Original BMW Tail Light Bulb Socket for BMW E28 524td, 528e, 533i, 535i, and 535is (1982–1988)

On the E28 5 Series, the tail light bulb socket holds each rear bulb in the lamp housing. Original BMW socket 63-21-1-369-306 does that job on the 524td, 528e, 533i, 535i, and 535is from 1982 through 1988. A socket like this carries power from the harness to the bulb contacts, so a corroded or brittle socket can leave a light out even after a fresh bulb goes in. BMW began making this part in April 1981. It weighs about 10 grams, is made in Spain, and is sold as one piece.

Original BMW Parts carry a 24-month parts warranty.

This part belongs to the E28 only. BMW's parts data places it on that chassis across the M10, M20, M21, M30, and S38 engines, which covers the four-cylinder 518, the eta-engine 525e and 528e, the turbodiesel 524td, and the big-six 533i, 535i, and M535i. North American owners will recognize the 524td, 528e, 533i, 535i, and 535is from that group. Since every E28 uses the same number, the engine under the hood does not change your choice.

Technical Details

• Manufacturer: BMW, made in Spain
• Part number: 63-21-1-369-306
• BMW name: bulb socket
• Position: tail light
• Weight: about 10 g (0.35 oz)
• Production start: April 1981
• Chassis: E28 5 Series
• Warranty: 24 months

Common Questions

Where is this socket made?
This Genuine BMW socket is made in Spain.

Does the engine matter for this part?
No. BMW uses the same socket on E28 cars with the M10, M20, M21, M30, and S38 engines.

PMB supports E28 owners with factory BMW lighting parts.

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.