Harley-Davidson FLHR Road King Fog Light Bulb Size

Harley-Davidson FLHR Road King front fog light bulbs use an 881 size bulb for this motorcycle model. The replacement chart covers 2007 to 2020 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.

Front Fog Light

Years	US Type	EU Type	Shop
2007-2020	881	H27W/2	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Single-filament halogen bulb with PGJ13 base. 12V, 27W.	881	Check Price

Other Locations

Additional Notes

The 881 bulb is the sole front fog light specification for the Harley-Davidson FLHR Road King across the 2007-2020 model years covered in these specifications.
The 881 is a single-filament halogen bulb, meaning it serves one lighting function only and does not combine roles such as low and high beam within a single unit.
The 881 operates at 12 volts and 27 watts, placing it in the low-wattage range typical of auxiliary fog lighting rather than primary illumination.
The 881 uses a PGJ13 base, which is a specific pin-and-groove locating base design; bulbs with different base types are not physically interchangeable with this socket regardless of similar wattage or voltage ratings.
The 881 carries ANSI standardization applicable in both the United States and Canada, indicating the bulb meets a defined performance and dimensional standard recognized across North American markets.
The 881 belongs to the broader 880-series halogen family, though individual members of that series differ in wattage and base configuration, making cross-series substitution inadvisable without confirming exact base and electrical compatibility.