Nissan 1200 Dome Light Bulb Size

The Nissan 1200 dome light requires a DE3175 bulb size for the interior lighting system. Data for the specific component covers the range from 1971 through 1973.

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
1971-1973	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 sole dome light bulb type listed for the Nissan 1200, covering the 1971-1973 model years.
The DE3175 follows the ANSI standard, meaning it conforms to the electrical and physical specifications recognized across the United States and Canada.
As a festoon bulb, the DE3175 seats between two spring-loaded end caps rather than using a bayonet or wedge base, which is a common fitment method in enclosed dome light housings.
The DE3175 has a 31mm length, which is the critical fitment factor when considering substitutions, as festoon bulbs must match the span between the fixture's contact points.
The bulb operates at 12 volts, consistent with the standard electrical system voltage found in conventional passenger vehicles of that era.
End-cap contacts on the DE3175 mean electrical connection is made at both flat ends of the bulb, distinguishing it from side-contact festoon variants that are not interchangeable with this fitment.