Dodge Avenger Dome Light Bulb Size

The Dodge Avenger dome light uses bulb size 578 or DE3175 depending on the specific production period for the vehicle. Available data covers the range from 1995 through 2014.

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
2008-2014	578
1995-2000	DE3175

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V, 12W.	578
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175

Other Locations

Additional Notes

The Dodge Avenger dome light uses two distinct festoon bulb types across its production years: the 578 for 2008-2014 models and the DE3175 for 1995-2000 models.
Both the 578 and DE3175 are festoon-type bulbs, meaning they are cylindrical in form and make electrical contact through metal caps at each end rather than through a base socket.
The 578 and DE3175 are not interchangeable. The 578 measures 41mm in length while the DE3175 measures 31mm, and fitting the wrong size into a dome light housing will result in improper contact or fitment failure.
Both bulb types operate on a 12-volt electrical system, consistent with standard automotive DC power.
The 578 bulb carries a 12W power rating. This wattage determines the brightness and current draw of the dome light in 2008-2014 Avenger models.
Both the 578 and DE3175 conform to ANSI standards recognized in the United States and Canada, indicating standardized physical and electrical specifications across manufacturers.
The DE3175 designation includes a "DE" prefix, which is a common industry notation for double-ended festoon bulbs, reinforcing its end-cap contact design.