Mercedes-Benz CLK350 Turn Signal Bulb Size
The Mercedes-Benz CLK350 front inner turn signal uses 1157NA or 1034NA bulb sizes, the front outer uses 12961, the front uses P21W, and the rear uses PY21W or 12496 bulb sizes. The replacement chart covers 2006 to 2009 model 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 Inner Turn Signal
| Years | Bulb Size |
|---|---|
| 2007-2009 | 1157NA |
| 2006 | 1034NA |
Front Outer Turn Signal
| Years | Bulb Size |
|---|---|
| 2006-2009 | 12961 |
Front Turn Signal
| Years | Bulb Size |
|---|---|
| 2006-2009 | P21W |
Rear Turn Signal
| Years | Bulb Size |
|---|---|
| 2009 | PY21W |
| 2008 | 12496 |
| 2006-2007 | PY21W |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 21W/5W. | 1157NA |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. Variant of 1157. 12V, 21/5W. | 1034NA |
| Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W. | 12961 |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |
| ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W. | PY21W |
| Philips/Osram part number. Halogen bulb, specialty application. 12V. | 12496 |