GMC C25 Light Bulb Size Chart

The GMC C25 uses light bulb sizes including 198, H6024, 168, 105, and 211-2. A replacement chart covers 1975 to 1978 model years across 13 lighting locations. Each location entry specifies the applicable model years and corresponding bulb size.

Select a light bulb location for GMC C25 to view detailed replacement information.