International R121 Tail Light Bulb Size
The International R121 tail light utilizes a 198 bulb size for the rear lighting assembly. Data for the specified vehicle 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 |
|---|---|
| 1953-1955 | 198 (Light Duty) |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W. | 198 |