Harley-Davidson FXDWG Dyna Wide Glide Tail Light Bulb Size

Harley-Davidson FXDWG Dyna Wide Glide tail light uses a 198 bulb size. The replacement chart covers 1993 to 1998 model 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.

Bulb Size by Year Range

Years	Bulb Size
1993-1998	198

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W.	198

Other Locations

Additional Notes

The Harley-Davidson FXDWG Dyna Wide Glide uses the 198 bulb for its tail light across the 1993-1998 model years.
The 198 bulb is classified as a T5 miniature wedge type, a form factor defined by its wedge-shaped base that seats directly into a socket without a separate metal cap or pins.
This bulb operates at 12 volts and draws 2 watts, placing it at the low end of the power range for tail light applications.
The 198 designation follows the ANSI standardization system recognized in both the United States and Canada, meaning the bulb specification is consistent across North American markets.
The T5 wedge base format is not universally interchangeable with other wedge base sizes such as T10 or T15, as socket fit is determined by the physical width of the base rather than voltage or wattage alone.