The Toyota Crown front and rear turn signal bulbs both utilize a 1157 size bulb for proper operation. This replacement chart covers vehicle production spanning 1969 to 1972.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 1157 bulb is an ANSI-standardized type used in both the United States and Canada, operating at 12 volts with a dual-filament configuration rated at 21 watts and 5 watts respectively.
The dual-filament design of the 1157 allows a single bulb to serve two distinct brightness levels, which in automotive applications typically corresponds to turn signal and parking light functions within the same housing.
The 1157 uses a BAY15d bayonet base, a two-pin offset base where the two pins are positioned at different heights to prevent incorrect insertion orientation.
The Toyota Crown (1969-1972) uses the 1157 bulb for both front and rear turn signal positions across all four model years covered in the specifications.
Because the front and rear turn signal positions share the same bulb type, a single 1157 bulb serves both locations on the vehicle without substitution.
The BAY15d base is not interchangeable with the similarly named BAY15s base, which is a single-filament variant with pins at equal heights; substituting one for the other is not compatible with the socket design.