Chevrolet Celebrity Seat Belt Warning Bulb Size

Additional Notes

• The seat belt warning bulb position on the Chevrolet Celebrity uses two distinct bulb sizes across its production run: the 194 and the 168, both of which are ANSI-standardized miniature wedge bulbs classified under the T10 form factor.
• Both the 194 and 168 bulbs operate at 12 volts and share the same T10 wedge base, which means they are physically interchangeable in terms of socket fit.
• Despite sharing the same base type and voltage rating, the 194 and 168 differ in wattage. The 194 draws 3.78 watts, while the 168 draws 4.9 watts, making them electrically distinct.
• The higher wattage of the 168 bulb means it produces more heat and draws more current than the 194, which is a relevant consideration for socket and circuit compatibility even when physical fitment is possible.
• The 194 bulb is specified for the Chevrolet Celebrity across the 1982-1983 and 1985-1990 model years for the seat belt warning position.
• The 168 bulb is specified exclusively for the 1984 Chevrolet Celebrity in the seat belt warning position, representing a single-year deviation from the otherwise consistent 194 fitment.
• Both bulb types carry ANSI standardization applicable to the US and Canadian markets, indicating they conform to a defined performance and construction standard rather than being proprietary specifications.
• The T10 wedge base design requires no separate bulb holder or locking mechanism, as the wedge shape itself secures the bulb within the socket through friction.