The Buell Lightning CityX XB9SX uses 5008 and 232 bulb sizes for front turn signal applications, with 232 and 5008 sizes specified for rear turn signals. The replacement chart covers 2005 through 2009 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 Buell Lightning CityX XB9SX uses two distinct bulb types across its front and rear turn signals: the 5008 and the 232, both of which are ANSI-standard bulbs rated for use in the US and Canada.
The 5008 is a single-filament bulb with a BA15s bayonet base, operating at 12V. It is a lower wattage variant of the widely known 1156 bulb, sharing the same base type but drawing less power.
The 232 is a festoon-style bulb with an SV8.5 base, rated at 12V and 3W. Festoon bulbs are cylindrical in form and mount by pressing between two spring contacts rather than inserting into a socket.
The BA15s bayonet base of the 5008 and the SV8.5 festoon base of the 232 are physically incompatible mounting types, meaning the two bulbs are not interchangeable with each other.
In the 2009 model year, the front turn signal position uses the 5008, while the rear turn signal position uses the 232.
In the 2007 model year, both the front and rear turn signal positions use the 232 bulb.
In the 2005 model year, the front turn signal position uses the 232, while the rear turn signal position uses the 5008, which is the reverse of the 2009 configuration.
Because the front and rear positions do not share the same bulb type across all model years, the position of installation must be confirmed before selecting a replacement bulb.