The Kawasaki W650 high beam and low beam headlight bulbs both utilize a 9003 size. The replacement chart covers vehicle production spanning 2000 to 2001.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 9003 is the sole bulb type across all listed positions and years in the Kawasaki W650 specifications, covering both high beam and low beam headlight functions for 2000-2001.
The 9003 is a dual-filament halogen bulb, meaning a single unit contains separate filaments for both high and low beam operation, which is why it serves both headlight positions in the W650.
The 9003 operates on a 12-volt electrical system and carries a wattage rating of 60W on the high beam filament and 55W on the low beam filament.
The 9003 uses a P43t base, a bayonet-style mount with a 43mm collar, which physically determines fitment compatibility and is not interchangeable with bulbs carrying different base types regardless of voltage or wattage similarity.
The 9003 designation is an ANSI standard classification applicable in the United States and Canada. It is functionally equivalent to the H4 bulb used under international IEC/ECE standards, though the designations originate from different standardization bodies.