Profile: Power Caster, Inc. handles travel trailers, boat trailers and ATV or jet ski trailers using a standard type hitch & crank-up jack. Our model PC-1 power caster is designed for smaller boat/travel trailers, which includes 500 lb. tongue capacity, 5,000 lb. laden weight capacity, 1/4 horsepower electric motor, 400 in.-lbs. of torque at 30 RPM and weight 58 lbs. We offer model PC-3 power caster, which includes dual 4-ply nylon tires, heavy-duty pregreased needle, hardened inner race bushings, electric brake system and 6-foot service cord.