BMW Z4 E86 Side Panel Rear Left N/S Wing Fender Rubinschwarz Ruby Black - S23

Visual condition of the part

Possible scratches and paint chips – condition as shown in the product photos.

BMW Z4 E86 Side Panel Rear Left N/S Wing Fender Rubinschwarz Ruby Black is an original body component designed for the precise replacement of the factory side panel. By maintaining the factory geometry and the characteristic Rubinschwarz Ruby Black Metallic - S23 / X03 paintwork, it allows for a seamless restoration of the body lines and the aesthetics characteristic of premium BMW models.

Specifications and technical data

• SKU: 3427223-RUB
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3427223
• Substitutable numbers: 3427223, 41003427223
• Location on the vehicle: Rear, Left
• Color: Rubinschwarz Ruby Black Metallic - S23 / X03
• Category: Fenders

Purpose and fitment for BMW Z4 E86

The presented rear side panel is designed as a body component mounted on the rear left side of the vehicle, dedicated to the BMW Z4 E86 model. The construction, based on the original BMW design, ensures proper edge alignment, compatibility with the roofline, wheel arch, and bumper area, which facilitates correct fitting with adjacent body parts.

By maintaining the original form, the fender allows for the correct reproduction of factory assembly gaps, which is essential from both an aesthetic and aerodynamic point of view. This solution is particularly recommended for accident repairs, bodywork corrections, and body restorations in BMW sports cars.

Rubinschwarz Ruby Black Metallic color – characteristics

The component is finished in Rubinschwarz Ruby Black Metallic - S23 / X03 paint, characteristic of selected BMW Z4 configurations. It is a dark, metallic shade of black with a subtle ruby effect, which highlights the contours and the sporty silhouette of the body under proper lighting.

In practice, this means that with a correctly selected painting technology, the scope of additional painting can be limited to the blending zone, which shortens repair time and makes it easier to achieve a consistent visual effect with the remaining body panels.

Function and role of the rear left fender

The rear left fender in the BMW Z4 E86 performs several key structural and functional roles:

• it serves as an external cover for the body structure in the rear part of the vehicle,
• it shapes the outline of the wheel arch and the wheel well area,
• it influences the lateral stiffness and structural stability in the rear axle area,
• it is responsible for the correct guidance of the side line and the visual consistency of the roadster/coupé body.

Replacing this component is particularly important after mechanical damage, corrosion, or deformations that disrupt the body geometry and hinder the proper adjustment of the doors, trunk lid, or bumper.

Condition, origin, and advantages of using an OEM used part

The offered fender is a used original BMW component, which in practice means maintaining the factory geometry, proper sheet metal thickness, and compliance with the assembly technology used in the BMW Z4 E86. For body and paint shops as well as those involved in sports car restoration, this is a beneficial solution because it reduces the need for time-consuming adjustments and modifications.

Compared to non-factory replacements, the original side panel ensures better fitment with the doors, trunk lid, and bumper, which translates into stable maintenance of assembly gaps and a lower risk of stress in the bodywork after the repair is completed.

Support with selection and additional information

The element belongs to the Front fenders group in the catalog, however, in practice, it is a rear side panel intended for installation on the rear left side of the vehicle. In case of doubts regarding the fitment to a specific version of the BMW Z4 E86, it is worth verifying the manufacturer's markings and body parameters to ensure full compatibility with the car.

If you are planning a comprehensive repair or upgrade of the body area in your BMW and need other elements from the same group, such as side panels, skins, or wheel arch sections, check the available parts in the BMW Front fenders category.

For an informed choice of used parts for premium cars, it is worth familiarizing yourself with current market trends – you can find more on this topic in the article Crisis in the new parts market? Why in 2026 used originals for premium cars (BMW, Mercedes, Porsche) are the hottest trend, which discusses the advantages of using OEM components from dismantling in premium segment vehicles.