BMW F10 F11 Seat Buckle Tensioner Lower Belt Rear Left N/S 9172381

BMW F10 F11 F06 Left Rear Seat Belt Buckle Latch is a component from the Seat Belts and Parts category, designed for installation on the rear left side of the vehicle. This is a practical solution for users who want to restore the full functionality of their BMW's safety system while maintaining factory assembly standards.

Specifications and technical data

• SKU: 9172381
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9172381
• Substitutable numbers: 9172381, 72119172381
• Location on the vehicle: Rear, Left
• Category: Seat Belts & Parts

Purpose and Function of the Seat Belt Buckle

The left rear seat belt buckle latch is responsible for securely and repeatedly locking the seat belt buckle in the rear seat on the driver's side. A properly functioning latch is crucial for maintaining the correct belt position while driving and for the correct operation of the safety system in emergency situations.

The component has been specifically designed for BMW F-series bodies, ensuring factory fit to the seat structure and compatibility with the original wiring harness routing. This means installation does not require modifications or adapter brackets.

Construction and Fit for BMW F10, F11, F06

The buckle's construction has been developed to work with the standard seat belts used in BMW F10, F11, and F06 models. This includes:

• Dedicated vehicle placement – rear, left side, according to the factory seating arrangement.
• Appropriate angle relative to the seat, making it easier for both adults and younger passengers to fasten the belt.
• Compatibility with standard mounting points in the center tunnel or at the base of the seat (depending on the interior version).

This precise fit allows for the preservation of original interior ergonomics and predictable safety system behavior during vehicle use.

Benefits of Using an Original Seat Belt Buckle

Choosing a component from the Seat Belts and Parts category specifically for BMW offers a number of practical advantages:

• Consistency with the factory safety system – maintaining the manufacturer's designed mounting points and belt routing geometry.
• Stable latch hold – reducing play and unwanted noises while driving.
• Predictable operation of the locking mechanism – essential during sudden braking or changes in direction.
• Aesthetically integrated into the interior – shape and finish matched to the seats and center tunnel in F10, F11, F06 models.

Condition, Origin, and Practical Application

The offered buckle is from a BMW vehicle and is a used, aftermarket part. It is a good solution for users who want to economically restore the full functionality of the rear left seating position, for example, after damage to the latch mechanism, seat replacement, or interior upgrade.

Before installation, it is recommended to:

• Verify compatibility with the body version (F10, F11, F06) and rear seat configuration.
• Check the proper operation of the fastening mechanism after installation – by repeatedly buckling and unbuckling the belt.
• Inspect the mounting stability at the point of attachment to the vehicle structure.

Safety, Economy, and Circular Economy

Choosing a used component from the Seat Belts and Parts category is not only economical but also a real contribution to reducing resource consumption. Using tested parts from dismantling helps reduce waste and extend the lifespan of original BMW parts. If you want to better understand how such decisions affect the environment and your household budget, check out the article: circular economy in your garage and the benefits of used parts.

Other BMW Seat Belts and Parts

If you are also looking for other components from the BMW Seat Belts and Parts category – such as additional buckles, pretensioners, or complete seat belts for other seats in the car – check out our dedicated offer: BMW seat belts and parts. This will allow you to easily assemble a cohesive set of components for your car, maintaining compatibility with the manufacturer's original solutions.