Original BMW Titan Bulb Socket, Left Side, Fender Tail Lamp, BMW E46 323i, 325i, 325xi, 328i, 330i, and 330xi (1999–2002)

This Original BMW left bulb socket holds the bulbs for the fender-mounted tail light on the E46 323i, 325i, 325xi, 328i, 330i, and 330xi from 1999–2002. BMW names the part "Bulb socket, left" and gives this version a Titan designation in its parts data. A tail light bulb carrier is the part that holds the bulbs in the back of the lamp housing. It holds each bulb behind its section of the lens and carries current from the harness to the bulb contacts. BMW began producing this number in October 2004, and the part is made in Hungary. It is sold individually, as one piece.

Original BMW Parts carry a 24-month parts warranty.

Part number 63-21-7-165-955 replaces the earlier 63-21-8-364-925. BMW marks the change as retrospective, which means the current number also fits cars that were built with the earlier carrier. BMW identifies this socket as the left-hand part only, so a car that needs both sides needs the matching right-hand carrier as well. The carrier fits the fender section of the tail light, so match it to the lamp that is actually failing.

Technical Details

• Manufacturer: BMW (Original BMW Parts)
• Part number: 63-21-7-165-955
• BMW part name: Bulb socket, left
• Variant designation: Titan
• Position: left fender-mounted tail light
• Replaces: 63-21-8-364-925 (interchangeable retrospectively)
• Production start: October 2004
• Country of manufacture: Hungary
• Sold as: one piece
• Warranty: 24 months

Common Questions

Does this replace part number 63-21-8-364-925?
Yes. BMW superseded 63-21-8-364-925 with this number and marks the change as retrospective, so it fits cars built with the earlier part.

Which side does this carrier fit?
BMW specifies this number for the left side. The right-hand carrier is a separate part.

Where is this part made?
This Original BMW carrier is made in Hungary.

PMB Performance can help you match the correct tail light parts to your E46.

Fitment & Compatibility

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