The line of TUG 660 Belt-Loaders from Textron GSE offer a choice of gas, diesel, LP or electric powertrains. The gas, diesel and LP units are equipped with a 4LHD transmission, transmission mounted parking brake and transmission protection system. The electric model is equipped with an AC powertrain and regenerative braking. The TUG 660 models include Newage drive axles, Hydac radiators, limited slip rear differential, 4-wheel disc brakes, new steer axle and electronic belt controls. TUG 660 models include return to neutral functionality, a shift inhibit feature, a top speed of 15 mph and optional Smart Sense anti-collision system.