Chevrolet One-Fifty Series front and rear turn signal bulbs utilize 1034 and 1154 bulb sizes. The replacement chart covers 1953 through 1957 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 Chevrolet One-Fifty Series uses two bulb types across its turn signal positions: the 1034 for 1955-1957 models and the 1154 for 1953-1954 models.
Both the 1034 and 1154 are ANSI-standardized bulbs recognized in the United States and Canada, and both share the BAY15d bayonet base, a double-contact base design that physically resembles the more widely known 1157 bulb.
Both bulb types carry dual filaments, meaning each bulb serves two brightness levels within a single housing, a configuration typical of combined turn signal and running light applications.
The 1034 is rated at 12V with a 21/5W output, where the higher wattage filament handles the turn signal function and the lower wattage filament handles the running light function.
The 1154 is described as an older variant of the 1157 and is rated for operation at either 6V or 12V, reflecting the transitional period in automotive electrical systems during the early 1950s.
The same bulb size applies to both the front and rear turn signal positions for each model year on the Chevrolet One-Fifty Series, with no positional variation between front and rear within any given year.
Although the 1034 and 1154 share the same BAY15d bayonet base, they are distinct part numbers with different voltage and wattage ratings, and the two are not listed as interchangeable within these specifications.