Dodge Aries front and rear side marker bulbs utilize 168 and 2057 bulb sizes for the specified applications. The replacement chart covers 1981 through 1989 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 Aries uses the 168 bulb for the front side marker across all listed model years, spanning 1981-1989.
The 168 is an ANSI-standard miniature wedge bulb in the T10 form factor, rated at 12V and 4.9W, common in low-draw marker light applications.
The rear side marker on the Dodge Aries follows the same 168 specification for most years, with the exception of 1982 and 1983, which use the 2057 instead.
The 2057 is a dual-filament bulb with a BAY15d bayonet base, rated at 12V with a 26.9W high filament and an 8W low filament, making it significantly more powerful than the 168.
Because the 168 uses a wedge base and the 2057 uses a BAY15d bayonet base, the two bulbs are not physically interchangeable despite both being 12V types.
The wattage difference between the 168 (4.9W) and the 2057 (26.9W/8W) reflects a fundamental difference in bulb class, with the 2057 typically associated with stop and tail light functions rather than low-intensity marker duties.
The 2057 is described as a brighter variant of the 1157, sharing the same BAY15d base but with a higher-output primary filament, which distinguishes it from the more common 1157 found in many other applications.
The front side marker position on the Aries shows no variation in bulb type across the entire 1981-1989 span, while the rear position reflects a socket or housing difference specific to the 1982-1983 model years.