Plymouth Turismo 2.2 front and rear turn signal bulbs use either 1157 or 2057 size specifications. The replacement chart covers 1983 to 1986 production years with corresponding bulb size data.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The two bulb types specified for the Plymouth Turismo 2.2 are the 1157 and the 2057, both of which are ANSI-standard dual-filament bulbs rated at 12 volts and fitted with a BAY15d bayonet base.
A dual-filament bulb contains two separate filaments within a single envelope, allowing one circuit to handle turn signaling at higher wattage while the other handles a lower-wattage running or parking light function.
The BAY15d bayonet base is a two-pin offset base, where the two pins are positioned at different heights to ensure the bulb is inserted in the correct orientation, aligning each filament with its intended circuit.
The 1157 operates at 21W for its high-intensity filament and 5W for its low-intensity filament, while the 2057 operates at 26.9W and 8W respectively, making the 2057 the higher-wattage variant of the two.
Although the 1157 and 2057 share the same BAY15d base and voltage rating, their wattage outputs differ, and substituting one for the other may affect light intensity and could place unintended electrical load on the circuit.
The front turn signal of the Plymouth Turismo 2.2 used the 2057 bulb for 1983-1984 and transitioned to the 1157 for 1985.
The rear turn signal followed a similar pattern, with the 2057 specified for 1983-1984 and the 1157 specified for 1985-1986.
The 1986 model year is represented only in the rear turn signal position, with no corresponding front turn signal entry for that year.