BMW 7 Series E66 Rear Left N/S Door Window Frame Trim Cover Black 8223777

BMW 7 Series E66 Rear Left N/S Door Window Frame Trim Cover is an original body component from the Doors and door panels category, designed for the rear left section of the vehicle body. The black frame guides and supports the window, stabilizing its position relative to the door and seals, which ensures the correct operation of the lifting mechanism and cabin tightness.

Specifications and technical data

• SKU: 8223777
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8223777
• Substitutable numbers: 51358223777, 8223777, AS
• Location on the vehicle: Rear, Left
• Color: Black
• Category: Doors & Door Skins

Purpose and function of the component

The rear left door frame in the BMW 7 Series E66 is responsible for the precise guidance of the window within the door plane and the proper positioning of seals at the contact point with the body. This component:

• stabilizes the window during opening and closing,
• reduces vibrations and unwanted play in the guides,
• supports acoustic tightness and reduces wind noise,
• ensures even adhesion of the window to the seals.

This maintains the correct door geometry, and the operation of the window lifting mechanism remains smooth and predictable.

Construction, color, and fitment

The presented frame is tailored to the rear left side of the vehicle, which eliminates the need for any mounting modifications in this area. The construction was designed for the specific dimensions of the BMW E66 door opening, ensuring proper fitment with the door skin, window, and factory mounts.

The black color of the component is visually neutral and consistent with the factory styling of the door frames in this model. This facilitates integration with existing seals, moldings, and other door components without the need for additional color matching.

Characteristics of the used part

As a used part, the door frame comes from vehicle dismantling and retains the original geometry and mounting points specified by the manufacturer. In practice, this means:

• factory fitment to the BMW E66 door structure,
• no need to modify mounting holes,
• maintained compatibility with standard window guides and seals.

A used OEM component is often a beneficial choice for body repairs, as it allows for the restoration of the original door and window fitment without the risk of dimensional differences typical of many aftermarket replacements.

Benefits of using an original door frame

Using an original rear left frame in the BMW E66 translates into several practical operational benefits:

• Stable window operation – proper guidance minimizes the risk of jamming, tilting, or excessive play.
• Better cabin tightness – correct positioning of the window relative to the seals reduces air drafts and noise at higher speeds.
• Visual consistency – the black frame harmoniously blends with other door elements, maintaining the aesthetics of the side of the body.
• Restoration of factory assembly – original geometry facilitates service work and shortens repair time.

For users who want to keep their BMW 7 Series E66 in a condition close to factory, choosing such a component is a technically safe and predictable solution.

BMW Doors and door panels – expansion and repairs

If you are planning a comprehensive repair or upgrade of the door area in your BMW and need other elements from the same group, such as skins, reinforcements, or additional profiles, check out the available parts in the BMW Doors and door panels category.

To better assess when it is worth choosing an original component from dismantling instead of a new replacement, a practical guide describing specific selection criteria may be helpful – you can find it in the article 5 reasons why a used OEM part is a better choice than a replacement.