Isuzu Rodeo Dome Light Bulb Size

The Isuzu Rodeo dome light requires a DE3175 bulb size for proper illumination within the interior cabin area. Data provided covers the specific range from 1998 through 2004.

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
1998-2004	DE3175

Bulb Specifications

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

Other Locations

Additional Notes

The Isuzu Rodeo uses the DE3175 bulb size for the dome light across the 1998-2004 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 31mm figure in the DE3175 designation refers to the length of the bulb, which is the critical fitment factor for festoon bulbs installed in fixed-length dome light housings.
The DE3175 operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles and light trucks.
The DE3175 carries ANSI designation, indicating it conforms to a standardized specification recognized in both the United States and Canada.
Because festoon bulbs are held in place by spring-loaded clips that grip the end caps, the 31mm length of the DE3175 is a direct compatibility factor; a bulb of a different length would not seat correctly in the Rodeo's dome light housing.