BMW X3 Series E83 Support Bracket Mount Mounting Bumper Right Rear O/S 3400958

BMW X3 E83 Rear Bumper Bracket Mount is an original part from the Bumpers and Reinforcements category, designed for the right rear side of the body. The bracket provides stable support for the bumper, ensuring a secure fit, proper panel alignment, and an aesthetically pleasing rear appearance for your BMW vehicle.

Specifications and technical data

• SKU: 3400958
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3400958
• Substitutable numbers: 51123448678, 3448678, 51123400958, 3400958, 51123416242, 3416242
• Location on the vehicle: Rear, Right
• Category: Bumpers & Reinforcements

Intended Use and Function of the Part

The rear bumper bracket mount in the BMW X3 E83 is responsible for the correct positioning of the bumper cover on the right side. This part:

• stabilizes the bumper in relation to the body structure,
• minimizes unwanted play and vibrations,
• helps maintain correct gaps between the bumper and adjacent panels.

This ensures that the rear of the car retains its factory geometry, and the bumper functions correctly during both daily use and during service removals.

Original Origin and Replacement Numbers

The bracket comes from the BMW line, meaning it complies with the manufacturer's original design and material standards. The part has a dedicated part number and associated interchangeable numbers, making it easy to verify its compatibility with a specific BMW X3 E83 version. Using an original mount reduces the risk of fitment issues common with random aftermarket alternatives.

Vehicle Placement and Fitment

The presented mount is intended for the rear, right side of the vehicle. When selecting a part, it is important to consider:

• correct mounting side (right/left),
• generation and body version of the BMW X3 E83,
• type of bumper installed on the specific vehicle.

This ensures a direct fit without modifications, maintaining factory mounting points and the manufacturer-specified connection rigidity.

Condition and Benefits of Choosing a Used OEM Part

The offered bumper mount is used, which translates to a favorable combination of original quality and an attractive price. Compared to inexpensive aftermarket parts:

• it retains factory geometry and mounting hole spacing,
• it is made from material selected by the manufacturer for durability and performance in the impact zone,
• it reduces the risk of installation problems and the need for additional adjustments.

For workshops and individual users, this means faster installation, a lower risk of complaints, and predictable part performance over the long term.

Application in Body Repairs and Cost Optimization

Replacing the bumper bracket is particularly important after collisions, parking damage, or previous improper repairs. Using an original mount:

• facilitates the correct alignment of the bumper with the trunk lid and fenders,
• allows for maintaining body lines consistent with the manufacturer's design,
• reduces the need for additional adjustments and bodywork corrections.

This solution is especially beneficial for workshops specializing in the BMW brand, where consistent results and predictable repair times are crucial.

If you need other parts from the Bumpers and Reinforcements category for this brand, check the available BMW bumpers and reinforcements to complete your rear body repair kit.

Learn more about the advantages of original, used body and drivetrain components in the article Noisy differential? Why a used OEM drive axle is a better investment than an uncertain aftermarket part, which shows how to make informed choices when selecting OEM parts for car repairs.