Harley-Davidson VRSCA/VRSCAW V-Rod Turn Signal Bulb Size
Harley-Davidson VRSCA/VRSCAW V-Rod front turn signal bulbs use 198 size, while rear turn signal bulbs use 199 and P21W sizes. The replacement chart covers 2002 through 2010 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.
The front turn signal position on the Harley-Davidson VRSCA/VRSCAW V-Rod uses the 198 bulb across all model years from 2002-2010, making it the most consistently specified bulb in these fitment records.
The 198 is an ANSI-standard miniature wedge bulb of the T5 type, rated at 12V and 2W. Its wedge base requires no separate socket retainer, as the bulb body itself locks into the housing.
The rear turn signal position uses two distinct bulb types depending on the model year: the P21W for 2002-2009 and the 199 for 2010.
The P21W is an ECE-standard single-filament signalling bulb with a BA15s bayonet base, rated at 12V and 21W. The ECE designation reflects a European and international regulatory standard rather than the North American ANSI framework.
The 199 is an ANSI-standard single-filament bulb also using a BA15s bayonet base, rated at 12V and 21W, and is described as a variant of the 1156. Despite sharing the same base type and electrical ratings as the P21W, the two bulbs belong to different standards and are not formally interchangeable across those standards.
The BA15s bayonet base shared by both the 199 and P21W features a single contact pin offset to one side, which physically distinguishes it from dual-contact bayonet bases used in other bulb types.
The rear turn signal on the 2010 model year specifies the 199 rather than the P21W used in all prior years, representing a shift from an ECE-standard to an ANSI-standard bulb in that position.
The front and rear turn signal positions on the V-Rod use bulbs with substantially different wattage ratings, 2W at the front and 21W at the rear, which reflects different optical and signalling output requirements for each position.