Chevrolet Caprice Ignition Bulb Size

The Chevrolet Caprice ignition uses bulb size 168, bulb size 1895, and bulb size 1445 depending on the specific application. 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 ignition of the Chevrolet Caprice across the 1966-1967 model years, making it the most consistently recurring bulb type in these specifications.
The 1445 operates at 12V and draws 2W, using a single-filament design with a BA9s bayonet base, a small-pin bayonet fitting common in low-power indicator applications.
The 1985 Caprice uses the 168 bulb, a T10 miniature wedge type rated at 12V and 4.9W, which is among the higher wattage values present across these ignition bulb entries.
The T10 wedge base of the 168 bulb is not interchangeable with the BA9s base of the 1445, as the two use fundamentally different mounting and contact systems.
The 1968 Caprice uses the 1895 bulb, a T5 miniature wedge type rated at 12V and 0.9W, the lowest wattage value found in these specifications.
The T5 form factor of the 1895 is physically smaller than the T10 form factor of the 168, and the two wedge bulbs are not interchangeable despite sharing the same wedge base style.
All three bulb types, the 168, 1895, and 1445, conform to ANSI standards applicable in both the United States and Canada.
The BA9s base of the 1445 bulb is a bayonet-style fitting, which differs mechanically from the wedge-style bases used by both the 168 and 1895, precluding any cross-substitution between the 1445 and the other two types.