VW Volkswagen Passat B7 Seat Belt Inertia Reel Rear Left N/S 3C9857805J

VW Volkswagen Passat B7 Seat Belt Inertia Reel Rear Left N/S is an original part from the Seat belts and parts group, designed for installation on the rear left side of the vehicle. This is a factory-original Volkswagen component that allows you to restore the proper functioning of the rear passenger restraint system following a collision, failure, or wear of the previous seat belt.

Specifications and technical data

• SKU: 3C9857805J
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 3C9857805J
• Substitutable numbers: 3C9857805J, 3C9 857 805 J
• Location on the vehicle: Rear, Left
• Category: Seat Belts & Parts

Purpose and function of the seat belt

The presented seat belt has been designed specifically for the rear left section of the Volkswagen Passat B7 cabin. Its task is to stably hold the passenger in the seat during sudden braking or a collision, as well as to work in conjunction with other elements of the vehicle's passive safety system. Thanks to its factory origin, the correct belt routing geometry and appropriate mounting points are maintained.

Original Volkswagen craftsmanship

As a Volkswagen brand component, the seat belt complies with the factory quality and safety standards applied to this model. This ensures a perfect fit to the body structure, the correct webbing length, proper operation of the retractor mechanism, and compatibility with the seat and body mounts on the rear left side. Using an original component reduces the risk of installation issues and eliminates the need for modifications.

Vehicle placement and fitment

The belt is intended for installation in the rear zone, on the left side of the vehicle. This precise placement allows for selecting the correct part for a specific mounting point, which is important for both safety and ergonomics. Proper fitment to the body facilitates installation and ensures correct belt routing relative to the backrest and seat cushion of the rear bench.

Characteristics of the used component

The seat belt comes from professional dismantling and is offered as a used part. This type of OEM component is a sensible choice when you want to maintain the vehicle's factory specifications while optimizing repair costs. A used belt from original production retains the design intended by the manufacturer, which is particularly important for components responsible for passenger safety.

Safety, repairs, and part selection

When replacing safety-related components, it is worth paying attention to the consistency of the entire system – from the body mounts and tensioners to the belts themselves. In the case of extensive work on the passenger restraint system, choosing original components from the same group allows you to maintain the operating parameters of the system as intended by the manufacturer.

If you are planning a comprehensive repair or upgrade of the rear passenger safety zone in your Volkswagen and need other elements from the same group, such as center belts, tensioners, or mounts, check out the available parts in the Volkswagen seat belts and parts category.

If you are interested in a broader approach to repairs using original dismantled components and want to better understand why factory-used drivetrain elements are often a better choice than unreliable replacements, read the article Humming differential? Find out why a used OEM drive axle is a better investment than an unreliable replacement.

Summary

VW Volkswagen Passat B7 Seat Belt Inertia Reel Rear Left N/S is an original, used part from the Seat belts and parts group, designed for the rear left side of the vehicle. Choosing a factory component allows you to maintain compatibility with the car's design, ensure the proper functioning of the passenger restraint system, and uphold high safety standards at a reasonable repair cost.