Back on Cybertron, Hauler was a Constructicon involved in the building of the Crystal City. When his teammates were reprogrammed as Decepticons, Hauler turned to the Autobots, joining their ranks. This choice would eventually put him on board the Ark for its doomed voyage that ended on Earth. When he awoke with the rest of the crew in 1984, he resumed his primary function: the discovery and procurement of energy sources. This task sends him far and wide across the planet, and his tendency towards capricious self-expression often results in him coming back with different colors and parts.
His crane mode can lift 60 tons, and in robot mode, he can launch his hands from their wrist-sockets. The hands can fly through the air under his remote-control guidance, allowing him to perform tasks normally beyond his reach.
His alt-mode is a Crane Truck.