PN: 499-109278  
7” round LED with a heated lens headlight assembly
It is closed back with a galvanized metal housing and the standard Mack cable and connector.  It is a direct upgrade for Mack #25023803 and #84081681 headlight assemblies.  Can be used for other Mack and 7” round headlights vehicles.  This will also fit Hummer / Humvee vehicles.