Lexus LS460 Dome Light Bulb Size

The Lexus LS460 dome light requires a DE3175 bulb size for proper installation within the interior overhead lighting housing. Available data covers a production range from 2007 through 2016.

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
2007-2016	DE3175

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175

Other Locations

Additional Notes

The Lexus LS460 dome light uses the DE3175 bulb across all listed model years from 2007 to 2016.
The DE3175 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.
The DE3175 has a 31mm length, which is the span between its two end-cap contacts and determines physical fitment within the dome light housing.
The bulb operates at 12 volts, consistent with standard automotive electrical systems.
The DE3175 designation follows ANSI standards, meaning it conforms to a defined specification recognized across the United States and Canada.
Because the DE3175 is an ANSI-standardized festoon bulb, aftermarket and OEM replacements from different manufacturers are generally interchangeable as long as they carry the same designation and 31mm length.
Festoon bulbs of differing lengths, such as 28mm or 36mm variants, are not interchangeable with the DE3175 even if they share a similar appearance, as the end-cap spacing must match the housing exactly.