BMW X3 Series E83 E83N LCI Mount Bumper Rear Left N/S 51123400953

The BMW E83 X3 Rear Bumper Slide Bracket Left is a precise body component from the Bumpers and Reinforcements group, designed for the rear left side of the vehicle. It is responsible for the stable guidance of the bumper cover, ensuring proper fitment and secure mounting of body elements. A used, original BMW component is a sensible choice for professional repair or reconstruction of the rear of the car.

Specifications and technical data

• SKU: 74226513
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3400953
• Substitutable numbers: 51123400953, 3400953
• Location on the vehicle: Rear, Left
• Category: Bumpers & Reinforcements

Function and Application of the Bumper Slide Bracket

The rear left bumper slide bracket in the BMW X3 E83 plays a key role in the correct guidance and support of the rear bumper. It is responsible for:

• maintaining the correct geometry of the bumper in relation to the bodywork,
• reducing play and vibrations of the cover,
• providing stable support for the bumper during vehicle operation,
• facilitating the assembly and disassembly of body elements in the rear of the car.

Thanks to a properly selected bracket, the factory fit of the body lines is maintained, which translates to aesthetics and correct functioning of adjacent elements.

Compatibility and Fitment for BMW X3 E83

The presented bracket has been designed specifically for the BMW X3 E83 generation and the Rear, Left position. This means its geometry, mounting points, and shape are adapted to the rear left part of this model's body structure.

Original sourcing from the BMW brand helps maintain factory mounting parameters, minimizing the risk of fitment issues and eliminating the need for modifications. This is particularly important in collision repairs, where the precision of recreating the original body structure is crucial.

Component Characteristics and Benefits of Use

As a part from the Bumpers and Reinforcements category, the slide bracket works in close proximity to the bumper, absorbing some of the loads resulting from daily operation. Using a used, original component offers a range of practical benefits:

• maintaining compliance with the factory body structure of the BMW X3 E83,
• secure mounting of the bumper without excessive stress,
• reducing the risk of cracks and deformations of the cover in the rear left area,
• enabling economical repair while maintaining high component quality.

A used slide bracket is a good solution wherever the technical correctness of the repair is important, and cost control is also a priority.

Service Purpose and Installation

The component is primarily intended for service applications in BMW X3 E83 vehicles where the original bracket in the rear left part of the body has been damaged or worn out. It is suitable for both collision repairs and the reconstruction of bumper mountings after many years of use.

Thanks to the preservation of factory geometry, installation proceeds in an organized manner, and a correctly installed bracket restores proper support and guidance to the bumper, which contributes to the durability of the entire mounting system.

If you are planning a comprehensive repair of the rear bodywork on your BMW and also need other mounting and guiding elements from the same group, check the available parts in the BMW Bumpers and Reinforcements category.

For drivers interested in a broader perspective on vehicle construction, the relationships between body elements and vehicle handling, and the impact of components on driving comfort, an article explaining the operation of the steering and power steering system may be helpful – you can find more information in the material Steering and Power Steering System – How it Works and What Fails?.