Bulb Socket BMW F30 F31 E61 F11 LCI Z4 E85 Rear Lamp Trunk Lid H21W 7407330

Bulb Socket BMW F30 F31 E61 F11 LCI Z4 E85 Rear Lamp Trunk Lid H21W is a precision component of the rear lighting system, designed for installation in the luggage compartment area. Thanks to its factory-engineered design for specific BMW series, it ensures secure bulb seating, a stable electrical connection, and proper operation of the trunk lighting in the rear of the vehicle.

Specifications and technical data

• SKU: 7407330
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7407330
• Substitutable numbers: 7407330, 63117407330, 6916468, 63216916468, 156 240-00, 15624000
• Location on the vehicle: Rear
• Category: Rear Light Assemblies

Purpose and function in the lighting system

The presented bulb socket is a component of the Rear lights and brake lights category, operating in the rear body zone, in the trunk area. It is responsible for:

• mechanically holding the H21W type bulb in the trunk lamp,
• ensuring a stable electrical contact with the vehicle's wiring,
• safely transmitting power to the light source when opening the trunk lid.

This solution allows for maintaining clear illumination of the cargo area, which improves daily usability and makes it easier to use the trunk after dark.

Compatibility with BMW models

The socket has been designed for selected BMW models, including the F30, F31, F11 LCI, and Z4 E85 series, where it works with the rear trunk lamp. The design based on an OEM solution guarantees:

• proper fitment to the lamp housing in the rear of the body,
• compatibility with the factory electrical harness,
• preservation of the original trunk lighting functionality.

As a result, this component can be used both when replacing a damaged socket and when restoring the lighting system's efficiency after bodywork repairs.

Technical characteristics and installation

The H21W trunk lamp bulb socket is intended for installation in the rear of the vehicle, in the immediate vicinity of the trunk lamp. The design provides for:

• dedicated mounting in the lamp housing,
• a connector adapted to the BMW electrical installation,
• support for a specific H21W base type bulb.

This solution facilitates efficient installation without modifying the wiring, which is important both in specialized service centers and for repairs in workshop conditions.

Component condition and service application

The offered socket comes from the group of used BMW parts, which allows for an economical repair of the rear lighting system while maintaining the original design. This is a practical solution in situations where:

• the socket has been damaged due to bulb overheating or contact corrosion,
• the trunk lamp was replaced after a collision and it is necessary to match the correct component,
• intermittent trunk lighting failures occur due to looseness or a break in the contact.

Using an original solution from the same model group promotes maintaining the consistency of the electrical system and reduces the risk of compatibility issues.

Expansion of the BMW lighting system

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your BMW and need other components from the same group, such as combination lamps, light modules, or additional housings, check the available parts in the BMW rear lights and brake lights category.

For users interested in a broader approach to vehicle operation and maintenance, including the impact of operating temperature on component durability, the guide article on the engine cooling system, overheating, and the role of used radiators may be helpful, as it shows how proper diagnostics and part selection affect the lifespan of the entire car.