Honda Motorcycle NSS300 Forza Turn Signal Bulb Size
Honda Motorcycle NSS300 Forza front turn signal bulb uses P21/5W size while rear turn signal bulb uses 12496 size. Replacement chart covers 2014 to 2016 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 Honda Motorcycle NSS300 Forza uses two distinct bulb types across its turn signal positions for the 2014-2016 model years: the P21/5W at the front and the 12496 at the rear.
The P21/5W is an ECE-standard dual-filament bulb rated at 12V with a 21W main filament and a 5W secondary filament, mounted on a BAY15d bayonet base.
The BAY15d base features offset pins, which physically prevents incorrect single-filament bulbs from being seated in the socket, making filament-position orientation a relevant fitment consideration.
Because the P21/5W carries two filaments, substituting a single-filament P21W bulb in the front turn signal position of the NSS300 Forza would not be a direct functional equivalent, as the wiring circuit may rely on both filaments.
The 12496 is a part number used by Philips and Osram to designate a specialty halogen bulb rated at 12V, intended for specific automotive and motorcycle applications rather than general-purpose sockets.
The front turn signal position on the Honda Motorcycle NSS300 Forza uses the P21/5W consistently across all three listed model years, 2014-2016.
The rear turn signal position on the NSS300 Forza uses the 12496 consistently across the 2014-2016 model years, indicating no rear bulb specification change occurred within that production span.
The P21/5W conforms to ECE regulations, meaning it is a type recognized for road-legal signalling use in Europe and other markets that follow ECE lighting standards.