Harley-Davidson FLHTCUTG Tri Glide Ultra License Plate Bulb Size

The Harley-Davidson FLHTCUTG Tri Glide Ultra uses a 168 bulb size for the license plate assembly. The replacement chart covers vehicle production spanning 2014 to 2020 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
2020	168
2014-2018	168

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168

Other Locations

Additional Notes

The 168 bulb is an ANSI-standardized type used in both the United States and Canada, classified as a miniature wedge bulb under the T10 designation and rated at 12 volts and 4.9 watts.
The T10 wedge base design relies on the bulb's glass envelope and lead wires to hold it in place within the socket, requiring no separate locking mechanism for installation.
The Harley-Davidson FLHTCUTG Tri Glide Ultra uses the 168 bulb for the license plate position across the 2014-2020 model years covered in these specifications.
At 4.9 watts, the 168 is among the lower-wattage bulbs in the miniature automotive category, a characteristic consistent with its use in a license plate illumination role rather than a primary lighting function.
The T10 socket type is shared across a wide range of vehicle makes and models, which means the 168 bulb is a broadly available replacement type rather than a proprietary part.
Although T10 sockets accept several bulb variants, substituting a bulb with a different wattage rating than the specified 4.9 watts may affect socket compatibility or circuit load on the vehicle.