BMW 1 Series F20 F21 Boot Lid Tailgate Strut Mount Bracket Left N/S 7239873

BMW 1 Series F20 F21 Boot Lid Tailgate Strut Mount Bracket Left N/S is an original body component from the Boot lids and tailgates group, designed for precise support of the tailgate strut in 1 Series models. It ensures stable operation of the lifting mechanism, which translates into predictable tailgate performance and reduces unwanted stress on the bodywork.

Specifications and technical data

• SKU: 7239873
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7239873
• Substitutable numbers: 51247239873, 7239873
• Location on the vehicle: Left
• Category: Boot & Hatch Lids

Purpose and function of the component

The tailgate strut mount bracket is responsible for the rigid seating of the strut in the body structure on the left side. A properly selected and installed component:

• maintains the correct operating geometry of the strut when opening and closing the tailgate,
• limits the transfer of loads to other parts of the bodywork,
• reduces the risk of play, rattling, and uncontrolled tailgate dropping.

Thanks to this, the tailgate lifting system operates predictably, and forces are distributed in accordance with the manufacturer's design assumptions.

Compatibility with BMW F20 / F21

The presented mount has been designed specifically for the BMW 1 Series F20 and F21 body styles, taking into account the characteristic design of the rear part of the vehicle. Proper profiling and mounting points allow for:

• seamless fitment with factory mounting holes,
• correct alignment of the strut operating axis relative to the tailgate hinges,
• maintaining the factory line and operation of the tailgate without the need for modifications.

Such fitment is particularly important when replacing a damaged component after a collision or intensive use.

Characteristics and advantages of use

As a bodywork component, the tailgate strut mount bracket operates in an area exposed to cyclic loads and temperature changes. Using an original BMW solution allows you to maintain:

• structural integrity of the rear part of the body,
• proper cooperation with the factory tailgate strut,
• adequate stiffness of connections in the area of hinges and mounts.

For the user, this means more predictable tailgate operation, a lower risk of strut damage, and a reduced need for re-adjustments after installation.

Condition and service application

The component comes from dismantling and is intended for service applications in BMW vehicles where the original mount has been damaged or has suffered excessive wear. Replacing this component is recommended wherever there are visible deformations, cracks, or problems with the smooth operation of the tailgate on the left side.

Expansion of the tailgate system in BMW

If you are planning a comprehensive repair or upgrade of the tailgate area in your BMW and need other components from the same group, such as hinges, struts, or additional mounts, check the available parts in the BMW Boot lids and tailgates category.

For owners of newer BMW models interested in a broader approach to service and system upgrades in their cars, our guide on the B58 unit and accessories for the 3 Series may be helpful – you can find it in the article BMW B58 Code – checklist before buying a turbocharger and intercooler for the BMW 3 Series (G20), which shows how to consciously select components based on technical data and compatibility.