Audi A6 C8 Q3 F3 Rear Tailgate Window Wiper Arm 4K9955407B

Audi A6 C8 Q3 F3 Rear Tailgate Window Wiper Arm is an original component from the Wiper arms group, designed for operation on the vehicle's rear window. It ensures stable guidance of the wiper blade, which translates into a clear field of vision and safe driving in difficult weather conditions. Thanks to its factory origin from the Audi range, it maintains the correct geometry and fit for the mounting on the tailgate.

Specifications and technical data

• SKU: 4K9955407B
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K9955407B
• Substitutable numbers: 4K9955407B, 4K9 955 407 B
• Location on the vehicle: Rear
• Part type: Wiper Arm
• Category: Wiper Arms

Purpose and function of the arm

The rear wiper arm in Audi models is responsible for precisely pressing the blade against the glass so that it collects water and impurities evenly along its entire length. A properly selected arm minimizes vibrations, reduces noise during wiper operation, and decreases the risk of streaking, which is particularly important when driving in the rain or after dark.

The presented arm is intended for installation in the rear part of the body, in the tailgate area. The design is optimized for operation in both horizontal and vertical positions, taking into account the characteristic shape of the rear window in Audi A6 C8 and Q3 F3 vehicles.

Benefits of using an original Audi arm

Using an original wiper arm in Audi cars allows you to maintain the factory operating parameters of the window cleaning system. Key advantages include:

• proper fit to the mounting cone and wiper motor shaft,
• appropriately selected length and operating angle relative to the glass surface,
• stable cooperation with the dedicated wiper blade,
• consistent appearance with the body line and other tailgate elements.

As a result, the driver receives predictable system performance, and the risk of improper pressure, skipping across the glass, or collision with seals is limited. This is especially important in modern bodies where the rear window has complex geometry.

Installation and performance characteristics

The rear wiper arm is a mechanical component that operates cyclically and is exposed to moisture, road salt, and variable temperatures. A properly selected component ensures:

• stable mounting on the drive shaft,
• smooth movement along the working arc without jamming,
• maintenance of appropriate pressure on the blade throughout the entire operating range.

When replacing the arm, it is worth paying attention to the correct setting of the rest position relative to the lower edge of the glass to avoid collisions with seals or body elements. Wiper arms in Audi vehicles are designed to work with the factory mechanism and motor, which facilitates installation and subsequent operation.

Condition of the item and practical application

The offered wiper arm comes from a vehicle where it was previously used, which allows for a favorable cost-to-functionality ratio. This type of component is a good choice for wiper system maintenance when the existing arm has become worn, deformed, or corroded in the blade mounting area.

Replacing the rear wiper arm is recommended, among other situations, when the blade does not adhere evenly to the glass, clear uncleaned zones appear, or there is visible play at the connection with the drive shaft. Using an original Audi component helps restore the correct operation of the system without the need to modify other sub-assemblies.

Expanding rear body area service

If you are planning a comprehensive repair or modernization of the rear window and tailgate area in your Audi and need other elements from the same group, such as additional arms, mounts, or joint covers, check the available parts in the Audi wiper arms category.

When servicing the rear part of the vehicle, it is also worth taking care of the efficiency of the engine cooling system, especially during periods of high temperatures. Practical tips on operation and the possibilities of using used sub-assemblies can be found in the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings.