Range Rover L405 Active Anti Roll Bar Tank Reservoir Cap F23C-3F781-B4

Range Rover L405 Active Anti Roll Bar Tank Reservoir Cap is an original component from the Protective and decorative strips group, designed for use in the anti-roll bar system of the Range Rover L405 model. This practical solution ensures the reservoir remains sealed and properly secured, which translates into stable operation of the entire assembly.

Specifications and technical data

• SKU: F23C-3F781-B4-1
• Mark: Land Rover
• Condition: Used
• OEM Part Number: F23C-3F781-B4
• Substitutable numbers: F23C-3F781-B4, F23C3F781B4, RQF500010, 5H327H548BA, 5H32-7H548-BA
• Category: Body Mouldings & Trims

Purpose and technical function

The anti-roll bar reservoir cap in the Range Rover L405 is responsible for a secure, mechanical closure of the reservoir and protection of its edges against mechanical damage. As an element from the group of protective body details, it works with other components in the compartment, ensuring:

• maintaining a seal within the anti-roll bar reservoir,
• protection against external contaminants,
• stable seating on factory mounts. Thanks to its factory origin, the cap is matched to the body geometry and anti-roll bar system of the Range Rover L405, which facilitates installation and reduces the risk of improper fitment.

Construction and fitment for Land Rover Range Rover L405

The discussed cap has been designed specifically for Land Rover's structural requirements, maintaining the quality standards characteristic of this brand. The properly selected shape and profile ensure:

• precise seating in the anti-roll bar reservoir socket,
• compatibility with factory clips and guides,
• consistent appearance with other protective elements in the compartment. As an original part, the cap harmonizes with other body details, which is important both from a technical and visual perspective – especially in premium class vehicles such as the Range Rover L405.

Characteristics of the used element

The presented anti-roll bar reservoir cap is a used part, sourced from dismantling. Such components are frequently chosen for servicing high-end cars because they allow for maintaining the original vehicle specification while optimizing costs. In the case of elements from the protective body details group, it is crucial that:

• the correct geometry and possibility of secure installation are maintained,
• there are no damages preventing a tight closure,
• the element is consistent with the factory design of the given model. Choosing an original, used cap allows for maintaining technical consistency with other Land Rover components, which is significant for the long-term operation of the vehicle.

Application in service and modernization

Range Rover L405 Active Anti Roll Bar Tank Reservoir Cap will prove useful both for standard replacement of a damaged element and for broader service work within the anti-roll bar system and adjacent body details. It can be used as a replacement for the factory-installed cap when:

• the original element has suffered mechanical damage,
• wear or deformation has occurred, hindering a tight closure,
• it is necessary to restore the factory condition after bodywork or mechanical repairs. Thanks to maintaining the original design, the cap does not require modifications or adaptations – after proper installation, it works with the existing vehicle structure.

Technical support and additional materials

When selecting parts from dismantling for technical systems, it is worth following proven procedures and practical knowledge. If you are interested in how to safely use used components in critical vehicle systems, check out the article: Fuel dosing problems: what to look for when buying a used injection pump and fuel rails?. Although it concerns the fuel system, it covers universal principles for assessing the condition of used parts, which are also useful for other sub-assemblies. If you are planning a comprehensive repair or modernization of the protective body elements zone in your Land Rover and need other items from the same group, such as covers, overlays, or additional strips, check the available parts in the Land Rover protective and decorative strips category.