Chevrolet Beretta Instrument Panel Bulb Size

The Chevrolet Beretta instrument panel utilizes unique bulb sizes 168, PC194, PC37, 194, and 74. Available data covers the range from 1987 through 1994.

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
1994	168
1993	PC194
1992	PC37
1991	PC194
1988-1990	194
1987	74

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168
ANSI standard (US & Canada). Miniature wedge bulb (T10) with printed circuit board twist-lock socket, for instrument clusters. 12V, 3.78W.	PC194
ANSI standard (US & Canada). Miniature wedge bulb (T5) with printed circuit board twist-lock socket, for instrument clusters. 12V.	PC37
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1.4W.	74

Other Locations

Additional Notes

The instrument panel bulbs specified for the Chevrolet Beretta across its 1987-1994 production span fall into five distinct ANSI-standard types: 168, PC194, PC37, 194, and 74. All are miniature wedge-base bulbs operating on a 12-volt electrical system.
The T10 wedge base is the most frequently specified form factor across the Beretta's instrument panel fitments, appearing in the 168, PC194, and 194 bulb types. The T5 wedge base is a smaller form factor and is used by the PC37 and 74 types.
The 194 bulb is a standard T10 miniature wedge type rated at 12V and 3.78W. It was the specified instrument panel bulb for the 1988-1990 model years.
The PC194 shares the same T10 wedge form factor and 3.78W rating as the 194, but incorporates a printed circuit board twist-lock socket designed specifically for instrument cluster applications. This socket difference makes the PC194 and 194 non-interchangeable despite their otherwise similar electrical characteristics. The PC194 was specified for the 1991 and 1993 model years.
The 168 bulb, specified for the 1994 model year, is also a T10 wedge type but is rated at 4.9W, making it the highest-wattage instrument panel bulb in these specifications. Its higher wattage distinguishes it electrically from the 194 and PC194 despite sharing the same base type.
The PC37, specified for the 1992 model year, is a T5 miniature wedge bulb with a printed circuit board twist-lock socket. No wattage value is listed for this type in the provided specifications.
The 74 bulb, used in the 1987 model year, is a T5 miniature wedge type rated at 1.4W, the lowest wattage among all bulbs specified for this vehicle. Its T5 base makes it physically incompatible with the T10 socket positions used in later model years.
The printed circuit board twist-lock socket found on the PC194 and PC37 types represents a distinct mounting interface from that of standard wedge bulbs. Substituting a non-PC bulb into a PC socket position, or vice versa, would result in an incompatible fitment regardless of base size similarity.