Original BMW Tail Light Bulb Socket for E36 318i, 318is, 323i, 323is, 325i, 325is, 328i, 328is, and M3 (1992–1999)

Built for the E36 3 Series, the Original BMW bulb socket 63-21-1-387-655 holds a tail light bulb and makes its electrical contact on the 318i, 318is, 323i, 323is, 325i, 325is, 328i, 328is, and M3. A bulb socket is the small holder the bulb locks into, with the contacts that feed it power from the wiring harness. This socket weighs 12 g (0.42 oz), and BMW has produced it since July 1991.

Original BMW Parts carry a 24-month parts warranty.

BMW uses this one socket across the E36 range, including the four-cylinder 318 models with the M42 and M44 engines, the six-cylinder 323, 325, and 328 cars with the M50 and M52 engines, and the M3 with the S50 and S52. BMW's parts data also includes the E36 Cabrio. It is made in Germany and sold individually.

Technical Details

• Manufacturer: BMW (genuine part)
• Part number: 63-21-1-387-655
• BMW name: Bulb socket
• Position: tail light
• Weight: 12 g (0.42 oz)
• Production start: July 1991
• Made in Germany
• Sold individually
• Warranty: 24-month parts warranty

Common Questions

Will one socket work on my E36 M3 and on a 318is?
Yes. BMW applies this same socket number to both, along with the other E36 models shown here.

Where is this socket made?
This genuine BMW socket is made in Germany.

A fresh socket from PMB Performance restores solid contact at the tail light.

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.