Kenworth W900 Brake Bulb Size
The Kenworth W900 brake light uses 1156, 1157, and P21W bulb sizes depending on the specific configuration. Available data covers the range from 1981 through 1997.
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 |
|---|---|
| 1993-1997 | 1156 |
| 1992 | 1157 |
| 1988-1991 | 1156 |
| 1987 | 1157 |
| 1986 | 1156 |
| 1985 | 1157 |
| 1984 | 1156 |
| 1983 | 1157 |
| 1981-1982 | 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 |