Mercedes-Benz S420 Brake Bulb Size
The Mercedes-Benz S420 brake light uses P21/5W and P21/4W bulb sizes for the rear lighting system. Data for the specified vehicle covers the range from 1994 to 1999.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Brake
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 |
|---|---|---|---|
| 1995-1999 | 1157 | P21/5W | Check Price |
| 1994 | P21/4W | P21/4W | Check Price |
Center High Mount Stop Light
| Years | Bulb Type | Shop |
|---|---|---|
| 1996-1999 | H21W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W | 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 BAZ15d bayonet base. 12V, 21W/4W. | P21/4W | Check Price |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BAY9s base. 12V, 21W. | H21W | Check Price |