Original BMW Tail Light Bulb with Socket for BMW X4 F26 (2015–2018)

Sold as one assembled unit, this Original BMW tail light bulb with socket replaces the lamp and its holder together in the rear lighting of the F26 BMW X4. BMW names the part a bulb with socket, and the specialist description identifies it as a tail light bulb with holder. Because the socket comes with the bulb, a corroded or heat-damaged holder is replaced at the same time as the lamp. BMW shows production of this number starting in July 2017, and the part is made in Poland. A tail light bulb lights the rear lamps so drivers behind can see the car and read its signals when braking or turning.

Original BMW Parts carry a 24-month parts warranty.

BMW applies this number across the F26 X4 range, covering the xDrive28i with the N20 four-cylinder, the xDrive35i and M40i with the N55 six-cylinder, and the 20d, 30d and 35d diesel versions. Moisture inside the lamp is a common cause of bulb trouble, since water reaching the electrical contacts corrodes them and wiring. If you see condensation behind the lens or a cracked housing, deal with the lamp itself, or a new bulb may fail again.

Technical Details

• Manufacturer: BMW, Original BMW part made in Poland
• Part number: 63-21-7-954-459
• BMW part name: bulb with socket
• Position: tail light
• Production start: July 2017
• Chassis: F26 X4
• Sold individually as a bulb and socket unit
• Warranty: 24 months on Original BMW Parts

Common Questions

Does this include the socket or only the bulb?
It includes both. BMW supplies the bulb already fitted in its socket.

Will it fit an X3 or a G02 X4?
No. BMW applies it to the F26 X4 only.

PMB carries Original BMW lighting parts for current and recent models.

Fitment & Compatibility

Use the fitment table below to confirm year, model, submodel, and application notes before ordering. PMB Performance has spent over 20 years matching parts to vehicles and can verify this against your VIN.