Honda Motorcycle XL600V Transalp high beam and low beam headlight bulbs both utilize a 9003 bulb size. The replacement chart covers 1989-1990 vehicle 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 listed across all headlight positions for the Honda Motorcycle XL600V Transalp, covering both the high beam and low beam functions for the 1989-1990 model years.
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.
The bulb operates on a 12-volt electrical system, which is standard for motorcycles 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 base types such as P14.5s or P15d.
The 9003 designation is the ANSI standard used in the United States and Canada. Its functional and physical equivalent in international markets is the H4 bulb, though labeling and packaging may differ by region.
Because the 9003 serves both the high beam and low beam positions on the XL600V Transalp, both functions are housed within a single headlight assembly rather than separate bulbs for each beam.