Mack RWL Instrument Panel Bulb Size
The Mack RWL instrument panel requires 3 distinct bulb sizes: 57, 161, and 194, with each size serving specific lighting functions within the dashboard assembly. The replacement chart covers vehicle production spanning 1981 to 1985, detailing bulb specifications for each model year during this period.
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 |
|---|---|
| 1983-1985 | 57 |
| 1982 | 161 |
| 1981 | 194 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 1W. | 57 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 1W. | 161 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |