Chevrolet Bel Air Seat Belt Warning Bulb Size

The Chevrolet Bel Air seat belt warning light requires a 194 bulb size for proper installation within the instrument panel. Data for the specific component covers the range from 1973 to 1975.

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
1973-1975	194

Bulb Specifications

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

Other Locations

Additional Notes

The 194 bulb is the sole seat belt warning bulb size listed for the Chevrolet Bel Air across the 1973-1975 model years.
The 194 is classified as a miniature wedge bulb under the T10 form factor, a socketless design where the base of the glass envelope itself acts as the retaining element within the housing.
The bulb operates at 12 volts with a power draw of 3.78 watts, placing it in the low-wattage range typical of instrument panel and warning indicator applications.
The 194 designation follows ANSI standardization recognized in both the United States and Canada, meaning equivalently rated replacements from different manufacturers share the same electrical and physical specifications.