Ski-Doo MX Z 550F TNT headlight bulbs use 9003 size for both high and low beam functions. Replacement chart data spans 2010 to 2012 with bulb size specifications for those production years.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 9003 bulb is the sole bulb type listed across all headlight positions for the Ski-Doo MX Z 550F TNT, covering both high beam and low beam functions for the 2010-2012 model years.
The 9003 is a dual-filament halogen bulb, meaning a single bulb contains two separate filaments to serve both high and low beam functions within one housing.
The bulb operates on a 12-volt electrical system and carries a wattage rating of 60W on the high beam filament and 55W on the low beam filament.
The 9003 uses a P43t base, which is a bayonet-style mount with a 43mm collar, and this base type determines physical fitment into the headlight socket.
The 9003 designation follows the ANSI standard as used in the United States and Canada, and it is functionally equivalent to the European H4 bulb, though the two share the same filament and voltage specifications while differing in their regulatory classification.
Because both the high beam and low beam positions share the same 9003 specification across all three listed years, a single bulb type serves the entire headlight assembly rather than requiring separate bulbs for each function.