Audi A4 B8 Rear Seat Belt Buckle Right O/S Safety Belt Tensioner 8K0857740AC

Audi A3 8P Seat Belt Buckle Right Rear is an original part from the Seat belts and parts category, designed for installation on the rear right side of the vehicle. It ensures proper seat belt fastening, which translates to stable passenger restraint and improved driving safety.

Specifications and technical data

• SKU: 8K0857740AC
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0857740AC
• Substitutable numbers: 8K0857740AC, 8K0 857 740 AC, 8K0857740B, 8K0 857 740 B
• Location on the vehicle: Rear, Right
• Category: Seat Belts & Parts

Intended Use and Vehicle Placement

The presented seat belt buckle is dedicated to the rear right seat in the Audi A3 8P model. It is responsible for securely locking the seat belt buckle, which is crucial for the correct operation of the entire passive safety system. The design is engineered to work with factory mounting points in the body, without requiring modifications.

Its placement on the rear right side of the vehicle allows for precise alignment with the original belt harness and routing, minimizing the risk of looseness, improper positioning, or accidental unbuckling during driving.

Seat Belt Buckle Construction and Function

The seat belt buckle in the Audi A3 8P performs several key functions:

• Mechanical locking of the belt buckle – stable retention of the belt tongue in the buckle receptacle during driving and in emergency situations.
• Interaction with vehicle safety systems – a correctly functioning buckle enables the proper operation of systems monitoring belt engagement.
• Appropriate geometry and height – designed to fit the rear seat of the Audi A3 8P, contributing to user comfort and correct belt positioning across the passenger's body.

Thanks to its factory design, the component maintains appropriate rigidity and load resistance, which is important during sudden braking or collisions.

Benefits of Using an Original Audi Buckle

Choosing an original seat belt buckle for the Audi A3 8P offers a range of practical advantages:

• Factory fitment – compatibility with the seat and body structure, eliminating the need for modifications to brackets or wiring.
• Consistency with other system components – seamless integration with factory seat belts and vehicle control systems.
• Stable performance in daily use – consistent, tactile buckling and unbuckling of the belt, enhancing user comfort.

By adhering to the original specifications, installation is streamlined, and the risk of compatibility issues is minimized.

Item Condition and Practical Application

The offered seat belt buckle is a used part, allowing for an economical restoration of full functionality to the rear right seat belt in the Audi A3 8P. This is a good solution in cases of damaged locking mechanisms, wear and tear, or the need for replacement after an accident.

Before installation, it is recommended to verify the correct operation of the fastening mechanism and check for compatibility with the specific vehicle configuration to ensure the full functionality of the safety system.

Ecology and the Use of Used Parts

The use of a used seat belt buckle aligns with the concept of responsible vehicle ownership and waste reduction. Many components from the seat belts and parts category can function effectively for a long time, provided their technical condition is maintained.

If you are interested in a broader context of using aftermarket parts in automotive applications, it is worth reading the article describing a practical approach to eco-tuning: Eco-tuning in practice – how to increase performance and reduce carbon footprint with recycled parts.

Audi Seat Belts and Parts – Selecting the Right Components

If you are looking for other components from the Audi seat belts and parts category – for example, to expand or completely replace the system in your car – check the available products in our catalog: Audi seat belts and parts. This will help you more easily select compatible parts for your specific model and interior configuration.