The Oldsmobile Cutlass Salon brake light requires bulb sizes 1157 and 2057 for the lighting system. Data for the specified components covers the range from 1975 through 1987.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Oldsmobile Cutlass Salon brake light specifications reference three bulb types across its model years: the 2057, 1157, and 1156, all of which conform to ANSI standards recognized in both the United States and Canada.
The 1157 is the most frequently specified bulb across the Cutlass Salon brake light positions, appearing in the standard brake light application for the 1975-1980 and 1985-1986 model years.
The 1157 is a dual-filament bulb rated at 12V with a high filament draw of 21W and a low filament draw of 5W, mounted on a BAY15d bayonet base. The dual-filament design allows it to serve both brake and running light functions within a single housing.
The 2057 replaces the 1157 in the standard brake light position for the 1987 Oldsmobile Cutlass Salon. Like the 1157, it is a dual-filament bulb with a BAY15d bayonet base, but it operates at a higher wattage of 26.9W on its primary filament, with a 8W secondary filament, at 12V.
Because the 2057 and 1157 share the same BAY15d bayonet base, they are physically interchangeable in terms of socket fitment, though their filament wattages differ, which affects light output.
The 1156 is a single-filament bulb rated at 12V and 21W, mounted on a BA15s bayonet base. Its single-filament design means it serves only one lighting function, unlike the dual-filament 1157 and 2057.
The BA15s base of the 1156 is not the same as the BAY15d base used by the 1157 and 2057. The two base types are not interchangeable, as the pin alignment and socket configuration differ between them.
The 1156 is specified exclusively for the Center High Mount Stop Light position on the Cutlass Salon, covering the 1986-1987 model years in that application.
For the 1985 Cutlass Salon Center High Mount Stop Light, the specification calls for the 2057 rather than the 1156 used in 1986-1987, indicating a change in the bulb type required for that position between the 1985 and 1986 model years.