The Kawasaki EN450A 454 LTD headlight bulb uses a 9003 size for both high and low beam functions. The replacement chart covers 1985 to 1990 production specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Kawasaki EN450A 454 LTD uses the 9003 bulb size for both high beam and low beam headlight positions across the 1985-1990 model years.
The 9003 is an ANSI-standard halogen bulb recognized in the United States and Canada, operating on a 12-volt electrical system with a dual-filament design rated at 60 watts for high beam and 55 watts for low beam.
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 this motorcycle.
The 9003 bulb uses a P43t base, a bayonet-style mount with a 43mm collar, and fitment depends on this base type matching the socket in the headlight housing.
The 9003 and H4 bulb types share the same P43t base and dual-filament halogen construction, making them functionally interchangeable in many applications, though the 9003 designation follows ANSI standards while H4 follows ECE standards used in other markets.