Honda Motorcycle PC800 Pacific Coast uses a 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production years spanning 1989 to 1998.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 9003 is a dual-filament halogen bulb operating at 12 volts, with a high beam filament rated at 60 watts and a low beam filament rated at 55 watts. Its P43t base is a standardized bayonet-style fitting widely used in automotive and motorcycle lighting.
Because the 9003 carries both filaments within a single bulb, the Honda Motorcycle PC800 Pacific Coast uses the same physical bulb for both the high beam and low beam headlight positions across all listed model years.
The 9003 designation follows the ANSI standard, which applies in the United States and Canada. This standard defines the bulb's electrical ratings, base type, and light output characteristics.
The 9003 bulb is functionally equivalent to the European H4 type. Both share the same P43t base and dual-filament halogen construction, though the designations reflect different regional certification systems.
The PC800 Pacific Coast is specified with the 9003 bulb for the 1989-1990 and 1994-1998 model years across both headlight positions.
The P43t base uses a three-tab bayonet mount, which positions the filaments at precise locations within the reflector housing. Substituting a bulb with a different base type would result in incorrect filament alignment and degraded light output.