Mercedes-Benz GL550 Turn Signal Bulb Size
The Mercedes-Benz GL550 front inner turn signal bulb utilizes 3457NA or 3357NA size, while front turn signal applications require PY24WNA, 3457NA, or 12961 bulb sizes, and rear turn signal positions use 12496 or PY21W bulb sizes. The replacement chart covers 2008 through 2016 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
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 |
|---|---|---|---|
| 2011-2012 | 3457NA | PY27/7W | Check Price |
| 2009-2010 | 3357NA | 3357NA | Check Price |
| 2008 | 3457NA | PY27/7W | Check Price |
Front Turn Signal
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 |
|---|---|---|---|
| 2013-2016 | PY24WNA (With Halogen Capsule Headlamps) | PY24W | Check Price |
| 2011-2012 | 3457NA (Main) | PY27/7W | Check Price |
| 2008-2010 | 3457NA (Main) | PY27/7W | Check Price |
| 12961 (Side rearview mirror) | 12961 | Check Price |
Rear Turn Signal
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 |
|---|---|---|---|
| 2010-2012 | 12496 | 12496 | Check Price |
| 2008-2009 | 7507 | PY21W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W. | 3457NA | Check Price |
| ANSI standard (US & Canada). Single-filament wedge bulb (T25), natural amber glass. 12V, 27W. | 3357NA | Check Price |
| ANSI standard (US & Canada). Amber variant of ECE PY24W with PGU20-4 base. 12V, 24W. | PY24WNA | Check Price |
| ECE standard (Europe & worldwide). Single-filament amber bulb with PGU20-4 base. 12V, 24W. | PY24W | Check Price |
| Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W. | 12961 | Check Price |
| Philips/Osram part number. Halogen bulb, specialty application. 12V. | 12496 | Check Price |
| ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W. | PY21W | Check Price |