Original BMW Side Panel Rear Light Bulb Socket, Right, for BMW 320i, 328i, 335i, ActiveHybrid 3, and M3 (2012–2015)

This Original BMW right tail light bulb carrier, part 63-21-7-313-044, holds the bulbs for the tail light mounted in the right rear side panel of the F30 3 Series and F80 M3 from 2012 through 2015. A bulb carrier is the plate that holds each bulb in its socket and carries the circuits that feed them, so the tail light cannot work without it. BMW names it the bulb socket for the rear light in the side panel, right, and records a weight of 106 g, about 0.2 lb. Production of this number began in November 2011. It is made in Germany and sold new.

Original BMW Parts carry a 24-month parts warranty.

This number is the right-hand carrier only, so match it to the passenger side of a US car. It serves the light in the side panel, not the light in the trunk lid. BMW's parts data uses it across three chassis. On the F30 sedan it covers N13, N20, N26, and N55 gasoline engines, N47N and N57 diesels, and the ActiveHybrid 3 with the N55. It also fits the long-wheelbase F35 and the F80 M3 with the S55. If a damaged lens or poor housing seal lets water in, the electrical contacts and wires can corrode. Moisture buildup inside the lens or repeated bulb failures can point to that kind of damage.

Technical Details

• Manufacturer: BMW (Original BMW part)
• Part number: 63-21-7-313-044
• BMW part name: bulb socket, rear light side panel, right
• Position: right rear, side panel tail light
• Weight: 106 g (0.2 lb)
• Production start: November 2011
• Chassis: F30, F35, and F80
• Made in Germany
• Sold individually
• Warranty: 24 months on Original BMW Parts

Common Questions

Is this the left or right side?
It is the right-side carrier for the tail light in the rear side panel.

What causes these carriers to fail?
Water that gets past a cracked lens or a poor housing seal can corrode the contacts and wiring, which can cause a malfunctioning light.

Does it fit the F80 M3?
Yes. BMW applies it to the F80 M3 with the S55 engine, and store fitment covers the 2015 M3.

Fitment & Compatibility

Use the table below to verify the year and submodel for your build. PMB Performance can confirm this against your VIN, backed by more than 20 years of parts and fitment work.