Kenworth C550 Side Marker Bulb Size
The Kenworth C550 front side marker uses 904 or 1157 bulb sizes, while the rear side marker requires 904 or 67 bulb sizes. The replacement chart covers 1986 to 1994 production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Front Side Marker
If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 1994 | 904 | 904 | Check Price |
| 1988-1993 | 1157 | P21/5W | Check Price |
| 1987 | 904 | 904 | Check Price |
| 1986 | 1157 | P21/5W | Check Price |
Rear Side Marker
| Years | Bulb Type | Shop |
|---|---|---|
| 1987-1994 | 904 | Check Price |
| 1986 | 67 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 8W. | 904 | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 | Check Price |
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W. | 67 | Check Price |