Blue Bird All American FE front and rear turn signal bulb size options include 1157, 1073, and 1156 bulb configurations. The replacement chart covers vehicle production years from 2000 to 2018 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 Blue Bird All American FE uses three distinct bulb types across its turn signal positions: the 1157, 1073, and 1156, all of which conform to ANSI standards recognized in the United States and Canada.
The 1157 is a dual-filament bulb operating at 12V with a 21W main filament and a 5W secondary filament, mounted on a BAY15d bayonet base. Its dual-filament design allows it to serve both signaling and running light functions within a single housing.
The 1156 is a single-filament bulb rated at 12V and 21W, using a BA15s bayonet base. It shares the same wattage as the primary filament of the 1157 but lacks a secondary filament entirely.
The 1073 is also a single-filament bulb with a BA15s bayonet base, operating at 12V and 13W. It draws less power than the 1156 despite sharing the same base type, which means the two are not electrically equivalent even though they are physically compatible in terms of socket fit.
The Blue Bird All American FE uses the 1157 for both front and rear turn signals across the 2013-2018 model years, as well as the 2010 model year.
The 1073 is specified for both front and rear turn signal positions on the 2011-2012 model years. Substituting a higher-wattage single-filament bulb such as the 1156 into a socket designed for the 1073 may affect flasher relay timing due to the difference in resistance.
Model years 2000-2003 use the 1156 for both front and rear turn signals. The 1156 and 1073 share the BA15s base, but their wattage difference means they are not direct drop-in replacements for one another without potential electrical consequences.
The BAY15d base of the 1157 has two offset pins at different heights, which physically prevents it from being inserted into a BA15s socket. This makes the 1157 mechanically incompatible with sockets designed for the 1156 or 1073.
Front and rear turn signal bulb specifications are identical for every model year listed, meaning the same bulb type is used in both positions within any given year.
The 1157 is the most frequently specified bulb across the listed model years, appearing in both front and rear positions for a total of eight of the thirteen model years represented in the data.