American Motors Classic front and rear turn signal bulbs utilized 1157 and 1034 bulb sizes across the vehicle's production span. The replacement chart covers 1961 through 1966 model 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 American Motors Classic uses two bulb types across its model years for turn signal applications: the 1157 and the 1034, both of which are ANSI-standardized for the US and Canadian markets.
Both the 1157 and 1034 are dual-filament bulbs, meaning each serves two lighting functions within a single housing, typically combining a brighter turn signal filament with a lower-intensity running or parking light filament.
Both bulb types share the BAY15d bayonet base, a two-pin offset base design that physically locks the bulb into its socket with a twist.
Both the 1157 and 1034 operate at 12 volts with a 21W/5W filament rating, where the higher wattage corresponds to the turn signal filament and the lower wattage to the secondary filament.
The 1034 is classified as a variant of the 1157. Despite sharing the same base type and wattage rating, the two are not confirmed interchangeable, and fitment should follow the year-specific specification.
The American Motors Classic (1961-1963) uses the 1034 bulb for both front and rear turn signals across all positions.
The 1157 bulb applies to the 1964-1966 Classic for both front and rear turn signals, replacing the 1034 used in earlier model years.
The front and rear turn signal positions share the same bulb specification for every model year listed, meaning no asymmetric fitment exists between the two positions on this vehicle.