The Buell S2 Thunderbolt uses an H6054 bulb size for both high beam and low beam headlight applications. The replacement chart covers 1995 to 1996 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 H6054 is an ANSI-standard sealed beam unit used in both the high beam and low beam positions of the Buell S2 Thunderbolt across the 1995-1996 model years.
As a sealed beam unit, the H6054 does not contain a replaceable bulb. The entire assembly is the light source, and the whole unit is replaced when it fails.
The H6054 operates at 12 volts and conforms to a 5x7-inch rectangular form factor, which is a standardized size under ANSI specifications recognized in both the United States and Canada.
Because the high beam and low beam positions share the same H6054 specification on the S2 Thunderbolt, both housings accept the same sealed beam unit.
The ANSI standardization of the H6054 means the unit is defined by a fixed size and electrical rating, and any H6054-compliant sealed beam from different manufacturers is expected to fit the same housing.