Suzuki Motorcycle GSX-R600 Headlight Bulb Size

Additional Notes

• The H9 bulb is the most widely used high beam type across the Suzuki Motorcycle GSX-R600 specifications, appearing in model years 2006-2007 and 2011-2023. It is a single-filament halogen bulb rated at 12V and 65W, built to the ECE standard with a PGJ19-5 base, and carries approval for use in the United States as well as European and worldwide markets.
• The H7 bulb is the most widely used low beam type across the GSX-R600 specifications, covering model years 2001 and 2004-2007 and 2011-2023. It is a single-filament halogen bulb rated at 12V and 55W, built to the ECE standard with a PX26d base, and holds approval in the United States and Japan in addition to European and worldwide markets.
• The 9003 bulb is the only dual-filament type in the specifications. It handles both high and low beam functions within a single unit, which is why it appears in both the high beam and low beam positions for the same model years. It operates at 12V with separate wattage ratings of 60W for high beam and 55W for low beam, and uses a P43t base under the ANSI standard.
• The 9005 bulb, used for the high beam position in the 2008-2009 GSX-R600, is a single-filament halogen type rated at 12V and 65W with a P20d base. It follows the ANSI standard applicable to the United States and Canada. Although the 9005 and H9 share the same wattage rating, their base types differ, making them physically non-interchangeable without modification.
• The H11 bulb, used for the low beam position in the 2008-2009 GSX-R600, is a single-filament halogen type rated at 12V and 55W with a PGJ19-2 base. Its base type is distinct from the H7 used in surrounding model years, meaning H11 and H7 bulbs are not interchangeable despite sharing the same wattage rating.
• In the 2003-2004 GSX-R600, the high beam and low beam specifications diverge. The high beam position uses the 9003 dual-filament bulb, while the low beam position uses the single-filament H7. This split-type arrangement means the two positions require different bulbs and cannot share the same replacement part.
• The 2001 GSX-R600 uses an H7 bulb for both the high beam and low beam positions, making it the only model year in the specifications where a single-filament ECE bulb serves both functions simultaneously.
• The base types across the specified bulbs are all distinct from one another. The H9 uses a PGJ19-5 base, the H7 uses a PX26d base, the H11 uses a PGJ19-2 base, the 9003 uses a P43t base, and the 9005 uses a P20d base. No two bulb types in the specifications share a base, which means substitution between any of these types requires physical adapter hardware or a housing change.