GMC C15 Suburban Tail Light Bulb Size
The GMC C15 Suburban tail light bulb size chart specifies 2 bulb sizes: 198 and 1034, with each size serving distinct functions in the rear lighting assembly. The replacement chart covers vehicle production years spanning 1967 to 1978.
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 |
|---|---|---|
| 1969-1978 | 198 | Check Price |
| 1967-1968 | 1034 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W. | 198 | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W. | 1034 | Check Price |