BMW MINI Cooper One R50 R53 S Bulb Socket Rear Holder Light Left N/S 7165731

BMW MINI Cooper One R50 R53 S Bulb Socket Rear Holder Light Left N/S is an original rear lighting system component designed for installation on the left rear side of the vehicle. It ensures stable bulb seating in the lamp, proper electrical connection, and reliable operation of brake and tail light functions. Thanks to its factory-fit design for Mini R50/R53 models, this bulb holder allows for an efficient, technically correct replacement of a damaged socket without the need for wiring modifications.

Specifications and technical data

• SKU: 7165731
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7165731
• Substitutable numbers: 63217165731, 7165731, EM
• Location on the vehicle: Rear, Left
• Category: Centre & Third Brake Light Assemblies

Purpose and function in the lighting system

The presented bulb socket is a component of the Main and center brake lights category, responsible for the proper operation of the left rear lamp. Its tasks include:

• maintaining bulbs in a stable position inside the lamp,
• ensuring a secure electrical contact with the vehicle's wiring,
• transmitting signals from the electrical system to the brake and tail light bulbs,
• reducing the risk of flickering, lighting interruptions, or contact overheating.

Due to its dedicated placement in the rear left part of the body, the bulb holder works with the original housing, maintaining the factory geometry and sealing of the entire assembly.

Construction and fitment for Mini R50/R53

The left rear bulb socket has been designed specifically for the construction of rear lamps in the Mini R50 and R53. This means that:

• the arrangement of bulb sockets corresponds to the lamp chamber layout,
• mounting points are compatible with the factory housing,
• the electrical connector fits the original wiring harness without the need for soldering or custom adapters.

Such fitment facilitates installation and reduces the risk of errors, which is particularly important for components responsible for vehicle safety and visibility on the road.

Benefits of using an original bulb holder

Using a dedicated bulb holder in the Mini R50/R53 brings a number of practical benefits:

• Stable brake light operation – proper current flow and secure contacts minimize the risk of light failure during braking.
• Consistency with the factory installation – no need to modify the wiring or lamp housing.
• Easier diagnostics – in case of lighting faults, it is possible to clearly rule out or confirm damage to the holder.
• Hassle-free installation in the rear left zone – design intended for a specific vehicle location.

For workshops and users, this means faster replacement, lower risk of complaints, and adherence to factory Mini standards.

Component condition and service application

The offered bulb holder is a used part, which allows for an economical repair of the lighting system while maintaining the manufacturer's original specifications. This type of component is particularly useful in situations where:

• overheating or melting of the bulb sockets has occurred,
• problems with circuit interruptions and unstable lighting have appeared,
• it is necessary to replace only the holder without interfering with the entire lamp.

Choosing an original bulb socket for the Mini R50/R53 helps maintain the technical integrity of the vehicle and allows for precise, predictable repairs in a workshop environment.

Repair expansion and additional information

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your Mini and need other elements from the same group, such as additional bulb holders, housings, or complete light modules, check the available parts in the Main and center brake lights Mini category.

To better plan your service and reduce vehicle downtime in the workshop, it is worth checking out the guide on used OEM components – you will find practical tips in the article Availability of car parts off-the-shelf vs. repair time – how do used OEM parts shorten workshop stays?.