Chevrolet Camaro Radio Display Bulb Size

The Chevrolet Camaro radio display bulb comes in 3 sizes: 194, 1893, and 1816. A replacement chart covers vehicle production years spanning 1967 to 1989.

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
1979-1989	194
1978	1893
1974-1977	1816
1973	1445
1967-1972	1893

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, 2W.	1893
ANSI standard (US & Canada). Miniature wedge bulb (T3.25). 12V, 4W.	1816
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W.	1445

Other Locations

Additional Notes

The Chevrolet Camaro radio display uses four distinct bulb types across its 1967-1989 model years: the 194, 1893, 1816, and 1445.
The 194 bulb is the most frequently specified type, covering the Camaro's 1979-1989 radio display fitment across eleven consecutive model years.
The 194 is a T10 miniature wedge bulb rated at 12V and 3.78W, conforming to ANSI standards for the US and Canadian markets.
The 1893 bulb appears in the Chevrolet Camaro (1967-1972) and again in 1978, making it the second most recurring type in these specifications. It is a T5 miniature wedge bulb rated at 12V and 2W.
The T10 (194) and T5 (1893) designations refer to the bulb's tubular glass envelope width, with T10 being wider than T5. These two types are not interchangeable despite both using a wedge base, as the physical size and wattage differ.
The 1816 bulb is specified for the 1974-1977 model years. It is a T3.25 miniature wedge bulb rated at 12V and 4W, making it the highest-wattage bulb among the four types listed.
The 1445 bulb is unique among the four types in that it uses a BA9s bayonet base rather than a wedge base. Rated at 12V and 2W, it is specified solely for the 1973 Camaro radio display and is not interchangeable with any of the wedge-base types.
All four bulb types conform to ANSI standards applicable to the US and Canadian markets.