Opel 1900 Turn Signal Bulb Size

The Opel 1900 front and rear turn signal bulbs utilize a 1157 or 1034 size. The replacement chart covers 1971 through 1975 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
1973-19751157
1971-19721034

Rear Turn Signal

YearsBulb Size
1973-19751157
1971-19721034

Bulb Specifications

Description Bulb Size
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W.1157
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W.1034

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