BMW 1 F20 F21 Left N/S Roof Moulding Gutter Rail Trim Liquid Blue Metallic B40

BMW 1 F20 F21 Left N/S Roof Moulding Gutter Rail Trim Liquid Blue Metallic B40 is an original body component designed for precise installation on the left side of the roof. Thanks to its factory-molded profile and compatibility with the body line, it ensures an aesthetic finish to the roof edge and a consistent look with the rest of the body panels. This used OEM part allows you to maintain the vehicle's original character when replacing a damaged or missing trim.

Specifications and technical data

• SKU: 7319535-LBL
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7319535
• Substitutable numbers: 51137319535, 7319535, 7292295, EM
• Location on the vehicle: Left
• Color: Liquid Blue Metallic - B40
• Category: Other Exterior Parts & Accessories

Purpose and fitment for BMW 1 Series F20/F21

The presented roof gutter trim has been designed specifically for BMW 1 Series F20/F21 models, intended for installation on the left side of the vehicle. The proper profiling for the roof line and factory mounting points allow for correct seating of the component in place of the original trim, without the need for body modifications. This solution is particularly useful for post-accident repairs, correcting point damage, or restoring the completeness of the bodywork.

Liquid Blue Metallic B40 color and aesthetic value

The trim is finished in Liquid Blue Metallic B40, characteristic of selected BMW 1 Series configurations. The use of original metallic paint allows for visual consistency with other body elements in the same shade, which reduces the need for additional painting if the vehicle color is matched correctly. The metallic coating emphasizes the roof line and harmoniously blends with the side windows and pillars, improving the overall appearance of the car.

Technical function of the roof gutter trim

The roof gutter trim serves not only an aesthetic role but also a practical one. It is responsible for:

• covering the roof edge and gutter from external factors,
• managing the flow of rainwater along the roof line,
• protecting sensitive sheet metal edges from dirt and minor mechanical damage,
• completing the stylistic line of the body in the upper part of the vehicle.

Thanks to the preservation of the original geometry of the element, proper adhesion to the roof and adjacent panels is possible, which is important for both appearance and the durability of the connections.

Characteristics of the used component

As an original, used BMW roof trim, this component is a good solution for users who want to maintain the factory specification of the vehicle while optimizing repair costs. A used OEM component usually features better fitment than non-original replacements, which translates into proper alignment with the roof and adjacent body elements. Before installation, it is recommended to perform a standard verification of the surface condition and mounting points to ensure a durable and stable seating of the trim.

Support with selection and knowledge expansion

If you are planning a comprehensive repair or upgrade of the roof area in your BMW and need other elements from the same group, such as gutter trims for the opposite side, roof edge masking covers, or additional trim pieces adjacent to the rails, check out the available parts in the Other BMW category.

For a comparison of design solutions used in different brands and sports versions, it is worth reading an article describing the differences in the construction of power units and chassis – they are discussed in detail in the entry Audi RS vs other models – what is hidden under the hood and chassis?, which allows for a better understanding of how manufacturers approach the design of key car components.