Mercedes-Benz CLK63 AMG License Plate Bulb Size

The Mercedes-Benz CLK63 AMG license plate requires a bulb with the unique size DE3423 for proper installation. Available data for the specified lighting component covers the range from 2007 to 2008.

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
2007-2008	DE3423	Check Price

Bulb Specifications

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

Other Locations

Additional Notes

The DE3423 is a festoon-type bulb, meaning it is cylindrical in shape and makes electrical contact through metal caps at each end rather than through a base socket.
The DE3423 measures 41mm in length, which is the critical fitment factor for festoon bulbs, as the end-cap contacts must span the fixture's contact points precisely.
The DE3423 operates at 12 volts, consistent with standard automotive electrical systems.
The DE3423 carries ANSI designation, indicating it conforms to standardized specifications recognized in the United States and Canada.
The Mercedes-Benz CLK63 AMG uses the DE3423 for its license plate bulb across the 2007-2008 model years.
Festoon bulbs of differing lengths are not interchangeable even when voltage ratings match, as an incorrect length will result in poor or absent contact with the fixture's terminals.