BMW Z4 Series E89 Rear Left N/S Quarter Side Panel Wing Fender Mineralgrau B39

BMW Z4 Series E89 Rear Left N/S Quarter Side Panel Wing Fender Mineralgrau B39 is an original body component designed for precise installation of the rear quarter panel. Thanks to its factory geometry and preserved body lines, it provides a solid foundation for accident repairs or professional body restoration. This is a solution for users who expect consistent visual and structural alignment with the rest of the vehicle body.

Specifications and technical data

• SKU: 7225123-MG
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7225123
• Substitutable numbers: 41007225123, 7225123
• Location on the vehicle: Rear, Left
• Color: Mineral Grau Metallic - B39
• Category: Fenders

Purpose and fitment for BMW Z4 E89

The presented item is a rear left side body panel designed for the BMW Z4 E89 series. The fender covers the driver's side quarter panel area, determining the shape of the wheel arch, the side line, and the proper alignment of the door and bumper edges. The construction, based on the original BMW design, ensures:

• preservation of original mounting points and connection edges with other panels,
• correct body geometry in the rear axle zone,
• easier adjustment of gaps between body components.

Mineral Grau Metallic B39 color and preparation for painting

The fender is finished in the factory Mineral Grau Metallic B39 color, characteristic of many BMW configurations. For body and paint shops, this means the possibility of:

• verifying color compatibility with other body parts,
• limiting the painting scope to the repair zone if the vehicle's existing coating is in good condition,
• precise preparation for repainting during a full restoration process.

The metallic coating provides a good base for further work, and maintaining the original structure facilitates achieving a consistent visual effect after repair.

Structural and assembly characteristics

The rear left side panel in the BMW Z4 E89 is a structural element that contributes to the body rigidity in the rear part of the vehicle. It is responsible for the correct alignment of the wheel arch line, trunk edge, and connections with the rocker panel and pillar. In assembly practice, this translates into:

• the ability to recreate the factory side line after collision repairs,
• better fitment with the door, rear bumper, and trunk lid,
• preservation of the correct geometry for lamp mounting points and adjacent components.

For a body technician, this means fewer adjustment corrections and a more predictable assembly process compared to aftermarket parts with uncertain geometry.

Why choose an original used BMW fender

An original BMW side panel, even in used condition, retains factory stamping quality and dimensional compatibility with the rest of the body. In service practice, this translates into:

• stable strength parameters in the rear body zone,
• easier recreation of factory gaps and character lines,
• reduction in the amount of body filler and edge adjustment required.

If you want to better understand when original used body parts are a more favorable choice than replacements, it is worth reading the article Accident repair of your car: why used body parts are a better choice than replacements?, which discusses in detail the differences in quality and cost-effectiveness of such solutions.

Expanding repairs in the wheel arch and side body area

During the repair of the rear left quarter of a BMW Z4 E89, it is often necessary to also verify the condition of adjacent body elements, such as internal reinforcements, bumper mounts, or rocker edges. If you are planning a comprehensive repair or upgrade of the wheel arch and side body area in your BMW and need other parts from the same group, such as additional panels, covers, or supplementary body elements, check the available parts in the BMW Front Fenders category.