A modular headlamp assembly includes a low beam headlamp module, a high beam headlamp module, and front turn/parking lamp module. The low beam headlamp module and the high beam headlamp module are supported by a reflector carrier. Each of the high and low beam headlamp modules includes a heat sink and mounting assembly with a heat sink portion bisecting a reflector member. The reflector carrier is adjustably fastened to a housing to allow for adjustment of the high and low beam headlamp modules within the modular headlamp assembly.
