Ford Galaxie front turn signal bulbs utilized 1157NA, 1034NA, and 1157 sizes, while rear turn signal bulbs used 1157 and 1034 sizes. The replacement chart covers 1959 through 1967 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.
All turn signal bulbs specified for the Ford Galaxie across both front and rear positions share the BAY15d bayonet base, a double-contact offset-pin base design that physically locks the bulb into the socket at a fixed rotational orientation.
Every bulb type listed, the 1157, 1157NA, 1034, and 1034NA, is a dual-filament design rated at 12V with a 21W high filament and a 5W low filament, allowing a single bulb to serve both the turn signal and parking light functions simultaneously.
The 1034 and 1034NA are each described as variants of their 1157 counterparts, meaning the 1034 relates to the 1157 and the 1034NA relates to the 1157NA, though all four share the same base type and voltage and wattage ratings.
The NA suffix on the 1157NA and 1034NA designates natural amber glass, meaning the amber color is produced by the glass envelope itself rather than by an amber-coated housing or lens.
For the Ford Galaxie front turn signal, the 1034NA was specified for 1964, while the 1157NA was specified for 1965-1967, making these two bulbs non-interchangeable despite their shared base and wattage, as the 1034NA and 1157NA are distinct ANSI part numbers.
The front turn signal position transitioned from clear-glass bulbs (1034, used 1959-1963) to natural amber glass bulbs (1034NA in 1964, then 1157NA in 1965-1967), reflecting a shift in how amber coloring was achieved at the front position over the production span.
The rear turn signal position used the 1034 from 1959-1962 and the 1157 from 1963-1967, with both being clear-glass bulbs, indicating the amber color at the rear was provided by the lens rather than the bulb itself throughout the entire listed production span.
In 1963, the front and rear turn signal positions used different bulbs, with the front specified as 1157 and the rear also specified as 1157, making that the first year both positions shared the same bulb number, though the front reverted to a different number in 1964.
All four bulb types listed carry the ANSI standard designation applicable to both the United States and Canada, classifying them as standardized replacements within the North American market.
Because the 1034 and 1157 share the BAY15d base and identical voltage and wattage ratings, physical fitment into the same socket is possible, but they remain separate ANSI designations and are not formally listed as interchangeable within these specifications.