2017 Hess Dump Truck and Loader The 2017 Hess Dump Truck and Loader is a powerful partnership of heavy-duty earth movers. With 30 brilliant LED lights plus realistic sounds, this oversized dump truck features hydraulic lift pistons and associated sound, raising the bed into the dumping position. The self-propelled, multi-direction powered Loader is the first accompanying vehicle fully loaded with LED lights. The 270° rotating cab with extending excavator arm and bucket combination allows the Loader to bend and swivel in just about any direction.