International L121 Tail Light Bulb Size
The International L121 tail light uses bulb size 198 for illumination purposes. Data for 198 bulb size requirements covers the period from 1950 through 1952.
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 |
|---|---|
| 1950-1952 | 198 (Light Duty) |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W. | 198 |