Mercedes W204 W205 W166 W212 C117 Wiper Arm Nut Cover Cap Set A0009984821

Mercedes W204 W205 W166 W212 C117 Wiper Arm Nut Cover Cap Set are original mounting components designed to protect and provide an aesthetic finish to the wiper arm mounts in selected Mercedes models. Thanks to their precise fit for factory sockets, they ensure stable nut seating and a consistent look for the cowl area. This is a practical solution for users who want to maintain the factory character of the wipers after repairing or replacing system components.

Specifications and technical data

• SKU: A0009984821
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0009984821
• Substitutable numbers: A0009984821, A 000 998 48 21
• Category: Additional Wiper & Washer Components

Purpose and technical function

The wiper arm nut covers in this set serve a protective and masking role around the wiper arm mounts. They protect threaded connections from dirt, moisture, and minor mechanical damage, which helps maintain the proper operation of the wiper mechanism. At the same time, they improve the visual appearance of the cowl area by concealing visible fasteners.

Compatibility with Mercedes models

The presented covers are designed for selected Mercedes models from the W204, W205, W166, W212, and C117 series. This means that their geometry, mounting method, and shape have been adapted to the factory wiper arms used in these vehicle generations. In practice, this facilitates installation and allows for consistency with other body and windshield components.

Application in the wiper system

Elements of this type are particularly useful when:

• replacing wiper arms after wear or damage,
• performing wiper mechanism repairs that require removing the arms,
• restoring visual completeness after previous service interventions. Well-fitted nut covers reduce the risk of corrosion on threaded connections and help maintain uniform pressure of the arms against the mounting cones, which indirectly contributes to the stable operation of the wipers in the long term.

Product characteristics and condition

The offered set comes from the Mercedes brand, which means compliance with factory manufacturing and fitment standards. The product is in used condition, making it a reasonable compromise between repair costs and maintaining the vehicle's original specifications. For many users, this is a practical solution that allows for maintaining the visual and technical consistency of the wiper system without the need to resort to replacements with uncertain parameters.

Support with selection and expansion of the wiper system

If you are planning a comprehensive repair or upgrade of the wiper area in your Mercedes and need other elements from the same group, such as arms, mounts, or additional covers, check out the available parts in the Other Mercedes wiper parts category. When selecting used mounting components, many drivers pay attention to preserving the vehicle's original character. In the context of maintaining brand consistency and build quality, it is worth reading an article describing how properly selected components affect the character of a premium car – more information can be found in the material Audi and emotions in their purest form – how used parts help maintain the brand's DNA. If you want to better understand why original, used mounting elements are often a beneficial choice in terms of safety and durability, the guide on the quality and safety of used OEM parts, which discusses key aspects of selecting such components, may also be helpful.