Ford Transit Mk7 Fog Light Flasher Lamp Bulb Holder Lamp Socket 21 Watt 4053872

Ford Transit Mk7 Fog Light Flasher Lamp Bulb Holder Lamp Socket 21 Watt is an original component from the Front lights group, designed for installation in the factory fog light assembly. This used, tested socket allows for trouble-free seating of the 21W bulb and ensures a stable electrical connection within the front lighting system.

Specifications and technical data

• SKU: 4053872
• Mark: Ford
• Condition: Used
• OEM Part Number: 4053872
• Substitutable numbers: 4053872, XS41-13K370-AC, XS4113K370AC
• Category: Headlight Assemblies

Purpose and technical function

The fog light bulb socket is responsible for securely mounting the bulb in the headlight and for the safe transmission of power from the electrical harness. In the Ford Transit Mk7, this is a crucial component for the proper operation of the front fog lights, which improve visibility in difficult weather conditions, such as fog, heavy rain, or snow. Thanks to a design tailored to a specific type of lamp, the socket ensures the correct positioning of the filament relative to the reflector, which translates into uniform light distribution and reduces glare for other road users.

Construction and compatibility

The presented socket has been designed as a component dedicated to the front fog light in the Ford Transit Mk7. This means:

• factory fitment for the socket in the fog lamp housing,
• designed for a specific type of 21W bulb,
• electrical connector prepared for compatibility with the vehicle's installation. Such a solution facilitates installation and reduces the risk of looseness, overheating of contacts, or improper illumination. The original Ford brand origin helps maintain consistency with other components of the lighting system.

Condition of the item and benefits of choosing a used part

The socket is offered as a used part, which allows for combining reasonable cost with the preservation of the manufacturer's original design. This type of component, when used correctly, does not wear out as quickly as mechanical parts, which is why a used socket can still meet the requirements for electrical conductivity and stable bulb mounting. Choosing an original, used socket is particularly beneficial in the case of spot repairs, where only the bulb socket element has been damaged, while the rest of the lamp remains in good technical condition.

Safety and operation

A properly selected fog light bulb socket is important for driving safety – it eliminates the risk of circuit interruption, light flickering, or contact overheating. A stable electrical connection limits the possibility of local burnouts and harness damage, and correct bulb seating promotes the maintenance of the proper luminous flux. During installation, it is recommended to pay attention to the condition of the connectors, the cleanliness of the contacts, and the correct routing of the wires to fully utilize the potential of this part in the daily operation of the vehicle.

Expanding the lighting system in a Ford

If you are planning a comprehensive repair or upgrade of the front lighting zone in your Ford and need other components from the same group, such as lamps, turn signals, or additional lighting modules, check the available parts in the Ford Front lights category. To better evaluate the cost-effectiveness of using aftermarket components in your car, including other sub-assemblies, it is worth reading the expert guide on our blog: Why it is worth buying used gearboxes and engines – facts instead of myths.