Mercedes W163 Rear Seat Belt Buckle Latch Catch Right O/S Side A1638601069

Mercedes W163 Rear Seat Belt Buckle Latch Catch Right O/S Side is an original component from the Seat belts and parts category, designed for installation in the rear, right side of the vehicle. This used buckle allows for maintaining the factory functionality of the safety system, ensuring consistency with the Mercedes vehicle design for both the driver and passengers. It is a practical solution for post-accident repairs, replacing worn-out components, or completing missing equipment.

Specifications and technical data

• SKU: A1638601069
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1638601069
• Substitutable numbers: A1638601069, A 163 860 10 69
• Location on the vehicle: Rear, Right
• Part type: Buckle Tongue
• Category: Seat Belts & Parts

Purpose and vehicle placement

The presented buckle is dedicated to installation in the rear, right part of the car interior, in the location factory-specified by the manufacturer. It is responsible for the proper fastening of the seat belt, working in conjunction with the existing webbing and tensioner, thus maintaining the correct belt routing geometry and comfort for the rear seat passenger.

Such precise fitment for a specific mounting location reduces the risk of compatibility issues and facilitates service, especially in vehicles where maintaining the original safety system configuration is essential.

Technical and functional characteristics

The buckle has been designed as a component that works with the factory Mercedes seat belt system, allowing for consistency with the seat structure, mountings, and vehicle electronics (if the car is equipped with seat belt buckle sensors). This enables:

• restoring the full functionality of the rear right seating position,
• maintaining the correct operation of seat belt warning lights,
• preserving operational ergonomics – intuitive fastening and unfastening of the belt by the passenger.

The original Mercedes origin ensures precise fitment with upholstery and trim elements, without the need for modifications or adjustments to the mountings.

Component condition and service application

The product is offered as a used part, making it a reasonable choice for maintenance or post-accident repairs when the priority is to maintain the original design while optimizing costs. The used seat belt buckle is suitable for, among other things:

• replacing a damaged or malfunctioning seat belt buckle on the rear right side,
• replenishing missing components after interior disassembly,
• restoring the completeness of equipment before a technical inspection.

Thanks to the preservation of the factory mounting geometry, installation proceeds in a manner similar to the manufacturer's service procedures, which facilitates work for workshops and those involved in professional vehicle restoration.

Safety, compatibility, and part selection

The seat belt system in Mercedes cars is designed as a cohesive unit, which is why it is important to match the buckle to the specific model and mounting location. The offered component is intended for vehicles from the W163 family and has been designed to work with factory seat belts on the rear right side.

To ensure that the selected buckle is appropriate, it is worth verifying compatibility with the OEM part number and interchangeable numbers in the service documentation or the manufacturer's catalog. This approach minimizes the risk of installing an incorrect component and helps maintain the proper level of passive safety in the vehicle.

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

Support for upgrades and retrofits

Used original components, such as the rear right seat belt buckle, are also often used in retrofitting projects or for restoring the factory interior configuration after previous modifications. For more extensive modernization work, including other premium group brands, it is worth reading the guide on the intelligent use of dismantled parts – you will find practical tips in the article Retrofitting in VAG and BMW group cars: how to affordably upgrade your car using used parts from higher trim levels.

Summary

Mercedes W163 Rear Seat Belt Buckle Latch Catch Right O/S Side is a practical choice for those who want to restore full functionality to the seat belt system on the rear right side while maintaining the manufacturer's original solutions. This used, factory component from the Seat belts and parts category allows for a technically correct repair, supports the maintenance of the vehicle's passive safety, and provides a cost-effective alternative to new components while maintaining high compatibility with the Mercedes construction.