The Ski-Doo Skandic WT high beam and low beam headlight bulb size is 9003 for both applications. The replacement chart covers vehicle production years spanning 2004 to 2019.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Ski-Doo Skandic WT uses the 9003 bulb size for both the 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 within one housing.
The 9003 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 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 H4 bulb used under European ECE standards, though the two designations originate from different regulatory frameworks.
Because the 9003 and H4 share the same dual-filament design, P43t base, and 12V/60W/55W ratings, they are widely regarded as interchangeable in practice, which broadens the range of compatible replacement options.
The consistent use of a single bulb type across both beam positions and all sixteen model years means that one replacement bulb addresses both the high beam and low beam headlight functions on the Skandic WT.