What are the key benefits of the T-H Marine Z-Lock 4" Set Back Manual Single Adjust Jack Plate?

The T-H Marine Z-Lock 4" Set Back Manual Jack Plate offers enhanced strength and stability with its revolutionary Z-Lock design, eliminating side slippage. Made from aircraft-grade aluminum and full ½” material, it provides reliable support for V6 and V8 outboards up to 300 hp, ensuring optimal boating performance.

How does the Z-Lock™ system improve the functionality of the T-H Marine jack plate?

The Z-Lock™ system locks side plates in place using matching slotted extrusions, preventing side slippage and enhancing the overall stability of your outboard motor. This design provides a secure fit and peace of mind during high-performance boating.

Is the T-H Marine Z-Lock Jack Plate compatible with different outboard motor sizes and models?

Yes, the T-H Marine Z-Lock Jack Plate is designed to handle all V6 and V8 outboards up to 300 hp, making it versatile for various outboard sizes and models. It also offers multiple setback options, including 4, 6, 8, 10, and 12 inches.

How easy is it to adjust the T-H Marine Z-Lock Jack Plate during boat operation?

The Z-Lock Jack Plate features a top-of-the-plate adjustment mechanism, allowing for quick and easy vertical adjustments without the need for complex tools. This makes on-the-fly tuning more convenient for optimal performance.

What are the maintenance and care instructions for the T-H Marine Z-Lock Jack Plate?

To maintain the T-H Marine Z-Lock Jack Plate, regularly inspect for corrosion or damage, clean with mild soap and water, and ensure the locking mechanisms remain secure. Proper maintenance helps preserve its strength and functionality over time.

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T-H Marine Z-Lock 4" Set Back Manual Single Adjust Jack Plate - JPZ-4-DP

Name: T-H Marine Z-Lock 4" Set Back Manual Single Adjust Jack Plate - JPZ-4-DP
Brand: T-H Marine Supplies
SKU: 92149
Price: 387.99 USD
Availability: InStock

$387.99 ~~$732.99~~

SKU: 92149

Manufacturer Part #: JPZ-4-DP

T-H Marine Z-Lock 4" Set Back Manual Single Adjust Jack Plate – JPZ-4-DP

The T-H Marine Z-Lock 4" Set Back Manual Jack Plate (JPZ-4-DP) delivers dependable engine height adjustment and improved on-water performance in a compact, lightweight design. Ideal for boaters who want precise tuning without the complexity of hydraulic systems, this manual jack plate allows you to dial in optimal engine height for improved acceleration, handling, and shallow-water operation.

Featuring Z-Lock™ single-adjust technology, the plate securely locks the engine in position, preventing slippage or movement during high-speed runs or heavy loads. The 4-inch setback improves hull balance and propeller efficiency while maintaining a minimal transom extension—making it a great choice for bass boats, bay boats, and performance-oriented outboard applications.

Constructed from high-strength aluminum with a polished finish, the Z-Lock jack plate offers excellent corrosion resistance and long-lasting durability in both freshwater and saltwater environments. Designed and manufactured in the USA, T-H Marine Z-Lock jack plates are trusted for their simplicity, strength, and reliable performance.

Key Performance Features

Z-Lock Design: Features unique interlocking Z-Lock side rails that eliminate side-to-side movement and vibration, providing the strength of a solid piece of aluminum.
Easy Adjustment: Unlike many manual plates, this model uses a single top-mounted adjustment bolt. You can raise or lower the engine quickly using a single wrench once the side locking bolts are loosened.
Heavy-Duty Build: Constructed from 1/2" aircraft-grade aluminum with a polished "DP" (Dolphin Polished) finish for maximum corrosion resistance and a premium look.
High Horsepower Rating: Despite its compact size, it is rated for outboards up to 300 HP, including heavy modern four-strokes.

Technical Specifications

Model: Z-Lock Manual Jack Plate
Part Number: JPZ-4-DP
Setback: 4 inches
Adjustment Type: Manual, single-adjust
Material: High-strength aluminum
Finish: Polished
Application: Outboard engines
Use: Freshwater and saltwater

Benefits

Improves hole shot, top speed, and handling
Optimizes engine height for shallow water operation
Enhances propeller efficiency
Budget-friendly alternative to hydraulic jack plates

Applications

Bass boats
Bay boats
Flats boats
Performance outboard boats
Shallow-water fishing boats

Why Choose the Z-Lock 4" Manual Jack Plate

The T-H Marine Z-Lock JPZ-4-DP is ideal for boaters seeking performance gains with minimal complexity. Its secure locking system, compact setback, and polished aluminum construction make it a reliable and cost-effective upgrade for a wide range of outboard boats.

Summary for the User

The JPZ-4-DP is a "set-it-and-forget-it" tool that helps you find your boat's ideal engine height for better top-end speed and fuel economy. It is significantly lighter and more affordable than hydraulic alternatives, making it a favorite for bass boats and aluminum fishing boats.

Installation Tip: When mounting, always use a high-quality marine sealant on your transom bolts. To find your "sweet spot," adjust the plate in 1/4-inch increments and test your water pressure and GPS speed after each move.

Warning WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Manufacturer : T-H Marine Supplies
Manufacturer Part No : JPZ-4-DP

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