The Ford Sunliner front and rear turn signal bulbs utilize 1034 and 1154 sizes. The replacement chart covers 1952 through 1960 production years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Ford Sunliner uses two bulb types across its turn signal specifications: the 1034 and the 1154, both of which are dual-filament bulbs sharing the BAY15d bayonet base.
The 1034 bulb is an ANSI-standard type rated at 12V with a 21/5W output, where the two wattage values correspond to its high and low filaments used for signaling and running light functions respectively.
The 1154 is an older ANSI-standard dual-filament bulb also fitted with a BAY15d bayonet base, and it carries a 6V/12V rating, indicating compatibility with either voltage system.
Both the 1034 and 1154 are described as variants of the 1157 bulb family, which is a widely used automotive bulb type, though the 1034 and 1154 are not direct replacements for one another.
The Ford Sunliner (1956-1960) uses the 1034 bulb in both the front and rear turn signal positions.
The 1154 bulb is specified for both the front and rear turn signal positions on the 1952-1955 model years.
The front and rear turn signal positions share the same bulb type for every model year in the specifications, meaning no asymmetric fitment exists between the two positions.
Although the 1034 and 1154 share the same BAY15d bayonet base, their differing voltage ratings and generational distinctions within the 1157 family indicate they are not interchangeable without verifying the vehicle's electrical system voltage.