Harley-Davidson FXD Dyna Super Glide Tail Light Bulb Size

Harley-Davidson FXD Dyna Super Glide tail light bulbs use a 198 size. The replacement chart covers 1995 to 1998 model 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.

Bulb Size by Year Range

Years	Bulb Size
1995-1998	198

Bulb Specifications

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

Other Locations

Additional Notes

The 198 bulb is the tail light bulb type used across the Harley-Davidson FXD Dyna Super Glide for the 1995-1998 model years.
The 198 bulb follows the ANSI standard, which is the recognized specification system for miniature bulbs in the United States and Canada.
This bulb uses a T5 miniature wedge base, a small wedge-shaped fitting that seats directly into a socket without a separate metal base or pins.
The 198 bulb operates at 12 volts and draws 2 watts, placing it at the very low end of the power consumption range for automotive lighting applications.
The wedge base design of the 198 bulb means it is not interchangeable with bayonet or screw-base bulb types, even where voltage and wattage ratings may otherwise match.