The Buell XB9R Firebolt uses H3 bulb size for both high beam and low beam headlight applications. The replacement chart covers 2002 through 2007 production years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Buell XB9R Firebolt uses the H3 bulb type for both high beam and low beam headlight positions across all model years from 2002-2007.
The H3 is a single-filament halogen bulb, meaning it contains one tungsten filament enclosed in a halogen gas-filled quartz envelope, which allows it to operate at higher temperatures than standard incandescent bulbs while maintaining a compact form factor.
The H3 bulb uses a PK22s base, which is a pinch-type connector rather than a bayonet or screw fitting. This base type is specific to the H3 standard and is not interchangeable with other common automotive halogen bases such as H1 or H4.
The H3 bulb operates at 12 volts and 55 watts, which are the standard electrical ratings for this type across automotive applications.
The H3 bulb carries ECE certification, meaning it meets the regulatory standards set by the United Nations Economic Commission for Europe, which governs lighting equipment across European and many worldwide markets.
The H3 specification is also approved for use in the United States and Japan, making it a globally accepted bulb standard across three major regulatory regions.
Because the same H3 bulb specification applies to both the high beam and low beam positions, the XB9R Firebolt does not use a dual-filament bulb to handle both functions. Each beam position relies on a separate, dedicated single-filament unit.