SeaStar JP5040R 4″ Setback Hydraulic Jack Plate
Original price was: $1,300.00.$1,200.00Current price is: $1,200.00.
The SeaStar JP5040R Hydraulic Jack Plate is a high-performance solution designed to provide vertical engine adjustment for outboards up to 300HP. With a compact 4-inch setback, this plate is ideal for boaters looking to optimize their engine’s water depth without moving the center of gravity too far aft. This unit is in very good condition and includes a brand-new SeaStar DK4420 wiring harness for a complete, ready-to-install package.
| Attribute | Value |
| Brand | SeaStar Solutions |
| Model Number | JP5040R |
| Setback | 4 Inches |
| Condition | Very Good |
| Max Horsepower | Up to 300HP |
| Included Harness | SeaStar DK4420 (Brand New) |
| Weight | 56 lbs |
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Description
Optimize Your Performance: SeaStar JP5040R 4″ Jack Plate
The SeaStar JP5040R is engineered to allow boaters to raise or lower their outboard with ease, providing better fuel economy, higher top speeds, and safer shallow-water operation. Its sleek, black finish and robust construction make it a top choice for both professional anglers and recreational offshore boaters. Unlike larger setback plates, the 4-inch design is perfect for hulls that require minimal weight shift while still benefiting from precise engine height control.
Reliability Included: This package features a brand-new SeaStar DK4420 Jack Plate Wire Harness, ensuring that your electrical connections are factory-fresh and reliable. The hydraulic system is designed for smooth travel, allowing you to find the “sweet spot” for your propeller in any water condition.
Key Features of the SeaStar JP5040R:
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Compact 4″ Setback: Minimizes transom stress while maximizing engine performance.
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High Power Rating: Rigidity and strength to support modern high-torque engines up to 300HP.
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Complete Wiring Package: Includes a brand-new DK4420 harness, saving you the cost and hassle of sourcing separate electronics.
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Durable Build: Finished in a high-gloss black coating to resist corrosion in harsh marine environments.
Dimensions:
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Length: 20″
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Width: 6.5″
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Height: 19″












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