International R121 Instrument Panel Bulb Size
The International R121 instrument panel requires 1445 or 194 bulb sizes depending on the specific production period. Data for the specified components covers the range from 1953 to 1955.
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 |
|---|---|
| 1954-1955 | 1445 (Light Duty) |
| 1953 | 194 (Light Duty) |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W. | 1445 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |