T-H Marine Z-Lock 12" Set Back Manual Single Adjust Jack Plate – JPZ-12-DP

The T-H Marine Z-Lock 12" Set Back Manual Jack Plate (JPZ-12-DP) is engineered for boaters who demand maximum setback, leverage, and performance without the complexity of hydraulic systems. Designed for larger outboards and performance-oriented boats, this manual jack plate allows precise engine height adjustment to improve hole shot, top-end speed, trim response, and shallow-water capability.

Featuring Z-Lock™ single-adjust technology, the plate securely locks the engine in position, preventing unwanted movement even under high loads and aggressive operation. The 12-inch setback provides increased leverage and improved hull balance, enhancing propeller efficiency and overall boat handling. Constructed from high-strength aluminum and finished in a polished aluminum coating, the Z-Lock jack plate offers excellent corrosion resistance and long-term durability in both freshwater and saltwater environments.

Proudly made in the USA, T-H Marine Z-Lock jack plates are trusted by tournament anglers and performance boaters for their rugged strength, reliability, and straightforward manual adjustment.

Technical Specifications

• Model: Z-Lock Manual Jack Plate

• Part Number: JPZ-12-DP

• Setback: 12 inches

• Adjustment Type: Manual, single-adjust

• Material: High-strength aluminum

• Finish: Polished

• Application: Outboard engines

• Use: Freshwater and saltwater

Benefits

• Improves hole shot, top-end speed, and fuel efficiency

• Optimizes engine height for shallow-water operation

• Enhances propeller efficiency, trim response, and hull lift

• Cost-effective alternative to hydraulic jack plates

Applications

• Bass boats

• Bay boats

• Flats boats

• Performance outboard boats

• Tournament and shallow-water fishing boats

Why Choose the Z-Lock 12" Manual Jack Plate

The T-H Marine Z-Lock JPZ-12-DP is ideal for boaters seeking maximum performance gains with a simple, manual solution. Its extended setback, secure locking system, and durable polished aluminum construction make it a dependable upgrade for high-performance outboard applications.

Summary for the User

The JPZ-12-DP is an ideal "set-it-and-forget-it" solution for boaters who need a long setback to improve holeshot and top-end speed. Because it is a manual plate, it is lighter and more affordable than hydraulic versions, though height changes must be made while the boat is stationary.

Installation Tip: Because of the significant 12-inch leverage, it is highly recommended to use a transom support plate inside the bilge to distribute the weight and stress across a larger area of the transom.

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-12-DP