Suzuki Motorcycle DL1000 V-Strom Headlight Bulb Size

Additional Notes

• The Suzuki Motorcycle DL1000 V-Strom uses three distinct halogen bulb types across its headlight system: the H9, the H7, and the 9003, each carrying different base fittings and filament configurations that make them mutually incompatible despite sharing the same 12-volt operating voltage.
• The 9003 is an ANSI-standard dual-filament bulb rated at 12V with a 60W high beam and 55W low beam output, housed in a P43t base. Its dual-filament design means a single bulb serves both beam functions within one housing unit.
• The H9 is an ECE-standard single-filament halogen bulb rated at 12V, 65W, fitted with a PGJ19-5 base. It carries approval for use in the United States in addition to European and worldwide markets.
• The H7 is an ECE-standard single-filament halogen bulb rated at 12V, 55W, using a PX26d base. It holds approval across European, US, and Japanese markets.
• On the Suzuki Motorcycle DL1000 V-Strom, model years 2002-2012 use the 9003 bulb for both the high beam and low beam headlight positions, reflecting the dual-filament nature of that bulb type.
• From 2014 onward, the DL1000 V-Strom separates its high and low beam functions into distinct single-filament bulbs, with the H9 assigned to the high beam and the H7 to the low beam across the 2014-2019 model years.
• The base fittings across the three bulb types are entirely different: PGJ19-5 for the H9, PX26d for the H7, and P43t for the 9003. This means none of these bulbs are physically interchangeable with one another.
• The shift from the 9003 to separate H9 and H7 bulbs between the 2012 and 2014 model years represents a change from a single dual-filament unit per housing to two independent single-filament bulbs handling dedicated beam functions.