Plymouth Savoy front and rear turn signal bulbs utilize 1034 and 1154 size specifications. The replacement chart covers vehicle production spanning 1953 to 1964.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Plymouth Savoy uses the 1034 bulb for both front and rear turn signals across the 1956-1964 model years.
The 1034 is an ANSI-standardized dual-filament bulb operating at 12V with a 21/5W output and a BAY15d bayonet base.
A BAY15d bayonet base features two offset pins that lock the bulb into its socket, a design that prevents incorrect installation by ensuring only one rotational orientation fits.
The 1034 is classified as a variant of the 1157, meaning the two share the same base type and general construction but differ in their electrical ratings.
The Plymouth Savoy (1953-1955) used the 1154 bulb for both front and rear turn signals rather than the 1034.
The 1154 is also an ANSI-standardized dual-filament bulb with a BAY15d bayonet base, but it is rated for 6V or 12V operation, reflecting its designation as an older variant of the 1157.
Because the 1034 and 1154 share the same BAY15d base, they are physically interchangeable in terms of socket fit, though their differing voltage and wattage ratings make them electrically distinct.
The front and rear turn signal positions on the Savoy use identical bulb sizes for every model year covered in the specifications, with no positional variation between the two locations.