BMW 3 Series F30 F80 M3 Left N/S Trunk Lid Boot Tailgate Hinge Arm White 668

BMW 3 Series F30 F80 M3 Left N/S Trunk Lid Boot Tailgate Hinge Arm White 668 is an original body component designed for precise operation with the trunk lid in BMW sports models. The robust construction of the arm, matched to factory mounting points, ensures stable guidance of the lid and repeatable geometry for opening and closing. Thanks to the retention of the correct body color Schwarz 2 - 668, the component integrates well with the body line.

Specifications and technical data

• SKU: 7420781
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7420781
• Substitutable numbers: 7420781, 7 420 781
• Location on the vehicle: Left
• Part type: Boot Hinge
• Color: Schwarz 2 - 668
• Category: Lift Supports, Latches, Hinges & Additional Parts

Purpose and technical function

The presented trunk lid hinge arm is designed for installation on the left side of the vehicle, in the rear bodywork area. It is responsible for guiding the lid along a set path, transferring loads during opening and closing, and maintaining proper alignment with the fenders and bumper. The component works with the lid lifting system (gas springs, actuators, or other mechanisms, depending on the car configuration), serving as a vital link in the entire system. A correctly selected hinge reduces stress on the lid skin, minimizes the risk of misalignment, and affects the durability of the paint in contact areas.

Construction, color, and fitment

The hinge belongs to the Gas springs, locks, hinges, and other parts group, meaning it has been constructed to work with factory mounting and securing elements for the lid. The geometry of the arm is adapted to the body structure of the BMW 3 Series F30 and F80 M3 generations, which facilitates installation and allows for maintaining factory gaps between body panels. The finish in the Schwarz 2 - 668 shade allows for aesthetic matching to a body in this color without the need for immediate painting. In the case of other paint configurations, the component can serve as a good base for preparation for repainting, while maintaining the correct structure and shape.

Condition, origin, and benefits of use

The hinge arm comes from the BMW range and is an OEM segment part, which translates into factory fitment to the body structure and compatibility with original mounting points. As a used component, the hinge allows for an economical repair of the rear of the vehicle while maintaining the manufacturer's original specifications. Choosing an original used trunk lid hinge is particularly beneficial for post-accident repairs or replacement after operational damage, as it enables the preservation of the factory body geometry and minimizes the risk of problems with closing the lid, leaks, or improper seal adhesion.

Installation and service application

The component is intended for direct installation in factory mounting points, which simplifies service work and shortens repair time. In practice, the hinge arm is used in situations such as:

• replacement after mechanical damage to the lid or the rear part of the body,
• repair after a collision involving damage to the hinge geometry,
• elimination of problems with uneven opening or closing of the trunk lid. During installation, it is recommended to check the cooperating components – gas springs, locks, and mounts – to ensure even operation of the entire system and avoid re-stressing the newly installed arm. If you are planning a comprehensive repair or upgrade of the rear body area in your BMW and need other elements from the same group, such as additional hinge arms, trunk locks, or brackets cooperating with the lifting mechanism, check the available parts in the Gas springs, locks, hinges, and other BMW parts category.

How to care for a used trunk lid hinge

To extend the service life of a used trunk lid hinge, it is worth periodically checking the condition of the mounting points, anti-corrosion protection, and cooperation with lifting elements. Regular removal of contaminants from the hinge area and checking for operating play reduce the risk of accelerated wear. Practical tips regarding the operation and maintenance of used body, suspension, or auxiliary system components can be found in the article How to extend the service life of used car parts?, which describes proven methods for taking care of components sourced from dismantling. For those planning to repair a car after a collision, including restoring full functionality to the rear of the body using original used components, the guide Repairing a car after a crash: how to restore full efficiency using used originals and not overpay? may also be helpful, as it discusses the advantages of using second-hand OEM parts in the context of safety and service cost-effectiveness.