BMW U06 Rear Bumper Mount Bracket Guide Left N/S Side 8739139

The BMW U06 Left Rear Bumper Mounting Bracket is an original body part from the Brackets, Mountings, and Assembly Parts group, designed for precise positioning of the bumper at the rear of the vehicle. It ensures stable guidance of the bumper on the left side, contributing to correct body line alignment and reducing unwanted stress. This is a practical solution for users who wish to restore the factory geometry of the rear bodywork after a collision or bumper replacement.

Specifications and technical data

• SKU: 8739139
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8739139
• Substitutable numbers: 8739139, 51128739139, L106063S31814
• Location on the vehicle: Rear, Left
• Category: Mounts, Brackets & Hardware

Purpose and Function of the Part

The presented bracket is designed for the left rear body area, where it is responsible for the proper positioning of the bumper relative to the fender, trunk lid, and other panels. As an OEM mounting part for the BMW U06, it has been developed to:

• maintain the bumper in a stable position during driving and maneuvering,
• reduce the risk of play and creaks around the bumper,
• ensure repeatable, factory-standard fitment after any disassembly and assembly operation.

Thanks to this, the rear bodywork retains its correct geometry, and the body lines remain consistent with the manufacturer's design.

Construction and Fitment for BMW U06

The left rear bumper mounting bracket has been constructed with the specific mounting layout of BMW U06 models in mind, allowing for secure and repeatable installation without the need for modifications. Characteristic mounting points and a shape tailored to the bumper and body profile enable:

• easy clipping into factory brackets and hooks,
• correct distribution of forces acting on the bumper during operation,
• maintaining compatibility with original covers and other mounting components.

This solution facilitates quick servicing and hassle-free replacement of a damaged bracket with a functional used part.

Characteristics of the Used Part

The offered bracket is a used part, meaning it is pre-owned but still functionally sound for mounting purposes. In practice, this allows for an economical repair of the rear bodywork while maintaining the original BMW construction. A part of this type is particularly useful when:

• local damage to the left side bumper mounts has occurred,
• the bumper has been removed multiple times and the factory brackets have worn out,
• correct alignment needs to be restored after body and paint repairs.

Using an original bracket from the same model series helps minimize the risk of bumper fitment issues compared to aftermarket alternatives with universal geometry.

Importance of Correct Rear Bumper Mounting

A correctly functioning left-side bracket directly impacts the aesthetics and functionality of the rear of the vehicle. Proper bumper alignment relative to the bodywork:

• improves the visual consistency of the body lines,
• reduces the possibility of the bumper rubbing against adjacent components,
• lowers the risk of additional damage during operation.

For body shops and service centers specializing in the BMW brand, this is a practical mounting component that facilitates repairs in accordance with manufacturer guidelines.

Related BMW Mounting Parts

If you are planning a comprehensive repair or upgrade of the rear body area on your BMW and need other parts from the same group, such as additional brackets, supports, or bumper mounts, check the available parts in the category BMW Brackets, Mountings, and Assembly Parts.

If you want to better understand how using used parts affects the operation and servicing of vehicles of this brand, it is worth reading the guide on our blog: Years of Driving Pleasure – How to Care for iDrive Systems and Electronic Modules in BMW 3 and 5 Series Models Using Used Parts?