Ram 2500 Roof Marker Bulb Size
The Ram 2500 roof marker requires a 194NA bulb size for the specific lighting component located on the exterior top of the vehicle. Data for the bulb size covers the range from 2018 to 2020.
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 | US Type | EU Type | Shop |
|---|---|---|---|
| 2018-2020 | 194NA | WY5W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10), natural amber glass. 12V, 3.78W. | 194NA | Check Price |