BMW 733i Brake Bulb Size
The BMW 733i brake light utilizes a P21W bulb size for the rear lighting system. Data for the specific component covers the period from 1978 through 1984.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Bulb Size by Year Range
| Years | Bulb Size |
|---|---|
| 1978-1984 | P21W |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |