BMW 3 E90 E91 M Sport Sill Strip Side Skirt Left N/S Black Sapphire - 475

The BMW 3 E90 E91 M Sport Sill Strip Side Skirt Left N/S Black Sapphire in Black Sapphire Metallic is an original body component designed for factory M packages. This part provides an aesthetic and functional complement to the side profile, improving the vehicle's visual consistency and aerodynamics. Thanks to its precise fitment to the BMW body, this component allows for maintaining the car's original character after repairs or upgrades.

Specifications and technical data

• SKU: 0033441-BS4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0033441
• Substitutable numbers: 51770033441, 0033441
• Weight: 150
• Location on the vehicle: Left
• Color: Black Sapphire Metallic - 475
• Category: Other Exterior Parts & Accessories

Purpose and fitment

The presented sill strip has been designed specifically for BMW 3 Series E90/E91 models with the M Sport package and is mounted on the left side of the vehicle. The construction, based on factory mounting points, facilitates installation and allows for maintaining proper body geometry, which is important for both appearance and correct airflow along the side of the car.

The item is intended for users who want to restore the original M Sport specification or replace a damaged sill with a part that meets factory BMW standards, without the need for aftermarket alternatives with uncertain fitment.

Finish and Black Sapphire Metallic color

The sill strip is finished in Black Sapphire Metallic paint, characteristic of many BMW 3 Series configurations. The metallic black blends well with both light and dark body shades, and with proper care, it emphasizes the sporty character of the M package. Using the original color facilitates integration with other body components and limits the scope of any potential paint work.

The surface of the sill has been designed to combine visual appeal with practical resistance to daily use – the sill area is particularly exposed to dirt and minor mechanical damage, which is why the proper finish is important for maintaining the vehicle's aesthetics in the long term.

Performance characteristics and installation

As an original BMW component, the M Sport sill ensures proper fitment with the body and compatibility with factory covers and mounts. This facilitates workshop work and reduces installation time compared to fitting universal solutions. The product has a specific weight, selected by the manufacturer so as not to negatively affect the vehicle's weight distribution or suspension performance.

The part is used, which in practice means a favorable cost-to-quality ratio while maintaining the original BMW specification. This is a good solution for post-accident repairs, restorations, or returning the car to a factory-like state after visual modifications.

Use in repairs and upgrades

The BMW 3 E90 E91 M Sport Sill Strip Side Skirt Left N/S Black Sapphire will work well both for local repair of a damaged side of the vehicle and for comprehensive body upgrades to the M specification. By maintaining the original side line, it improves the visual consistency of the car, which is important for subsequent resale and assessment of the vehicle by appraisers and buyers.

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, overlays, or additional strips, check the available parts in the Other BMW category.

Technical support and expert knowledge

Selecting the right body components, especially in sports versions, requires knowledge of the specifications of individual models and equipment packages. For more extensive tuning projects or when comparing solutions between different model lines, it is worth reaching for additional knowledge. When analyzing differences in the construction of sports versions, chassis, and bodywork, the article on our blog may be helpful: Audi RS vs other models – what is hidden under the hood and chassis?, which shows how manufacturers differentiate components in high-performance variants.