Abstract: A front-discharge transit concrete mixer utilizes a cab-around-engine chassis which is standard except for the cab roof, over which a mixer barrel extends. The cab roof over the engine enclosure has a fore-and-aft channel to accommodate the barrel extension. Although the channel is cut away deeply at the rear, to permit the cab to be tilted forward, no seating space is lost. A discharge funnel which receives concrete mix from the barrel extension is mounted forward and above the cab roof by structure which includes girders flanking the barrel extension which sweep aft, above the cabin and then downward to mounts off of the cab. In the preferred embodiment the forward ends of the girders are secured to forward structure, on which the charging and discharge apparatus is mounted, such forward structure including columns mounted at each side of the front of the cab, between which the cab may tilt forward.