BMW F34 GT Seal Outer Left Mirror Triangle N/S 7289975

BMW F34 GT Seal Outer Left Mirror Triangle is a precision body component from the Door seals group, designed for installation on the left side of the vehicle. It is responsible for a tight connection between the mirror and the bodywork, reducing wind noise and protecting against the ingress of water and contaminants. This used, original BMW part ensures proper geometric fitment to the door structure of the F34 Gran Turismo model.

Specifications and technical data

• SKU: 7289975
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7289975
• Substitutable numbers: 7289975, 51337289975
• Location on the vehicle: Left
• Category: Door Seals

Purpose and function of the mirror seal

The described outer mirror seal, in the form of a triangular element mounted on the front left side, is responsible for properly sealing the contact point between the mirror and the door. Its tasks include:

• limiting water ingress into the door interior and around the mirror mounting area,
• reducing wind noise in the pillar and mirror area at higher speeds,
• stabilizing the mirror edge relative to the door panel,
• protection against dust and fine debris in a critical area of the bodywork.

By maintaining proper sealing in this area, the acoustic comfort of the cabin is improved, as well as the durability of the mirror mechanism and components inside the door.

Fitment for BMW F34 GT

The seal has been designed specifically for the door structure of the BMW F34 Gran Turismo series, taking into account the characteristic geometry of the pillar and mirror base. Proper edge profiling and factory mounting points allow for installation in place of the original part without the need for modifications. Placement on the vehicle on the left side eliminates the risk of error when selecting parts for the driver's or passenger's side.

Characteristics of the used component

As a used part, the seal comes from vehicle dismantling and retains the manufacturer's factory specifications. Such body components are often chosen for post-accident repairs or when replacing worn seals because they provide:

• dimensional compatibility with the original mirror mount,
• consistent appearance with other door elements,
• a favorable cost-to-quality ratio compared to aftermarket replacements.

A properly selected used seal helps restore correct sealing and aesthetics in the mirror zone without interfering with the door structure.

Application in body and door repairs

Replacement of the outer mirror seal is recommended especially after:

• damage to the mirror or door as a result of a collision,
• mirror removal during body and paint repairs,
• detection of leaks, wind noise, or visible rubber cracks.

Selecting an original seal from the Door seals group allows you to maintain the factory level of tightness and reduce the risk of corrosion around the mirror mount. When planning broader bodywork with used parts, it is worth using practical tips – you will find them in the article Bodywork and exterior – post-accident repairs using dismantled parts, which discusses the selection of used OEM components and typical service procedures.

Complementary BMW Door seals

If you are planning a comprehensive repair or upgrade of the door area in your BMW and need other elements from the same group, such as perimeter seals, pillar seals, or additional edge seals, check out the available parts in the BMW Door seals category.

Summary

BMW F34 GT Seal Outer Left Mirror Triangle is an original body component designed for installation on the left side, which restores proper sealing and aesthetics in the mirror area. The use of a factory seal from the Door seals group supports acoustic comfort, protects against moisture, and facilitates professional execution of door and mirror repairs in the BMW F34 Gran Turismo model.