Mercedes W164 Trailer Coupling Lever Hitch A1643100473

Mercedes W164 Trailer Coupling Lever Hitch is an original towing system component designed for precise control of the hitch mechanism. The part comes from the Mercedes product range, which ensures factory-fit compatibility with the vehicle's structure and consistency with other towing system components. This is a practical solution for users who want to restore the full functionality of the trailer hitch in their premium SUV.

Specifications and technical data

• SKU: A1643100473
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1643100473
• Substitutable numbers: A1643100473, A 164 310 04 73
• Category: Hitch Extenders & Adapters

Purpose and function of the component

The presented trailer coupling lever is responsible for the mechanical control of the trailer hitch lock and release in Mercedes W164 class models. A properly functioning mechanism is crucial for safely coupling a trailer to the vehicle, as well as for stably maintaining the hitch in its working or stowed position.

As an element from the Drawbar extensions and adapters group, the part works with other towing system components, ensuring proper force transmission and repeatable mechanism operation in daily use.

Benefits of using an original Mercedes part

Using an original component from the vehicle manufacturer allows you to maintain the factory operating parameters of the towing system. The most important advantages include:

• Precise geometric fit to the hitch beam and locking mechanism, which reduces operating play.
• Material consistency with other system elements, promoting predictable behavior under load.
• Compatibility with the standard body structure and factory mounting points.

Thanks to this, the lever can be used both for standard replacement of a worn-out element and for completing a used towing kit based on OEM parts.

Part condition and practical application

The element is offered in used condition, which allows for an economical repair of the towing system while maintaining original build quality. This type of component is particularly useful when:

• the existing lever has suffered mechanical damage or operational wear,
• it is necessary to restore the completeness of the factory trailer hitch,
• the priority is to maintain the original vehicle design without using universal replacements.

Before installation, it is recommended to perform a standard verification of the mechanism for smooth operation and correct interaction with other hitch elements.

Selection and integration with the towing system

To properly select the lever for a specific vehicle configuration, it is worth using the OEM part number and interchangeable numbers visible in the technical specification. This facilitates confirmation of compatibility with a given body version and the type of hitch used.

If you are planning a wider modernization of the towing system or are looking for other elements from this group, you can use related products in the Drawbar extensions and adapters{data-id=1079} category to build a complete, consistent set.

Technical support and additional knowledge

When selecting used chassis and towing system elements, it is worth paying attention to their construction, load transfer method, and impact on driving comfort. An extended discussion on structural differences and practical aspects of using used components can be found in the article on comparing standard and sports suspension and selecting used parts, which helps in consciously planning repairs and modernizations in premium vehicles.

Additionally, you can use the guide materials in the blog section, including the entry dedicated to the selection and operation of chassis and towing system elements, to better plan service work and avoid unnecessary costs.