BMW 1 SERIES E87 Wing Mirror Right Driver Side O/S Seal Triangle 51337129648

BMW 1 SERIES E87 Wing Mirror Right Driver Side O/S Seal Triangle is a precision body component responsible for the tight and stable seating of the driver-side mirror. Thanks to its perfect fit for this specific 1 Series generation and its design in accordance with BMW factory specifications, this component allows for professional repair of the mirror mounting area without interfering with the door structure.

Specifications and technical data

• SKU: rhd-7129648
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 51337129648
• Substitutable numbers: 51337129648, 7129648
• Location on the vehicle: Right
• Category: Mirror Assemblies

Purpose and function of the component

The described triangle seal is part of the Wing Mirrors group and operates at the contact point between the mirror and the door panel on the right side of the vehicle. It is responsible for:

• sealing the connection between the mirror base and the door sheet metal,
• limiting the ingress of water and contaminants into the door interior,
• dampening vibrations transmitted from the body to the mirror housing,
• stable positioning of the mirror relative to the window edge and pillar.

Thanks to its proper shape and fit to the geometry of the BMW 1 Series E87 door, this element helps maintain the factory body line and ensures the correct operation of the driver-side mirror.

Compatibility and fit for BMW 1 Series E87

The seal has been designed specifically for the BMW 1 Series E87 model, which translates into secure fitment with the original mirror mount. The lack of need for modifications or forced adjustments facilitates installation both in workshop conditions and in professional body and paint shops.

The placement on the right side of the vehicle is important from the point of view of door geometry and pillar shape, which is why this element should be treated as dedicated to a specific side of the body, rather than a universal part.

Product characteristics and service application

The offered element comes from the group of original BMW solutions and is intended for re-installation as part of post-accident repairs, replacement of a damaged mirror, or restoring tightness in the door area. As a used part, it may show signs of wear typical of dismantled components, yet it retains the functionality required for further service in the vehicle.

In workshop practice, the right mirror triangle seal in the BMW 1 Series E87 is used, among other things, for:

• replacing the complete driver-side mirror,
• body repairs of the door and pillar,
• eliminating leaks and wind noise in the mirror area,
• restoring the factory appearance of the mirror mounting zone.

Benefits of using an original BMW component

Using a component sourced from BMW allows for maintaining the structural integrity of the door and the proper rigidity of the mirror mount. Compared to replacements with a universal profile, the dedicated triangle seal provides:

• better fit to the sheet metal pressings and the shape of the window frame,
• more predictable behavior under temperature changes and loads during driving,
• an aesthetic appearance of the mounting zone, consistent with the BMW 1 Series E87 body line.

For workshops and services specializing in the BMW brand, this solution facilitates maintaining a high standard of repairs and reduces the risk of complaints related to inaccurate component fitment.

Additional information and related products

If you are planning a comprehensive repair or upgrade of the side door area in your BMW and need other elements from the same group, such as housings, glass inserts, or triangular mounting panels, check the available parts in the BMW Wing Mirrors category.

When selecting used body and mirror accessories, it is worth being guided not only by model compatibility but also by manufacturer markings and technical condition. Practical tips on the safe selection of such components can be found in the Global Parts guide: Safe purchase of used car parts online – a step-by-step guide.