BMW X3 F25 X4 F26 Door Sound Insulation Panel Cover Rear Left N/S 7350881

BMW X3 F25 X4 F26 Door Sound Insulation Panel Cover Rear Left N/S is an original component from the Door upholstery group, designed for installation in the rear left section of the vehicle body. The carefully designed structure of the insulation improves the acoustic comfort of the cabin, reduces external noise penetration, and stabilizes the door panel during daily operation.

Specifications and technical data

• SKU: 7350881
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7350881
• Substitutable numbers: 7350881, 7351207, 51487351207
• Location on the vehicle: Rear, Left
• Part type: Door Panel
• Category: Door Panels

Purpose and fitment for BMW X3 F25 / X4 F26

The presented insulation is dedicated to the rear left side of the body in BMW X3 F25 and BMW X4 F26 models. The supporting structure and shape are adapted to the factory door geometry, which allows for precise fitting with the outer sheet metal, wiring harnesses, and other trim elements. As a result, the installation process is straightforward, without the need for modifications or forced adjustments.

Acoustic function and interior door protection

The insulation plays a key role in reducing vibrations and noise transmitted from the wheel arch, suspension, and road environment. The properly selected material density dampens:

• road noise and tire operation sounds,
• door panel resonance at higher speeds,
• minor vibrations generated by mechanisms inside the door.

Additionally, this element acts as a protective barrier for the interior of the door, helping to separate moisture and contaminants from the electrical wiring, lock, and window guides. Consequently, the durability of the entire door assembly and the stability of the mechanisms are improved in the long term.

Benefits of using original door upholstery

Choosing original insulation from the Door upholstery category translates into a number of practical benefits:

• maintaining the factory acoustic parameters of the cabin,
• secure fitment to mounting points and structural embossments,
• consistency with other door trim elements,
• easier diagnostics and future service thanks to compliance with manufacturer documentation.

This solution is particularly recommended for post-accident repairs, replacing corroded or damaged parts, and during comprehensive vehicle interior restoration, when you want to maintain the soundproofing quality characteristic of BMW.

Characteristics of the used part

The offered insulation is a used part, which allows you to combine a favorable purchase cost with the preservation of the original manufacturer's specifications. Such components are frequently chosen for economical vehicle repairs when functionality, structural compatibility, and quick installation are the priority. In practice, this means the ability to restore proper soundproofing of the rear left door area without the need to invest in a new set of upholstery.

Support with selection and additional information

Detailed identification data, such as manufacturer markings, interchangeable numbers, and information about the vehicle location, are available in the product database, which facilitates verification of compatibility with the specific equipment version of your BMW. In case of doubt, it is worth comparing the shape and type of insulation with the element currently installed in the car or consulting a service center specializing in the brand.

If you are planning a comprehensive repair or upgrade of the door area in your BMW and need other elements from the same group, such as upholstery panels, insulation inserts, or interior covers, check the available parts in the BMW door upholstery category.

To compare the approach to economical repair using second-hand parts, you can read the Skoda service guide – practical tips regarding the advantages of used parts can be found in the article on the cost-effectiveness of using used OEM components.