BMW 6 Series E64 E64N LCI Left N/S Outer Weatherstrip Strip Trim Cover 7905425

BMW 6 Series E64 E64N LCI Left N/S Outer Weatherstrip Strip Trim Cover is an original body component designed for installation on the left side of the 6 Series convertible. It ensures a tight seal between the window and the door trim, improving protection against water, noise, and wind gusts. Thanks to its factory fitment, it is a practical solution for repairs and renovations of the side body area.

Specifications and technical data

• SKU: 7905425
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7905425
• Substitutable numbers: 51377905425, 7905425
• Location on the vehicle: Left
• Category: Other Exterior Parts & Accessories

Purpose and function of the component

The presented left outer weatherstrip is dedicated to BMW 6 Series models in the E64 and E64N LCI (facelift) versions. The component is mounted on the left side of the vehicle and is responsible for:

• sealing the contact point between the side window and the door panel or frame,
• limiting the ingress of water and contaminants into the interior,
• reducing wind noise at higher speeds,
• providing an aesthetic finish to the upper door edge.

Thanks to a design consistent with BMW factory standards, the strip maintains proper geometry and rigidity, which translates into stable window operation and uniform pressure along its entire length.

Benefits of using an original BMW strip

Using an original body component in a BMW 6 Series helps maintain the vehicle's structural and visual consistency. Factory fitment minimizes the risk of leaks, rattles, or looseness that often appear with aftermarket parts of imprecise dimensions.

Key advantages include:

• maintaining the correct body line on the driver's or left passenger side,
• compatibility with original mounts and window guides,
• consistent appearance with other convertible trim elements,
• suitability for post-accident repairs or replacing worn-out seals.

Condition and service application

The component is sourced from dismantling and is intended for reinstallation in a vehicle where the left outer weatherstrip needs replacement. It is suitable for both local door repairs and broader side body renovations, where restoring proper sealing and acoustic comfort is essential.

By maintaining the original BMW specification, the strip can be used as a replacement for a worn or damaged part without the need to modify the door structure or window guides.

Integration with other BMW body components

Replacing the weatherstrip on the left side often goes hand-in-hand with work on the side window, lifting mechanisms, or door trim. If you are planning a comprehensive repair or upgrade of the side body area in your BMW and need other parts from the same group, such as seals, trim strips, or edge covers, check out the available parts in the Other BMW category.

Technical support and parts knowledge

Selecting the right body components is important not only for BMW cars but also for other premium brands. If you are interested in how manufacturers differentiate the design of engines, brakes, and chassis in sports variants compared to standard versions, it is worth checking out the article on our blog: Audi RS vs other models – what is hidden under the hood and chassis?. This will allow you to better understand the design philosophy in high-performance cars and plan future modifications or repairs consciously.

For those interested in using dismantled parts in the context of conscious vehicle operation and reducing environmental impact, the following article may also be useful: Eco-tuning in practice: how to increase performance while reducing your carbon footprint with recycled parts, which shows how to reasonably combine technical aspects with economic and ecological ones.