The Yamaha FZX700 Fazer uses a 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production spanning 1986 to 1987.
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, meaning a single bulb contains two separate filaments to serve both high and low beam functions from one housing.
The 9003 operates on a 12-volt electrical system and draws 60 watts on the high beam filament and 55 watts on the low beam filament.
The 9003 designation follows the ANSI standard used in the United States and Canada, distinguishing it from the physically identical H4 bulb, which follows ECE standards used in other markets.
The Yamaha FZX700 Fazer uses the 9003 bulb for both the high beam and low beam headlight positions across the 1986-1987 model years.
Because both beam positions share the same 9003 bulb type, the high and low beam functions are served by a single dual-filament unit rather than two separate single-filament bulbs.
The P43t base is the mounting interface of the 9003 bulb, featuring a 43mm flange with three positioning lugs that orient the filaments correctly within the reflector housing.
The 9003 and H4 share the same physical form and P43t base, though substituting one for the other may affect compliance with regional lighting regulations depending on the market.