VW T-Roc A11 Front Seat Belt Buckle Latch Catch Lock Left Right N/O/S 5NA857756A

The Volkswagen T-Roc A11 Seat Belt Buckle Front Left is an original safety system component designed for factory installation in the Volkswagen T‑Roc model. It ensures secure fastening of the seat belt in the front seats, supporting the proper functioning of driver and passenger protection systems.

Specifications and technical data

• SKU: 5NA857755
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 5NA857755MNB
• Substitutable numbers: 5NA857755, 5NA 857 755
• Location on the vehicle: Front, Left, Right
• Part type: Buckle Tongue
• Category: Seat Belts & Parts

Seat Belt Buckle Purpose and Function

The presented seat belt buckle is a component from the Seat Belts and Parts category, responsible for mechanically fastening the belt and transmitting a signal to the vehicle's electronics (seat belt warning light, airbag logic – according to the car's configuration). The component's design is adapted to the architecture of the seats and the center tunnel in the Volkswagen T‑Roc, facilitating installation and maintaining factory operational ergonomics.

Vehicle Placement and Compatibility

The buckle is designed for use in the front seats of the vehicle, with the possibility of application on the left or right side, depending on the interior configuration. This solution allows for:

• maintaining the correct belt geometry relative to the seat and body pillar,
• consistency with factory mounting points in the floor and seat structure,
• proper cooperation with the standard seat belts used in the Volkswagen T‑Roc A11.

Thanks to this, the component does not require modification of the body structure or additional mechanical installation adjustments after assembly.

Technical Characteristics and User Benefits

The seat belt buckle for the Volkswagen T‑Roc is manufactured as an OEM-class part, meaning it fully matches the vehicle manufacturer's standards. The construction includes:

• a precise locking mechanism ensuring secure engagement of the belt tongue,
• an electrical connector (if present in the specific configuration), enabling cooperation with the seat belt warning system,
• stable mounting to the seat or floor, reducing unwanted play and noise during driving.

This type of solution helps maintain predictable passive safety system behavior in emergency situations and during everyday vehicle use.

Component Condition and Service Application

The offered buckle is a used part from disassembly, making it an attractive cost-effective alternative to new components while maintaining the original manufacturer's specifications. This type of component is particularly useful in cases of:

• post-accident repairs, where safety systems have deployed and belt system components require replacement,
• rectifying operational faults, such as problems with belt latching or incorrect seat belt warning light indications,
• restoring full interior functionality after seat replacement or equipment modifications.

How to Choose the Right Seat Belt Buckle

To ensure full compatibility with your Volkswagen T‑Roc, pay attention to:

• compliance with the Seat Belts and Parts category – the component must work with factory belts and mounting points,
• vehicle placement – selecting the buckle for the front of the vehicle and the correct side,
• manufacturer markings – part numbers and interchangeable numbers allow for precise component matching to a specific equipment version.

If in doubt, it is advisable to compare the construction of your current buckle with the offered item or consult a professional for selection based on the OEM number.

If you are looking for other items from the Volkswagen Seat Belts and Parts category, check out our dedicated offer: Volkswagen Seat Belts and Parts.

Considering whether to choose a new or used part for items like seat belt buckles? Read our cost and durability analysis in the article: Car Parts – New or Used? Comparing Costs, Quality, and Durability.