Harley-Davidson XL883L SuperLow Tail Light Bulb Size

The Harley-Davidson XL883L SuperLow uses a 3157 bulb size for the tail light assembly. The replacement chart covers vehicle production spanning 2011 to 2019 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
2011-2019	3157

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.	3157

Other Locations

Additional Notes

The Harley-Davidson XL883L SuperLow uses the 3157 bulb for the tail light across all listed model years, spanning 2011-2019.
The 3157 is an ANSI-standardized bulb type recognized across the United States and Canada, meaning it conforms to a defined set of electrical and physical specifications shared by multiple manufacturers.
The 3157 is a dual-filament bulb, which means it contains two separate filaments within a single housing, allowing it to serve both tail light and brake light functions simultaneously.
The bulb operates on a 12-volt electrical system and draws 27 watts on the high-intensity filament and 7 watts on the low-intensity filament, corresponding to the brake and tail light functions respectively.
The 3157 follows a T25 wedge form factor, a designation that describes the shape and base type of the bulb housing used for physical installation.
Because the 3157 is a dual-filament type, single-filament variants such as the 3156 are not interchangeable without loss of one lighting function, despite sharing a similar physical base.