TH Marine Hi-Jacker 4" 3/8" Thick Jack Plate For up to 150hp Outboard

The TH Marine Hi-Jacker 4" 3/8" Thick Jack Plate for up to 150hp Outboard is the go-to solution for anglers and boaters running short-transom setups who need improved motor positioning without breaking the bank. This fixed jack plate delivers the vertical adjustment and setback that shallow-water operators depend on, allowing you to run higher on the transom for better ventilation, reduced cavitation, and improved shallow-water performance. Whether you're grinding through marsh grass, running tidal flats, or navigating rocky shoals, proper motor height is critical to staying off bottom and maintaining control.

Built from solid aluminum extrusion, the Hi-Jacker frame resists corrosion and delivers years of reliable service in saltwater and freshwater environments alike. The plate features three engine mount holes and two transom mounting holes, engineered for secure, vibration-free installation on outboards rated up to 150hp. With a total vertical adjustment range of 5.5 inches and a 4-inch setback, this jack plate positions your motor precisely where it needs to be for optimal hull attitude and performance. The 3/8-inch thickness ensures structural rigidity under the stresses of high-speed operation and rough water conditions.

Skiff operators, flats fishermen, and shallow-draft boaters benefit most from this platform, especially those running aluminum hulls or center-console designs with limited transom real estate. Installation is straightforward—the fixed design requires no hydraulic systems or electronics, eliminating points of failure common to power plates. The Hi-Jacker's lightweight design (18 lbs) keeps weight forward where it belongs, maintaining proper hull balance and fuel efficiency. Ideal for anyone seeking a cost-effective, durable transom extension that improves motor clearance, reduces blow-out, and keeps you fishing or cruising in skinny water with confidence.