Mercedes-Benz G550 4x4 front and rear turn signal bulbs use 12496 size. The replacement chart covers 2017 to 2018 production years with bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 12496 is a halogen bulb operating at 12 volts, designated under Philips and Osram part numbering systems as a specialty application bulb.
The Mercedes-Benz G550 4x4 uses the 12496 bulb for both front and rear turn signal positions across the 2017-2018 model years.
The shared 12496 fitment across all four turn signal positions means the same bulb serves both front and rear applications on this vehicle.
Halogen bulbs in the 12496 classification produce light through a tungsten filament enclosed in a halogen gas environment, which extends filament life and maintains luminous output compared to standard incandescent bulbs.
The specialty application designation of the 12496 indicates it is intended for specific vehicle fitments rather than broad general-purpose use, which is relevant when considering substitutions or replacements.
The 12496 bulb carries dual-brand sourcing from both Philips and Osram, two manufacturers that produce bulbs to the same specification under this part number.