Nissan 510 Dome Light Bulb Size

The Nissan 510 dome light uses a DE3175 bulb size for interior illumination. Replacement specifications in the chart span 1968 to 1981 production years.

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
1978-1981	DE3175
1968-1973	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 specified for the Nissan 510 across all listed model years.
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.
The bulb measures 31mm in length, which is the standard span between its two end-cap contacts and determines physical fitment within the dome light housing.
The DE3175 operates at 12 volts, consistent with the standard automotive electrical systems used in the vehicles listed.
The DE3175 conforms to ANSI standards, indicating it meets the specifications recognized across the United States and Canada for this bulb type.
The Nissan 510 used the DE3175 across model years 1968-1973 and 1978-1981, reflecting a consistent dome light housing specification throughout those production periods.
Festoon bulbs such as the DE3175 are not interchangeable with wedge-base or bayonet-base bulb types, as those designs use fundamentally different contact and retention methods.
When replacing the dome light bulb, the 31mm length of the DE3175 is a critical fitment factor, as festoon holders are sized to match a specific span and a bulb of a different length would not seat correctly.