Ford F-150 Radio Display Bulb Size

The Ford F-150 radio display requires a unique 1893 bulb size for the internal illumination components. Data for the specific lighting requirements covers the range from 1975 to 1986.

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 Type	Shop
1985-1986	1893	Check Price
1975-1979	1893	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W.	1893	Check Price

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Additional Notes

The 1893 is the sole radio display bulb size listed for the Ford F-150 across all model years in these specifications.
The 1893 bulb is an ANSI-standardized type, meaning its physical and electrical characteristics conform to a defined North American specification recognized in both the United States and Canada.
It belongs to the T5 form factor, a miniature wedge-base bulb in which the wedge-shaped base of the lamp itself acts as the connector, requiring no separate metal socket pins.
The T5 designation refers to a bulb body width of five-eighths of an inch, which places it among the smallest bulb sizes used in automotive instrument and display applications.
The 1893 operates at 12 volts and consumes 2 watts, consistent with low-draw indicator and display lighting in vehicle interiors.
The Ford F-150 radio display used the 1893 bulb across the 1975-1979 model years and again in 1985-1986.
The wedge-base design of the 1893 is not interchangeable with bayonet-base or screw-base miniature bulbs, even when voltage and wattage ratings are otherwise similar.
A replacement bulb must match the T5 wedge-base form factor to seat correctly in the radio display socket without modification.