Kenworth C540 Brake Bulb Size
The Kenworth C540 brake light requires 1156 and P21W bulb sizes for the lighting system. Data for the specified vehicle covers the range from 1985 to 1993.
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 |
|---|---|
| 1992-1993 | 1156 |
| 1985 | 1156 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1156 |