Original BMW E36 3 Series Rear Lamp Bulb Carrier for 318i, 318is, 323i, 323is, 325i, 325is, 328i, 328is, and M3 (1992–1999)

BMW bulb socket 63-21-1-387-697 is the Original BMW tail light bulb carrier that holds a bulb in the rear lamp of the E36 3 Series, covering the 318i, 323i, 325i, 328i, and M3 from 1992 to 1999. Its job is to secure the bulb in the tail light assembly and carry current to it through metal contacts. Over time those contacts can corrode, which stops the bulb from getting a good connection and leaves the light dim or dark. A fresh socket restores clean contact for the bulb. The part weighs about 12 g, is made in Italy, and BMW shows production starting in July 1991.

Original BMW Parts carry a 24-month parts warranty.

Moisture inside the lamp housing is the usual reason contacts corrode, so look for water or condensation behind the lens when you replace a socket. A cracked lens lets water and dirt in and should be addressed at the same time. In BMW's parts data this socket spans the E36 sedan, coupe, and convertible with the M42, M44, M50, and M52 four- and six-cylinder engines and the S50 and S52 M3 engines. It is priced each and sold individually, so count the sockets you need before ordering.

Technical Details

• Manufacturer: BMW (Genuine)
• Part number: 63-21-1-387-697
• BMW part name: Bulb socket
• Position: tail light assembly
• Weight: approximately 12 g (0.42 oz)
• Production start: July 1991
• Made in Italy
• Sold individually
• Warranty: 24-month parts warranty on Original BMW Parts

Common Questions

Why would a tail light bulb not light even with a new bulb?
Corroded contacts in the socket can block the connection to the bulb, and replacing the socket restores it.

Is this sold in pairs?
No. It is priced each and sold individually.

Where is it made?
This Genuine BMW socket is made in Italy.

Fitment & Compatibility

Confirm your model year and submodel against the table below before ordering. PMB Performance can confirm this against your VIN, backed by more than 20 years of parts and fitment work.