BMW 3 Series E90 E91 E91N Lower Rear Left Seat Belt N/S Pre Tensioner 6983007

BMW E90 E91 Left Rear Seat Belt Buckle Tensioner is a component from the Seat Belts and Parts category, designed for the rear left side of the body. It's a practical solution for BMW users looking to restore the proper functioning of the safety system after a collision, malfunction, or interior upgrade.

Specifications and technical data

• SKU: 6983007
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 72116983007
• Substitutable numbers: 72117211595, 7211595, 72117137469, 7137469, 72116975363, 6975363, 72116983007, 6983007, 72117127223, 7127223 PS
• Location on the vehicle: Rear, Left
• Category: Seat Belts & Parts

Vehicle Application and Function

The left rear seat belt buckle tensioner is responsible for the secure fastening of the seat belt and its interaction with the vehicle's passive safety systems. A correctly selected component ensures:

• reliable anchoring of the seat belt at the factory mounting point,
• proper cooperation with the belt mechanism during sudden braking or impact,
• maintenance of the factory safety system geometry on the rear seat.

Thanks to its dedicated placement on the vehicle, the tensioner is tailored to the body structure of the BMW 3 Series E90/E91, which facilitates installation and reduces the risk of improper fit.

Compatibility and Technical Specifications

The offered tensioner comes from the BMW parts family and is an OEM type component, meaning it complies with the manufacturer's factory standards. The part has an assigned OEM number and related interchangeable numbers, allowing for easy verification with service documentation or parts catalogs.

The presence of reference numbers facilitates:

• precise matching to the specific body version (E90/E91),
• verification of compatibility with the existing seat belt installation,
• hassle-free identification in catalog systems used by workshops and stores.

Performance Characteristics and Installation

The left rear seat belt buckle tensioner is structurally designed for installation at the factory mounting points. This allows for:

• maintaining the original belt routing on the rear seat,
• ensuring correct operation of the locking mechanism in emergency situations,
• reducing installation time compared to universal or modified parts.

The product belongs to the Seat Belts and Parts group, meaning it is designed to meet stringent passive safety requirements. The used nature of the component allows for economical repair while maintaining the original structural specifications.

Condition, Origin, and Service Application

The tensioner is a part from the aftermarket, offering a cost-effective solution for users seeking a functional and economical way to restore the seat belt system's operability. Such components are often used in:

• post-collision repairs, when the tensioner system has been deployed,
• safety system servicing after upholstery replacement or interior upgrades,
• restoring a car to factory condition after previous, unprofessional modifications.

By retaining the original BMW construction, the tensioner helps maintain the integrity of the entire safety system according to the manufacturer's design.

Completing the BMW Seat Belt System

If you need other components from the BMW seat belts and parts category, check out the BMW seat belts and parts available in our store to complete the set for your vehicle.

When planning more extensive service work or optimizing repair costs, it's worth reading the guide on our blog: How to Save on Original Car Parts with Volkswagen as an Example – many principles for selecting and verifying used parts also apply to BMW.