Kenworth C550 Tail Light Bulb Size
The Kenworth C550 tail light utilizes P21W, 1156, and 1157 bulb sizes depending on the specific production period. Data for the tail light covers the range from 1986 to 1994.
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 |
|---|---|
| 1988-1994 | 1156 |
| 1987 | 1157 |
| 1986 | 1156 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1156 |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 |