Kenworth T400 Tail Light Bulb Size
The Kenworth T400 tail light utilizes 1157, 1156, and P21W bulb sizes across various production versions. Data for the specified components covers the range from 1982 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 |
|---|---|
| 1995-1997 | 1157 |
| 1989-1994 | 1156 |
| 1984 | 1156 |
| 1982 | 1156 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1156 |