BMW X3 E83 LCI M Sport Rear Bumper Trim Panel Cover Diffuser 3417730

Visual condition of the part

The product shows signs of use visible in the photos.

BMW X3 E83 LCI M Sport Rear Bumper Trim Panel Cover Diffuser is an original body component from the Bumpers and reinforcements category, designed for installation in the rear section of the vehicle. Engineered for the M Sport version, it ensures a consistent look with the factory styling package and a precise fit to the body lines of the BMW X3 E83 LCI.

Specifications and technical data

• SKU: 3417730
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3417730
• Substitutable numbers: 3417730, 51123417730
• Location on the vehicle: Rear
• Category: Bumpers & Reinforcements

Purpose and fitment for BMW X3 E83 LCI M Sport

The presented rear diffuser panel has been developed specifically for the BMW X3 E83 generation post-facelift (LCI) in the M Sport trim. Its placement in the rear bumper area allows for maintaining the factory body geometry, proper airflow management under the vehicle, and an aesthetic finish for the lower part of the bumper.

As an original BMW component, the diffuser ensures a proper fit with other M Sport package parts, without the need for modifications or adjustments to the mounting points. This solution is particularly beneficial for accident repairs, replacing a damaged bumper, or restoring the vehicle to its factory configuration.

Technical function of the rear diffuser

The rear bumper diffuser in the BMW X3 E83 LCI M Sport performs several important structural and functional roles:

• covers the lower part of the rear bumper and the components located behind it,
• visually and technically stabilizes the lower edge of the bumper, improving the rigidity of the entire module,
• organizes airflow in the rear section of the body, which promotes stability at higher speeds,
• ensures a consistent, sporty look characteristic of the M Sport package.

Thanks to its design tailored to the specific model, the installation of the diffuser does not require interference with the bumper structure or additional modifications, which reduces the time and complexity of service work.

Characteristics of the used component

The offered diffuser is a used part, which in practice means it comes from disassembly and may show signs of wear typical for this class of parts. This type of component is a good choice for repairs where maintaining the original BMW specification while optimizing costs is key.

A used element from the Bumpers and reinforcements group allows for maintaining factory material quality and construction, while simultaneously serving as an economical alternative to a new diffuser. This solution is particularly attractive for comprehensive body repairs, where both technical compliance and budget control are important.

Benefits of using an original BMW diffuser

Using an original BMW X3 E83 LCI M Sport rear diffuser provides a number of practical benefits:

• Factory fitment – maintaining the correct body lines, gaps, and mounting points in accordance with the manufacturer's design.
• Visual consistency with the M Sport package – the element perfectly fits the sporty styling of the rear of the car.
• Stable construction – proper support and stiffening of the lower bumper zone, which reduces the risk of vibrations and looseness.
• Easier service work – installation consistent with factory solutions, without the need to adapt universal replacements.

Expanding the repair of the BMW rear body zone

If you are planning a comprehensive repair or upgrade of the rear bumper zone in your BMW and need other elements from the same group, such as reinforcements, beams, or additional covers, check the available parts in the BMW Bumpers and reinforcements category.

When selecting body components, it is also worth paying attention to the general rules for the safe purchase of used parts – the guide material describing the component verification process may be helpful, which you can find in the article Second-hand braking system: how to safely choose discs, calipers, and ABS?, where practical tips regarding the assessment of the condition of parts from disassembly are presented.