The Plymouth Cricket front and rear turn signal bulbs both utilize a 1156 bulb size. This replacement chart covers vehicle production spanning 1971 to 1974.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Plymouth Cricket uses the 1156 bulb for both its front and rear turn signals across the 1971-1974 model years.
The 1156 is a single-filament bulb, meaning it is dedicated to one lighting function rather than serving dual purposes such as combined stop and turn signaling.
The 1156 operates at 12 volts and 21 watts, which places it in the standard range for automotive turn signal applications of its era.
The 1156 uses a BA15s bayonet base, a single-contact fitting where the "s" denotes a single pin, as opposed to the dual-pin BA15d base found on some other automotive bulbs.
The 1156 conforms to ANSI standards and is recognized in both the United States and Canada, reflecting a standardized specification shared across North American markets.
Because the Plymouth Cricket (1971-1974) uses the same bulb type at all four turn signal positions, front and rear, the 1156 is fully interchangeable between those positions on this vehicle.
The BA15s base of the 1156 is not compatible with BA15d-based bulbs, as the pin configurations differ physically, making substitution with dual-contact bayonet bulbs incorrect for this application.