The Yamaha YJ125 Vino 125 headlight bulb uses a 9003 size for both high beam and low beam functions. The replacement chart covers 2004 through 2009 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 headlight bulb type specified for the Yamaha YJ125 Vino 125 across both high beam and low beam positions for the 2004-2009 model years.
The 9003 is a dual-filament halogen bulb, meaning a single bulb unit contains two separate filaments, one rated at 60W for high beam output and one rated at 55W for low beam output.
Because both the high beam and low beam positions share the same 9003 specification, the Yamaha YJ125 Vino 125 uses a single bulb to serve both lighting functions rather than two separate bulbs.
The 9003 bulb operates on a 12V electrical system and uses a P43t base, which is a bayonet-style mount with a 43mm collar used to secure and align the bulb within the headlight housing.
The 9003 designation follows the ANSI standard used in the United States and Canada. This bulb is functionally equivalent to the European H4 type, though the two designations originate from different standardization bodies and packaging may differ.
The P43t base is specific to the 9003/H4 bulb family. Bulbs with different base types are not physically compatible with the headlight housing of the Yamaha YJ125 Vino 125, regardless of voltage or wattage ratings.