BMW 4 Series F32 F33 F82 F83 M4 Seal Outer Mirror Triangle Right O/S 7279778

BMW 4 Series F32 F33 F82 F83 M4 Seal Outer Mirror Triangle Right O/S is an original body component from the Window seals and trims group, designed for installation on the right side of BMW 4 Series F32/F33 models. The precisely shaped seal ensures a tight connection between the door and the mirror base, limiting the ingress of water, dirt, and noise into the vehicle interior.

Specifications and technical data

• SKU: 7279778
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7279778
• Substitutable numbers: 7023968, 51337023968
• Location on the vehicle: Right
• Category: Window Seals, Gaskets & Trims

Purpose and function of the door mirror seal

The presented seal is dedicated to the right side of the body and is responsible for the tightness of the contact point between the door and the exterior mirror mount. A properly selected element of this type:

• limits air drafts in the area of the pillar and mirror,
• minimizes water ingress into the door interior,
• reduces unwanted aerodynamic noise at higher speeds,
• stabilizes the mirror trim relative to the door panel.

Thanks to the maintenance of the factory seal geometry, the body line remains consistent, and the mirror operates within the range intended by the manufacturer, which promotes driving comfort and safety.

Original origin and fitment for BMW

The seal comes from the BMW line, which means maintaining factory dimensional and material standards. The original design solution ensures:

• a secure fit to the shape of the door and mirror base in the BMW F32/F33,
• compatibility with factory mounting points,
• a consistent appearance with other body trim elements.

The element from this group is particularly recommended for post-accident repairs, mirror replacement, or when eliminating leaks in the passenger door area.

Condition, installation, and service application

The seal is offered as a used part, which allows for economical repair while maintaining the original BMW specification. In workshop practice, such an element works well as:

• a replacement for a damaged or perished seal on the passenger side,
• a supplement to a complete exterior mirror replacement,
• a part used when eliminating leaks and noise in the door area.

Thanks to the factory profile, installation proceeds in a predictable manner for an experienced mechanic or bodywork specialist, without the need for body modifications.

Benefits of using an original door mirror seal

Using an original seal in the BMW F32/F33 brings measurable operational benefits:

• Better tightness of the door and mirror zone – limiting moisture in the door interior and upholstery.
• Higher acoustic comfort – reduction of wind noise in the area of the right mirror.
• Consistent body aesthetics – maintaining factory creases and element contact lines.
• Hassle-free installation – fitment to original BMW mounting points.

If you are planning a comprehensive repair or upgrade of the door and window frame zone in your BMW and need other elements from the same group, such as perimeter seals, window guide rails, or additional sealing profiles, check the available parts in the BMW window seals and trims category.

For drivers who are also considering repairs within the drivetrain and want to consciously choose used OEM elements, the guide article Humming differential? Find out why a used OEM drive axle is a better investment than an uncertain replacement, explaining the advantages of using original parts in key vehicle components, may be helpful.