Suzuki Motorcycle DL650 V-Strom Headlight Bulb Size

Additional Notes

• The Suzuki Motorcycle DL650 V-Strom uses three distinct halogen bulb types across its headlight specifications: the 9003, H9, and H7, all operating on a 12-volt system.
• The 9003 is the most widely specified bulb across this model's history, covering both high and low beam positions from 2004-2016. It follows the ANSI standard used in the US and Canada, features a dual-filament design with a P43t base, and is rated at 60W for high beam and 55W for low beam within a single housing.
• Because the 9003 carries both filaments in one unit, a single bulb serves both high and low beam functions in the years it is specified, which differs from the separate-bulb arrangement used in later model years.
• From 2017-2023, the high beam position on the DL650 V-Strom shifted to the H9, an ECE-standard single-filament halogen bulb with a PGJ19-5 base rated at 65W. Its single-filament construction means it handles only the high beam function.
• The low beam position for 2017-2023 uses the H7, a separate ECE-standard single-filament halogen bulb with a PX26d base rated at 55W. The H7 holds approval in the US and Japan in addition to European and worldwide markets.
• The PGJ19-5 base of the H9 and the PX26d base of the H7 are physically incompatible with each other and with the P43t base of the 9003, meaning these bulb types are not interchangeable despite all being 12-volt halogen units.
• Owners of 2017-2023 models require two separate bulbs to service the headlight assembly, one H9 for the high beam and one H7 for the low beam, whereas earlier models required only a single 9003 bulb for both functions.
• The H9 and H7 follow ECE regulations, while the 9003 follows ANSI standards. Although the H9 and H7 carry US approval, the regulatory frameworks governing each standard differ, which can affect the range of replacement products available in a given market.