Dodge Suburban front and rear turn signal bulbs both utilize a 1034 size bulb for optimal replacement specifications. The replacement chart covers 1957 to 1958 vehicle 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 1034 bulb is the sole bulb type specified for the Dodge Suburban across all listed positions and years, appearing in both the front and rear turn signal applications for 1957-1958.
The 1034 is a dual-filament bulb, meaning it contains two separate filaments within a single envelope, allowing it to serve two distinct lighting functions at different wattages.
The 1034 operates at 12 volts with a 21/5W output, where the higher 21W filament handles the brighter turn signal function and the lower 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 design. The asymmetric pin placement ensures the bulb can only be inserted in one orientation, preventing incorrect filament alignment.
The 1034 is classified as an ANSI standard bulb recognized in both the United States and Canada, placing it within a standardized North American specification framework.
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 directly interchangeable, as differences in filament wattage or physical construction may affect fitment or function in housings designed for one type specifically.