Headlight Mount BMW E90 E91 LCI Left N/S Headlight Arm Bracket Holder 7138401

Visual condition of the part

The product shows signs of use visible in the photos.

Headlight Mount BMW E90 E91 LCI Left N/S Headlight Arm Bracket Holder is a precision mounting component from the Front lights group, designed for stable positioning of the headlight on the left side of the vehicle body. A properly selected mount ensures correct headlight alignment, which translates into safe and compliant road illumination.

Specifications and technical data

• SKU: 7138401-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7138401
• Substitutable numbers: 51647138401, 7138401, BG
• Location on the vehicle: Left
• Category: Headlight Assemblies

Purpose and function of the component

The left-side headlight mount slide is responsible for stable guidance and support of the headlight within the front-end structure. A properly selected component eliminates unwanted play, reduces vibrations, and helps maintain the correct geometry of the low and high beam settings.

In a vehicle where the mount has been damaged (e.g., after a collision or headlight replacement), using a dedicated slide allows for the restoration of factory mounting points without the need for interference with the body structure. This solution is particularly important for precisely tuned lighting systems, where accurate positioning of the lamp relative to the bodywork is essential.

BMW compatibility and mounting fitment

The presented slide has been designed for BMW E90 and E91 series models, meaning its geometry, mounting points, and shape are adapted to the factory design solutions of these bodies. This allows for seamless fitment to the original headlight and adjacent components, without the need for modifications or the use of additional adapters.

The placement on the left side of the vehicle allows for unambiguous identification of the mounting position, which facilitates part selection during post-accident repairs or when replacing damaged lighting system components. Using a dedicated slide reduces the risk of improper alignment with the fender, bumper, and hood, thereby minimizing problems with headlight adjustment.

Product characteristics and condition

The headlight mount slide belongs to the group of structural lighting system components that bear loads resulting from suspension operation, body vibrations, and temperature changes. Using an original BMW solution promotes the maintenance of structural integrity of the vehicle's front section and proper cooperation with other headlight components.

The offered item is in used condition, meaning it comes from disassembly but still fulfills its mounting function. It is a practical choice for repairs where maintaining the original mounting geometry is important while simultaneously optimizing service costs.

Benefits of using a dedicated headlight slide

• Restoration of the correct position of the left-side headlight.
• Reduction of vibrations and play affecting the stability of the light beam.
• Better alignment of the lamp with bodywork elements in the front-end zone.
• Preservation of the factory mounting concept provided by the manufacturer, BMW.

Using the correct headlight mount slide is particularly important in vehicles equipped with advanced headlights, where even small deviations in position can affect lighting efficiency and night driving comfort.

Expanding the lighting system in BMW

If you are planning a comprehensive repair or upgrade of the front lighting zone in your BMW and need other components from the same group, such as headlight housings, adjustment brackets, or additional supports, check the available parts in the BMW Front lights category.

Technical support and knowledge about modifications

When planning more advanced lighting or drivetrain upgrades, it is worth using reliable sources of knowledge. If you are interested in issues related to safe power increases and the selection of used components, the article describing practical aspects of purchasing turbochargers and planning modifications may be helpful – check the material: 2.5 TFSI DAZA – how to safely increase the power of an Audi RS3 by buying used turbochargers.