Chevrolet Blazer Dome Light Bulb Size

The Chevrolet Blazer dome light utilizes bulb sizes 562 and 211-2 for interior illumination. Data for the specified components covers the range from 1974 through 2003.

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 Type	Shop
1998-2003	562	Check Price
1997	562 (Front)	Check Price
1997	211-2 (Rear Center)	Check Price
1993-1996	211-2	Check Price
1987-1991	211-2	Check Price
1974	211-2	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W.	562	Check Price
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	211-2	Check Price

Other Locations

Additional Notes

The 562 and 211-2 are both festoon-type bulbs, meaning they are cylindrical lamps that mount horizontally between two spring-loaded contacts or a fixed base within the dome light housing.
Both bulb types operate at 12 volts and 12 watts, placing them in the same electrical category despite their physical differences.
The 562 bulb measures 44mm in length and uses end-cap contacts, where the electrical connection is made at each end of the bulb body rather than through a dedicated base.
The 211-2 bulb measures 41mm in length and uses an SV8.5 base, a standardized festoon base type that positions the bulb within a specific socket configuration.
The 3mm difference in length between the 562 and 211-2 makes them physically non-interchangeable, even though their voltage and wattage ratings are identical.
The Chevrolet Blazer (1997) is the only model year in these specifications that requires two different dome light bulbs, with the 562 designated for the front position and the 211-2 for the rear center position.
The 562 bulb applies to the 1998-2003 model years, while the 211-2 applies to 1974 and the 1987-1996 range, with 1997 requiring both types depending on position.