Yamaha YZF-R1 Headlight Bulb Size

Yamaha YZF-R1 headlight bulb sizes include H7, H1, and 9003 configurations for both high and low beam applications, with the bulb size varying across production generations. The replacement chart covers 1998 to 2014 model years and documents the specific bulb size specifications for each vehicle production year.

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
2007-2014	H7	H7	Check Price
2004-2006	H1	H1	Check Price
1998-2003	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
2007-2014	H7	H7	Check Price
2004-2006	H1	H1	Check Price
1998-2003	9003	H4	Check Price

Bulb Specifications

Description	Type	Shop
ECE standard (Europe & worldwide). Single-filament halogen bulb with PX26d base. Also approved in the US and Japan. 12V, 55W.	H7	Check Price
ECE standard (Europe & worldwide). Single-filament halogen bulb with P14.5s base. Also approved in the US and Japan. 12V, 55W.	H1	Check Price
ANSI standard (US & Canada). Dual-filament halogen bulb with P43t base. 12V, 60W/55W.	9003	Check Price

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Additional Notes

The Yamaha YZF-R1 headlight specifications cover three distinct bulb types across the 1998-2014 model range: the 9003, H1, and H7, each representing a different generation of fitment.
The H7 is the most widely specified bulb across these listings, covering both high and low beam positions for the 2007-2014 model years. It is a single-filament halogen bulb operating at 12V and 55W, fitted with a PX26d base, and is recognized under ECE standards with additional approval in the US and Japan.
The H1 bulb is specified for both beam positions on the 2004-2006 models. Like the H7, it is a single-filament halogen unit rated at 12V and 55W, though it uses a P14.5s base rather than the PX26d found on the H7, making the two types physically incompatible despite sharing the same wattage.
The 9003 bulb is specified for both beam positions on the 1998-2003 models. Unlike the H7 and H1, the 9003 is a dual-filament halogen bulb, housing both high and low beam functions within a single unit. It operates at 12V with a 60W high beam filament and a 55W low beam filament, and uses a P43t base.
Because the 9003 uses a dual-filament design with a P43t base, it is not interchangeable with either the H1 or H7, both of which are single-filament types with entirely different base configurations.
The H1 and H7 share the same 12V/55W electrical rating but differ in base type, with the P14.5s on the H1 and the PX26d on the H7. This base difference means the two types are not interchangeable despite their identical power ratings.
The 9003 is governed by ANSI standards applicable to the US and Canada, while the H1 and H7 are governed by ECE standards with worldwide recognition, reflecting a shift in the regulatory framework of the specified bulbs across the model range.
On the 1998-2003 Yamaha YZF-R1, the single 9003 bulb serves both high and low beam functions simultaneously through its dual-filament construction, whereas the H1 and H7 fitments on later models each serve only one beam function per bulb.