AHJ-6VHD-DPT-H Marine ATLAS 6 Heavy Duty Hydraulic Jack Plate The T-H Marine ATLAS Hydraulic Jack Plate is renowned as the leading jack plate worldwide, specifically designed for serious fishing professionals and boat manufacturers. This heavy-duty version accommodates applications with larger outboards, capable of handling engines up to 400 hp. Top Reasons to Choose the ATLAS Hydraulic Jack Plate Recognized as the best hydraulic jack plate available. Installed more frequently by boat manufacturers than an