Ford S-Max Window Glass Rear Door Left N/S Tinted Glazing AS3 7M21-R25713-BB

Visual condition of the part

The product shows signs of use visible in the photos.

Ford S-Max Window Glass Rear Door Left N/S Tinted Glazing is an original component from the Car windows group, designed for installation in the rear left door of the vehicle. The AS3 standard tinted glass provides increased optical comfort for passengers and improves interior protection against excessive heating.

Specifications and technical data

• SKU: 7M21-R25713-BB
• Mark: Ford
• Condition: Used
• OEM Part Number: 7M21-R25713-BB
• Substitutable numbers: 7M21-R25713-BB, 7M21R25713BB
• Location on the vehicle: Rear, Left
• Category: Car Glass

Purpose and fitment for Ford S-Max

The presented glass has been designed specifically for the rear left body area of the Ford S-Max, taking into account factory mounting points and door geometry. This ensures proper glass guidance in the channels, sealing against weatherstrips, and correct operation with the window lifting mechanism.

Placement on the vehicle in the rear left door area allows for precise replacement of damaged glass without interfering with other body components. This solution is particularly beneficial for post-accident repairs and when replacing scratched or dull glass.

Characteristics of AS3 tinted glass

AS3 standard glass is a tinted side window that limits the penetration of light and solar radiation into the cabin. In practice, this means:

• increased thermal comfort for passengers in the rear of the vehicle,
• better protection of upholstery and interior elements against fading,
• a more discreet passenger and luggage space.

Additionally, tinted glass improves the visual consistency of the side body line, which is particularly important when maintaining the original look of the Ford S-Max after repair.

Benefits of using original Ford glass

The original rear left door glass ensures the maintenance of factory vehicle parameters in terms of safety, ergonomics, and acoustics. Precise fitment to the door frame reduces the risk of wind noise while driving and leaks during heavy rain.

Choosing an item from the Car windows group dedicated to a specific Ford model translates into:

• stable operation of the window lifting and lowering mechanism,
• proper adhesion to seals and trim strips,
• maintenance of the factory line of sight for the driver and passengers.

Used condition – a practical approach to repair

A used component is a sensible choice for maintenance and post-accident repairs when the priority is combining quality with cost control. The original glass from disassembly retains factory fitment parameters while allowing for reduced expenses compared to new components.

Such a solution is particularly beneficial for comprehensive repairs of the side body section, where several elements are replaced simultaneously (glass, seals, lifting mechanism).

Repair expansion – other windows for Ford

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

More about the trend for original used parts

More and more users are opting for original components from disassembly, especially in situations of limited availability of new parts or rising service costs. If you want to better understand why the market for used OEM components is growing dynamically and how to consciously choose such solutions, read the article: Crisis in the new parts market? Why used originals for premium cars are the hottest trend in 2026.