The BH-85 can easily lift a boat weighing up to 8,500 lbs. without having to compound any pulleys. This hoist features a solid bronze worm gear with a steel worm enclosed in an aluminum block housing. The standard unit comes with a powder coated back plate and Boat Hoist USA's heavy duty cast aluminum dual pulleys. A Furnas maintain switch with a Leviton in-line GFCI also comes with the unit. Like all Boat Hoist USA Boat Hoists, this unit has no steel-on-steel working parts.