Answering the search query directly: a transom riser or jack plate lets you raise a short-shaft outboard on a jon boat, improving height, clearance, and propeller efficiency. This guide focuses on 4″–5″ setback jack plates designed for boats like jon boats, skiffs, and small aluminum craft. Best for small motors (up to 35 HP) and shallow-water performance, these options help reduce cavitation, improve planing, and protect the transom. The top picks below are ideal for boaters who want easier handling, better speed, and greater control in tight waters. The buyer’s table summarizes the key choices to compare at a glance.
| Product | Setback | Lift | Material | Best For |
|---|---|---|---|---|
| Camoo MJ-1-DP Jack Plate (Wooden Block Included) | 4″ | Extends off transom | Cast aluminum | Skiffs and short-shaft engines needing reliable mounting |
| Bzcovac MJ-1-DP Mini Jack Plate | 4″ | 3″ lift | Cast aluminum | Small outboards, shallows, and improved hydrodynamics |
| T-H Marine Mini Jacker | 4″ | 3″ offset | Cast aluminum | Easy DIY upgrades for small motors |
| Mindoub 5″ Jack Plates | 5″ | Not specified | Aluminum | Shallow-water operation, higher mounting height |
| VELCKING MJ-1-DP | 4″ | 0–100mm adjustable | Hard steel alloy | Precise height tuning for up to 35 HP |
Camoo MJ-1-DP Jack Plate With Wooden Block
The Camoo MJ-1-DP is designed for clamp-on outboard motors up to 35 HP, making it suitable for jon boats, skiffs, and inflatables. It extends 4 inches from the transom and includes a wooden mounting block for a secure fit. Best for boaters who want a straightforward, bolt-in upgrade that increases engine height with a simple installation. A potential limitation is the wooden block as it may require maintenance in prolonged exposure to moisture.
Bzcovac MJ-1-DP Mini Jack Plate
The Bzcovac MJ-1-DP offers a four-inch setback and a three-inch lift, optimized for small outboards (6–35 HP). Cast aluminum construction provides corrosion resistance, and the package emphasizes improved hydrodynamics, reduced cavitation, and higher top speed. Best for shallow-water boats where motor placement and propeller efficiency matter. A caveat is that the lift is not adjustable after installation without additional hardware.
T-H Marine Mini Jacker
The T-H Marine Mini Jacker is a clamp-on small jack plate with a four-inch setback and a three-inch vertical offset, specifically designed for motors up to 35 HP. It is praised for ease of installation and robust cast aluminum construction. Best for DIY enthusiasts seeking a straightforward upgrade that yields faster planning and improved motor efficiency. A limitation to note is that its compatibility centers on clamp-on mounts and may require careful alignment during install.
Mindoub 5″ Jack Plate
The Mindoub 5″ Jack Plate raises the motor by five inches, aiding shallow-water operation and allowing a higher mounting position. It’s designed for port and starboard setups to raise the engine higher. Best for jon boats exhibiting shallow-water limitations or where a longer propeller bevel is needed to avoid strikes. A potential drawback is the higher mounting height, which may require longer mounting hardware and careful rebalancing of the boat.
VELCKING MJ-1-DP Adjustable Jack Plate
The Velcking MJ-1-DP offers adjustable height in 20mm increments from 0 to 100 mm with 4-inch setback for up to 35 HP engines. It includes mounting hardware and uses a heavy-duty steel alloy for durability. Best for boaters who want precise height tuning after installation. A caution is that heavier construction may weigh more than other options, affecting overall weight balance on ultra-light jon boats.
Motoparty Adjustable Trolling Motor Mount
Note: The Motoparty piece is a trolling motor mounting bracket rather than a traditional jack plate. It’s best for users seeking a stable trolling motor mount on jon boats or aluminum boats with narrow bow profiles. It provides height adjustability to optimize submersion depth for trolling motors. Consider this option if you primarily need a mounting platform rather than engine height adjustment for a gas outboard.
JY Performance Transom Saver
The JY Performance transom saver is not a jack plate but complements engine placement by stabilizing the transom during transport. Best for boaters who want to protect their transom while towing or during storage. A caution is that it does not provide engine height adjustment like a jack plate, so it should be paired with a suitable riser if engine height changes are required.
Buying Guide: How To Choose The Right Jon Boat Transom Riser
- Engine compatibility: Confirm the horsepower rating (most options target up to 35 HP) and shaft length compatibility with your motor.
- Setback and lift: Consider how much setback you need to reduce cavitation, increase prop efficiency, and improve planing. More setback can help in shallow water but may alter steering geometry.
- Material and durability: Cast aluminum is common for lighter boats; steel alloys offer robustness but may weigh more. Consider corrosion resistance in salt or brackish water.
- Installation complexity: Clamp-on designs are easier for DIY setups; some require mounting blocks or wood inserts. Ensure you have the hardware and space on your transom.
- Maintenance considerations: Wooden mounting blocks require moisture management and periodic checks, while all-metal plates need inspection for corrosion or wear.
- Adjustability: If you anticipate changing conditions or load, opt for adjustable-height plates with multiple increments for better tuning.
Frequently Asked Questions
- What is a jon boat transom riser used for? A transom riser raises the engine to improve clearance and propeller efficiency, especially useful on short-shaft motors in shallow water.
- Who should install a jack plate on a jon boat? Experienced DIY enthusiasts or professional installers who work with small outboards and shallow-water boats benefit most from these products.
- Is a wooden mounting block common with jack plates? Some models include wooden blocks for a precise fit, but wood requires maintenance to prevent water damage.
- Can I install a jack plate on my own? Yes, many clamp-on and bolt-on jack plates are designed for DIY installation with basic tools and hardware.
- Do these risers affect steering and handling? Yes, changing engine height and setback can alter handling; test in safe conditions and adjust gradually.
- What should I consider for shallow-water boats? Look for higher lift and setback to reduce cavitation, improve prop efficiency, and minimize silt disturbance.