Pontiac 6000 front turn signal bulbs utilize 2057NA or 1034NA sizes, while rear turn signal bulbs use 2057 size. The replacement chart covers 1982 through 1991 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 2057NA is the most frequently specified front turn signal bulb across the Pontiac 6000 model years listed, appearing for 1982-1983 and 1990-1991.
The 2057NA operates on a dual-filament design with a BAY15d bayonet base, rated at 12V with a high filament draw of 26.9W and a low filament draw of 8W.
The "NA" suffix in the 2057NA and 1034NA designations indicates natural amber glass, meaning the amber color is produced by the glass envelope itself rather than by an external lens or coating.
The 2057 is the sole rear turn signal bulb specified for the Pontiac 6000 across all listed model years, covering 1982-1984 and 1990-1991.
The 2057 shares the same BAY15d bayonet base and 12V, 26.9W/8W dual-filament rating as the 2057NA, differing only in the absence of natural amber glass.
All three bulb types listed, the 2057NA, 1034NA, and 2057, share the BAY15d bayonet base, which uses offset pins to ensure correct polarity orientation during installation.
The 1034NA is specified exclusively for the 1984 front turn signal position on the Pontiac 6000, setting that year apart from all other listed model years for that position.
The 1034NA carries a lower wattage rating of 21W/5W compared to the 2057NA at 26.9W/8W, meaning the two bulbs are not electrically interchangeable despite sharing the same base type and amber glass construction.
Both the 2057NA and the 2057 are described as brighter variants of the 1157, while the 1034NA is described as a variant of the 1157, indicating a closer output relationship between the 1034NA and the standard 1157 than between the 2057-series bulbs and the 1157.
All bulbs in these specifications conform to ANSI standards applicable in both the United States and Canada.