BMW 740iL License Plate Bulb Size

The BMW 740iL license plate light uses a DE3423 bulb size for illumination. Available data covers the span from 1993 through 2001 for the specified vehicle components.

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
1993-2001	DE3423	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V.	DE3423	Check Price

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Additional Notes

The BMW 740iL uses the DE3423 bulb for license plate illumination across all documented model years from 1993 to 2001.
The DE3423 is a festoon-type bulb, meaning it is cylindrical in form and makes electrical contact through metal caps at each end rather than through a base socket or pins.
The DE3423 has a physical length of 41mm, which is a standard festoon size also shared by several other bulb designations in the same family.
The bulb operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles of this type.
The DE3423 conforms to ANSI standards as recognized in the United States and Canada, indicating it meets defined performance and dimensional criteria for those markets.
Because multiple festoon bulb designations exist at or near the 41mm length, the end-cap contact design of the DE3423 is a relevant factor when confirming fitment, as physically similar bulbs may differ in contact configuration.