Mazda Millenia Map Light Bulb Size

The Mazda Millenia map light requires DE3175 and DE3022 bulb sizes for proper installation within the interior overhead lighting housing. Available data for the specified components covers the production range from 1995 through 2002.

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
2001-2002	DE3175
1999-2000	DE3175 (Front)
1999-2000	DE3022 (Rear)
1995-1998	DE3175

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3022

Other Locations

Additional Notes

The Mazda Millenia map light specifications cover model years 1995-2002 and reference two bulb sizes: DE3175 and DE3022.
Both the DE3175 and DE3022 are festoon-type bulbs, meaning they are cylindrical in shape and make electrical contact through metal caps at each end rather than through a base socket.
Both bulbs share the same 31mm length and operate at 12 volts, and both conform to ANSI standards applicable to the US and Canadian markets.
The DE3175 is the map light bulb for the Mazda Millenia across 1995-1999 (Front), 2001, and 2002, making it the more widely specified of the two bulbs across this model's production span.
The 1999-2000 Millenia specifies two distinct map light positions, Front and Rear, with each position requiring a different bulb size despite both being 31mm festoon types.
For the 1999-2000 Millenia, the rear map light position calls for the DE3022, while the front position retains the DE3175, indicating the two bulbs are not interchangeable between positions even though their physical length is identical.
Because the DE3175 and DE3022 share the same 31mm festoon form factor, the distinction between them lies in other electrical characteristics such as wattage or filament rating, which governs why specific positions require specific sizes.
For model years 1995-1998 and 2001-2002, the specifications list a single bulb size without a positional qualifier, indicating a single map light circuit or a uniform bulb requirement across all map light positions for those years.