Ford Fiesta Seat Belt Warning Bulb Size

Ford Fiesta seat belt warning bulb uses a 194 size bulb for this component. The replacement chart covers vehicle production spanning 1979 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
1979-1980	194

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194

The 194 bulb is the seat belt warning bulb size for the Ford Fiesta across the 1979-1980 model years.
The 194 is classified as a miniature wedge bulb, using a T10 base, which is a wedge-style fitting that requires no separate metal socket pins, as the bulb's glass envelope itself acts as the contact point.
The 194 operates at 12 volts with a power draw of 3.78 watts, placing it in the low-wattage range typical of indicator and warning light applications.
The 194 bulb conforms to ANSI standards and is recognized across both the US and Canadian automotive markets, reflecting a standardized specification shared between the two regions.