BMW 3 4 F30 F32 Left N/S Trunk Lid Boot Tailgate Hinge Arm Black Sapphire 475

BMW 3 4 F30 F32 Left N/S Trunk Lid Boot Tailgate Hinge Arm Black Sapphire is an original body component designed for precise operation of the trunk lid in F-series models. This used hinge in Black Sapphire Metallic ensures factory-standard lid guidance, maintaining the proper geometry and stability of the entire mechanism. It is a practical solution for accident repairs, replacing worn-out components, or restoring full functionality to the rear of the vehicle.

Specifications and technical data

• SKU: 7420783-BS
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7420783
• Substitutable numbers: 41007420783, 7420783, 41007286957, 7286957, 41007298067, 7298067, 7420781, EM
• Location on the vehicle: Left
• Color: Black Sapphire Metallic - 475
• Category: Boot & Hatch Lids

Purpose and function of the hinge

The presented hinge is a component from the Trunk lids and rear parts group, responsible for stable mounting and smooth opening and closing of the trunk lid. Mounted on the left side of the vehicle, it works in conjunction with the right hinge and gas struts, bearing the loads resulting from the weight of the lid and daily use. Thanks to its factory-original construction, it ensures proper fitment with the bodywork, which reduces the risk of stress, squeaking, or improper closing.

Color and paint matching

The hinge is factory-painted in the Black Sapphire Metallic - 475 shade, which is significant for both aesthetic and practical reasons. For repairs where the structural part of the hinge is visible, color consistency with the bodywork makes it easier to maintain a cohesive look for the rear of the vehicle. For body shops, this means a smaller scope of additional paint work or the possibility of limiting it to local touch-ups.

Vehicle placement and installation aspects

The hinge is designed for installation on the left side of the trunk lid, which is important when selecting parts for one-sided damage. The OEM design allows for installation at factory mounting points while maintaining the original opening kinematics. In workshop practice, this translates into:

• easier adjustment of gaps between the lid and the fenders and bumper,
• proper cooperation with the lock and opening limiters,
• stable lid guidance without excessive play.

Characteristics of the used component

As a used component, the trunk lid hinge provides an economical alternative to a new part while maintaining the manufacturer's original design. This solution is often chosen for accident repairs where combining proper functionality with cost control is key. A used hinge allows for restoring the correct operation of the trunk lid without interfering with the body geometry and without the need to use aftermarket replacements with uncertain parameters.

Integration with the BMW rear body section

The original hinge works with other elements of the BMW rear body section, such as the lid, seals, gas struts, and the lock. By maintaining factory mounting points and appropriate structural rigidity, it is possible to achieve a repeatable movement path for the lid, which is important for trunk sealing and user comfort. This is particularly significant in vehicles used daily, where the lid is opened and closed frequently.

If you are planning a comprehensive repair or upgrade of the rear body section of your BMW and need other components from the same group, such as hinges, mounts, or complete trunk lids, check the available parts in the BMW trunk lids and rear parts category.

For users who are simultaneously working on the braking system and considering the use of second-hand components, a guide describing the selection of second-hand parts may be helpful – detailed tips can be found in the article Second-hand braking system: how to safely select discs, calipers, and ABS?.