The Chevrolet Sprint front and rear turn signal bulbs utilize 1156 and 1157 sizes, with front applications requiring either bulb size and rear applications using 1157 or 1156 bulbs. The replacement chart covers 1985 to 1987 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 Sprint uses two distinct bulb types across its front and rear turn signal positions for the 1985-1987 model years: the 1156 and the 1157.
The 1156 is a single-filament bulb rated at 12V and 21W, fitted with a BA15s bayonet base, and is recognized under the ANSI standard in both the United States and Canada.
The 1157 is a dual-filament bulb rated at 12V with filaments drawing 21W and 5W respectively, fitted with a BAY15d bayonet base, and also carries ANSI standard recognition in the United States and Canada.
The BA15s base of the 1156 and the BAY15d base of the 1157 are physically distinct and not interchangeable, as the BAY15d features offset locating pins designed to prevent incorrect installation of a single-filament bulb in a dual-filament socket.
For the 1987 Chevrolet Sprint, the front turn signal takes a 1156 while the rear turn signal takes a 1157, meaning the front and rear positions require different bulb types in that model year.
For the 1985-1986 Sprint, the front turn signal takes a 1157 while the rear turn signal takes a 1156, which is the reverse of the 1987 arrangement.
Because the front and rear positions swap bulb types between the 1987 model year and the 1985-1986 model years, confirming the specific year before installation is necessary to avoid a fitment mismatch.