Volvo V40 License Plate Bulb Size

The Volvo V40 license plate light requires a DE3423 bulb size for proper installation and function. Data for the specified component covers the period from 2000 through 2004.

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
2000-2004	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 Volvo V40 uses the DE3423 bulb for the license plate position across the 2000-2004 model years.
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 pin or wedge.
The DE3423 has a length of 41mm, which is the span between its two end caps and determines physical fitment within the license plate lamp housing.
The bulb operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles.
The DE3423 designation follows ANSI standards, indicating it meets defined performance and dimensional specifications recognized across the United States and Canada.
Festoon bulbs of different lengths are not interchangeable even when voltage ratings match, as an incorrect length will prevent proper contact or cause the bulb to fit loosely within the holder.