Honda Motorcycle VT1100C Shadow Turn Signal Bulb Size

Honda Motorcycle VT1100C Shadow front turn signal bulbs measure 1034 in size, while rear turn signal bulbs measure P21W or 1073 in size. The replacement chart covers 1985 to 2007 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.

Front Turn Signal

YearsBulb Size
1992-20071034
1985-19901034

Rear Turn Signal

YearsBulb Size
1993-2007P21W
19921073
1988-19901073
1986-1987P21W
19851073

Bulb Specifications

Description Bulb Size
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W.1034
ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W.P21W
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.1073

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