Dodge D200 front and rear turn signal bulbs utilize 1157, 1034NA, 1157NA, and 198 sizes depending on location and model variation. The replacement chart covers 1975 through 1980 production years 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 Dodge D200 uses three distinct bulb types across its front and rear turn signal positions for the 1975-1980 model years: the 1157, 1034NA, and 1157NA for the front, and the 1157 and 198 for the rear.
The 1157 is the most frequently specified bulb across both positions, appearing in the front and rear turn signals for the 1979-1980 model years.
The 1157 is a dual-filament bulb rated at 12V with a 21W high filament and a 5W low filament, mounted on a BAY15d bayonet base, which allows it to serve both signaling and parking light functions within a single housing.
The 1034NA, specified for the front turn signal on the 1978-1977 Dodge D200, is a natural amber glass variant of the 1157 and shares the same BAY15d bayonet base and 12V, 21W/5W electrical ratings.
The 1157NA, specified for the front turn signal on the 1976 model, is also a natural amber glass dual-filament bulb with a BAY15d base and identical 12V, 21W/5W ratings, making it electrically equivalent to the 1157 and 1034NA.
Because the 1157, 1034NA, and 1157NA share the same BAY15d bayonet base and electrical ratings, they are physically interchangeable in the socket, though the amber glass variants produce a colored output without relying on an amber lens.
The 198 is a miniature wedge bulb of the T5 form factor, rated at 12V and 2W, which places it in a significantly lower power class than the dual-filament bulbs used elsewhere in the D200's turn signal system.
The 198 bulb is specified for the rear turn signal on the Dodge D200 across the 1975-1978 model years, and also appears as the front turn signal bulb for the 1975 model year.
The wedge base of the 198 is not compatible with the BAY15d bayonet socket used by the 1157, 1034NA, and 1157NA, meaning the front and rear sockets for certain model years are not interchangeable with one another.
A transition occurs between the 1978 and 1979 model years in the rear turn signal position, where the low-wattage 198 wedge bulb is replaced by the higher-wattage 1157 dual-filament bulb, reflecting a change in socket type as well as light output.