Ford Falcon front turn signal bulbs utilized 1034NA, 1157, and 1034 sizes, while rear turn signal bulbs used 1157 and 1034 sizes across the model line. The replacement chart covers 1960 through 1970 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.
The 1157 and 1034NA are the two most frequently specified bulb types across the Ford Falcon's front turn signal positions, with the 1034NA appearing in 1960-1961 through 1970 model years and the 1157 appearing in alternating years throughout the same span.
All three bulb types listed in these specifications, the 1157, 1034, and 1034NA, share the BAY15d bayonet base, operate at 12 volts, and carry a dual-filament design rated at 21W and 5W respectively.
The dual-filament construction of these bulbs allows a single unit to serve two lighting functions simultaneously, typically combining a brighter turn signal output with a lower-intensity running or parking light on the same circuit.
The 1034NA is a variant of the 1157 and is distinguished by its natural amber glass envelope, which produces a colored output without the need for an amber lens or housing filter.
The 1034 is also a variant of the 1157 and shares identical electrical ratings, though it lacks the amber glass of the 1034NA.
Because the 1157, 1034, and 1034NA all use the BAY15d base and identical voltage and wattage ratings, they are electrically interchangeable, though substituting a clear-glass type for the 1034NA may affect the color output of the turn signal if the housing lens is not itself amber.
The Ford Falcon's rear turn signal position used the 1157 bulb across the 1963-1970 model years, while the 1034 was specified for the 1960-1962 rear position.
The front turn signal position on the Ford Falcon shows more variation in bulb type across its model years than the rear position, with three distinct bulb designations appearing in the front versus two in the rear.