in repairs and restorations

The used rear quarter glass is particularly useful for:

• repairs after collisions in the rear wheel arch and pillar zone,
• replacing damaged or cracked side glass,
• restoring the factory appearance of the body after modifications,
• renovation of vehicles used off-road, where windows are exposed to mechanical damage.

Choosing an original glass from dismantling allows you to maintain visual consistency with other glazing elements, as well as maintain the proper operating parameters of the body. It is a practical solution for users who want to keep their Discovery 4 in good technical condition while optimizing repair costs.

Condition, verification, and practical aspects

The item is offered as a used part, which in practice means it comes from vehicle dismantling and may show signs of normal wear that do not affect the load-bearing or optical function of the glass. Such components are often chosen for repairs where maintaining the original manufacturer's specification at reasonable costs is key.

Before installation, it is recommended to follow the standard surface preparation procedure: cleaning the frame, checking the condition of the seals, and using appropriate adhesives or fasteners in accordance with the manufacturer's technology. A correctly installed rear quarter glass restores body tightness, eliminates unwanted wind noise, and supports the maintenance of proper acoustic comfort in the interior.

Complementary Land Rover Car windows

If you are planning a comprehensive repair or modernization of the side and rear glazing zone in your Land Rover and need other elements from the same group, such as side door windows, rear trunk windows, or additional fixed quarter glasses, check the available parts in the Land Rover Car windows category.

Support for the restoration of older vehicles

Owners of older premium segment cars often combine new and used components to keep the vehicle in good technical condition without excessive costs. In the case of models similar in age to the Discovery 4, it is worth learning about the broader context of using parts from dismantling in high-class cars – practical tips, modernization scenarios, and answers to the most frequently asked questions can be found in the article Second life of a youngtimer – how used car parts rejuvenate cars from the 1998–2012 model years.