Chevrolet Blazer License Plate Bulb Size

The Chevrolet Blazer license plate light utilizes 194, 192, 67, and 97 bulb sizes across various production periods. Available data for the specified lighting components covers the range from 1974 to 2020.

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
2019-2020	194
2000-2003	192
1995-1999	194
1994	67
1993	194
1992	194 (With Sealed Beam Headlamps)
1987-1991	67
1974	97

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3W.	192
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W.	67
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 13W.	97

Other Locations

Additional Notes

The 194 bulb is the most frequently specified size across the Chevrolet Blazer license plate bulb data, appearing in model years 1992-1993, 1995-1999, and 2019-2020. It is an ANSI-standard miniature wedge bulb in the T10 form factor, rated at 12V and 3.78W.
The 192 bulb shares the same T10 wedge form factor as the 194 but draws less power at 3W versus 3.78W. It is specified for the 2000-2003 model years.
Because the 192 and 194 bulbs share the T10 wedge base, physical fitment between the two is possible, though their wattage ratings differ. Substitution between them may not be appropriate for all applications.
The 67 bulb uses a BA15s bayonet base rather than a wedge base, making it physically incompatible with sockets designed for T10 wedge bulbs. It is rated at 12V and 8W, and is specified for the Chevrolet Blazer in 1987-1991 and 1994.
The 97 bulb also uses a BA15s bayonet base and is rated at 12V and 13W, making it the highest-wattage bulb in these specifications. It is listed solely for the 1974 model year.
The 67 and 97 bulbs are both single-filament BA15s bayonet-base variants related to the 1156 bulb family, but their wattage ratings differ substantially, and they are not interchangeable with the wedge-base 192 or 194 bulbs.
The 1992 model year carries a conditional note specifying the 194 bulb only for vehicles equipped with sealed beam headlamps, indicating that a trim or equipment variation affects the applicable bulb size for that year.