Volkswagen Golf Mk4 Rear Tail Light Bulb Socket Left Right N/O/S 1J6945257

Volkswagen Golf Mk4 Rear Tail Light Bulb Socket Left Right is an original component from the Rear lights and brake lights group, designed for installation in the rear body section. The socket ensures stable bulb seating, proper contact guidance, and a secure connection to the vehicle's electrical system, which translates into clear light signals and compliance with road traffic regulations.

Specifications and technical data

• SKU: 1J6945257
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 1J6945257
• Substitutable numbers: 1J6945257, 1J6 945 257
• Location on the vehicle: Rear, Right, Left
• Part type: Rear Light Assembly
• Category: Rear Light Assemblies

Purpose and vehicle placement

The bulb socket is designed for installation in the Volkswagen rear lamp, with the possibility of use on both the left and right sides. This solution facilitates vehicle maintenance – one type of component can serve both sides, which simplifies part selection and reduces the risk of ordering errors. Its placement in the rear body zone means the component is responsible for the proper operation of position lights, brake lights, turn signals, or reversing lights – depending on the lamp configuration in a given vehicle. A correctly selected socket supports the stable operation of the entire rear lighting assembly.

Construction and technical function

The bulb socket acts as a carrier for several light points in a single lamp, integrating bulb holders and electrical contacts into one module. Thanks to this:

• it ensures secure guidance of bulbs in their proper operating positions,
• it maintains proper electrical contact with the vehicle's wiring harness,
• it reduces the risk of looseness, light flickering, and contact overheating,
• it facilitates the removal and replacement of bulbs during standard service. The original Volkswagen solution is designed for compatibility with the specific geometry of the rear lamp in the fourth-generation Golf, which translates into proper fitment with the lamp lens and housing.

Benefits of using an original socket

Using a factory bulb socket in a Golf Mk4 allows for maintaining the consistency of the electrical system and the lighting parameters specified by the manufacturer. Key advantages include:

• Precise fit to the rear lamp – no need for alterations, drilling, or wiring modifications.
• Stable lighting operation – correct bulb seating reduces the risk of burnouts resulting from improper contact.
• Easier fault diagnostics – the modular design of the socket makes it easier to locate rear lighting problems.
• Consistency with other Volkswagen lighting system components.

Condition and service application

The item is a removed part intended for service applications in vehicles where the original socket has been damaged, contacts have burned out, or there are issues with holding bulbs in the socket. Replacing the socket is often an effective way to eliminate faults such as: intermittently failing brake lights, non-functioning turn signals, or lighting error messages. During installation, it is recommended to check the condition of the wiring connectors and the lamp lens to ensure proper sealing and protection against moisture, which extends the service life of the entire rear lighting system.

Complementary Volkswagen rear lighting components

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

Technical support for purchasing used components

When selecting used lighting components and other electrical parts, it is worth following proven procedures for assessing technical condition. To expand your knowledge on safely purchasing components from the secondary market, you can use the advice contained in the article Buying a used engine: 5 things you must check before installation, which discusses universal principles for verifying used parts.