The Buick LeSabre tail light utilizes unique bulb sizes 194, 2057, 1157, and 1034 depending on the specific production period for the vehicle. Available data covers a range from 1959 through 1999 for the specified lighting components.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Buick LeSabre inner tail light uses the 194 bulb across all listed model years from 1991 to 2005. The 194 is a T10 miniature wedge bulb rated at 12V and 3.78W, making it one of the lower-wattage bulbs in the LeSabre tail light assembly.
The outer tail light of the Buick LeSabre shifted across three different bulb types depending on the model year. The 2057 was used from 1991 to 1995, the 3357 from 1997 to 1999, and the 3057 from 2000 to 2005.
The 3057 and 3357 are both T25 wedge bulbs operating at 12V. The 3057 is dual-filament at 27W/7W, while the 3357 is single-filament at 27W. Despite their physical similarity, these two bulbs are not functionally interchangeable due to the filament difference.
The 2057 uses a BAY15d bayonet base and is described as a brighter variant of the 1157, rated at 12V and 26.9W/8W compared to the 1157's 21W/5W. Both are dual-filament bulbs sharing the same base type.
The outer tail light on earlier LeSabre generations used the 1157 from 1964 to 1982. The 1157 is a dual-filament BAY15d bayonet bulb rated at 12V and 21W/5W, a long-established standard in North American automotive lighting.
The 1034 was used in the outer tail light from 1959 to 1963. It shares the BAY15d bayonet base with the 1157 and carries the same 12V, 21/5W rating, though it is classified as a distinct variant of the 1157.
For the 1997-1999 outer tail light, an additional 194 bulb is also listed alongside the 3357, indicating the assembly for those years incorporated both a T25 wedge and a T10 miniature wedge bulb.
All six bulb types listed across the LeSabre tail light specifications conform to ANSI standards applicable in both the United States and Canada.
The transition from the 2057 to the 3357 between the 1995 and 1997 outer tail light represents a change from a BAY15d bayonet base to a T25 wedge base, meaning the socket type in the housing also changed between those generations.
The 1983-1987 outer tail light data, which falls outside the 1991-2005 inner tail light sub-part, lists the 2057 as the specified bulb, consistent with the BAY15d dual-filament type used in earlier LeSabre outer tail light positions.