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
If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 1983-1985 | 57 | 57 | Check Price |
| 1982 | 161 | 161 | Check Price |
| 1981 | 194 | W5W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 1W. | 57 | Check Price |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 1W. | 161 | Check Price |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 | Check Price |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with W2.1x9.5d wedge base. 12V, 5W. | W5W | Check Price |