Subaru Impreza Map Light Bulb Size

Additional Notes

• The DE3175 is the map light bulb size specified for the Subaru Impreza across all listed model years in these specifications.
• 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 or pins.
• The DE3175 operates at 12 volts, which is consistent with standard 12V automotive electrical systems.
• The festoon format of the DE3175 requires a socket that accepts end-cap contacts, so pin-base or wedge-base bulbs are not interchangeable with this fitment.
• The 31mm length is a defining characteristic of the DE3175 within the festoon family, as festoon bulbs are available in multiple lengths such as 28mm, 36mm, and 42mm, none of which are compatible substitutes.
• The DE3175 carries an ANSI designation, indicating it conforms to a standardized specification recognized in the United States and Canada, which governs its physical and electrical properties.
• The listed model years span from 1993 to 2024, with the 2002-2014 range absent from the specifications, and the DE3175 is the sole bulb size recorded for the map light position across all entries present.