Acura CL Dome Light Bulb Size

The Acura CL dome light requires a DE3425 bulb size for proper installation and function within the interior lighting system. Data for the specified component covers the range from 1997 through 2003.

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 Size
2001-2003	DE3425
1997-1999	DE3425

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V.	DE3425

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Additional Notes

The DE3425 is the dome light bulb size specified for the Acura CL across all listed model years.
The 2001-2003 and 1997-1999 Acura CL model years all share the DE3425 bulb specification for the dome light position.
The DE3425 is a festoon-type bulb, meaning it is cylindrical in form and makes electrical contact through metal caps at each end rather than through a base socket.
Festoon bulbs are held in place by spring-loaded clips that press against the end caps, a mounting method common in interior dome light housings.
The DE3425 has a specified length of 41mm, which is a physical fitment requirement that must be matched when selecting a replacement bulb.
The bulb operates at 12 volts, consistent with standard automotive electrical systems.
The DE3425 conforms to ANSI standards as recognized in both the United States and Canada, indicating a standardized specification shared across North American automotive applications.
Because the DE3425 is an ANSI-standardized festoon bulb, compatible replacements from various manufacturers are generally interchangeable provided they match the 41mm length and end-cap contact design.