BMW E81 E87 E90 E91 Bracket Alternative Power Siren Alarm Holder Mount 6940124

The BMW E81 E87 E90 E91 Alarm Siren Bracket 6940124 is an original mounting component designed for factory alarm systems in selected BMW 1 and 3 Series models. This specialized bracket ensures stable, secure, and factory-compliant mounting of the alarm siren, contributing to the proper functioning of the security system and minimizing unwanted vibrations and noise. By using an OEM solution, structural consistency with the vehicle body and predictable performance of the entire alarm system are maintained.

Specifications and technical data

• SKU: 6940124
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6940124
• Substitutable numbers: 6940124, 65756940124
• Category: Other Interior Parts & Accessories

Intended Use and Compatibility with BMW Models

The alarm siren bracket is designed for BMW 1 Series E81 / E87 and 3 Series E90 / E91 platforms, where precise fitment to factory mounting points is crucial. The bracket's design is adapted to the engine bay geometry and the intended siren location, facilitating the installation and subsequent servicing of the alarm system.

Using a dedicated bracket instead of universal solutions allows for:

• correct siren positioning relative to the vehicle body,
• appropriate mounting rigidity,
• compatibility with the factory wiring harness and cable routing.

Technical Characteristics of the Alarm Siren Bracket

As an element in the Other category, the bracket plays a crucial, though often underestimated, role in the vehicle's entire security system. It is responsible for securely seating the siren in the location designated by the manufacturer, which is important for both the alarm's acoustics and protecting the siren itself from mechanical damage.

The OEM solution ensures:

• retention of factory mounting points on the vehicle body,
• adequate rigidity and resistance to vibrations generated by engine operation,
• correct outward direction of the siren's sound.

Item Condition and Service Application

The offered bracket is a used part from a dismantled vehicle, making it an attractive cost-effective alternative to new OEM components. Such mounting elements are particularly useful for:

• post-accident repairs in the engine bay area,
• restoring the factory alarm system after previous modifications,
• replacing missing brackets after unprofessional repairs.

Choosing an original bracket helps avoid fitment issues typical of universal aftermarket parts and reduces the risk of siren malfunction in the long term.

Benefits of Using an Original BMW Bracket

The use of an original BMW alarm siren bracket in E81, E87, E90, and E91 models translates into a range of practical service and user benefits:

• easier installation due to factory fitment to the vehicle body,
• preservation of the manufacturer's designed alarm acoustics,
• reduced stress on the siren from vibrations and shocks,
• neat cable routing without makeshift solutions.

For workshops and services specializing in the BMW brand, this component is valuable for comprehensive security system repairs and restoring vehicles to a near-factory condition.

Other Products and Technical Materials

If you are also looking for other elements in the Other category dedicated to this brand, check out our offer for other BMW accessories and mounting components, which will allow you to comprehensively replace missing parts in your car.

To compare solutions used in different brands and sports segments, it is worth familiarizing yourself with the technical material Audi RS vs. Other Models – What Lies Under the Hood and Chassis?, which discusses structural differences in powertrains, brakes, and chassis, and their impact on the selection of replacement parts.