The Nissan 610 front turn signal requires a 1157 bulb size while the rear turn signal uses a 1156 bulb size. The replacement chart covers 1973 to 1976 model years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Nissan 610 uses the 1157 bulb for the front turn signal across all documented model years, spanning 1973-1976.
The 1157 is a dual-filament bulb rated at 12V with a 21W/5W output, meaning it carries one filament for the higher-intensity turn signal function and a second filament for a lower-intensity running light function within the same housing.
The 1157 uses a BAY15d bayonet base, a two-pin offset base that prevents incorrect bulb insertion by positioning the two pins at different heights.
The rear turn signal on the Nissan 610 takes the 1156 bulb across all documented model years, spanning 1973-1976.
The 1156 is a single-filament bulb rated at 12V and 21W, serving only one lighting function per socket.
The 1156 uses a BA15s bayonet base, a single-pin base that differs structurally from the BAY15d base found on the 1157.
Although the 1157 and 1156 share the same 15mm base collar width, their pin configurations are not interchangeable. Installing a 1156 in place of a 1157 would eliminate the secondary filament function.
Both the 1157 and 1156 are ANSI-standardized bulbs recognized across the United States and Canada, indicating broad availability within North American markets.
The consistent use of the same bulb sizes across all four model years of the 610 indicates no mid-generation changes to the turn signal bulb specifications between 1973 and 1976.