Bob's Machine Standard Series Hydraulic Jack PlateProven quality since 1978, the Bob's Machine Standard Hydraulic Jack Plate is powerful, lightweight, and reliable. These jack plates are used to improve an outboard boat's speed, holeshot, fuel efficiency, and makes navigating in shallow waters easier. Standard Series Jack Plates were designed to keep the least amount of weight on the transom as possible by keeping the pump inside the boat. The result is a unit that is the lightest weight jack plate on the market. Unlike competitors, Bob's Jack Plates offer a one piece design and do not require setback spacers to achieve the proper setback. Standard Series Hydraulic Jack Plates are available in 4", 6", and 10" setbacks.Jack plates come with the following: Jack plate, pump, wiring harness, 7' hose, control switch, and oil. Includes a limited lifetime warranty on structure, 60 month warranty on pump, and 12 month warranty on wire harness and solenoids.Features: Rated for 300HP, up to 625 lbs. motors; Provides 7.5" of lift; Pump inside boat; Automotive grease fittings; Adjustable tension rods; Pre-drilled for dual side mount Power Pole brackets; Manufactured with aluminum and stainless steel; Less weight on transom, pump stays dry in internal location; Large powerful motor can lift heavy outboards under full power; Made in the USA; Specifications: Transom side mounting dimensions: 16-3/4" W x 13-3/4" H; Motor side mounting width: 18-1/4"; Mounting height: 13-3/4"; Part #ModelPlate WeightMax HPSetback100-104100HDUltra HD38 lbs.300 HP4"100-106000Lightweight40 lbs.300 HP6"100-110000Max. Jac49 lbs.300 HP10"Warranty: 5 Year Pump Warranty; Limited lifetime structure warranty against manufacturing defects; 1 Year warranty on wire harness and solenoids;