American Motors Eagle front and rear turn signal bulbs utilize 2057 and 1157 sizes. The replacement chart covers 1980 to 1988 vehicle production years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The American Motors Eagle uses two bulb types across its turn signal positions: the 2057 and the 1157, both of which are ANSI-standardized dual-filament bulbs recognized in the US and Canada.
Both the 2057 and 1157 share the BAY15d bayonet base, a two-pin offset base design that physically allows one bulb to seat in a socket intended for the other.
Despite the shared base type, the 2057 and 1157 are not electrically identical. The 2057 operates at 26.9W on its high filament and 8W on its low filament, while the 1157 operates at 21W and 5W respectively, both at 12 volts.
The 2057 is the brighter of the two bulb types, producing more output on both filaments than the 1157 under the same 12V supply.
The American Motors Eagle (1983-1988) specifies the 2057 for both the front and rear turn signal positions across all six of those model years.
The 1157 was specified for both the front and rear turn signal positions on the 1980-1981 Eagle, representing the earlier fitment standard for this model.
The front and rear turn signal positions share the same bulb specification in every model year covered, meaning no asymmetry exists between front and rear fitment requirements.
The transition from the 1157 to the 2057 occurred between the 1981 and 1983 model years, with the 2057 remaining the specified bulb through the final 1988 model year.