Peterbilt 378 Fog Light Bulb Size
The Peterbilt 378 front fog light uses an H3 bulb size for illumination. The replacement chart covers vehicle production spanning 1988 to 1997.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Front Fog Light
| Years | Bulb Size |
|---|---|
| 1988-1997 | H3 (With Halogen Capsule Headlamps) |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ECE standard (Europe & worldwide). Single-filament halogen bulb with PK22s base. Also approved in the US and Japan. 12V, 55W. | H3 |