Honda Motorcycle CMX250C Rebel Turn Signal Bulb Size
Honda Motorcycle CMX250C Rebel front and rear turn signal bulbs use a P21W size, designated as 1073. The replacement chart covers 2001 through 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 two bulb types specified across the Honda Motorcycle CMX250C Rebel turn signal positions are the P21W and the 1073, both of which use a BA15s single-contact bayonet base.
The shared BA15s base means the P21W and 1073 are physically interchangeable in terms of socket fitment, though their wattage ratings differ significantly.
The P21W operates at 12V and 21W and is rated under the ECE standard, which governs lighting equipment in Europe and many other markets worldwide.
The 1073 operates at 12V and 13W and is rated under the ANSI standard, which applies to the United States and Canada. It is a lower-wattage variant of the more widely known 1156 bulb.
The wattage difference between the two types is 8W, meaning a direct substitution of one for the other would alter the electrical load on the turn signal circuit, which can affect flash rate in systems that rely on thermal or load-sensitive flasher relays.
On the Honda Motorcycle CMX250C Rebel, the front turn signal uses the P21W for the 2001-2005, 2008-2009, 2012, and 2016 model years, and the 1073 for the 2006-2007 and 2013-2015 model years.
The rear turn signal on the same model uses the P21W for the 2002-2003, 2006-2007, 2009, 2012, and 2014-2016 model years, and the 1073 for the 2001, 2004-2005, 2008, and 2013 model years.
The front and rear turn signals do not consistently use the same bulb type within a given model year, meaning the two positions require independent verification before replacement.
Because both bulb types share the BA15s bayonet base, an incorrect substitution would seat and function mechanically without any obvious installation error, making wattage verification a necessary step prior to fitment.
The 1073 is a single-filament bulb and is not interchangeable with dual-filament BA15d-based bulbs, despite superficial similarities in base appearance to some other automotive bulb families.