The Yamaha XSR900 high beam and low beam headlight bulbs both utilize a 9003 bulb size. The replacement chart covers vehicle production years spanning 2016 to 2021.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Yamaha XSR900 uses the 9003 bulb for both high beam and low beam headlight positions across the 2016-2021 model years.
The 9003 is an ANSI-standard designation recognized in the United States and Canada, making it the applicable reference for those markets.
As a dual-filament halogen bulb, the 9003 houses two separate filaments within a single unit, one serving the high beam function at 60W and the other serving the low beam function at 55W.
The shared 9003 fitment across both headlight positions means a single bulb type handles the full headlight assembly on the XSR900.
The 9003 operates on a 12-volt electrical system, consistent with standard motorcycle electrical architecture.
The P43t base is the mounting interface of the 9003 bulb, a bayonet-style base with a 43mm collar that physically secures and aligns the bulb within the headlight housing.
The 9003 is functionally equivalent to the H4 bulb used in international markets, sharing the same dual-filament design and P43t base, though the two designations originate from different standards bodies.
Because both beam positions on the XSR900 share the same bulb type, a replacement 9003 installed in the high beam position is not interchangeable with a bulb from a vehicle that uses separate single-filament bulbs for each beam.