Mack R License Plate Bulb Size
The Mack R license plate bulb uses a 1891 size bulb for this truck model. The replacement chart covers vehicle production years spanning 1981 to 1991.
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 |
|---|---|---|
| 1981-1991 | 1891 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W. | 1891 | Check Price |