AHJ-4VHD-DPT-H Marine ATLAS 4 Heavy Duty Hydraulic Jack Plate The ATLAS Hydraulic Jack Plate from T-H Marine is renowned for its superior design and functionality, making it the preferred choice for both professional fishermen and leading boat manufacturers. The Heavy Duty version is engineered to cater to larger outboards, supporting engines up to 400 hp. Top Reasons to Choose ATLAS Hydraulic Jack Plate Unmatched performance and reliability in hydraulic jack plates. Factory installed by more boat manufact