Best Jon Boat Jack Plate: Compare 10 Manual Options

Best Jon Boat Jack Plate

A strong jon boat jack plate should match your outboard’s horsepower and transom, provide useful height adjustment, and suit the boat’s size and use. For small-engine jon boats, the Camoo MJ-1-DP leads this list with a 35 HP limit, four-inch setback, and an included marine-grade wooden block. Other options span 30 HP manual models, adjustable small-boat plates, and heavier-duty units rated for larger outboards.

That range matters: a high horsepower rating does not automatically make a plate a better fit for a lightweight jon boat. Compare the engine limit, adjustment method, setback, listed materials, and mounting dimensions against your own motor and transom before choosing.

Product descriptions vary in detail, so confirm the exact fit and installation requirements with the manufacturer before purchase.

The Camoo MJ-1-DP is the leading choice for a small-engine jon boat because it is designed for clamp-on outboards up to 35 HP, provides a four-inch setback, and includes a pre-cut marine-grade wooden transom block. Those details make it a well-matched option for boats such as skiffs and aluminum boats. If you need a hand-crank lift or a higher horsepower rating, consider the other ranked options, but verify transom fit and mounting dimensions before ordering.

Our Top Picks

Camoo MJ-1-DPBest Overall

Camoo MJ-1-DP

Designed for clamp-on outboards up to 35 HP, it has a four-inch setback and includes a pre-cut marine-grade wooden block for mounting.

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On The Fly StandardBest On-Water Adjustment

On The Fly Standard

Supports outboards up to 30 HP without factory trim and tilt, and its listed design allows adjustment while on the water.

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RAJBZYT OB30-HCBest Hand-Crank Lift

RAJBZYT OB30-HC

This manual model is rated for up to 30 HP and lists a hand crank, six-inch setback, and 6.3-inch vertical adjustment.

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Compare These Jon Boat Jack Plates

#ProductMaterialWeightLoad CapacityCompatible with Vehicle TypeBuy
1
Camoo MJ-1-DP1. Camoo MJ-1-DPBest Overall
Cast Aluminum, Marine Grade Transom Block5.24 kg1.5E+2 lbSkiffs, Aluminum Boats, InflatablesView on Amazon
2
On The Fly Standard2. On The Fly StandardBest On-Water Adjustment
Aluminum23 lb150 lbTrailerView on Amazon
3
RAJBZYT OB30-HC3. RAJBZYT OB30-HCBest Hand-Crank Lift
High Tensile Marine-Grade Aluminum Alloy14.7 lb68 kgAll-Terrain Vehicles Small Fishing BoatView on Amazon
4
VELCKING MJ-1-DP4. VELCKING MJ-1-DPIncremental small-engine tuning
Nylon8.12 kg8 lbboatsView on Amazon
5
Zerodis Manual Plate5. Zerodis Manual PlateBest Listed Lift
——500 kgATVView on Amazon
6
WFLNHB JPL45006. WFLNHB JPL4500Higher-horsepower adjustable setups
Aluminum11900 g1E+3 lbBoatView on Amazon
7
FQRANBO 4-Inch Plate7. FQRANBO 4-Inch PlateFour-inch setback with broad HP range
Aluminium, Stainless Steel16 lb225 lbOutboard MotorView on Amazon
8
GELUOXI 4-Inch Plate8. GELUOXI 4-Inch PlateManual four-inch transom offset
Alloy Steel, Aluminum———View on Amazon
9
VEPURLT 4-Inch Plate9. VEPURLT 4-Inch PlateBolt-adjusted four-inch positioning
Aluminum, Steel10.77 kg24 lbBoatView on Amazon
10
T-H Marine Z-Lock10. T-H Marine Z-LockV6 outboards and anti-slip locking
Aluminum3 lb8.5E+2 lbBoatView on Amazon

Detailed Reviews: Best Jon Boat Jack Plate

Camoo MJ-1-DP

#1 · Best Overall

1. Camoo MJ-1-DP

  • Material: Cast Aluminum, Marine Grade Transom Block
  • Weight: 5.24 kg
  • Load Capacity: 1.5E+2 lb
  • Compatible with Vehicle Type: Skiffs, Aluminum Boats, Inflatables

Best for: Small clamp-on motor setups.

Why it ranks #1: Designed for clamp-on outboards up to 35 HP, it has a four-inch setback and includes a pre-cut marine-grade wooden block for mounting.

The included pre-cut, pre-grooved marine-grade wood block gives the Camoo MJ-1-DP a ready-made mounting interface for clamp-on outboards up to 35 HP. Its 4-inch setback lets a long-shaft motor mount on a shorter-shaft transom, a useful arrangement for skiffs, aluminum boats, and inflatables.

This cast-aluminum offset plate pairs its 4-inch setback with the included wood block, so buyers can address a long-shaft motor and shorter transom without sourcing that block separately. The listed application is clamp-on outboards up to 35 HP, making the capacity boundary clear for small-boat setups. At 5.24 kg, it is a substantial mounting assembly to account for during installation. The listed compatible craft—skiffs, aluminum boats, and inflatables—helps narrow its intended use.

Pros
  • 4-inch setback
  • Fits clamp-on outboards up to 35 HP
  • Cast-aluminum construction
  • Includes pre-cut, pre-grooved marine-grade transom block
Cons
  • Limited to clamp-on outboards rated up to 35 HP.

Skip it if you need a plate rated above 35 HP; the WFLNHB JPL4500 is listed for 40–225 HP.

Choose this Camoo for a small skiff, aluminum boat, or inflatable with a clamp-on motor up to 35 HP and a shorter transom. Its 4-inch setback and included block suit that specific mounting job.

Full product details
BrandCamoo
ColorSilver
Compatible with Vehicle TypeSkiffs, Aluminum Boats, Inflatables
Included Components1 X Cast Aluminum Jack Plate (Replace# MJ-1-DP), 1 X Marine Grade Transom Wooden Block (Replace# WOOD0002)
Item Dimensions16.61 x 12.79 x 4 inches
Item Weight5.24 kg
Load Capacity1.5E+2 pounds
ManufacturerCamoo
Part NumberCE-MJ-1-DP
Manufacturer Warranty Description12 months warranty
MaterialCast Aluminum, Marine Grade Transom Block
Model NumberMJ-1-DP
Style NameClamp-On Style

Listed on Amazon as: MJ-1-DP 4'' Setback Small Engine Jack Plate for Outboard Motors Up to 35HP

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On The Fly Standard

#2 · Best On-Water Adjustment

2. On The Fly Standard

  • Material: Aluminum
  • Weight: 23 lb
  • Load Capacity: 150 lb
  • Compatible with Vehicle Type: Trailer

Best for: On-water manual motor adjustments.

Why it ranks #2: Supports outboards up to 30 HP without factory trim and tilt, and its listed design allows adjustment while on the water.

The On The Fly standard plate is specifically presented for on-the-water adjustment, letting an operator raise or lower a motor while afloat. It supports outboards up to 30 HP without factory trim and tilt, with a 5-inch setback and a stated vertical range that varies by mounting position.

On-the-water adjustability means the motor position can be changed without waiting until the boat is back ashore, according to the listing. The 30 HP limit and compatibility with motors without factory trim and tilt clarify the intended engine setup. Its 5-inch distance between the transom bracket and motor slide defines the setback, while the stated vertical movement is 53⁄4 inches, extending to 73⁄4 inches depending on mounting position. That range makes installation position relevant to the final adjustment.

Pros
  • Allows manual adjustment while on the water
  • For outboards up to 30 HP
  • Works with motors without factory trim and tilt
  • 5-inch setback with vertical travel varying by mounting position
Cons
  • Limited to outboards rated up to 30 HP.

Skip it if you run a 40–225 HP outboard; the WFLNHB JPL4500 is listed for that horsepower range.

Choose this On The Fly plate if you operate an outboard up to 30 HP without factory trim and tilt and want to adjust motor position afloat. Account for the mounting-dependent vertical range.

Full product details
BrandONTHEFLY JACK PLATES
ColorGrey
Compatible with Vehicle TypeTrailer
Item Dimensions15 x 15 x 6 inches
Item Weight23 pounds
Load Capacity150 pounds
ManufacturerOn The Fly Jack Plates
Part NumberAJP-01
Manufacturer Warranty Description3 year warranty on the jack plate housing, 1 year warranty on the jack
MaterialAluminum
Model NumberAJP-01
Style NameManual

Listed on Amazon as: Adjustable Manual Boat Jack Plate – High Grade Marine Aluminum – Standard Unit – for up to 30hp Outboard Motors – by On The Fly Jack Plates

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RAJBZYT OB30-HC

#3 · Best Hand-Crank Lift

3. RAJBZYT OB30-HC

  • Material: High Tensile Marine-Grade Aluminum Alloy
  • Weight: 14.7 lb
  • Load Capacity: 68 kg
  • Compatible with Vehicle Type: All-Terrain Vehicles Small Fishing Boat

Best for: Hand-crank shallow-water adjustments.

Why it ranks #3: This manual model is rated for up to 30 HP and lists a hand crank, six-inch setback, and 6.3-inch vertical adjustment.

The RAJBZYT’s hand-crank height adjustment lets an operator change outboard position without relying on a powered lift. With a 6-inch setback and 6.3 inches of vertical adjustment, it targets shallow-water fishing and jon-boat use while remaining limited to motors up to 30 HP.

The manual crank makes height changes an operator-controlled task, while the listed 6.3-inch vertical adjustment provides a defined range for tuning motor position. Its 6-inch setback places the motor farther from the transom, a relevant fit consideration when planning the mounting layout. The 6mm marine-grade aluminum alloy is specified for saltwater and freshwater use, supporting buyers who need a plate for either environment. Its 30 HP ceiling keeps the intended motor class clear.

Pros
  • Hand-crank manual height adjustment
  • 6.3 inches of vertical adjustment
  • 6-inch setback
  • 6mm marine-grade aluminum alloy listed for saltwater and freshwater
Cons
  • Rated for outboards up to 30 HP only.

Skip it if you run a 40–225 HP outboard; the WFLNHB JPL4500 is listed for that higher horsepower range.

This RAJBZYT suits a jon-boat or small fishing-boat owner with an outboard up to 30 HP who wants manual height changes for shallow water. Check that its 6-inch setback suits the transom layout.

Full product details
BrandRAJBZYT
ColorMatte Brushed Silver
Compatible with Vehicle TypeAll-Terrain Vehicles Small Fishing Boat
Included ComponentsMain Lifting Bracket with Hand Crank
Item Dimensions10 x 2 x 2.7 inches
Item Weight14.7 pounds
Load Capacity68 kilogram
ManufacturerRAJBZYT
Part NumberOB30-HC012
Manufacturer Warranty Description1 year
MaterialHigh Tensile Marine-Grade Aluminum Alloy
Model NumberOB30-HC
Style NameManual Lifting Outboard Mount Support

Listed on Amazon as: Adjustable Outboard Jack Plate – Manual Transom Bracket, Marine Grade 6mm Aluminum Alloy, 6" Setback, 6.3" Vertical Adjustment, Fits Up to 30HP for Shallow Water Fishing & Jon Boats

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VELCKING MJ-1-DP

#4

4. VELCKING MJ-1-DP

  • Material: Nylon
  • Weight: 8.12 kg
  • Load Capacity: 8 lb
  • Compatible with Vehicle Type: boats

Best for: Incremental small-engine tuning.

Why it ranks #4: The listing specifies 0–100 mm of height adjustment in 20 mm increments for outboards up to 35 HP, with mounting hardware included.

The VELCKING plate offers height changes from 0 to 100mm in 20mm increments, giving small-engine owners a defined step-by-step adjustment range. Its 4-inch setback and stated fit for outboards up to 35 HP make it a manual positioning option for boat setups in that class.

The 20mm increments let an operator select among defined height positions rather than relying on an unspecified adjustment range. The listed 0–100mm span gives a clear upper boundary for that tuning. A 4-inch setback provides the plate’s stated transom-to-motor offset, and the product is identified for outboards up to 35 HP. Rubber pad mounting blocks and stainless screws are included according to the features, supporting a more complete mounting process and helping avoid direct damage during attachment.

Pros
  • 0–100mm height adjustment
  • Adjustment in 20mm increments
  • 4-inch setback
  • Includes rubber pad mounting blocks and stainless screws
Cons
  • Height adjustment is limited to the stated 100mm range.

Skip it if you need more than 100mm of listed height travel; the Zerodis plate specifies approximately 6.3 inches of lift.

This VELCKING plate fits buyers with an outboard up to 35 HP who prefer height changes in defined 20mm steps. Its 100mm maximum travel and 4-inch setback are key layout constraints to consider.

Full product details
BrandVELCKING
Colorblack
Compatible with Vehicle Typeboats
Included Componentsscrew
Item Weight8.12 kg
Load Capacity8 pounds
ManufacturerAdjustable Outboard Engine Jack Plate for Boats
Part Numbermto01
Manufacturer Warranty Description1 year
MaterialNylon
Model Numbermto01
Style NameJack Plate

Listed on Amazon as: MJ-1-DP Jack Plate 4'' Setback Small Engine Jack Plate Adjustable Outboard Engine Jack Plate for Boats, Up to 35HP, Manual Height Adjustment, Includes Mounting Hardware (Black)

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Zerodis Manual Plate

#5 · Best Listed Lift

5. Zerodis Manual Plate

  • Load Capacity: 500 kg
  • Compatible with Vehicle Type: ATV

Best for: Knob-adjusted small-boat positioning.

Why it ranks #5: Its listing describes manual adjustment with hand knobs and approximately 6.3 inches of lift, but the horsepower fitment detail is incomplete.

Two hand knobs let the Zerodis plate change motor height in about 15 seconds, making quick manual adjustments its defining feature. The listing specifies approximately 6.3 inches of lift and 6mm aluminum alloy, with use described for jon boats, dinghies, and small skiffs.

The pair of hand knobs provides a tool-free way to change height, and the stated adjustment time of about 15 seconds makes that process practical when conditions change. Approximately 6.3 inches of lift is specified, with the listing connecting the raised position to reducing propeller cavitation and ventilation during turns or acceleration. Its 6mm aluminum-alloy construction gives the plate a defined material and thickness. The product description also states no drilling, which may simplify the installation workflow.

Pros
  • Two hand knobs for manual height adjustment
  • Adjustment stated to take about 15 seconds
  • Approximately 6.3-inch lifting height
  • 6mm aluminum alloy construction
Cons
  • The supplied horsepower fit range is incomplete, so motor capacity is unclear.

Skip it if you need a clearly stated 30 HP limit; the RAJBZYT OB30-HC is specified for outboards up to 30 HP.

The Zerodis may suit a small-boat owner who values quick, knob-operated height changes for shallow-water runs. Its stated lift and material are useful reference points, but the supplied horsepower range is incomplete.

Full product details
BrandZerodis
Colorsilver
Compatible with Vehicle TypeATV
Included Componentsno
Load Capacity500 kg
ManufacturerZerodis
Part NumberZerodis8hwdybcliu
Manufacturer Warranty Descriptionmanufacturer warranty for 90 day
Model NumberZerodis8hwdybcliu

Listed on Amazon as: Zerodis Boat Jack Plate, Manual Aluminum Alloy Outboard Jack Plate 6 Inch Lift, Tool Free Height Adjustment, Stop Cavitation, No Drilling, for Jon Boat Dinghy Small Skiff 5 to

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WFLNHB JPL4500

#6

6. WFLNHB JPL4500

  • Material: Aluminum
  • Weight: 11900 g
  • Load Capacity: 1E+3 lb
  • Compatible with Vehicle Type: Boat

Best for: Higher-horsepower adjustable setups.

Why it ranks #6: It offers six inches of setback and lists compatibility with 40–225 HP outboards, a much broader and higher range than typical small-engine options.

The WFLNHB JPL4500 covers outboards from 40 to 225 HP, giving larger-motor owners a jack plate rated well beyond small-engine models. Its 6-inch setback and 4 inches of verified vertical lift support motor positioning, including long-shaft engines mounted on short-shaft transoms.

A 6-inch setback moves the motor aft, while the listed 4-inch vertical lift gives the operator a defined adjustment range for positioning it. WFLNHB specifies a 40–225 HP outboard range, making this a candidate for substantially larger engines than small-boat plates. The polished, high-strength aluminum construction is paired with pre-drilled mounting dimensions for 1/2-inch stainless hardware. The product information also says installation can use common tools, helping buyers plan the mounting workflow.

Pros
  • Listed for 40–225 HP outboards
  • 6-inch setback
  • 4 inches of vertical lift
  • Pre-drilled holes for 1/2-inch stainless hardware
Cons
  • Its 40 HP minimum excludes smaller outboards.

Skip it if you run an outboard below 40 HP; the Camoo MJ-1-DP is listed for clamp-on motors up to 35 HP.

Consider the JPL4500 for a boat with a 40–225 HP outboard that needs 6 inches of setback and adjustable lift. Its 40 HP minimum and stated mounting-hole layout are important fit boundaries.

Full product details
BrandWFLNHB
Colorsilver
Compatible with Vehicle TypeBoat
Included ComponentsComes with housing
Item Dimensions17.32 x 17.32 x 6.69 inches
Item Weight11900 g
Load Capacity1E+3 pounds
ManufacturerWFLNHB
Part Number1-8062098-601861
Manufacturer Warranty Description1
MaterialAluminum
Model NumberDoes not apply
Style Namefashion

Listed on Amazon as: WFLNHB JPL4500 6" Setback Adjustable Outboard Boat Jack Plate 40-225hp

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FQRANBO 4-Inch Plate

#7

7. FQRANBO 4-Inch Plate

  • Material: Aluminium, Stainless Steel
  • Weight: 16 lb
  • Load Capacity: 225 lb
  • Compatible with Vehicle Type: Outboard Motor

Best for: Four-inch setback with broad HP range.

Why it ranks #7: This manual plate lists four inches of setback and vertical movement with mounting-hole measurements, but its stated fit reaches up to 225 HP.

The FQRANBO plate combines a 4-inch setback with a stated fit for outboards up to 225 HP, an unusually broad motor range for this compact offset specification. Its 4 inches of adjustable vertical movement gives owners a defined lift range for positioning the engine.

With 4 inches of setback and 4 inches of vertical movement, this plate supplies two clearly stated dimensions for planning transom installation and motor positioning. The listing allows outboards up to 225 HP, while its pre-drilled holes are specified for 1/2-inch stainless hardware. Hole spacing is also provided: 12 7/8 inches across the top pair and 9 7/8 inches across the bottom pair, with 8 inches between top and bottom mounting holes. Those dimensions help installers assess the mounting layout.

Pros
  • Fits outboards up to 225 HP
  • 4-inch setback
  • 4 inches of adjustable vertical movement
  • Pre-drilled for 1/2-inch stainless hardware with hole dimensions listed
Cons
  • Its vertical adjustment is limited to 4 inches.

Skip it if you need 5 inches of vertical adjustment; the T-H Marine Z-Lock Manual Jack Plate specifies that travel.

The FQRANBO suits owners seeking a 4-inch setback and adjustable lift for an outboard rated up to 225 HP. Review its listed hole spacing and 4-inch vertical range against the boat’s mounting layout.

Full product details
BrandFQRANBO
ColorSilver
Compatible with Vehicle TypeOutboard Motor
Included ComponentsAdjustable 4" Jack Plate
Item Dimensions17.1 x 13.1 x 4.4 inches
Item Weight16 pounds
Load Capacity225 Pounds
ManufacturerFQRANBO
Part NumberMJ-1-DP
Manufacturer Warranty Description6 months
MaterialAluminium, Stainless Steel
Model NumberF-LPA15 19 20
Style NameJack Plate

Listed on Amazon as: 4" Adjustable Jack Plate Manual Transom Set Back Jack Plate for Outboard Boat Motor, Compatible with up to 225 Horsepower Outboard Motors

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GELUOXI 4-Inch Plate

#8

8. GELUOXI 4-Inch Plate

  • Material: Alloy Steel, Aluminum

Best for: Manual four-inch transom offset.

Why it ranks #8: The manual aluminum plate lists a four-inch setback and up to 225 HP compatibility, making its stated engine range less specific to small jon boats.

The GELUOXI plate uses a one-piece aluminum-alloy design with steel fasteners and provides a 4-inch setback for manual outboard mounting. Its stated application includes fitting long-shaft engines to short-shaft transoms, and the listing gives a maximum horsepower of 225 HP.

The 4-inch setback provides a defined offset between transom and motor, while the listed application explains its relevance to installing a long-shaft outboard on a short-shaft transom. Manual operation keeps motor adjustment independent of a powered lift. The one-piece aluminum-alloy construction is paired with steel fasteners, and the listing identifies compatibility up to 225 HP. It is also described for mounting and adjusting outboards on jon boats and similar small-to-mid-size boats, helping define its intended craft.

Pros
  • 4-inch setback
  • Manual operation
  • One-piece aluminum-alloy construction with steel fasteners
  • Listed for outboards up to 225 HP
Cons
  • The supplied listing does not state a vertical travel measurement.

Skip it if you need a stated vertical travel figure before choosing; the WFLNHB JPL4500 lists 4 inches of vertical lift.

Consider GELUOXI for manual outboard mounting where a 4-inch setback and long-shaft-to-short-transom application fit the boat. The listing gives a 225 HP maximum but no vertical travel measurement.

Full product details
BrandGELUOXI
ColorSilver
Included Components1x Boat Jack Plate
ManufacturerGELUOXI
Part NumberGELUOXI GGM-232267A-1394
MaterialAlloy Steel, Aluminum
Model NumberGELUOXI GGM-232267A-1394
Operation ModeManual
Recommended UsesMounting and adjusting outboard motors on boat transoms; enables installation of long-shaft outboard engines on boats with short-shaft transoms (sterns); provides adjustable height and setback positioning; commonly used on jon boats and similar small-to-mid-size boats with outboard motors up to 225

Listed on Amazon as: Adjustable 4'' Set Back Jack Plate Manual Power Lift Transom Outboard Boat Motor Replacement for Outboard Boat Motors GELUOXI

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VEPURLT 4-Inch Plate

#9

9. VEPURLT 4-Inch Plate

  • Material: Aluminum, Steel
  • Weight: 10.77 kg
  • Load Capacity: 24 lb
  • Compatible with Vehicle Type: Boat

Best for: Bolt-adjusted four-inch positioning.

Why it ranks #9: It lists four inches of setback and vertical movement plus bronze and brass hardware, but its listing does not specify a small-engine limit.

A single steel bolt adjusts the VEPURLT plate, while bronze and brass hardware is specified to eliminate binding. The plate provides 4 inches each of setback and vertical movement, giving buyers a straightforward manual adjustment arrangement with defined dimensions.

Turning one steel bolt changes the plate position, making the adjustment method clear for owners planning a manual setup. The stated bronze and brass hardware is intended to eliminate binding, supporting that bolt-operated workflow. Both setback and vertical movement are listed at 4 inches, which gives a defined range for transom layout and motor positioning. Pre-drilled holes are specified for 1/2-inch stainless hardware, with top and bottom hole spacing provided to help assess installation requirements before mounting.

Pros
  • Single steel-bolt adjustment
  • Bronze and brass hardware specified to eliminate binding
  • 4-inch setback and 4 inches of vertical movement
  • Pre-drilled for 1/2-inch stainless hardware
Cons
  • Listed weight is 24 pounds, a substantial figure to account for during installation.

Skip it if you need more than 4 inches of vertical travel; the T-H Marine Z-Lock Manual Jack Plate provides 5 inches.

The VEPURLT suits boat owners wanting bolt-operated manual adjustment with equal 4-inch setback and vertical movement. Its listed 24-pound weight and specified hole layout are relevant considerations for installation.

Full product details
BrandVEPURLT
ColorBronze
Compatible with Vehicle TypeBoat
Item Dimensions17.13 x 16.93 x 4.72 inches
Item Weight10.77 kg
Load Capacity24 pounds
ManufacturerVEPURLT
Part NumberManual Jack Plate
MaterialAluminum, Steel
Model NumberManual Jack Plate
Style NameModern

Listed on Amazon as: Jack Plate Aluminum Adjustable 4" Outboard Motor Jack Plate for Boat Steering System

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T-H Marine Z-Lock

#10

10. T-H Marine Z-Lock

  • Material: Aluminum
  • Weight: 3 lb
  • Load Capacity: 8.5E+2 lb
  • Compatible with Vehicle Type: Boat

Best for: V6 outboards and anti-slip locking.

Why it ranks #10: Its aircraft-grade aluminum design handles V6 outboards up to 300 HP and offers five inches of vertical adjustment, a poor match for most small jon-boat setups.

The T-H Marine Z-Lock’s defining detail is a design that eliminates side slippage, giving buyers a specific locking feature alongside support for V6 outboards up to 300 HP. It provides 5 inches of vertical adjustment and is offered in setback choices from 4 to 12 inches.

The Z-Lock design is stated to eliminate side slippage, while its aircraft-grade aluminum construction is a full 1/2 inch thick for strength. That combination makes the locking structure and material thickness central considerations for buyers fitting a higher-horsepower engine. The listed capacity covers V6 outboards up to 300 HP, and 5 inches of vertical adjustment gives a defined positioning range. Setback options from 4 through 12 inches let buyers select a transom offset that suits their layout.

Pros
  • Z-Lock design eliminates side slippage
  • Full 1/2-inch aircraft-grade aluminum
  • Handles V6 outboards up to 300 HP
  • 5 inches of vertical adjustment with 4–12-inch setback options
Cons
  • Vertical adjustment is limited to 5 inches.

Skip it if you need more than 5 inches of vertical travel; the Zerodis plate lists approximately 6.3 inches of lift.

This T-H Marine plate suits V6 outboard owners up to 300 HP who value the stated anti-slip Z-Lock design. Choose among its setback options, while keeping the 5-inch vertical range in mind.

Full product details
BrandT-H Marine
ColorBlack
Compatible with Vehicle TypeBoat
Included ComponentsT-H Marine JPZ-6-DP Z-Lock Manual Jack Plate – 6"
Item Dimensions7 x 16 x 18 inches
Item Weight3 pounds
Load Capacity8.5E+2 pounds
ManufacturerT-H Marine
Part NumberJPZ-6-DP
MaterialAluminum
Model Number3002.1
Style NameModern
Additional InformationImportant Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov Proposition 65 Warning for California Consumers WARNING: Cancer – www.P65Warnings.ca.gov

Listed on Amazon as: T-H Marine Z-Lock Manual Jack Plate

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Avoid the horsepower and transom-fit trap

A jack plate can have an impressive horsepower rating and still be a poor match for a small jon boat. The Camoo MJ-1-DP is explicitly designed for clamp-on motors up to 35 HP, while the RAJBZYT OB30-HC lists up to 30 HP; those limits are more directly relevant to many small-engine setups than the 225 HP listings on the WFLNHB JPL4500, FQRANBO 4-Inch Plate, or GELUOXI 4-Inch Plate. Do not treat the horsepower number as proof that the plate fits your transom.

Check the outboard’s mounting pattern, the transom’s available space, shaft length, and the plate’s setback and lift dimensions. Some listings provide hole measurements, while others do not.

Confirm missing dimensions and the motor’s mounting requirements before buying, especially when a product title gives a broad fit range but little detail about the boat-side fit.

Height changes can trade shallow-water clearance for reliability

Raising an outboard can help with shallow-water use, but the listed lift alone cannot establish the right operating height for a particular boat. The Zerodis Manual Plate describes approximately 6.3 inches of lift and hand-knob adjustment; the RAJBZYT OB30-HC lists 6.3 inches of vertical adjustment, while the Camoo MJ-1-DP is described as a four-inch setback plate and does not provide a comparable lift figure in the supplied details. These differences make it important to separate setback from vertical travel: they are not interchangeable measurements.

Too much or unsuitable height can compromise how the propeller runs, so check the motor maker’s mounting guidance and make adjustments cautiously. The product descriptions do not provide a tested setup height for any specific jon boat, hull, or propeller combination.

Choose an adjustable model only if its adjustment range and mounting arrangement are compatible with your setup.

How to Choose a Jon Boat Jack Plate

Outboard horsepower and mounting style

Choose a plate whose stated engine limit covers your outboard and whose mounting arrangement suits it. The Camoo MJ-1-DP is designed for clamp-on motors up to 35 HP, while the On The Fly Standard and RAJBZYT OB30-HC list limits of 30 HP. At the other end, the WFLNHB JPL4500 lists 40–225 HP, and the T-H Marine Z-Lock handles V6 outboards up to 300 HP.

For a small jon boat with a 30–35 HP motor, the smaller-rated models are the more directly matched candidates. Larger ratings may matter when your boat actually has a more powerful motor, but do not assume a broad horsepower range confirms transom or hole-pattern compatibility.

Setback and vertical adjustment

Compare setback and vertical travel as separate measurements, then check them against the boat and motor installation. The Camoo MJ-1-DP lists a four-inch setback; the RAJBZYT OB30-HC lists six inches of setback and 6.3 inches of vertical adjustment. The On The Fly Standard lists a five-inch distance between the transom bracket and motor slide, while the WFLNHB JPL4500 has six inches of setback and listed adjustable vertical movement.

A short, fixed-offset solution may suit someone correcting a shaft-to-transom mismatch, while a buyer who wants to change engine height may prefer a model with stated adjustment. Confirm how each manufacturer defines its measurements before comparing them directly.

Adjustment method and included mounting parts

Pick the adjustment method you can use safely and verify whether the listed package includes the parts your installation needs. The RAJBZYT OB30-HC uses a hand crank, the Zerodis Manual Plate describes two hand knobs, and the VELCKING MJ-1-DP lists adjustments in 20 mm increments from 0–100 mm. The On The Fly Standard describes adjustments on the water, while the Camoo MJ-1-DP includes a pre-cut, pre-grooved wooden block.

That block may be useful when its mounting design suits your boat; buyers prioritizing quick manual changes may prefer a crank or knob-style model. Listings differ in what they say about hardware, so check the package contents and installation instructions rather than assuming fasteners or transom components are included.

Which Jon Boat Jack Plate Should You Choose?

For a small jon boat with a clamp-on outboard up to 35 HP, choose the Camoo MJ-1-DP: it combines a four-inch setback with an included marine-grade wooden block. If your motor is up to 30 HP and you want to adjust its position on the water, the On The Fly Standard is a closer match. Choose the RAJBZYT OB30-HC if you specifically want a hand crank and its listed six-inch setback and 6.3-inch adjustment suit your installation.

The VELCKING MJ-1-DP offers defined incremental adjustment for an outboard up to 35 HP, but verify its material and fit details. For larger outboards, compare the higher-rated models only after confirming your boat’s transom and mounting pattern.

Treat the Zerodis lift listing cautiously because its horsepower detail is incomplete.

Frequently Asked Questions

How do I match a jack plate’s setback and mounting holes to my jon boat transom?

Compare the plate’s listed setback and mounting pattern with your transom and motor before ordering. Check the manufacturer’s dimensions and required hardware, and confirm that the transom can accept the installation. If the product listing does not provide enough detail to verify fit, contact the manufacturer rather than assuming the holes will align.

Will raising my outboard reduce draft without causing ventilation or steering problems?

Raising an outboard may help with shallow-water operation, but the right height depends on the boat, motor, and installation. Too much height can contribute to ventilation or steering issues. Follow the motor and jack plate guidance, make small adjustments where permitted, and check handling and water flow before relying on the setup.

When should I choose a manual jack plate instead of a fixed mounting plate?

Choose a manual jack plate when you want to change engine height or position and are comfortable making those adjustments by hand. A fixed mounting plate suits an installation that does not need routine repositioning. Confirm the adjustment method and range from the listing, and make sure the plate matches your motor and transom.

What should I check before choosing a plate for a higher-horsepower outboard?

Confirm that the plate’s listed horsepower range covers your outboard, then verify transom strength, mounting dimensions, and compatibility with the motor. The roundup includes options with different stated ratings, while some listings provide limited details. Do not rely on a broad title alone when the listing leaves fit or capacity unclear.

Which details matter when a jack plate listing has incomplete specifications?

Treat missing information as a reason to pause and verify, especially for horsepower capacity, mounting dimensions, adjustment range, and included hardware. The Zerodis listing’s horsepower detail is incomplete, so its suitability cannot be confirmed from the title alone. Seek clarification from the seller or manufacturer before selecting it for a specific setup.

Final Words

For a small jon boat with a clamp-on outboard up to 35 HP, the Camoo MJ-1-DP is the clearest match: it has a four-inch setback and includes a marine-grade wooden transom block. Choose the On The Fly Standard when you want to adjust a motor up to 30 HP on the water, or the RAJBZYT for its hand crank. For any option, verify horsepower, transom fit, and mounting dimensions before ordering.

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