The Yamaha PZ Phazer high beam and low beam headlight bulbs both utilize a 9003 size. The replacement chart covers vehicle production spanning 1985 to 2001.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Yamaha PZ Phazer uses the 9003 bulb size across all listed model years from 1985-2001 for both the high beam and low beam headlight positions.
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 houses both filaments within a single bulb, one unit serves both the high beam and low beam functions, which accounts for its use in both headlight positions on the PZ Phazer.
The 9003 uses a P43t base, a bayonet-style mount with a 43mm collar, which physically determines connector and housing compatibility during replacement.
The 9003 is cross-compatible with the H4 bulb, as both share the same P43t base and dual-filament configuration, though the 9003 designation follows ANSI naming conventions while H4 follows ECE standards used in other markets.
The consistent specification of the 9003 across the entire 1985-2001 model range indicates that the headlight housing design remained unchanged throughout that production period on the PZ Phazer.
Substituting a single-filament bulb in place of the 9003 would be incompatible, as the housing and wiring on the PZ Phazer are designed around the dual-filament configuration of that bulb type.