Land Rover Discovery Sport L550 Engine Oil Filler Neck Tube 2.0 G4D3-6763-BA

Land Rover Discovery Sport L550 Engine Oil Filler Neck Tube 2.0 G4D3-6763-BA is an original lubrication system component designed for diesel engines, ensuring safe and convenient engine oil replenishment. Thanks to its factory geometry and fitment for the Land Rover Discovery Sport L550 engine bay, it guarantees proper oil routing during top-ups and stable mounting within the vehicle. This is a practical solution for users who prioritize proven components and want to keep their lubrication system in optimal condition.

Specifications and technical data

• SKU: LR073644-1
• Mark: Land Rover
• Condition: Used
• OEM Part Number: LR073644
• Substitutable numbers: LR073644, G4D36763BA, G4D3-6763-BA
• Fuel type: Diesel
• Category: Oil Drain Plugs, Filler Caps & Dipsticks

Purpose and function in the lubrication system

The oil filler neck tube in the Discovery Sport L550 model is responsible for precisely guiding oil from the filler cap into the engine. In diesel units, this is of particular importance because it:

• facilitates controlled oil top-ups without the risk of splashing inside the engine bay,
• limits the possibility of contaminants entering the engine unit,
• ensures a stable connection between the filler cap and the engine block.

A properly selected oil filler neck tube supports the maintenance of the correct oil level, which translates into the durability of components working within the lubrication system.

Compatibility with the 2.0 Diesel engine

The presented component is designed for 2.0-liter diesel engines used in the Land Rover Discovery Sport L550. This means that the tube's geometry, mounting points, and pipe diameter are adapted to the factory configuration of the diesel power unit, which allows for:

• maintaining the original oil filler routing in the engine bay,
• hassle-free installation in place of the factory component,
• compatibility with the original filler cap and engine accessories.

As a result, replacing a damaged or leaking tube with this component allows for restoring proper engine serviceability without the need to modify other sub-assemblies.

Technical category: Oil drain and filler plugs and dipsticks

The oil filler neck tube belongs to the group of elements labeled as Oil drain and filler plugs and dipsticks, which are components responsible for the service maintenance of the lubrication system. In practice, this means it works in conjunction with the filler cap and the dipstick, creating a cohesive system that enables:

• regular engine oil replenishment,
• oil level monitoring using the dipstick,
• maintaining tightness in the upper part of the lubrication system.

Selecting elements from the same design group helps maintain the consistency of factory solutions and facilitates future vehicle service.

Characteristics of the used component

The offered oil filler neck tube is a used part, which in the case of original Land Rover components often allows for a favorable compromise between price and build quality. Such a component, when used correctly, retains its functional properties for a long time, and it is crucial to:

• check the condition of mounts and ports for any cracks,
• verify the patency of the filler pipe,
• inspect the surfaces that interface with seals.

A well-selected, original oil filler neck tube allows for restoring proper engine service conditions without having to resort to replacements with uncertain geometry.

Technical support and additional materials

When working on the lubrication system and the general condition of the power unit, it is worth paying attention to the state of the entire engine, especially in the case of high-mileage or modified vehicles. A practical guide on purchasing power units may be helpful – you can find it in the article How to buy a used car engine and avoid a lemon – a step-by-step guide, which discusses, among other things, assessing wear and typical pitfalls when choosing used components.

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 oil drain plugs, filler caps, or dipsticks, check out the available parts in the category Land Rover oil drain and filler plugs and dipsticks.

For a better understanding of the impact of proper service maintenance on the durability of the power unit, it is also worth reading the blog article Engine cooling system – overheating, repair, and used radiators, which describes the relationship between engine operating temperature and component longevity, including elements that work with the lubrication system.