Mercedes-Benz ML500 License Plate Bulb Size

The Mercedes-Benz ML500 license plate light requires a bulb with the specific size of DE3423 for proper installation. Available information covers the period from 2002 through 2007 for the specified vehicle.

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
2002-2007	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 Mercedes-Benz ML500 uses the DE3423 bulb for the license plate position across the 2002-2007 model years.
The DE3423 is a festoon-type bulb, which means it is cylindrical in shape and makes electrical contact through metal caps at both ends rather than through a base socket.
The DE3423 carries an ANSI designation, indicating it meets a standardized specification recognized in both the United States and Canada.
The bulb operates at 12 volts, consistent with the standard electrical systems found in passenger vehicles.
The festoon body of the DE3423 measures 41mm in length, a figure relevant to physical fitment within the license plate lamp housing.
Because the DE3423 is an ANSI-standardized part, other festoon bulbs sharing the same 41mm length and end-cap contact configuration are generally considered interchangeable, provided voltage and wattage ratings are compatible.