The KTM 1290 Super Duke GT uses a 9003 bulb size for both high beam and low beam headlight applications. The replacement chart covers 2017 to 2019 production years 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.
The 9003 bulb is the sole bulb type specified across all listed positions for the KTM 1290 Super Duke GT, covering both high beam and low beam headlight sockets for the 2017-2019 model years.
The 9003 is a dual-filament halogen bulb, meaning a single bulb contains two separate filaments: one rated at 60W for high beam output and one rated at 55W for low beam output.
The 9003 operates on a 12V electrical system and uses a P43t base, which is a bayonet-style fitting with a 43mm collar.
The 9003 is defined under the ANSI standard, which governs bulb specifications in the United States and Canada. It is functionally equivalent to the international HB2 designation, though the designations originate from different standardization bodies.
Because the 9003 serves both the high beam and low beam positions on the 1290 Super Duke GT, the same bulb type handles the full headlight function through its dual-filament design rather than requiring separate single-filament bulbs for each mode.
The 9003 and H4 bulb types share the same P43t base and are often referenced interchangeably in fitment guides, though subtle differences in filament positioning exist between the two designations and substitution without verification of exact specifications carries compatibility risk.