INFINITI G35 Map Light Bulb Size

The INFINITI G35 map light requires a DE3175 bulb size for proper installation and function within the interior lighting system. Data for the specified component covers the range from 2003 to 2008.

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
2008	DE3175
2003-2005	DE3175

Bulb Specifications

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

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Additional Notes

The DE3175 is the map light bulb size specified for the INFINITI G35 across the 2003-2005 and 2008 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, a form factor characterized by a cylindrical body with metal end-cap contacts at both ends rather than a base socket.
The bulb measures 31mm in length, which is the critical fitment factor for festoon bulbs, as the end-cap contacts must span the holder's contact points precisely.
The DE3175 operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles.
The end-cap contact design of the DE3175 means the bulb is held and powered through pressure contact at each end, requiring a compatible festoon-style housing in the vehicle.
A festoon bulb of a different length, even if visually similar, would not seat correctly in a housing sized for the 31mm DE3175, making length a non-negotiable fitment specification.