Ford Focus Mk2 Door Window Glass Glazing Front Left N/S AS2 4M51-A21411-AE

Ford Focus Mk2 Door Window Glass Glazing Front Left N/S is an original component from the Car Windows category, designed for installation on the driver's side. It ensures proper clarity, a perfect fit to the door frame, and compatibility with the factory window regulator mechanism, which translates into trouble-free operation and safe visibility.

Specifications and technical data

• SKU: 4M51-A21411-AE
• Mark: Ford
• Condition: Used
• OEM Part Number: 4M51-A21411-AE
• Substitutable numbers: 4M51-A21411-AE, 4M51A21411AE, 1342624
• Location on the vehicle: Front, Left
• Category: Car Glass

Purpose and fitment

The presented window glass is designed for installation in the front left door of a Ford Focus Mk2, maintaining the factory geometry and glass thickness. Its placement in the front driver's side zone guarantees correct interaction with the guides, seals, and the stock window regulator, without the need for modifications or forced fitting.

By maintaining the original body line, the glass does not cause stress on the door frame, minimizes the risk of leaks, and reduces wind noise while driving. This is a practical solution for replacement after a collision, mechanical damage, or glass breakage.

Technical characteristics of the glass

The AS2 type glass used in this model ensures the appropriate level of light transmission and meets the required safety standards for side windows. The laminated and tempered construction (in accordance with the standard for this type of component) increases resistance to stone chips and reduces the risk of sharp shards in the event of damage.

The properly profiled edges of the glass work with the factory seals, which helps maintain body tightness and improves acoustic comfort inside the vehicle. This is particularly important during daily use of the car in city traffic and on the highway.

Condition and benefits of choosing a used part

The item comes from the secondary market, which allows you to combine savings with maintaining the manufacturer's original specifications. A used door window is a sensible choice for post-accident repairs when you care about a factory fit while wanting to reduce costs compared to a new replacement.

By choosing original glass from dismantling, you gain:

• factory fitment for the Ford Focus Mk2 body,
• preservation of the stock optical and acoustic characteristics,
• possibility of installation without additional modifications.

Installation and maintenance tips

When replacing the glass in the front door, it is recommended to check the condition of the guides, seals, and the lifting mechanism. Correct installation, maintaining the alignment of the glass relative to the door frame, reduces the risk of scratches and ensures smooth operation of the window throughout its entire range of motion. It is also worth paying attention to the proper pressing of the seals to maintain body tightness and avoid air noise.

If you want to be sure that you are choosing the right component for your specific car based on the OEM number or vehicle data, a detailed guide will be helpful – check the Guide: how to choose the right car part by VIN and OEM number, where you will find practical tips and a list of check questions for the seller.

Expanding repairs within Ford side windows

If you are planning a comprehensive repair or upgrade of the side glazing area in your Ford and need other components from the same group, such as side door windows, quarter glass, or additional glazing, check the available parts in the Ford Car Windows category.