The Yamaha PZ50 Phazer uses a 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production years spanning 2007 to 2018.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Yamaha PZ50 Phazer uses the 9003 bulb size for both its high beam and low beam headlight positions across the 2007-2018 model range.
The 9003 is an ANSI-standardized bulb designation recognized in the United States and Canada, distinguishing it from region-specific equivalents used in other markets.
This bulb type is a dual-filament halogen, meaning a single bulb contains two separate filaments, one dedicated to high beam output and one to low beam output.
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 base type of the 9003 is P43t, a bayonet-style fitting with a 43mm collar, which determines physical socket compatibility in the headlight housing.
Because the Yamaha PZ50 Phazer uses the same 9003 bulb for both beam positions, a single replacement bulb serves both functions within the same housing unit.
The 9003 shares its filament wattage ratings and P43t base with the H4 bulb, a common European equivalent, though the two designations originate from different regional standards and are not always interchangeable without verification of socket fit.
The consistent use of the 9003 across all listed model years means that a bulb sourced for any year within the 2007-2018 range is specification-compatible with the others.