Isuzu NRR Dome Light Bulb Size

The Isuzu NRR dome light requires a DE3175 bulb size for proper installation within the interior overhead housing. Data provided for the specific component covers the range from 2005 to 2013.

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
2005-2013	DE3175 (Tilt Cab)

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 Isuzu NRR uses the DE3175 bulb for the dome light across all listed model years, spanning 2005-2013.
The DE3175 is an ANSI-standardized bulb type, meaning it conforms to a defined specification recognized across the United States and Canada.
The DE3175 is a festoon-style bulb, which is a cylindrical lamp that makes electrical contact through metal caps at each end rather than through a base socket.
The bulb operates at 12 volts, consistent with standard automotive electrical systems.
The 31mm length of the DE3175 refers to the distance between its two end-cap contacts, which determines physical fitment within the dome light housing.
The Tilt Cab body style designation in the specifications indicates that the DE3175 fitment applies specifically to that cab configuration of the NRR.
Because the DE3175 is an ANSI-standardized festoon bulb, it is produced by multiple manufacturers, and units sharing the same 31mm end-cap spacing and 12V rating are generally interchangeable within that standard.