Peterbilt 389 Brake Bulb Size
The Peterbilt 389 brake light utilizes 1157 and 2057 bulb sizes for the lighting components located at the rear of the vehicle. Data for the specific lighting requirements covers the period from 2008 through 2017.
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 |
|---|---|
| 2011-2017 | 1157 |
| 2008-2009 | 2057 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Brighter variant of 1157. 12V, 26.9W/8W. | 2057 |