Mercedes X164 Seat Belt Buckle Rear Left N/S A1648602169

The Mercedes X164 Rear Left Seat Belt Buckle is an original part from the seat belts and parts category, designed for installation on the rear left side of the vehicle. This is a practical solution for users who want to restore full functionality to their Mercedes' safety system, while maintaining factory fit and compatibility with the seat belt mounting system.

Specifications and technical data

• SKU: A1648602169
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1648602169
• Substitutable numbers: A1648602169, A 164 860 21 69
• Location on the vehicle: Rear, Left
• Category: Seat Belts & Parts

Purpose and Function of the Seat Belt Buckle

The Mercedes X164 Rear Left Seat Belt Buckle is responsible for securely fastening the belt and ensuring proper cooperation with the pretensioner and locking mechanism. Its placement on the rear left side of the vehicle allows for precise fitting to the factory rear seat and body structure, which is crucial for maintaining the correct seat belt mounting geometry.

This component is important for:

• passenger safety – stable belt fastening in case of sudden braking or collision,
• compatibility with the factory SRS system – correct interaction with vehicle sensors and electronics,
• user comfort – proper positioning of the buckle relative to the seat and belt guides.

Original Origin and Fit for Mercedes X164

As a Mercedes part, this buckle has been specifically designed for the X164 body structure, taking into account requirements for durability, ergonomics, and interior integration. Factory fit means that the shape, mounting method, and socket geometry are consistent with the original installation, which facilitates assembly and minimizes the risk of play or incorrect belt positioning.

The product has a dedicated OEM part number and associated interchangeable numbers, allowing for precise verification of compatibility by manufacturer identifiers, without the need for universal replacements.

Characteristics of the Used Component

The seat belt buckle is offered as a used part, which represents a cost-effective solution while maintaining the original manufacturer's specifications. For many Mercedes X164 owners, this is a reasonable compromise between price and retaining factory quality and fit.

Choosing a used OEM part is particularly important for safety components, where the following are crucial:

• structural compatibility with the factory belt system,
• correct mounting geometry relative to the seat and body,
• consistency with other interior elements in terms of shape and operation.

Installation and Application in the Safety System

The rear left seat belt buckle is designed for installation at the factory mounting point in the rear of the cabin. As a part designed by the vehicle manufacturer, installation is straightforward, without the need for structural modifications or additional adapters.

When replacing the buckle, it is advisable to pay attention to:

• correct placement on the vehicle – only the rear left side, as indicated,
• checking the belt's secure fastening after installation,
• verifying the operation of the locking mechanism in typical driving situations (braking, load changes).

Why Choose This Seat Belt Buckle

By choosing the rear left seat belt buckle for the Mercedes X164, you get a part that is compliant with factory specifications, ready to integrate with your existing belt system and vehicle interior. This solution allows you to restore full functionality to the rear seating position without compromising on fit and ergonomics.

If you need other parts from the seat belts and parts category dedicated to this brand, check out the Mercedes Seat Belts and Parts available in our store to complete the entire system according to manufacturer requirements.

More About Choosing Original and Used Parts

When selecting components such as seat belt buckles, it is worth consciously comparing the advantages of original, aftermarket, and used parts. Differences in cost, manufacturing quality, and fit for a specific model directly impact the safety and durability of the repair. If you want to better understand these aspects, check out the article Original, Aftermarket, or Used – Which Car Parts Are Most Cost-Effective?, where you will find practical comparisons and answers to common driver questions.