Chevrolet El Camino Radio Display Bulb Size

The Chevrolet El Camino radio display utilizes unique bulb sizes 194, 73, 37, 1816, 1893, and 1891 depending on the specific production period for the vehicle. Available data covers the range from 1959 through 1986 for the components listed in the provided 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

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
1986	194	W5W	Check Price
1984-1985	73	73	Check Price
1980-1983	194	W5W	Check Price
1974-1977	37	37	Check Price
1971-1973	1816	1816	Check Price
1964-1970	1893	1893	Check Price
1959-1960	1891	1891	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194	Check Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with W2.1x9.5d wedge base. 12V, 5W.	W5W	Check Price
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1.4W.	73	Check Price
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1W.	37	Check Price
ANSI standard (US & Canada). Miniature wedge bulb (T3.25). 12V, 4W.	1816	Check Price
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W.	1893	Check Price
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W.	1891	Check Price

Other Locations

Additional Notes

The Chevrolet El Camino radio display bulb specifications span model years 1959 through 1986, with six distinct bulb types appearing across that range: the 194, 73, 37, 1816, 1893, and 1891.
The 1893 bulb is the most frequently specified type in these records, covering the El Camino from 1964 through 1970. It is a T5 miniature wedge bulb rated at 12V and 2W under the ANSI standard.
The 194 bulb is the second most recurring type, fitted to the 1980-1983 and 1986 model years. It operates as a T10 miniature wedge bulb at 12V and 3.78W, making it the highest-wattage bulb among those listed.
The 1891 bulb, specified for the 1959 and 1960 model years, shares the same T5 form factor and 12V/2W electrical rating as the 1893. Despite these similarities, the two carry different ANSI designations and are not confirmed as interchangeable in these specifications.
The 37 and 1893 bulbs both occupy the T5 form factor, yet they differ in wattage. The 37 is rated at 1W while the 1893 draws 2W, a distinction relevant to fitment decisions.
The 73 bulb, specified for the 1984-1985 Chevrolet El Camino, is a T5 miniature wedge type rated at 12V and 1.4W. Its wattage places it between the 37 (1W) and the 1893 (2W), though all three share the T5 designation.
The 1816 bulb, used in the 1971-1973 model years, is the only T3.25 miniature wedge type in these specifications. At 12V and 4W, it is the highest-wattage bulb listed and occupies a physically distinct envelope size from the T5 and T10 types.
The T5 designation appears across four different ANSI bulb numbers in these specifications: the 37, 73, 1893, and 1891. Shared envelope size alone does not establish interchangeability, as wattage and base configuration may differ.
A gap exists in the listed model years between 1977 and 1980, and between 1960 and 1964, meaning no bulb data for those intervening years is present in these specifications.
All six bulb types listed carry ANSI designations valid for both the United States and Canada, indicating standardized ratings applicable across both markets.