Mitsubishi Outlander PHEV Dome Light Bulb Size

The Mitsubishi Outlander PHEV dome light requires a DE3175 bulb size for proper illumination. The replacement chart covers 2018 to 2020 production years with corresponding bulb specifications.

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
2018-2020	DE3175

Bulb Specifications

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

Other Locations

Additional Notes

The DE3175 is the dome light bulb size for the Mitsubishi Outlander PHEV across the 2018-2020 model years.
The DE3175 follows the ANSI standard, which is the recognized specification framework used in the United States and Canada for automotive lighting components.
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 bulb has a 31mm length, which is a critical fitment factor, as festoon bulbs must match the span of the mounting clips inside the dome light housing.
The DE3175 operates at 12 volts, consistent with the standard electrical system voltage found in conventional passenger vehicles.
Because festoon bulbs rely on end-cap contacts, substituting a bulb with a different length or contact style would result in an improper fit within the Outlander PHEV dome light housing.