Chevrolet Sedan Delivery front and rear turn signal bulbs utilize 1034, 1073, or 1154 size specifications across both locations. The replacement chart covers 1950 through 1960 production years with corresponding bulb size data.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Chevrolet Sedan Delivery uses three distinct bulb types across its front and rear turn signal positions for the 1950-1960 model years: the 1034, 1073, and 1154.
The 1154 bulb is the most frequently specified type in these listings, covering both front and rear turn signal positions for the 1950-1955 model years.
The 1154 is a dual-filament bulb rated for both 6V and 12V operation, which reflects the automotive industry's transition from 6-volt to 12-volt electrical systems during that era.
The 1154 uses a BAY15d bayonet base and is classified as an older variant of the 1157, an ANSI-standard bulb recognized in both the US and Canada.
For the 1956-1957 Sedan Delivery, both the front and rear turn signal positions call for the 1073, a single-filament bulb operating at 12V and 13W with a BA15s bayonet base.
The 1073 is a lower wattage variant of the 1156 and carries a single-filament design, meaning it does not support a separate running light function within the same housing.
The 1034 is specified for both front and rear turn signals on the 1958-1960 Sedan Delivery, operating at 12V with a 21/5W dual-filament output and a BAY15d bayonet base.
The 1034 is a variant of the 1157 and shares the same BAY15d base as the 1154, though the two bulbs differ in voltage compatibility and wattage output, making them non-interchangeable despite the shared base type.
The front and rear turn signal bulb specifications are identical for every model year listed, indicating that the Sedan Delivery used the same bulb type at both ends of the vehicle within each respective year grouping.
The BAY15d base found on both the 1034 and 1154 features offset pins that prevent incorrect insertion, a design characteristic that distinguishes it from the single-pin BA15s base used by the 1073.