Mack WL Engine Compartment Light Bulb Size
The Mack WL engine compartment light requires a 912 bulb size for proper illumination in the engine bay. The replacement chart covers 1982 to 1983 vehicle production years with corresponding bulb specifications.
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 |
|---|---|
| 1982-1983 | 912 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Wedge bulb (T15). Variant of 921. 12V, 12W. | 912 |