Dodge Aspen License Plate Bulb Size

The Dodge Aspen license plate light requires a 168 bulb size for proper installation and function. Data for the bulb specifications covers the range from 1976 to 1980.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
1976-1980	168

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168

Other Locations

Additional Notes

The Dodge Aspen uses the 168 bulb for its license plate position across the 1976-1980 model years.
The 168 is an ANSI-standardized bulb recognized in both the United States and Canada, operating at 12 volts and consuming 4.9 watts.
The 168 belongs to the T10 miniature wedge family, a form factor defined by its wedge-shaped base, which connects directly into a socket without a separate metal cap or pins.
The T10 designation refers to the bulb's tubular glass envelope, with the numeric portion indicating a width of 10 eighths of an inch across the widest point of the glass.
At 4.9 watts, the 168 is a low-wattage bulb suited to illumination tasks that do not require high output, such as license plate lighting.
The wedge base design of the 168 means fitment depends on socket compatibility with the T10 wedge format; bulbs sharing this base type are physically interchangeable only when voltage and wattage ratings are also compatible with the vehicle's circuit.