GMC Astro Back Up Light Bulb Size
The GMC Astro back up light utilizes a 1073 bulb size for illumination purposes. Available data for the specified component covers the range from 1984 to 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 | 1073 (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, 13W. | 1073 | Check Price |