Mitsubishi Precis Dome Light Bulb Size

The Mitsubishi Precis dome light utilizes a DE3175 bulb size for interior illumination. Available data covers the period from 1987 through 1994 for the specified automotive lighting component.

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
1987-1994	DE3175

Bulb Specifications

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

Other Locations

Additional Notes

The Mitsubishi Precis uses the DE3175 bulb across all listed model years, spanning 1987-1994.
The DE3175 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.
Festoon bulbs are held in place by spring-loaded clips within the dome light housing, which grip the end caps to maintain both mechanical and electrical contact.
The DE3175 has a nominal length of 31mm, which is the critical fitment factor for festoon bulbs, as the spring clips in the housing are sized to a specific length.
The bulb operates at 12 volts, consistent with the standard electrical system voltage of passenger vehicles in this class.
The DE3175 designation follows ANSI standards applicable in the United States and Canada, indicating the bulb conforms to a defined set of dimensional and electrical specifications within those markets.
Because the DE3175 is an ANSI-standardized part, bulbs from different manufacturers carrying the same designation are generally interchangeable, provided the 31mm festoon length and 12V rating are met.
Substituting a festoon bulb of a different length, such as the 36mm DE3423 or the 28mm DE3022, would result in a poor or failed fit within the Mitsubishi Precis dome light housing due to incompatible clip spacing.