Honda Motorcycle FSC600 Silver Wing Turn Signal Bulb Size
Honda Motorcycle FSC600 Silver Wing front and rear turn signal bulbs use 12496 and PY21W size specifications. The replacement chart covers 2002 to 2010 production years with corresponding bulb size data.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Honda Motorcycle FSC600 Silver Wing turn signal specifications reference two bulb types across all model years listed: the 12496 and the PY21W.
The PY21W is an ECE-standard single-filament amber bulb rated at 12V and 21W, fitted with a BAU15s offset bayonet base. The offset pin arrangement of the BAU15s base is a keyed design, meaning it physically prevents incorrect installation of non-amber bulbs in sockets intended for amber output.
The 12496 is a Philips/Osram part number designating a 12V halogen bulb for specialty applications. Its classification as a specialty halogen type indicates it is purpose-built for specific housings rather than general automotive use.
Both bulb types operate at 12V, which is consistent with the standard electrical system voltage found on motorcycles of this class.
The front turn signal position on the Honda Motorcycle FSC600 Silver Wing does not use a single bulb type across all listed years. The 2002 and 2004-2007 model years use the PY21W, while 2003 and 2008-2010 use the 12496.
The rear turn signal position similarly alternates between the two bulb types across the listed model years, with no extended consecutive run of either type at that position.
Because the front and rear positions on the same model year do not always share the same bulb type, the two positions require separate verification before replacement. For example, the 2010 model year uses a 12496 at the front and a PY21W at the rear.
The PY21W and 12496 are not confirmed interchangeable within these specifications. The BAU15s bayonet base of the PY21W is a distinct base type, and substituting one bulb for the other without confirming socket compatibility risks fitment failure or improper function.
The 2007 model year uses a PY21W at the front and a 12496 at the rear, which is the reverse configuration of the 2010 model year, further illustrating that position-specific lookup is necessary for this vehicle.