The Edsel Corsair front and rear turn signal bulbs both utilize a 1034 size bulb for proper operation. The replacement chart covers 1958 to 1959 model 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 1034 bulb is the sole bulb type used across all front and rear turn signal positions on the Edsel Corsair for both the 1958-1959 model years.
The 1034 is a dual-filament bulb, meaning it carries two separate filaments within a single envelope, allowing it to serve both a higher-wattage function and a lower-wattage function from one unit.
The 1034 operates on a 12-volt electrical system and carries a wattage rating of 21/5W, where the 21W filament handles the brighter turn signal output and the 5W filament handles a secondary function such as running or parking light duty.
The 1034 uses a BAY15d bayonet base, which is an offset twin-pin base. The two pins are positioned at different heights, which physically prevents the bulb from being seated in the wrong rotational orientation.
The 1034 is an ANSI-standardized bulb recognized in both the United States and Canada, placing it within a formal specification framework rather than a proprietary or regional-only standard.
The 1034 is described as a variant of the 1157 bulb. While the two share the same BAY15d base and dual-filament design, they are not identical and are not interchangeable without confirming that voltage, wattage, and socket fitment match the application.