Yamaha WR250F Headlight Bulb Size

The Yamaha WR250F uses an HS1 and 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production spanning 2001 to 2021 with corresponding bulb size specifications.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

High Beam Headlight

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
2021	HS1	HS1	Check Price
2015-2019	HS1	HS1	Check Price
2001-2006	9003	H4	Check Price

Low Beam Headlight

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
2021	HS1	HS1	Check Price
2015-2019	HS1	HS1	Check Price
2001-2006	9003	H4	Check Price

Bulb Specifications

Description	Type	Shop
ECE standard (Europe & worldwide). Dual-filament halogen motorcycle bulb with PX43t base. 12V, 35W/35W.	HS1	Check Price
ANSI standard (US & Canada). Dual-filament halogen bulb with P43t base. 12V, 60W/55W.	9003	Check Price

Other Locations

Additional Notes

The Yamaha WR250F uses two distinct bulb types across its model years: the HS1 for 2015-2021 and the 9003 for 2001-2006.
Both the HS1 and 9003 are dual-filament halogen bulbs, meaning a single bulb serves both the high beam and low beam functions within one housing.
The HS1 follows the ECE standard, which governs lighting regulations in Europe and much of the world, while the 9003 follows the ANSI standard used in the United States and Canada.
Although both bulb types share a visually similar P43t-family base, the HS1 uses a PX43t base and the 9003 uses a P43t base, and these two base types are not interchangeable despite their resemblance.
The HS1 operates at 12V with a 35W/35W filament rating, meaning both the high and low beam filaments draw equal wattage.
The 9003 operates at 12V with a 60W/55W filament rating, where the higher wattage filament serves the high beam and the lower serves the low beam.
The 9003 draws significantly more wattage than the HS1, with the high beam filament consuming nearly double the power of its HS1 counterpart.
For the Yamaha WR250F, the same bulb size applies to both the high beam and low beam positions across all listed model years, reflecting the dual-filament design of both specified bulb types.