BMW X3 SERIES E83 LCi Step Foot Board Cover Trim Left N/S 3403001

BMW X3 SERIES E83 LCi Step Foot Board Cover Trim Left N/S is an original body component designed for installation on the left side of the vehicle. It provides an aesthetic finish to the sill area and additional protection for the entry step against mechanical damage. Thanks to its factory-fit design for the BMW X3 E83, the installation is precise, and the body line remains consistent and functional.

Specifications and technical data

• SKU: 3403001
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3403001
• Substitutable numbers: 51713403001, 3403001
• Location on the vehicle: Left
• Category: Other Interior Parts & Accessories

Purpose and function of the sill trim

The left-side step foot board cover trim is a body component responsible for protecting the lower edge of the chassis in the door area. It secures the sill against scratches, minor impacts, and dirt accumulated during daily use. At the same time, it forms a visually cohesive part of the side body line, which is important both for post-accident repairs and for restoring the vehicle's factory appearance.

Thanks to a design consistent with the manufacturer's specifications, the trim maintains proper geometry and stable mounting, which reduces the risk of looseness, rattling, or leaks around the sill. This is particularly important in vehicles used intensively, where the entry area is exposed to frequent contact with footwear and road debris.

Compatibility and fit for BMW X3 E83

The component has been designed specifically for the BMW X3 E83 model, which translates into a proper fit for factory mounting points and compatibility with the side body line. Its placement on the left side of the vehicle eliminates the need for any modifications or adjustments, and the installation is based on the original sill geometry.

Such a solution is particularly beneficial for:

• repairs after mechanical damage to the lower part of the doors and sill,
• visual renovation of the bodywork after years of use,
• restoring the original look of the car after unprofessional repairs.

Proper alignment with other side body elements allows for maintaining the factory body line, which is significant both for aesthetics and for the potential future resale of the vehicle.

Characteristics of the used component

The trim comes from the secondary market, meaning it is a used part that retains its functionality and purpose in accordance with its original application. This type of component is a good choice for economical repairs, where a reasonable cost is important while maintaining compliance with the manufacturer's solutions.

Using an original, used trim allows you to:

• maintain material and structural consistency with other body elements,
• reduce the risk of fitment issues typical of aftermarket parts with universal geometry,
• preserve the correct sill line and mounting stability.

Benefits of using the original sill trim

Choosing an original step foot board cover trim for the BMW X3 E83 translates into a number of practical benefits. First and foremost, it ensures factory fitment to the bodywork, which facilitates installation and minimizes the time required to adjust the element. Additionally, compatibility with factory mounting points and other side body components is maintained.

This type of element also supports the maintenance of proper anti-corrosion protection in the sill area, as a correctly installed trim limits direct contact of the sill with external factors. This is especially important in vehicles operated in harsher road conditions, where the lower parts of the body are particularly exposed to moisture and contaminants.

Expanding your BMW sill area upgrade

If you are planning a comprehensive repair or upgrade of the sill area in your BMW and need other elements from the same group, such as covers, overlays, or additional trims, check out the available parts in the Other BMW category.

Technical support and parts knowledge

When selecting body components, including sill trims and step covers, it is worth paying attention to structural differences between specific model versions and the specifics of solutions used by different manufacturers. For a comparison of design approaches for components in the premium car segment, you can use our guide material Audi RS vs other models – what is hidden under the hood and chassis?, which shows how manufacturers differentiate the construction of key components within a single brand.