Trunk Spare Wheel Mercedes W164 W251 X166 Mount Holder Carrier Bolt A2518980114

Trunk Spare Wheel Mercedes W164 W251 X166 Mount Holder Carrier Bolt is a practical, factory-fitted trunk mounting component designed for the secure attachment of a spare wheel in the luggage compartment. This original mount and fastening bolt ensure stable wheel seating, reduce unwanted vibrations and noise, and help keep the trunk organized. Thanks to the use of a solution consistent with Mercedes design, the component works with factory mounting points and maintains the correct installation geometry.

Specifications and technical data

• SKU: A2518980114
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2518980114
• Substitutable numbers: A2518980114, A 251 898 01 14
• Category: Spare Tyre Carriers & Covers

Purpose and function in the vehicle

The presented trunk mount is designed as a carrier and fastening bolt for the spare wheel in Mercedes SUV and VAN models, such as the W164, W251, or X166. Its task is to securely press the rim against the trunk floor so that the wheel does not move while driving, even during dynamic maneuvers and when the vehicle is fully loaded. The component's design is matched to the factory mounting socket, which allows for quick wheel removal in the event of a tire failure.

Construction and technical features of the mount

The spare wheel mount consists of a load-bearing mounting element and a bolt/pin that passes through the center hole of the rim and presses the wheel against the trunk floor. This type of solution provides:

• stable spare wheel mounting on the vehicle's axis,
• reduction of play and rattling in the luggage compartment,
• easy access to the wheel in an emergency,
• compatibility with the factory Mercedes mounting system.

Thanks to the use of original geometry, the mount works with the factory trunk floor and the spare wheel location provided by the manufacturer, which facilitates installation and subsequent handling.

Benefits of using an original Mercedes mount

Choosing an original Mercedes spare wheel mount allows you to maintain compliance with the vehicle manufacturer's design. Proper fitment to the trunk floor and mounting points minimizes the risk of incorrect installation, which could result in noise, damage to the upholstery, or body components. The used OEM component is also a cost-effective solution while maintaining proper build quality and compatibility with the bodywork.

This type of mount is particularly important in vehicles operated on long routes, with a fully loaded trunk, or off-road, where uncontrolled movement of the spare wheel could negatively affect driving comfort and the safety of the transported cargo.

Condition, fitment, and service application

The item is offered in a used condition, which in practice means it may show signs of wear but retains the functionality required for proper spare wheel mounting. Before installation, a standard visual inspection and verification of the thread and contact surfaces are recommended. Replacing a damaged or missing mount with an original equivalent restores proper spare wheel security and eliminates the need for makeshift mounting solutions.

In service applications, the mount will work well both as a replacement part after a collision or interference in the trunk, and when completing missing equipment after purchasing a vehicle on the secondary market. Thanks to the preservation of the factory mounting concept, installation does not require structural modifications or additional adapters.

Integration with the drivetrain and operation

A properly secured spare wheel is important not only for trunk ergonomics but also for trouble-free operation of the running gear and drivetrain in emergency situations. Stable wheel storage facilitates quick tire replacement, which is especially important in all-wheel-drive vehicles, where the choice of tire diameter and type affects the operation of gears and clutches. In the context of comprehensive drivetrain maintenance, it is worth checking out the guide on diagnostics and selection of clutch components and dual-mass flywheels: Clutch and dual-mass flywheel – diagnostics and selection of drivetrain parts.

Expanding equipment within the same group

If you are planning a comprehensive repair or upgrade of the luggage area in your Mercedes and need other components from the same group, such as additional holders, mounts, or wheel covers, check the available parts in the category Mercedes spare wheel holders and covers.