GMC Astro Courtesy Bulb Size
The GMC Astro courtesy light requires a 67 bulb size for the interior lighting system. Data for the specified component covers the period from 1984 through 1988.
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 |
|---|---|---|
| 1984-1988 | 67 (Tiltmaster) | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W. | 67 | Check Price |