Ford C-Max Mk2 Front Door Inner Seal Weatherstrip Left N/S 1744648

Ford C-Max Mk2 Front Door Inner Seal Weatherstrip Left N/S is an original body component designed for installation on the driver's side. It ensures a tight seal between the door and the body, improving acoustic insulation, water protection, and window operation stability. It is a practical solution for users who want to restore factory door operating conditions in a technically correct manner.

Specifications and technical data

• SKU: 1744648
• Mark: Ford
• Condition: Used
• OEM Part Number: 1744648
• Substitutable numbers: 1744648, AM51-U20571-AE, AM51U20571AE
• Location on the vehicle: Front, Left
• Part type: Inner Beltline Seal
• Category: Window Seals, Gaskets & Trims

Purpose and function in the vehicle

The presented seal belongs to the Window seals and trims group and is matched to the front left door of the second-generation Ford C-Max. It is mounted on the inner side of the door opening, where it is responsible for:

• limiting the ingress of water and moisture into the door interior and cabin,
• reducing wind noise at higher speeds,
• stable window guidance in its extreme position,
• protecting sheet metal edges and upholstery from abrasion. Thanks to its proper profile and fit for the specific body model, the seal allows for maintaining the factory geometry of the door-to-body fit, which is important for both driving comfort and the durability of door components.

Original origin and fit for Ford C-Max Mk2

The seal was designed by the vehicle manufacturer specifically for the second-generation Ford C-Max, which translates into a precise fit with the door frame and body pillar. The original cross-section geometry and length of the component facilitate installation and minimize the risk of leaks in critical areas, such as the upper door edge or the A-pillar area. Compared to universal replacements, the factory inner seal ensures stable seating in the factory mounting points, which reduces the need for additional modifications and allows for predictable door behavior during repeated opening and closing.

Characteristics of the used component

The offered item is a used part, sourced from dismantling, which allows for combining reasonable repair costs with maintaining the manufacturer's original specifications. Seals of this type, when installed correctly, retain their functional properties for a long time, ensuring proper pressure against the door and body edges. Choosing an original seal from dismantling is particularly beneficial in situations where you want to maintain material consistency with other door components and ensure compatibility with factory window guides and upholstery.

Benefits of using an original door seal

Using a dedicated inner seal in the Ford C-Max Mk2 brings a number of practical benefits:

• Better cabin insulation – reduction of wind noise and outside sounds.
• Protection against water and dirt – reduced risk of moisture affecting upholstery and electrical components in the door.
• Stable window guidance – improvement of the window lifting mechanism operation and reduction of play.
• Consistency with factory construction – no need to adjust universal profiles or cut to length. This approach is particularly important for post-collision repairs, door replacements, or long-term operation when the original seal has lost its elasticity.

Related components and technical knowledge

If you are planning a comprehensive repair or upgrade of the door and side window area in your Ford and need other components from the same group, such as additional window frame seals, trim strips, or window guides, check the available parts in the Ford window seals and trims category. When performing body and door repairs, there is often a parallel need to optimize costs in other vehicle systems, e.g., fuel supply. In such a situation, it is worth reading the guide on the safe selection of used fuel system components: Fuel dosing problems – what to look for when buying a used injection pump and fuel rails. If you are interested in a broader context of using original parts from dismantling and want to better understand why such components often provide a more stable fit than cheap replacements, the following article will be helpful: Why original parts from dismantling fit better than cheap equivalents.