BMW X5 E53 Aluminium Side Steps Foot Plates Left Right N/O/S 8403077 8403078

BMW X5 E53 Aluminium Side Steps Foot Plates Left Right N/O/S is an original body component designed for installation on both sides of the vehicle, specifically tailored for M-PACKAGE styled versions. The aluminium construction of the side steps enhances the aesthetics of the side profile while providing a solid footing for entering and exiting the vehicle.

Specifications and technical data

• SKU: 8403078-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8403078
• Substitutable numbers: 51718403077, 8403077, 51710392735, 0392735, 51718403078, 8403078, 51710392736, 0392736, BG
• Location on the vehicle: Right, Left
• Category: Other Exterior Parts & Accessories

Purpose and function in the BMW X5 E53

The offered side step is dedicated to the BMW X5 E53 model and serves as a component of the side body area, responsible for protecting the lower edge of the bodywork and ensuring convenient vehicle usage. The use of the M-PACKAGE version emphasizes the dynamic character of the car, giving it a more sporty look consistent with BMW's design language.

The placement on the vehicle covers both the right and left sides, allowing for a visually and technically consistent finish for both sides of the car. This makes it possible to replace a single component or perform a symmetrical upgrade of the entire side step area.

Construction and properties of the aluminium side step

The aluminium M-PACKAGE side step is characterized by a rigid yet relatively lightweight construction, which helps maintain proper side body stiffness without adding unnecessary weight to the vehicle. The material provides good resistance to typical operational loads, such as foot pressure when entering or minor impacts from stones and road debris.

The characteristic M-PACKAGE style finish gives the vehicle a more aggressive, sporty line that blends well with aerodynamic packages and larger wheels. This solution is a popular choice for both post-accident repairs and gradual visual upgrades of the car.

Condition, fitment, and installation

The item is offered as a used part, which allows for an economical repair or upgrade of the vehicle while maintaining the original BMW character. A used OEM component typically features better fitment to the body than many aftermarket replacements, which translates into proper alignment with moldings, wheel arches, and other side body components.

The side step has been designed for the factory mounting points in the BMW X5 E53, which facilitates installation in a workshop environment. With proper body preparation, it is possible to achieve an aesthetic side line without the need for additional structural modifications.

Application in M-PACKAGE upgrades

Replacing side steps with the M-PACKAGE version is a popular step in visually modernizing the BMW X5 E53. It allows for a consistent connection with other package elements, such as bumpers or covers, creating a cohesive, sporty character for the vehicle. The aluminium construction helps maintain the right proportions between appearance and functionality, especially in cars used on a daily basis.

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

Technical support and knowledge about sports versions

When planning a stylistic upgrade towards sports versions, it is worth knowing the structural differences between standard variants and high-performance lines. Well-chosen body elements, such as M-PACKAGE side steps, should harmonize with the character of the entire car, including the suspension and braking systems.

To better understand the design philosophy of dynamic premium models and the differences in chassis and drivetrain construction, you can use our guide material: Audi RS vs other models – what is hidden under the hood and chassis?. This will allow you to consciously plan the next stages of your car's modifications, also in the context of selecting appropriate body parts.