BMW F30 F31 Sill Strip Side Skirt Left N/S Black Sapphire Metallic - 475

Visual condition of the part

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

BMW F30 F31 Sill Strip Side Skirt Left N/S Black Sapphire Metallic - 475 is an original body component designed for installation on the left side of the vehicle, finished in an elegant Black Sapphire Metallic color. Thanks to its factory-spec fitment, it ensures a cohesive look for the sill area and maintains the correct side body line. It is a practical solution for users who want to restore the factory aesthetics and functionality of the sill in their BMW in an orderly manner.

Specifications and technical data

• SKU: 7312751-BS
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7312751
• Substitutable numbers: 51777312751, 7312751
• Location on the vehicle: Left
• Color: Black Sapphire Metallic - 475
• Category: Splash Guards & Mud Flaps

Purpose and function of the component

The left side sill cover plays an important protective and aesthetic role in the lower part of the bodywork. It protects the sill edge against typical operational damage, such as minor impacts, dirt, or abrasion during entry and exit. At the same time, it allows for maintaining the consistent, factory look of the side bodywork characteristic of the F30 series.

This component is particularly useful for accident repairs, visual corrections after corrosion, or restoring the car to its original specification after previous non-original modifications.

Color and visual fitment

The finish in Black Sapphire Metallic - 475 allows for a harmonious match with body paint in the same color. The metallic structure of the paint ensures consistency in light reflection with other body panels, which is crucial for precise body and paint repairs.

Thanks to the factory surface finish, the cover integrates well with the line of the doors, fenders, and other side elements, minimizing the need for additional aesthetic adjustments after installation.

Installation and integration with the bodywork

The cover has been designed as a component dedicated to a specific area of the vehicle, which facilitates correct positioning relative to the sill and other side panels. The appropriate shaping of the edges allows for stable seating of the part and the maintenance of proper assembly gaps.

During installation, it is recommended to:

• thoroughly clean and degrease the sill surface,
• verify the body line before final pressing of the component,
• check the fitment with the doors and adjacent panels after completing the work.

This working method allows for an aesthetic final result and limits the risk of subsequent stresses within the sill zone.

Product characteristics and practical application

As an item in the Mudflaps category, the sill cover contributes to protecting the lower part of the bodywork against dirt and minor damage resulting from daily use. It is aimed at users who expect factory fitment and predictable performance of the component over a long period of use.

The product in used condition is a reasonable choice for repairs where it is crucial to combine proper functionality, compliance with the original specification, and cost optimization compared to new body parts.

Support for body repairs

When planning body and paint repairs, it is worth considering the completeness of the sill zone so that the newly installed cover harmonizes with other side elements. It may also be helpful to familiarize yourself with good practices for selecting used body parts – a detailed discussion of this topic can be found in the article Bodywork and exterior – accident repairs using dismantled parts, which describes, among other things, the principles of working with OEM components and example repair procedures.

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