BMW F30 F31 Sill Strip Side Skirt Cover Left N/S Alpinweiss Alpine White - 300

Visual condition of the part

Possible scratches and paint chips – condition as shown in the product photos.

BMW F30 F31 Sill Strip Side Skirt Cover Left N/S Alpinweiss Alpine White - 300 is an original body component from the Side skirts category, designed for installation on the left side of BMW 3 Series F30/F31 models. Finished in the factory Alpinweiss 3 - 300 color, it allows for an aesthetic and technically correct replacement of a damaged side skirt without the need for structural vehicle modifications.

Specifications and technical data

• SKU: 7312751-AW
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7312751
• Substitutable numbers: 51777312751, 7312751
• Location on the vehicle: Left
• Color: Alpinweiss 3 - 300
• Category: Running Boards & Side Bars

Purpose and fitment for BMW F30/F31

This side skirt cover has been designed specifically for the BMW 3 Series F30/F31 generation body, intended for the left side of the vehicle. Thanks to its factory profile and precise edge shaping, it ensures proper adhesion to the sill and a seamless connection with adjacent side body panels. Such fitment reduces the risk of stress, leaks, and unwanted gaps during operation.

Alpinweiss 3 color – visual consistency of the body

The side skirt is finished in Alpinweiss 3 - 300, a color used by the factory on many BMW 3 Series F30/F31 units. This facilitates maintaining visual consistency across the entire side of the vehicle, especially when replacing a single component after a collision or operational damage. Matching the shade to the rest of the bodywork helps limit the scope of additional paint work or eliminate it entirely if the condition of the coating is satisfactory.

Protective and functional role of the side skirt

The side skirt plays an important role in protecting the lower part of the body from mechanical damage and dirt. A properly selected and installed cover:

• protects the sill edge from chips, minor impacts, and scratches,
• visually stabilizes the vehicle's side line, improving aesthetic appeal,
• limits the accumulation of dirt in critical areas near the bottom of the doors,
• supports the maintenance of proper side sill aerodynamics.

As a result, replacing a damaged skirt with a functional component restores both the protective function and the original appearance of the vehicle.

Characteristics of the used component

The offered side skirt cover is a secondary market component, meaning it comes from vehicle dismantling. This type of part allows for an economical repair of the sill area while maintaining original geometry and construction. A used body component is a good solution in situations where the priority is to maintain factory fitment and reduce costs compared to new parts.

Application in body and paint repairs

Replacing a side skirt is a typical stage of repairs following side damage, parking scrapes, or local corrosion. Using an original cover in the correct color facilitates the work of a body and paint shop, shortening the time required for preparation and fitting. This can translate into more efficient repair completion and a more predictable final result in terms of fit and appearance.

If you are planning a comprehensive repair or upgrade of the sill area in your BMW and need other components from the same group, such as covers, trims, or additional strips, check the available parts in the BMW side skirts category.

For broader vehicle service work, including the drivetrain, practical tips on selecting secondary market components may be helpful – you can find them in the article Used gearbox – when is it worth it and what you need to remember, which discusses key aspects of purchasing used components.