Plymouth Sundance front and rear turn signal bulbs utilize a 2057 bulb size across both locations. The replacement chart covers vehicle production spanning 1987 to 1994.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Plymouth Sundance uses the 2057 bulb for both its front and rear turn signals across all model years from 1987-1994.
The 2057 is an ANSI-standardized bulb type, meaning its specifications are governed by a recognized industry standard applicable in both the United States and Canada.
The 2057 is a dual-filament bulb, which means it contains two separate filaments within a single housing, allowing it to serve more than one lighting function.
The 2057 uses a BAY15d bayonet base, a two-pin offset base design that physically locks the bulb into its socket through a twist-and-seat motion.
The 2057 operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles of the Sundance's era.
The two filaments in the 2057 draw 26.9 watts and 8 watts respectively, with the higher-wattage filament typically associated with the brighter turn signal or stop light function.
The 2057 is described as a brighter variant of the 1157 bulb. Both share the BAY15d base, which means the 1157 is physically interchangeable in terms of socket fitment, though its lower output differs from the 2057's rated wattage.
Because the Plymouth Sundance specifies the 2057 for both front and rear positions, a single bulb type serves the entire turn signal circuit on the vehicle.