SeaStar Gen II Xtreme Hydraulic Jack Plate The SeaStar Gen II Xtreme Hydraulic Jack Plate is one of the sleekest and most durable jack plates available. The Xtreme Jack Plate allows for higher speeds, gains in fuel economy, and the ability to run in shallow water. Available in 4, 6, 8, 10 and 12 inch setbacks, this jack plate also has a new, high-speed, hydraulic actuator that lifts engines 5.8 in 8.5 seconds. The SeaStar Xtreme Jack Plate is rated for 400 horsepower engines and is designed to m