GMC K1500 Suburban Map Light Bulb Size

The GMC K1500 Suburban map light requires bulb sizes 211-2 and 168 for the interior lighting system. Available data for the specified components covers the range from 1992 to 1999.

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
1997-1999	211-2
1996	168
1995	211-2
1993-1994	168
1992	211-2

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	211-2
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168

Other Locations

Additional Notes

The GMC K1500 Suburban map light uses two distinct bulb types across its 1992-1999 model years: the 211-2 and the 168.
The 211-2 is a festoon-style bulb with an SV8.5 base and a 41mm length, operating at 12V and drawing 12W.
The 168 is a T10 miniature wedge bulb, operating at 12V and drawing 4.9W, making it significantly lower in wattage than the 211-2.
Both bulb types conform to ANSI standards applicable in the United States and Canada.
The 211-2 and 168 use physically incompatible bases, as the SV8.5 festoon base and the T10 wedge base are not interchangeable.
The GMC K1500 Suburban requires the 168 bulb for the 1993, 1994, and 1996 map light positions.
The 211-2 bulb is specified for the 1992, 1995, and 1997-1999 model years.
The bulb type alternates between model years in several instances, meaning the correct bulb size cannot be assumed based on a nearby model year alone.