Mercedes-Benz G500 License Plate Bulb Size

The Mercedes-Benz G500 license plate requires a DE3423 bulb size for proper illumination. Available data covers the range from 2002 through 2008 for the specified lighting component.

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
2002-2008	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 G500 uses the DE3423 bulb for the license plate position across the 2002-2008 model years.
The DE3423 is a festoon-type bulb, meaning it is cylindrical in shape and makes electrical contact through metal caps at both ends rather than through a base socket.
Festoon bulbs are held in place by spring-loaded clips within the housing, which grip the end caps to secure the bulb and complete the circuit simultaneously.
The DE3423 has a 41mm length, which is the critical fitment factor for festoon bulbs, as housings are sized to accept a specific length rather than a base type.
The bulb operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles of this type.
The DE3423 designation follows ANSI standards recognized in both the United States and Canada, indicating the bulb conforms to a defined set of dimensional and performance specifications within those markets.
Because festoon bulbs are length-dependent, substituting a festoon bulb of a different length, such as 36mm or 44mm, would result in an improper fit within the G500 license plate housing.
The end-cap contact design of the DE3423 means that corrosion or deformation at either cap can interrupt the circuit, as both ends carry the electrical connection.