The Dodge Challenger side marker requires a 168 bulb size for the specific lighting components located on the exterior of the vehicle. Data provided for the bulb specifications covers the range from 2008 through 2014.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Dodge Challenger uses three distinct bulb types across its side marker positions: the 168, 194, and 1893, all of which are ANSI-standardized miniature wedge bulbs rated for 12V systems.
The 168 and 194 are both T10 wedge bulbs, meaning they share the same physical base form factor, though they differ in wattage. The 168 draws 4.9W while the 194 draws 3.78W.
Because the 168 and 194 share a T10 wedge base, they are physically interchangeable in terms of socket fit, but their wattage ratings differ, which affects electrical load on the circuit.
The 1893 is a T5 wedge bulb rated at 2W, a smaller form factor than the T10-based 168 and 194, making it incompatible with T10 sockets without an adapter.
For the Dodge Challenger (2008-2014), both the front and rear side marker positions use the 168 bulb exclusively.
Model years 1978-1983 use the 194 bulb in both front and rear side marker positions.
The 1973-1974 model years use the 168 bulb in both front and rear side marker positions.
The front side marker for 1970-1972 uses the 194 bulb, while the rear side marker diverges by model year: 1972 uses the 194, and 1970-1971 uses the lower-wattage 1893 T5 bulb.
The 1893 bulb appears exclusively in the rear side marker position and only in the 1970-1971 model years, making it the least common bulb type across the full specification range.
Installers sourcing replacements for 1970-1971 rear side markers should note that the 1893 T5 form factor is physically distinct from the T10 bulbs used in all other Challenger side marker positions across these specifications.