GMC C15 Parking Light Bulb Size
The GMC C15 parking light bulb uses 3 distinct sizes: 198, 97, and 67, with each size corresponding to specific vehicle configurations. The replacement chart covers 1967 through 1978 production years and details the bulb size specifications for each model year.
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 |
|---|---|
| 1973-1978 | 198 |
| 1969-1972 | 97 |
| 1967-1968 | 67 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W. | 198 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 13W. | 97 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W. | 67 |