Wiper Arm BMW E81 E87 E84 Rear Window Tailgate Trunk Boot Lid 9449913

Visual condition of the part 

The product shows signs of use visible in the photos. 

Wiper Arm BMW E81 E87 E84 Rear Window Tailgate Trunk Boot Lid is an original component from the Wiper arms group, designed for installation on the rear window of selected BMW 1 Series and X1 models. This used OEM part ensures factory-fit, robust construction, and proper cooperation with the wiper mechanism, which translates into safe visibility in difficult weather conditions.

Specifications and technical data

• SKU: 9449913-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9449913
• Substitutable numbers: 9449913, 61629449913
• Location on the vehicle: Rear
• Category: Wiper Arms

Purpose and function of the wiper arm

The presented wiper arm is designed for operation on the rear window, where it is responsible for stable guidance of the wiper blade and even pressure on the glass surface. Thanks to a design consistent with factory BMW standards, the component maintains proper geometry, which reduces vibration, noise, and uneven wiping.

The arm works with the original mount and drive mechanism, which facilitates installation and minimizes the risk of operational problems. This is a practical solution when replacing a worn or damaged arm, especially when you want to maintain the factory operating characteristics of the wiper system.

Benefits of using an original BMW arm

Using an original wiper arm in a BMW E81, E87, or E84 allows you to maintain the technical consistency of the vehicle. The component has been developed for the specific geometry of the rear window and the operating range of the mechanism, which translates into:

• stable blade pressure against the glass throughout the full range of motion,
• proper drainage of water and debris from the rear window,
• reduction of the "skipping" effect of the wiper on the glass,
• proper cooperation with the original drive and mount.

Thanks to the preservation of factory mounting parameters, the arm does not require modifications or adaptations, which is important both from the point of view of durability and vehicle safety.

Mounting and operational characteristics

The rear wiper arm for the BMW 1 Series and X1 has been prepared for direct replacement of a worn component. The construction intended for mounting on the rear part of the body provides:

• compatibility with the factory mount on the wiper mechanism axis,
• appropriate arm rigidity while maintaining the required flexibility,
• proper guidance of the blade along an arc matched to the shape of the window.

Such a solution allows for restoring the correct operation of the rear wiper after mechanical damage to the arm (e.g., bending, cracking, or excessive corrosion) without interfering with other system components.

Application in the vehicle visibility system

A functional rear wiper arm is important for driving safety in rain and snow, especially when maneuvering and reversing. In combination with a properly selected blade, it ensures a clear view in the rearview mirror, which facilitates assessing the situation behind the vehicle. Replacing a worn arm with an original BMW component allows you to maintain the quality of the visibility system as intended by the manufacturer.

If you are planning a comprehensive repair or upgrade of the area responsible for cleaning windows in your BMW and need other components from the same group, such as additional arms, mounts, or elements cooperating with blades, check the available parts in the BMW wiper arms category.

For drivers interested in a broader approach to the topic of used components and optimizing operating costs, useful information on selecting parts and their impact on daily driving can be found in the article Used car parts for Mini Cooper – a way for style and savings.