BMW 3 4 E93 F33 1 Folding Top Hardtop Roof Shell Centre Black Sapphire - 475

Visual condition of the part

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

BMW 3 4 E93 F33 1 Folding Top Hardtop Roof Shell Centre Black Sapphire is an original body component designed for 3 and 4 Series Convertible models. Thanks to its factory finish in Black Sapphire Metallic – 475, it allows for a consistent, aesthetic, and technically correct repair of the roof area. This is a solution for users who expect precise fitment and the preservation of the factory body lines.

Specifications and technical data

• SKU: 7400555-BS1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7400555
• Substitutable numbers: 41007400555, 7400555, 54377183297, 7183297, 54377251990, 7251990, BG
• Weight: 150
• Color: Black Sapphire Metallic - 475
• Category: Other Exterior Parts & Accessories

Purpose and function of the component

The central hardtop roof shell for the BMW 3 Series E93 and 4 Series F33 is responsible for the proper closing and stiffening of the roof structure. This component works in conjunction with the folding mechanism, seals, and side panels to create a tight and stable body structure for the Convertible version. Using an original shell helps maintain the correct roof geometry, which is important for both acoustic comfort and protecting the interior from weather conditions.

Color and paint finish

The component is finished in the factory color Black Sapphire Metallic – 475, characteristic of many BMW configurations. The metallic black provides an elegant, understated look and complements both light and dark interiors well. Using the original shade facilitates integration with the remaining body panels, limiting the scope of any potential paint work and helping to maintain the visual consistency of the entire vehicle.

Technical and assembly aspects

The central hardtop roof shell is a component with complex geometry, designed to work with the factory roof folding mechanism in the BMW 3 E93 and 4 F33. The properly selected structural weight supports the correct operation of the actuators and arms, and the precise mounting points allow for installation in accordance with the manufacturer's specifications. Using an original component helps avoid issues with adjustment, closing, and the operation of the entire roof system.

Condition and functional characteristics

The offered roof shell comes from the used parts segment, which allows for an economical repair while maintaining the original BMW specification. This type of solution is particularly beneficial in the event of mechanical or collision damage to the roof, where it is crucial to restore the structure according to the factory design. A used body component represents a reasonable compromise between cost and maintaining the correct assembly and visual parameters.

Benefits of using the original roof shell

• Factory fitment for the hardtop folding roof structure in the BMW 3 Series E93 and 4 Series F33.
• Original Black Sapphire Metallic – 475 color, making it easier to maintain paint consistency.
• Ability to restore the correct geometry and rigidity of the roof area.
• Economical repair solution through the use of a used part.

If you are planning a comprehensive repair or upgrade of the roof area in your BMW and need other components from the same group, such as additional roof panels, reinforcements, or mounting elements, check out the available parts in the Other BMW category.

For a comparison of structural solutions used in sports models from other brands and a better understanding of the differences in body and chassis construction, it is worth reading the article Audi RS vs other models – what is hidden under the hood and chassis?, which discusses, among other things, the manufacturers' approach to designing key vehicle systems.