Chevrolet Kingswood front and rear turn signal bulbs utilize 1157 and 1034 bulb sizes across the vehicle's production specifications. The replacement chart covers 1959 through 1972 model years with corresponding bulb size data.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Chevrolet Kingswood uses two bulb types across its turn signal specifications: the 1157 and the 1034, both of which are ANSI-standard bulbs recognized in the US and Canada.
Both the 1157 and 1034 are dual-filament bulbs, meaning each unit contains two separate filaments that serve distinct functions within a single housing, typically one for steady illumination and one for the turn signal flash.
Both bulb types share the BAY15d bayonet base, a two-pin offset base design that physically locks the bulb into its socket through a twist-and-seat motion.
Both the 1157 and 1034 operate at 12 volts with a 21W/5W filament rating, where the higher wattage corresponds to the brighter turn signal filament and the lower wattage to the secondary filament.
The 1034 is classified as a variant of the 1157, which indicates a close relationship in design and electrical characteristics, though the two are distinct ANSI part numbers and are not guaranteed to be interchangeable in all applications.
The Chevrolet Kingswood (1969-1972) uses the 1157 bulb for both front and rear turn signals, with the same bulb type serving both positions across all four of those model years.
The 1959-1961 Kingswood uses the 1034 bulb for both front and rear turn signals, again with a consistent specification across both positions for each of those years.
The transition from the 1034 to the 1157 between the 1961 and 1969 model years reflects a change in the specified bulb type for both the front and rear turn signal positions simultaneously.