Honda Motorcycle CBR600F F2 front turn signal bulbs measure 1034 in size, while rear turn signal bulbs measure P21W and 1073, with each bulb type serving distinct lighting functions on the motorcycle. The replacement chart covers 1991 through 1994 production years and details bulb size specifications for turn signal applications across that period.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Honda Motorcycle CBR600F F2 uses three distinct bulb types across its turn signal positions and model years: the 1034, the P21W, and the 1073.
The 1034 is an ANSI-standard dual-filament bulb rated at 12V and 21/5W, fitted with a BAY15d bayonet base. It is a variant of the more widely known 1157 bulb.
The P21W follows the ECE standard used in Europe and worldwide markets. It is a single-filament signalling bulb rated at 12V and 21W, using a BA15s bayonet base.
The 1073 is an ANSI-standard single-filament bulb rated at 12V and 13W, also using a BA15s bayonet base. It is a lower wattage variant of the 1156 bulb.
The front turn signal position on the Honda Motorcycle CBR600F F2 uses the 1034 bulb consistently across all model years from 1991-1994.
The rear turn signal position uses the P21W for 1991-1992 and 1994, while the 1993 model year uses the 1073 instead.
The 1034 and P21W are not interchangeable. The 1034 uses a BAY15d base designed for dual-filament fitment, while the P21W uses a BA15s base designed for single-filament fitment. These two base types are physically distinct.
Although the P21W and 1073 share the same BA15s bayonet base type, their wattage ratings differ significantly, at 21W and 13W respectively, which affects their suitability as direct substitutes in turn signal circuits.
The dual-filament nature of the 1034 means it carries two separate circuits within a single bulb, a characteristic absent from both the P21W and the 1073, which are each single-filament designs.
The ANSI-standard bulbs, the 1034 and 1073, are designated for US and Canadian markets, while the ECE-standard P21W is associated with European and worldwide market applications.