BMW E88 Seat Belt Cover Trim Rear Right O/S Black 9128776

The Mercedes W212 Right Front Belt Mount Cover is an original part from the seat belts and parts category, originating from the BMW group, designed for installation in the rear right part of the body. The black cover provides an aesthetic and functional finish to the belt mounting area, supporting the safe and stable operation of the passive safety system.

Specifications and technical data

• SKU: 9128776
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9128776
• Substitutable numbers: 9128776, 51439128776, KD
• Location on the vehicle: Rear, Right
• Color: Black
• Category: Seat Belts & Parts

Purpose and Function of the Part

The belt mount cover is responsible for the stable guidance of the seat belt and protecting its mounting point from mechanical damage and dirt. Its placement in the rear right part of the vehicle allows for the correct operation of the seat belt for the passenger sitting in the rear on the right side.

This part is important for both user comfort of the belt (smooth extension and retraction) and for maintaining the correct geometry of the mounting system during daily vehicle operation.

Construction, Color, and Fitment

The black color of the cover allows for seamless integration with most factory interiors used in BMW vehicles, including fabric and leather upholstery. The neutral shade of black facilitates integration with door panels, pillars, and other cabin trim elements.

As an OEM BMW part, the cover has been designed for precise fitment with factory mounting points. The appropriately shaped mounting geometry reduces stress on the plastic and helps maintain a stable belt position while driving.

Benefits of Using an Original Belt Mount Cover

Using a dedicated cover in the seat belt system offers a range of practical benefits:

• Maintaining proper belt guidance – reducing the risk of the webbing twisting and rubbing against sharp edges.
• Protection of the mounting point – shielding metal components from accidental impacts and dirt from inside the vehicle.
• Aesthetic interior finish – covering structural body parts and providing a cohesive look to the rear cabin.
• Improved belt ergonomics – more predictable webbing behavior during fastening and unfastening.

Condition, Application, and Installation

This part comes from the used BMW parts segment, allowing for the economical restoration of full seat belt system functionality without the need to resort to more expensive aftermarket replacements. It is a good solution for post-accident repairs, replacing damaged covers, or completing missing interior elements.

The cover is intended for installation in the rear right part of the vehicle. During installation, it is recommended to follow the order of disassembly and assembly of trim elements and to check the correct positioning of the belt webbing in the guides, so as to ensure smooth retraction and extension without additional resistance.

More Products and Technical Advice

If you are looking for other parts from the BMW seat belts and parts category, check out the BMW seat belts and parts available in our store to select compatible components for your vehicle from the same group.

To better care for used components, including interior and safety system parts, it is worth reading the guide How to Extend the Lifespan of Used Car Parts?, which describes practical methods for maintaining and diagnosing used components.