The Ski-Doo Summit 600 high beam and low beam headlight bulbs both utilize a 9003 size. The replacement chart covers 1999 to 2010 production 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.
The Ski-Doo Summit 600 uses the 9003 bulb across both its high beam and low beam headlight positions for the 1999-2010 model years.
The 9003 is a dual-filament halogen bulb, meaning a single bulb contains two separate filaments to serve both the high beam and low beam functions within one unit.
The 9003 operates on a 12-volt electrical system and draws 60 watts on the high beam filament and 55 watts 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 housing.
The 9003 designation follows the ANSI standard recognized in both the United States and Canada, making it a widely available bulb type across North American markets.
Because the same 9003 bulb serves both the high beam and low beam positions on the Ski-Doo Summit 600, only one bulb type is required to service the entire headlight assembly.
The 9003 is also commonly cross-referenced with the H4 bulb designation used in international markets, though fitment compatibility between 9003 and H4 variants should be confirmed before substitution, as connector configurations can differ.