The Ski-Doo Skandic SWT high beam and low beam headlight bulb size is 9003 for both applications. The replacement chart covers 2004 through 2019 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 Skandic SWT uses the 9003 bulb for both high beam and low beam headlight positions across the 2004-2019 model years.
The 9003 is a dual-filament halogen bulb, meaning a single bulb unit contains two separate filaments to serve both the high beam and low beam functions simultaneously.
The 9003 bulb operates on a 12-volt electrical system and carries a wattage rating of 60W for the high beam filament and 55W for the low beam filament.
The 9003 uses a P43t base, which is a bayonet-style mount with a 43mm flange. This base type determines physical fitment into the headlight housing and is not interchangeable with other base configurations.
The 9003 designation follows the ANSI standard used in the United States and Canada. It is functionally equivalent to the European H4 bulb, though the two designations originate from different standardization bodies and packaging may differ by market.
Because the same 9003 bulb specification applies to both beam positions across all listed model years, a single bulb type covers the full headlight assembly for the Skandic SWT throughout the 2004-2019 range.