The Autocar S uses a 97 bulb size for both front and rear side marker applications. The replacement chart covers 1981 to 1983 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 Autocar S uses the 97 bulb for both front and rear side marker positions across the 1981-1983 model years.
The 97 is an ANSI-standardized bulb recognized in both the United States and Canada, operating at 12 volts with a 13-watt output.
It is a single-filament bulb, meaning it serves one lighting function rather than combining two, such as running and braking, into a single unit.
The 97 uses a BA15s bayonet base, which is a single-contact bayonet mount that locks into its socket with a twist rather than a threaded connection.
The 97 is a variant of the more widely known 1156 bulb type, though the two are not necessarily interchangeable despite their shared base design, as wattage and voltage ratings may differ between variants.
Because the same bulb number applies to all six positions covered in the specifications, front and rear side marker sockets on the Autocar S accept the same bulb type for the 1981-1983 model years.