The Ski-Doo GSX 600 headlight bulb uses a 9003 size for both high beam and low beam functions. The replacement chart covers 2004 through 2015 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 9003 bulb is the sole bulb type specified across all headlight positions for the Ski-Doo GSX 600, covering both high beam and low beam functions for model years 2004-2015.
The 9003 is a dual-filament halogen bulb, meaning a single bulb contains two separate filaments: one rated at 60 watts for high beam output and one rated at 55 watts for low beam output.
Because both the high beam and low beam positions share the same 9003 specification, a single bulb type serves both lighting functions rather than requiring separate bulbs for each.
The 9003 operates on a 12-volt electrical system, which is standard for powersports vehicles of this type.
The 9003 uses a P43t base, a bayonet-style mount with a 43mm flange. This base type is specific to the 9003 and its international equivalent, the H4, and is not interchangeable with single-filament bases such as those found on 9005 or 9006 bulbs.
The 9003 designation follows the ANSI standard used in the United States and Canada. The H4 designation refers to the functionally equivalent bulb under ECE standards used in other markets, and the two are generally considered interchangeable in fitment.