Kawasaki VN1700 Vulcan 1700 Vaquero Turn Signal Bulb Size
The Kawasaki VN1700 Vulcan 1700 Vaquero uses a P21/5W bulb size for front turn signals and a P21W bulb size for rear turn signals. The replacement chart contains bulb size specifications across the 2011 to 2020 production range.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Kawasaki VN1700 Vulcan 1700 Vaquero uses two distinct bulb types across its turn signal positions: the P21/5W at the front and the P21W at the rear, across the 2011-2020 model years.
The P21/5W is a dual-filament bulb operating at 12V with a 21W primary filament and a 5W secondary filament, mounted on a BAY15d bayonet base. The offset pins of the BAY15d base are designed to prevent incorrect installation orientation.
The P21W is a single-filament bulb rated at 12V and 21W, fitted with a BA15s bayonet base. The BA15s base uses a single contact pin centered on the base cap.
Both bulb types conform to ECE standards, which are recognized across Europe and numerous other markets worldwide.
The front and rear turn signal positions use physically incompatible bases. The BAY15d base of the P21/5W and the BA15s base of the P21W are not interchangeable, as the pin configurations differ between the two.
The dual-filament design of the P21/5W front bulb allows it to serve more than one lighting function simultaneously, whereas the single-filament P21W at the rear is dedicated to a single function.
The front turn signal specification for the Kawasaki VN1700 Vulcan 1700 Vaquero remained unchanged across the entire 2011-2020 production span, with the P21/5W specified for every listed year.
The rear turn signal position similarly retained the P21W without variation across all ten model years covered by the specifications.