Chevrolet Bel Air Clock Light Bulb Size

Chevrolet Bel Air clock light bulb sizes include 194, 1895, and 1816 configurations for this vehicle model. The replacement chart covers 1953 through 1970 production years with corresponding bulb size specifications.

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
1968-1970	194
1964-1967	1895
1961-1963	1816
1960	257
1960	57
1959	57
1958	257
1958	57
1955-1957	67
1953-1954	63

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 0.9W.	1895
ANSI standard (US & Canada). Miniature wedge bulb (T3.25). 12V, 4W.	1816
ANSI standard (US & Canada). Festoon or BA9s base instrument bulb. 12V, 2W.	257
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 1W.	57
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W.	67
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 0.63W.	63

Other Locations

Additional Notes

The Chevrolet Bel Air clock light uses three distinct bulb base types across its production years: wedge, BA9s, and BA15s bayonet bases.
The 194 bulb, a T10 miniature wedge rated at 12V and 3.78W, fits the 1968-1970 Bel Air clock light.
The 1895 bulb is a T5 miniature wedge rated at 12V and 0.9W, making it the lowest-wattage wedge bulb in these specifications at under one watt.
The 1816 bulb, a T3.25 miniature wedge rated at 12V and 4W, is the highest-wattage wedge-base bulb across all listed Bel Air clock light applications.
The 1960 and 1958 Bel Air clock light positions list two bulb sizes each, the 57 and the 257, indicating that two bulbs of different wattages were used simultaneously in those model years.
The 57 and 257 bulbs share the same BA9s base type, though the 257 is rated at 2W compared to the 57 at 1W, meaning the two are not interchangeable without accounting for the wattage difference.
The 67 bulb, used in the 1955-1957 Bel Air, carries a BA15s bayonet base and is rated at 12V and 8W, which is the highest wattage of any bulb in these clock light specifications.
The 63 bulb, fitted to the 1953-1954 Bel Air, is rated at just 0.63W, making it the lowest-wattage bulb across all listed clock light applications.
All seven bulb types in these specifications conform to ANSI standards applicable in both the United States and Canada.
The wedge base format, represented by the 194, 1895, and 1816 bulbs, does not use a separate metal base component, as the glass envelope itself forms the electrical contact points.