The Kawasaki KVF750 Brute Force headlight bulb uses HS1 size for both high and low beam functions. The replacement chart covers 2021 to 2022 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 HS1 bulb is the sole type specified across all listed positions and years for the Kawasaki KVF750 Brute Force, covering both high beam and low beam headlight applications for 2021-2022.
The HS1 is a dual-filament halogen bulb, meaning a single physical unit contains two separate filaments, one for each beam function. This design allows it to serve both the high beam and low beam roles within the same housing.
The HS1 operates at 12 volts and carries a 35W/35W power rating, where each wattage figure corresponds to one of the two filaments. Both filaments draw equal wattage, which is a defining characteristic of the HS1 standard.
The HS1 uses a PX43t base, a bayonet-style fitting with a specific pin arrangement that physically prevents substitution with visually similar but incompatible bulb types such as the H4, which uses a P43t base without the keying offset.
The HS1 is governed by ECE regulations, a standard recognized across Europe and numerous other markets worldwide. This regulatory origin is relevant to replacement sourcing, as ECE-rated bulbs are subject to defined output and beam pattern requirements.
Because the HS1 and certain other dual-filament halogen types share a 43mm base collar, fitment errors are possible when selecting replacements. The PX43t base of the HS1 is keyed differently from the P43t base used by the H4, making the two types physically non-interchangeable despite the similar base collar size.