Honda Motorcycle CTX700 high beam and low beam headlight bulbs both utilize a 9003 bulb size. The replacement chart covers vehicle production spanning 2014 to 2018.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Honda Motorcycle CTX700 uses the 9003 bulb for both high beam and low beam headlight positions across the 2014-2018 model years.
The 9003 is an ANSI-standard bulb designation used in the United States and Canada, operating at 12 volts with a dual-filament halogen construction rated at 60 watts on the high beam filament and 55 watts on the low beam filament.
Because the 9003 contains two filaments within a single bulb, it serves both the high and low beam functions from one unit, which accounts for its use in both headlight positions on the CTX700.
The 9003 bulb uses a P43t base, a bayonet-style mount with a 43mm collar, which determines physical socket compatibility and is a critical factor in fitment.
The 9003 and H4 bulb types share the same P43t base and dual-filament halogen design, though the 9003 is the ANSI designation while H4 is the ECE designation used in other markets; these two types are widely regarded as interchangeable in practice.