Chevrolet Chevy II Ignition Bulb Size

The Chevrolet Chevy II ignition requires bulb size 1445 or 53 depending on the specific version of the vehicle. Data for the lighting components covers the range from 1962 through 1968.

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
1964-1968	1445
1962-1963	53

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W.	1445
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W.	53

Other Locations

Additional Notes

The Chevrolet Chevy II uses two bulb types across its model years for the ignition position: the 1445 and the 53.
Both the 1445 and 53 are ANSI-standard bulbs rated for use in the US and Canada, each operating at 12 volts and 2 watts with a single filament.
Both bulb types share the BA9s base, a miniature bayonet cap with a 9mm body width, commonly found in instrument and indicator lighting applications.
The 1445 bulb was fitted to the Chevrolet Chevy II from 1964-1968, covering five consecutive model years.
The 53 bulb was specified for the 1962-1963 model years, representing the earlier fitment in the Chevy II's production run.
Although the 1445 and 53 share identical electrical ratings and the same BA9s base, they carry distinct ANSI part numbers, which indicates a physical difference between the two that affects direct interchangeability.