Audi TT 8J Seat Belt Rear Middle Seatbelt Buckle 8J857739H

The Audi TT 8J rear center seat belt buckle is an original part from the seat belts and parts category, designed for installation on the rear bench seat. It ensures proper fastening of the center seat belt, which is crucial for passenger safety and vehicle compliance with technical requirements.

Specifications and technical data

• SKU: 8J857739H
• Mark: Audi
• Condition: Used
• OEM Part Number: 8J857739H
• Substitutable numbers: 8J857739H, 8J8 577 39H
• Location on the vehicle: Rear
• Rim width: 8
• Category: Seat Belts & Parts

Application and Function in Audi TT 8J

The presented buckle is dedicated to the rear seating row in the Audi TT 8J generation. It is responsible for the stable and repeatable locking of the center seat belt, minimizing the risk of improper fastening and improving passenger protection during driving.

The component works with the factory seat belt mounting system, thus maintaining consistency with the original interior design and proper belt webbing guidance. This solution is particularly important for daily car use when the center seat on the rear bench is regularly utilized.

Construction and Mounting Fit

The original seat belt buckle has been designed for precise installation in the rear part of the body. The construction is adapted to factory mounting points, which facilitates the mechanic's work and reduces replacement time.

• Factory Fit – maintains the correct mounting geometry in the rear of the vehicle.
• Compatibility with Original Belt – proper cooperation with the center seat belt buckle.
• Stable Seating – reduces play and unwanted noises during driving.

By adhering to the original mounting specifications, the buckle allows for seamless integration with the existing safety system in the Audi TT 8J, without the need for modifications to the seat structure or upholstery.

Performance Characteristics and Safety

A functional center seat belt buckle directly impacts the effectiveness of the passive safety system. Proper holding of the belt buckle limits passenger body movement during sudden braking or collision.

• Repeatable Locking Mechanism Operation – secure fastening and quick release when needed.
• Appropriate Connection Stiffness – maintains predictable belt behavior under load.
• Integration with Rear Bench – preserves the ergonomics of using the third seating position.

Replacing a worn or damaged buckle with an original part restores the factory level of passenger protection on the rear bench, which is important from both a safety and technical inspection perspective.

Condition of the Part and Benefits of Choosing a Used Part

The offered seat belt buckle is a used part, sourced from dismantling. Such components, when their mechanism is still functional, represent an economical solution for users who prioritize safety while controlling service costs.

Choosing an original used part allows for:

• maintaining compliance with the factory design of the seat belt system,
• reducing repair costs compared to new parts,
• maintaining a consistent equipment standard within the rear bench.

Other Audi Seat Belts and Parts

If you are looking for other Audi seat belts and parts for your car, check out our dedicated category: Audi seat belts and parts. There you will find a wide selection of safety system components tailored to various models of this brand.

Technical Knowledge and Part Selection

When upgrading or repairing safety systems, it is important to know the differences between individual Audi model lines, including the sporty RS versions. To better understand the specific construction of this brand, read the article: Audi RS vs. Other Models – What Lies Under the Hood and Chassis?. This is a helpful source of knowledge when planning further modifications or car expansions.

If you are interested in a broader perspective on the market for original used parts and want to make informed choices about components for your car, also check out the guide: Best Used Car Parts – A Guide to the Most Frequently Chosen Original Parts. This will help you better assess when the use of a used part is technically justified.