Ford B-600 Radio Display Bulb Size

The Ford B-600 radio display utilizes a single 1893 bulb size for illumination across all listed vehicle applications. Data for the specific component covers a continuous range from 1985 through 1994.

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
1985-1994	1893

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W.	1893

Other Locations

Additional Notes

The Ford B-600 radio display uses the 1893 bulb across the 1985-1994 model years.
The 1893 is classified as a T5 miniature wedge bulb, a form factor defined by a wedge-shaped base that connects directly into a socket without a separate metal base or pins.
The 1893 bulb operates at 12 volts and draws 2 watts, placing it in the low-power range typical of instrument and display illumination applications.
The 1893 carries ANSI standardization recognized in both the United States and Canada, meaning its electrical and physical characteristics conform to a defined North American specification.
The T5 designation refers to the bulb envelope width, expressed in units of one-eighth of an inch, making the glass envelope five-eighths of an inch wide.
The wedge base design of the 1893 means fitment depends on socket compatibility with that specific base type, and bulbs with pin-style or bayonet bases are not interchangeable with it.