Chevrolet Caprice Ignition Light Bulb Size

The Chevrolet Caprice ignition light requires bulb size 168, 1895, or 1445 depending on the specific configuration of the vehicle. Data for the listed components covers the range from 1966 to 1985.

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
1985	168
1968	1895
1966-1967	1445

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 0.9W.	1895
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W.	1445

Other Locations

Additional Notes

The 1445 bulb is specified for the Chevrolet Caprice across the 1966-1967 model years, making it the most consistently recurring ignition light bulb type within these specifications.
The 1445 is a single-filament bulb with a BA9s bayonet base, rated at 12V and 2W. The BA9s base uses a 9mm bayonet fitting, which is a smaller form factor than the more widely encountered BA15s base found in many other automotive applications.
The 168 bulb is specified for the 1985 Caprice. It is a T10 miniature wedge type, rated at 12V and 4.9W, and carries ANSI standardization for the US and Canadian markets. The wedge base design relies on the bulb's glass envelope and wire leads to form the electrical connection, with no separate metal base.
The 1895 bulb is specified for the 1968 Caprice. It is a T5 miniature wedge type, rated at 12V and 0.9W. At 0.9W, it draws notably less power than either the 168 or the 1445, reflecting its smaller T5 envelope size.
All three bulb types in these specifications conform to ANSI standards applicable in both the United States and Canada, indicating consistent regulatory compliance across the listed model years.
The three bulb types, 168, 1895, and 1445, are not interchangeable with one another. They differ in base type, envelope size, and wattage, meaning a fitment intended for one model year is not a direct substitute for another.