BMW 535i GT License Plate Bulb Size

The BMW 535i GT license plate requires a bulb size of DE3423 for proper illumination. Data for the specified component covers the range from 2010 through 2011.

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
2010-2011	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 DE3423 is the specified license plate bulb for the BMW 535i GT across the 2010-2011 model years.
The DE3423 follows the ANSI standard, which governs bulb specifications for the United States and Canadian markets.
As a festoon-type bulb, the DE3423 is cylindrical in form and seats between two spring-loaded end-cap contacts rather than using a bayonet or wedge base.
The DE3423 has a length of 41mm, which is a critical fitment factor, as festoon bulbs must match the contact spacing of the housing to seat correctly.
The bulb operates at 12 volts, consistent with the standard electrical systems found in passenger vehicles.