Seat Ibiza 6J Front Seat Belt Upper Pretensioner Left N/S Assembly 6J4857705B

The left front seat belt pretensioner for Seat Ibiza 6J is an original mounting component responsible for the correct guidance and controlled tension of the seat belt on the driver's or front passenger's side. Designed as a complete upper mounting with a pretensioner, it ensures consistency with the factory safety system in the Ibiza 6J body.

Specifications and technical data

• SKU: 6J4857705B
• Mark: Seat
• Condition: Used
• OEM Part Number: 6J4857705B
• Substitutable numbers: 6J4857705B, 6J4 857 705 B
• Location on the vehicle: Front, Left
• Rim width: 6
• Category: Seat Belts & Parts

Vehicle Application and Placement

The presented upper seat belt pretensioner with complete mounting is intended for installation at the front of the vehicle on the left side. It is responsible for guiding the belt webbing at the top of the pillar and cooperating with the tensioning mechanism, which is crucial for the safety of cabin occupants.

This component is part of the factory "Seat belts and parts" system for the Seat Ibiza 6J generation, ensuring compatibility with the body structure, mounting points, and operational characteristics of original components.

Technical and Constructional Characteristics

The pretensioner is an integral part of the upper seat belt mounting, designed to work with the factory retractor mechanism and lower anchor points. The design includes:

• precise fit to the front pillar on the left side, facilitating installation and maintaining the factory belt guidance geometry,
• secure seat belt mounting at the upper point, reducing unwanted slack and improving user comfort,
• designed width and guidance geometry for compatibility with the original belt webbing, to maintain predictable system behavior during driving and in emergency situations.

Additionally, the technical specifications include a rim width parameter, which aids in component matching within a specific vehicle configuration, where maintaining compliance with original model specifications is important.

Benefits of Using an Original Pretensioner

Using an original seat belt pretensioner in the Ibiza 6J maintains consistency with the factory passenger protection system design. Key benefits include:

• factory fit for the Seat Ibiza 6J body – no need for modifications to mountings or interference with the pillar structure,
• preservation of predictable seat belt system operation in terms of belt tension and guidance,
• compatibility with other components in the "Seat belts and parts" category for this model, simplifying servicing and potential future repairs,
• compliance with Seat's factory safety standards, which is important for technical inspections and post-accident repairs.

Condition, Origin, and Service Application

The offered component comes from the original Seat production line and is classified as a used part. It is a practical service solution for situations requiring the replacement of a damaged upper pretensioner due to a collision, safety system activation, or wear and tear.

Choosing an original used component allows for:

• maintaining consistency with factory specifications without the need for aftermarket alternatives with uncertain parameters,
• optimizing repair costs while preserving the original seat belt system design,
• easier identification by OEM and reference numbers in service catalogs and when selecting by VIN.

Related Products and Technical Knowledge

If you are looking for other components from the Seat seat belts and parts category for your car, check out the Seat seat belts and parts available in our store to select a complete service solution for the entire safety system.

When selecting original used components, it is advisable to use identification procedures based on OEM numbers and vehicle data. These principles are discussed in more detail in a blog article dedicated to the BMW brand, which describes a universal approach to selecting used parts – you can find it here: BMW – Sporty Performance and Precision. How Original Used Parts Extend the Life of the Bavarian Icon?. Although it concerns a different brand, the methods of selection by VIN and OEM presented there are also helpful when working with Seat components.