Mercedes-Benz CL55 AMG License Plate Bulb Size

Mercedes-Benz CL55 AMG license plate bulb utilizes a DE3423 size specification for this model. The replacement chart covers 2001 through 2006 vehicle production years with corresponding bulb size data.

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
2001-2006	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 CL55 AMG uses the DE3423 bulb for its license plate lights across all listed model years, spanning 2001-2006.
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 or pins.
The bulb measures 41mm in length, which is the critical fitment factor for festoon bulbs, as the end caps must seat correctly within the holder to maintain a stable electrical connection.
The DE3423 operates at 12 volts, consistent with the standard electrical systems 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 performance and dimensional criteria applicable across North American markets.
Because festoon bulbs rely on length for proper fitment, substituting a festoon bulb of a different length, even if visually similar, risks poor contact or failure to seat within the license plate lamp housing.