Land Rover Discovery Sport L550 Oil Filler Neck Geiter Cover 2.0 GX73-6A940-AA

Land Rover Discovery Sport L550 Rubber Oil Filler Cap Seal 2.0 GX73-6A940-AA is a precisely fitted component from the Oil Drain & Filler Plugs and Dipsticks group, designed to protect the oil filler area in 2.0 units. This used, original rubber seal ensures proper sealing around the filler neck, reducing the risk of contaminants entering the engine bay and improving service convenience.

Specifications and technical data

• SKU: LR074074
• Mark: Land Rover
• Condition: Used
• OEM Part Number: LR074074
• Substitutable numbers: LR074074, GX736A940AA, GX73-6A940-AA
• Category: Oil Drain Plugs, Filler Caps & Dipsticks

Purpose and Technical Function

The presented oil filler cap seal is specifically designed for Land Rover Discovery Sport L550 models with a 2.0 engine, where it ensures a stable and leak-proof fit for the cap and protects the surrounding area of the filler neck. This component operates in close proximity to the engine, so its proper condition is crucial for maintaining cleanliness in the engine bay and providing convenient access during oil changes.

The oil filler cap seal performs several important functions:

• stabilizes the oil filler cap in its intended working position,
• limits the ingress of dirt and moisture around the filler neck,
• minimizes the risk of accidental damage to the filler neck edges during servicing,
• aids in maintaining order in the engine's service area.

Benefits of Using an Original Oil Filler Cap Seal

Choosing an original oil filler cap seal for the Discovery Sport L550 from Land Rover ensures factory-fit accuracy and predictable material behavior under the hood. The component's design has been developed for resistance to temperature, contact with engine oil, and typical mechanical stresses during repeated cap tightening and loosening.

Key advantages of this solution include:

• secure fit to the original oil filler neck in the Discovery Sport L550,
• preservation of the factory geometry of the filler area, facilitating service operations,
• consistency with other lubrication system components in terms of manufacturing quality,
• the ability to use existing part numbers and cross-references when selecting parts by VIN.

Material and Operational Characteristics

The oil filler cap seal operates in an environment of elevated temperatures and periodic contact with oil, therefore the material used must combine flexibility with chemical resistance. This component utilizes a rubber compound selected for long-term performance in the engine bay, which translates to shape stability and reduced susceptibility to cracking under typical use.

In practice, this means:

• maintaining flexibility across a wide range of operating temperatures,
• resistance to short-term contact with engine oil and vapors,
• reduced risk of deformation affecting the filler cap's position,
• the ability for repeated removal and installation without loss of functionality.

Condition, Fitment, and Service Application

The offered oil filler cap seal is a used part, meaning it comes from a dismantled vehicle and can be an economical solution for routine repairs or restoration work on the Discovery Sport L550. This type of part is particularly useful when the original seal has become worn, hardened, or mechanically damaged, and the goal is to restore proper oil filler operation without affecting other lubrication system components.

It is always advisable to confirm the correct oil filler cap seal based on manufacturer markings or catalog data to avoid installation issues and ensure compatibility with the specific Discovery Sport engine version.

Related Lubrication System Components and Technical Knowledge

Replacing the oil filler cap seal often accompanies other work on the lubrication system, such as servicing the drain plug or checking the oil dipstick. For service consistency, it is worthwhile to inspect all components responsible for oil access and monitoring in one go.

If you are planning a comprehensive repair or upgrade of the engine area in your Land Rover and need other parts from the same group, such as drain plugs, oil filler plugs, or oil dipsticks, check the available parts in the category Land Rover Oil Drain & Filler Plugs and Dipsticks.

When working in the engine bay, it is also worth paying attention to the condition of the cooling system, as its malfunction can accelerate the degradation of rubber components in the engine compartment – you can find more practical information on this topic in the article Engine Cooling System – Overheating, Repair, and Used Radiators.