Mack MRU Turn Signal Bulb Size
The Mack MRU rear turn signal bulb size is 1157, a specification applicable to the vehicle model across its production range. Replacement bulb data within the chart covers 2011 through 2017.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Rear Turn Signal
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 2011-2017 | 1157 | P21/5W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 | Check Price |
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W | Check Price |