Plymouth Arrow Pickup License Plate Bulb Size

The Plymouth Arrow Pickup license plate light requires a 168 bulb size for proper installation and function. Data for the bulb size covers the range from 1979 to 1982.

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
1979-1982	168

Bulb Specifications

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

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Additional Notes

The 1979-1982 Plymouth Arrow Pickup uses the 168 bulb for the license plate position across all four model years covered in these specifications.
The 168 bulb follows the ANSI standard recognized in both the United States and Canada, meaning it conforms to a defined set of electrical and physical criteria shared across North American markets.
This bulb operates at 12 volts, which is consistent with standard automotive electrical systems found in passenger vehicles and light trucks of that era.
The 168 bulb has a rated wattage of 4.9W, placing it in the low-wattage category typical of auxiliary lighting positions such as license plate illumination.
The 168 is classified as a T10 miniature wedge bulb. The T10 designation refers to the bulb's tubular envelope, and the wedge base type means it is held in its socket by the tension of the base itself rather than by a bayonet or screw mechanism.
The wedge base design of the 168 bulb is not interchangeable with bayonet-base or screw-base bulb types, even when voltage and wattage ratings may otherwise appear similar.