BMW 733i Courtesy Bulb Size
The BMW 733i uses a courtesy light component with a unique DE3423 bulb size for interior illumination. Available data for the specified lighting covers the range from 1978 to 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 Type | Shop |
|---|---|---|
| 1978-1984 | DE3423 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V. | DE3423 | Check Price |