Yamaha VK10 Viking Professional Headlight Bulb Size
The Yamaha VK10 Viking Professional high beam and low beam headlight bulbs both utilize a 9003 bulb size. The replacement chart covers vehicle production spanning 2006 to 2017.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Yamaha VK10 Viking Professional uses the 9003 bulb size for both the high beam and low beam headlight positions across the 2006-2017 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 housing.
Because both headlight positions on this vehicle share the same 9003 specification, a single bulb type serves the entire headlight assembly rather than requiring separate part numbers for each beam function.
The 9003 bulb 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 bulb uses a P43t base, which is a bayonet-style mount with a 43mm flange. This base type determines physical socket compatibility and is not interchangeable with other base configurations.
The 9003 designation follows the ANSI standard used in the United States and Canada. It is electrically and functionally equivalent to the H4 bulb used under international IEC standards, though the two designations reflect different regional classification systems.
The H4 and 9003 bulbs share the same filament output and base design, but packaging and labeling differ by market. A bulb sold as H4 in international markets will fit the same socket as a 9003 in North American applications.
The consistent use of the 9003 across all listed model years means that a single replacement bulb specification applies to the full 2006-2017 production range of the Yamaha VK10 Viking Professional without variation by year.