The Dodge D250 front turn signal uses bulb sizes 2057NA, 2057, or 1157, while the rear turn signal requires either 2057 or 1157 bulb size. The replacement chart covers vehicle production years spanning 1981 to 1993.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Dodge D250 front and rear turn signals draw from three bulb types across the 1981-1993 model range: the 1157, the 2057, and the 2057NA.
All three bulb types share the BAY15d bayonet base, which means the physical mounting interface is identical across all of them.
The 1157 operates at 12V with a dual-filament output of 21W on the high filament and 5W on the low filament, making it the lower-output option among the three types listed.
The 2057 and 2057NA both operate at 12V with a dual-filament output of 26.9W and 8W respectively, representing a higher output than the 1157 on both filaments.
The 2057NA is distinguished from the 2057 by its natural amber glass, which produces an amber signal output directly from the bulb rather than relying on a colored lens.
Because the 1157 and 2057 share the BAY15d base, a 2057 can physically seat in a socket designed for a 1157, though the wattage difference is a relevant fitment consideration.
The front turn signal of the Dodge D250 used the 1157 across 1986-1990, representing the longest uninterrupted run of a single bulb type in the front position within this specification set.
The 2057NA appears exclusively in the front turn signal position, specifically for the 1991 and 1993 model years, and is not listed for any rear turn signal application on this vehicle.
The rear turn signal for the 1991 Dodge D250 specifies the 1157, while the front for the same year specifies the 2057NA, indicating that front and rear positions do not always share the same bulb type within a given model year.
The 1992 model year is one of the few in this specification set where both the front and rear turn signal positions share the same bulb type, the 2057.