Best Outboard Motor Jack Plate for Different Boat Setups

Best Outboard Motor Jack Plate

A strong outboard motor jack plate matches your engine’s horsepower and weight, transom layout, and desired height adjustment; that makes the right choice different for a small skiff than a high-powered fishing rig. This roundup compares 10 options, from compact 4-inch plates for motors up to 35 HP to adjustable and hydraulic models listed for engines as large as 300 HP. Bob’s Machine 6 in Jac Plate leads for its 300 HP rating, 625 lb engine-weight limit, and 7.5 inches of total lift.

Other picks suit specific needs, including shallow-water positioning, manual adjustment, or mounting a long-shaft motor to a shorter transom. Verify fitment and hardware dimensions with your boat and engine before ordering; horsepower alone does not confirm compatibility.

Bob’s Machine 6 in Jac Plate is the strongest all-around choice in this set for buyers needing substantial engine capacity and adjustable positioning. It is rated for outboards up to 300 HP and 625 lb, with a 6-inch setback, 6 inches of adjustable travel, and 1.5 inches of built-in lift for 7.5 inches total lift. Choose a smaller manual plate instead if your engine is within a lower stated limit or you specifically need a compact solution for a skiff or inflatable.

Our Top Picks

Bob's Machine 6 in Jac PlateBest Overall

Bob's Machine 6 in Jac Plate

Rated for 300 HP and 625 lb, it combines a 6-inch setback with 7.5 inches total lift and an integrated hydraulic pump.

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Winibo 6-inch Jack PlateBest Manual Lift

Winibo 6-inch Jack Plate

Its 6061 aluminum construction, 440 lb load capacity, and stated 4-inch adjustment suit buyers seeking a substantial adjustable plate.

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Bob's Machine Hydraulic Kick-Back JacShallow-Water Pick

Bob's Machine Hydraulic Kick-Back Jac

This hydraulic 6-inch setback model provides 7.5 inches total lift and is described for duck boats, jon boats, and fishing rigs.

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Compare these outboard motor jack plates

#ProductDimensionsWeightMaterialLoad CapacityBuy
16.02 x 16.73 x 13.78 in23 kgMetal23 kgView on Amazon
216 x 6 x 16 in23 lbAluminum440 lbView on Amazon
3—65 lb——View on Amazon
48 x 8 x 7 in—Aluminum1E+3 lbView on Amazon
5
FQRANBO 4-inch Jack Plate5. FQRANBO 4-inch Jack PlateHole-pattern-specific manual installs
17.1 x 13.1 x 4.4 in16 lbAluminium, Stainless Steel225 lbView on Amazon
6
GELUOXI 4-inch Jack Plate6. GELUOXI 4-inch Jack PlateManual plates for 225-HP motors
——Alloy Steel, Aluminum—View on Amazon
7
Pindex 4-inch Jack Plate7. Pindex 4-inch Jack PlateAluminum 4-inch-setback buyers
5.12 x 16.54 x 16 in18 lbAluminum—View on Amazon
816.61 x 12.79 x 4 in5.24 kgCast Aluminum, Marine Grade Transom Block1.5E+2 lbView on Amazon
9
QNCKJZV MJ-1-DP Jack Plate9. QNCKJZV MJ-1-DP Jack PlateClamp-on motor transom conversions
16.61 x 12.79 x 4 in5.24 kgCast Aluminum, Marine Grade Transom Block150 lbView on Amazon
10
On The Fly Standard Jack Plate10. On The Fly Standard Jack PlateOn-water manual adjustments
15 x 15 x 6 in23 lbAluminum150 lbView on Amazon

Detailed Reviews: Best Outboard Motor Jack Plate

Bob's Machine 6 in Jac Plate

#1 · Best Overall

1. Bob's Machine 6 in Jac Plate

  • Dimensions: 6.02 x 16.73 x 13.78 in
  • Weight: 23 kg
  • Material: Metal
  • Load Capacity: 23 kg

Best for: High-power hydraulic rigging.

Why it ranks #1: Rated for 300 HP and 625 lb, it combines a 6-inch setback with 7.5 inches total lift and an integrated hydraulic pump.

An integrated internal hydraulic pump removes the need for a separate pump mount, while this Bob's Machine plate is rated for outboards up to 300 HP and 625 pounds. Its one-piece 6-inch-setback format combines 1.5 inches of built-in lift with 6 inches of adjustable travel for motor positioning.

The internal pump can simplify rigging by keeping a separate pump mount out of the installation. For positioning, the 6-inch adjustable travel works alongside 1.5 inches of built-in lift, for 7.5 inches total lift as stated. The plate is specified for outboards up to 300 HP and 625 pounds, making those limits central to matching it to an engine. Its one-piece 6-inch setback also establishes the motor's spacing behind the transom.

Pros
  • Integrated internal hydraulic pump eliminates separate pump mount
  • Rated for outboards up to 300 HP
  • Supports motors weighing up to 625 pounds
  • Combines 1.5-inch built-in lift with 6-inch adjustable travel
Cons
  • The listed 23 kg load-capacity specification conflicts with the stated 625-pound motor limit.

Skip it if you need a clearly consistent load-capacity specification before selecting a plate; its listed capacity and motor-weight limit differ.

A boater rigging a high-power outboard who values an integrated hydraulic pump and 7.5 inches of stated total lift should consider this plate. Resolve the conflicting capacity figures before matching it to an engine.

Full product details
BrandBob's Machine
ColorSilver
Compatible with Vehicle TypeBoat
Included ComponentsBob's Machine 100-106010 Action Series Jac Plate – 6", 300 HP Max
Item Dimensions6.02 x 16.73 x 13.78 inches
Item Weight23 kg
Load Capacity23 kg
ManufacturerBob's Machine
Part Number100-106010
MaterialMetal
Model Number100-106010
Style NameAdjustable
Additional InformationImportant Information Proposition 65 Warning for California Consumers WARNING: This product can expose you to chemicals including styrene which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov

Listed on Amazon as: Bob's Machine 6 in Jac Plate 100-106010, 6 in Setback – Rated up to 300 HP

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Winibo 6-inch Jack Plate

#2 · Best Manual Lift

2. Winibo 6-inch Jack Plate

  • Dimensions: 16 x 6 x 16 in
  • Weight: 23 lb
  • Material: Aluminum
  • Load Capacity: 440 lb

Best for: Corrosion-conscious height adjustment.

Why it ranks #2: Its 6061 aluminum construction, 440 lb load capacity, and stated 4-inch adjustment suit buyers seeking a substantial adjustable plate.

T6 heat-treated 6061 aerospace aluminum is the stated material for this 6-inch Winibo plate, with corrosion resistance highlighted for harsh marine environments. Top adjustment bolts provide 4 inches of motor-height control, and the plate is described as helping mount a long-shaft engine on a short-shaft transom.

The top bolts let the operator set motor height across the stated 4-inch range, while the 6-inch plate format and short-transom application address engine positioning and setback. The listed 440-pound load capacity gives a separate weight reference for evaluating an installation. A wrench is included, supporting the adjustment workflow, and the 6061 aluminum receives T6 heat treatment. These features make the material, adjustment method, and capacity the main fit considerations in the supplied information.

Pros
  • 6-inch plate format
  • 4 inches of height adjustment via top bolts
  • T6 heat-treated 6061 aerospace aluminum
  • 440-pound listed load capacity
Cons
  • The stated vertical adjustment is limited to 4 inches.

Skip it if you require more than 4 inches of vertical height adjustment; the top bolts provide a stated 4-inch range.

A boater fitting a long-shaft engine to a short-shaft transom may value the 4-inch bolt adjustment and stated marine corrosion resistance. The vertical range is 4 inches, and capacity is listed at 440 pounds.

Full product details
BrandWinibo
ColorSilver
Compatible with Vehicle TypeBoat
Included ComponentsJack Plate, Wrench
Item Dimensions16 x 6 x 16 inches
Item Weight23 pounds
Load Capacity440 Pounds
ManufacturerWinibo
Part NumberJP5600C
MaterialAluminum
Model NumberJPL5600
Style NameBoat Jack

Listed on Amazon as: 6" Adjustable Outboard Motor Jack Plate (JP5600C)

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Bob's Machine Hydraulic Kick-Back Jac

#3 · Shallow-Water Pick

3. Bob's Machine Hydraulic Kick-Back Jac

  • Weight: 65 lb

Best for: Shallow-water fishing rigs.

Why it ranks #3: This hydraulic 6-inch setback model provides 7.5 inches total lift and is described for duck boats, jon boats, and fishing rigs.

Hydraulic kick-back action combines a 6-inch stroke with 1.5 inches of built-in lift, providing 7.5 inches of total lift for height control. Bob's Machine identifies this 6-inch-setback plate for duck boats, jon boats, and fishing rigs, with shallow-water access and motor protection among its stated purposes.

The hydraulic stroke lets a boater adjust motor height, while the additional built-in lift contributes to the stated 7.5-inch total. That range is presented as useful for shallow-water control and access. The kick-back feature is described as raising and protecting the outboard, a practical consideration for duck boats and fishing rigs. The supplied details name a 6-inch setback and 150-HP model designation, but do not provide more specific installation dimensions.

Pros
  • 6-inch hydraulic stroke for motor-height adjustment
  • 1.5-inch built-in lift contributes to 7.5 inches total
  • Kick-back action is described as raising and protecting the motor
  • Identified for duck boats, jon boats, and fishing rigs
Cons
  • The supplied specifications do not state engine-weight capacity.

Skip it if you need a listed motor-weight limit or detailed mounting-hole dimensions; neither is provided in the supplied specifications.

A duck-boat, jon-boat, or fishing-rig owner seeking hydraulic height adjustment for shallow-water use may find the kick-back format relevant. Check the engine and mounting requirements against details beyond those supplied here.

Full product details
BrandBob's Machine
Item Weight‎65 pounds
Item model number‎100-105100
Manufacturer‎Bob's Machine
Part Number‎100-105100
Model‎100-105100
Dimensions‎23 x 19 x 12 inches
Additional InformationImportant information

Listed on Amazon as: Bob's Machine 6 in Hydraulic Kick-Back Jac 100-105100, 6 in Setback, 150 HP

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JPL4500 Manual Jack Plate

#4 · High Capacity

4. JPL4500 Manual Jack Plate

  • Dimensions: 8 x 8 x 7 in
  • Material: Aluminum
  • Load Capacity: 1E+3 lb

Best for: Manual-adjustment fitment planners.

Why it ranks #4: The listing states a 1,000 lb load capacity and 6-inch manual vertical adjustment, though its feature text also inconsistently calls it hydraulic.

Precisely spaced pre-drilled mounting holes and a ratchet wrench are the practical draws of this JPL4500 manual plate. Its stated 6-inch vertical adjustment and setback capability allow engine-position changes, while the listed hole centers and vertical spacing give boat owners concrete dimensions to assess during installation planning.

The top holes are 12-7/8 inches center-to-center, the bottom holes are 9-7/8 inches center-to-center, and the vertical spacing is 8 inches; these dimensions help installers evaluate the mounting layout before work begins. The included ratchet wrench supports the manual adjustment workflow. The product description also states 6 inches of vertical adjustment with setback capability. Aluminum construction and a 1,000-pound listed load capacity round out the supplied fit and support information.

Pros
  • 6-inch manual vertical adjustment with setback capability
  • Pre-drilled for 1/2-inch stainless hardware
  • Specified top, bottom, and vertical hole spacing
  • Ratchet wrench included
Cons
  • Adjustment is manual rather than hydraulic.

Skip it if you want hydraulic motor-height control; this JPL4500 is described as a manual-adjustment jack plate.

A boat owner planning a manual installation around the specified hole pattern can use the listed dimensions and included ratchet wrench as practical reference points. The adjustment is manual, so choose accordingly.

Full product details
BrandGeneric
Color‎Silver
Compatible with Vehicle TypeBoat
Included ComponentsJack Plate Ratchet Wrench
Item Dimensions8 x 8 x 7 inches
Load Capacity1E+3 Pounds
ManufacturerREVOTUNE
Part Number01
Manufacturer Warranty Description2 Years
MaterialAluminum
Model NumberLJ-4500-WB
Style NameFashion

Listed on Amazon as: JPL4500 Adjustable 6" Manual Jack Plate for Outboard Motor | Boat Steering System Upgrade

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FQRANBO 4-inch Jack Plate

#5

5. FQRANBO 4-inch Jack Plate

  • Dimensions: 17.1 x 13.1 x 4.4 in
  • Weight: 16 lb
  • Material: Aluminium, Stainless Steel
  • Load Capacity: 225 lb

Best for: Hole-pattern-specific manual installs.

Why it ranks #5: Rated for outboards up to 225 HP, it offers 4 inches of vertical movement and lists specific mounting-hole spacing for fit checks.

Pre-drilled mounting dimensions make this FQRANBO plate easier to evaluate against an existing installation: the top holes span 12-7/8 inches, the bottom holes 9-7/8 inches, and vertical spacing is 8 inches. It offers 4 inches of vertical movement and setback for motors up to 225 HP.

The specified hole pattern is for 1/2-inch stainless hardware, giving installers measurements to compare with the transom and engine mounting arrangement before fitting. Once installed, the plate provides 4 inches of vertical movement and 4 inches of setback, supporting motor-height and fore-aft positioning. Its aluminum and stainless-steel materials are listed alongside a 225-HP engine limit. The product is manual, so adjustment uses the plate's stated manual operation rather than a powered system.

Pros
  • 4 inches of vertical movement
  • 4 inches of setback
  • Pre-drilled for 1/2-inch stainless hardware
  • Specified for outboards up to 225 HP
Cons
  • Manual adjustment requires operating the plate by hand.

Skip it if you need powered height adjustment; this product is specified for manual operation.

A boat owner with a mounting layout suited to the stated hole spacing can use the 4-inch vertical movement and setback for manual positioning. Keep its 225-HP limit and manual operation in mind.

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 Jack Plate

#6

6. GELUOXI 4-inch Jack Plate

  • Material: Alloy Steel, Aluminum

Best for: Manual plates for 225-HP motors.

Why it ranks #6: This manual 4-inch setback plate is listed for engines up to 225 HP and supports mounting long-shaft motors on short-shaft transoms.

A one-piece aluminum-alloy plate with steel fasteners provides a manual, 4-inch-setback option for outboards rated up to 225 HP. GELUOXI lists it for transom mounting and describes height and setback adjustment, including use when fitting a long-shaft engine to a short-shaft transom.

The manual operation means motor positioning is handled without a powered adjustment system, while the stated 4-inch setback creates separation between the engine and transom. Its aluminum-alloy body and steel fasteners make up the listed one-piece construction. The application details identify outboard motors up to 225 HP and describe use on jon boats and similar small-to-mid-size boats. Buyers should treat those engine and boat descriptions as the stated scope when selecting a plate.

Pros
  • Manual operation for outboard positioning
  • 4-inch setback
  • Specified for outboards up to 225 HP
  • One-piece aluminum-alloy construction with steel fasteners
Cons
  • The supplied details do not specify adjustment travel beyond the 4-inch setback.

Skip it if you need a stated vertical-adjustment range; the supplied specifications give 4-inch setback but no vertical travel figure.

A small-to-mid-size boat owner seeking a manual transom plate for an outboard up to 225 HP can consider this 4-inch-setback option. The supplied details do not establish its vertical travel range.

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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Pindex 4-inch Jack Plate

#7

7. Pindex 4-inch Jack Plate

  • Dimensions: 5.12 x 16.54 x 16 in
  • Weight: 18 lb
  • Material: Aluminum

Best for: Aluminum 4-inch-setback buyers.

Why it ranks #7: Its 4-inch adjustable format and stated 225 HP maximum fit buyers seeking a manual plate, though detailed specifications are limited.

A compact 4-inch adjustable manual format is the defining detail in the Pindex product title, which also specifies a 225-HP maximum. Its listed aluminum construction and 18-pound weight help frame storage and handling considerations, while the supplied information identifies it as an outboard motor jack plate.

The 4-inch adjustment and manual operation, as stated in the title, suit buyers seeking a straightforward positioning plate rather than a hydraulic system. Aluminum is the listed material, and the 18-pound product weight offers a concrete handling reference during installation planning. The title gives a 225-HP maximum, but the supplied specifications do not provide mounting-hole dimensions or further adjustment details. Those gaps limit how specifically the fit can be assessed from the available product facts.

Pros
  • 4-inch adjustable manual format stated in title
  • 225-HP maximum stated in title
  • Aluminum construction
  • Listed product weight is 18 pounds
Cons
  • The supplied specifications do not include mounting-hole dimensions.

Skip it if you need mounting-hole spacing or detailed installation dimensions before choosing a plate; those figures are not supplied here.

A buyer seeking an aluminum manual plate in the stated 4-inch and 225-HP class can use the available details as a starting point. The missing hole dimensions limit fit assessment.

Full product details
BrandPindex
ColorSliver
Included ComponentsJack Plate
Item Dimensions5.12 x 16.54 x 16 inches
Item Weight18 pounds
Dimensions5.12 x 16.54 x 16 inches
ManufacturerPindex
Part Number11602001
MaterialAluminum
Model Number11602001

Listed on Amazon as: Pindex 4" Adjustable Outboard Motor Jack Plate Manual for Boat Steering System Weighs 24 lbs 225 Maximum Horsepower

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Camoo MJ-1-DP Jack Plate

#8 · Small-Engine Pick

8. Camoo MJ-1-DP Jack Plate

  • Dimensions: 16.61 x 12.79 x 4 in
  • Weight: 5.24 kg
  • Material: Cast Aluminum, Marine Grade Transom Block
  • Load Capacity: 1.5E+2 lb

Best for: Small-boat long-shaft conversions.

Why it ranks #8: Designed for clamp-on outboards up to 35 HP, it includes a pre-cut marine-grade wooden block for skiffs, aluminum boats, and inflatables.

A pre-cut, pre-grooved marine-grade wooden block comes with this 4-inch-setback cast-aluminum plate, giving clamp-on motors a shaped mounting surface. It supports outboards up to 35 HP and is intended for skiffs, aluminum boats, and inflatables, including setups that pair a long-shaft motor with a shorter-shaft transom.

The 4-inch offset places the motor farther from the transom, while the included grooved block is specified to fit the plate and help make the motor installation firm. That combination addresses both spacing and mounting on a short-transom boat using a long-shaft engine. Its stated 35-HP ceiling and clamp-on application narrow the intended setup; the listed compatible craft are skiffs, aluminum boats, and inflatables. Cast aluminum supplies the plate material.

Pros
  • 4-inch setback adds distance between motor and transom
  • Supports clamp-on outboards up to 35 HP
  • Pre-cut, pre-grooved marine-grade wooden block included
  • Listed for skiffs, aluminum boats, and inflatables
Cons
  • Limited to clamp-on outboards rated up to 35 HP.

Skip it if you need more than 4 inches of setback or an engine above 35 HP; this plate is specified for clamp-on motors only.

A skiff, aluminum-boat, or inflatable owner fitting a clamp-on motor up to 35 HP gets a supplied mounting block and 4-inch offset. Keep the horsepower and clamp-on requirements in view.

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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QNCKJZV MJ-1-DP Jack Plate

#9

9. QNCKJZV MJ-1-DP Jack Plate

  • Dimensions: 16.61 x 12.79 x 4 in
  • Weight: 5.24 kg
  • Material: Cast Aluminum, Marine Grade Transom Block
  • Load Capacity: 150 lb

Best for: Clamp-on motor transom conversions.

Why it ranks #9: Its 35 HP limit and included pre-cut wooden block suit small clamp-on motors, but it substantially overlaps the Camoo configuration.

The included pre-cut, pre-grooved wooden block gives this 4-inch-setback cast-aluminum plate a ready-matched mounting component. QNCKJZV lists it for clamp-on outboards up to 35 HP and describes using a long-shaft motor on a shorter-shaft transom, particularly on skiffs, aluminum boats, and inflatables.

The offset moves the motor 4 inches from the transom, while the supplied marine-grade block is shaped for the plate and supports a firm installation, according to the product details. Together, those features address the spacing and mounting needs of the described long-shaft-to-short-transom conversion. The stated 35-HP maximum and clamp-on mounting are important limits. The compatible craft listed are skiffs, aluminum boats, and inflatables; the plate is cast aluminum.

Pros
  • 4-inch setback
  • Pre-cut, pre-grooved wooden mounting block included
  • Cast-aluminum plate with marine-grade transom block
  • Specified for clamp-on motors up to 35 HP
Cons
  • Limited to clamp-on outboards rated up to 35 HP.

Skip it if you need a plate for an engine above 35 HP or a mounting style other than clamp-on; those are outside its stated application.

A skiff, aluminum-boat, or inflatable owner converting a short transom for a clamp-on long-shaft motor up to 35 HP gets the supplied block and 4-inch offset. Check that application boundary.

Full product details
BrandQNCKJZV
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 Capacity150 pounds
ManufacturerQNCKJZV
Part NumberMJ-1-DP
Manufacturer Warranty Description1 year warranty
MaterialCast Aluminum, Marine Grade Transom Block
Model NumberMJ-1-DP
Style NameManual

Listed on Amazon as: MJ-1-DP 4'' Setback Jack Plate for Outboard Motors Up to 35HP – Manual Lift System with Wooden Mounting Block Included – Enhance Engine Performance & Distance from Transom

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On The Fly Standard Jack Plate

#10

10. On The Fly Standard Jack Plate

  • Dimensions: 15 x 15 x 6 in
  • Weight: 23 lb
  • Material: Aluminum
  • Load Capacity: 150 lb

Best for: On-water manual adjustments.

Why it ranks #10: It supports motors up to 30 HP without factory trim and tilt, making its stated engine fit narrower than the other options here.

On-the-water adjustment is the central convenience of this On The Fly manual plate: its description says motor position can be changed at any time, with adjustments made in seconds. It supports motors up to 30 HP without factory trim and tilt, and uses high-grade marine aluminum.

The stated ability to adjust while on the water lets operators respond to changing conditions without waiting until they return to shore. The plate is intended for outboards up to 30 HP that lack factory trim and tilt, defining a specific small-motor use case. Its manual operation keeps the adjustment method straightforward, and the supplied additional facts identify a 5-inch distance between the transom bracket and motor slide, with variation by mounting position.

Pros
  • Can be adjusted on the water
  • Description states adjustments take seconds
  • Supports up to 30-HP motors without factory trim and tilt
  • High-grade marine aluminum construction
Cons
  • Limited to motors up to 30 HP without factory trim and tilt.

Skip it if you run an outboard above 30 HP or one with factory trim and tilt; this plate's stated application is narrower.

A small-boat operator with an outboard up to 30 HP and no factory trim and tilt may value the ability to reposition the motor on the water. Its stated horsepower and trim requirements define the fit.

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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Check the complete mounting path, not just horsepower

A horsepower rating alone cannot confirm that a jack plate will fit your boat. The FQRANBO listing gives mounting-hole dimensions—12 7/8 inches between the top holes, 9 7/8 inches between the bottom holes, and 8 inches vertically—so buyers can compare a specific pattern, but the other listings do not provide equally complete geometry. The Camoo and QNCKJZV plates include a wooden mounting block and are aimed at clamp-on motors up to 35 HP; that is a distinct mounting scenario from higher-capacity plates.

Before buying, compare the plate’s hole pattern and mounting method with the transom and engine brackets, and confirm that the structure can accept the resulting load. Do not treat the listed engine horsepower or accessory load capacity as a substitute for checking boat-manufacturer limits, fastener requirements, and installation instructions.

Setback and lift change the setup trade-off

More setback and lift can offer more positioning range, but the figures describe different things and should not be compared as if they were identical. Bob’s Machine 6 in Jac Plate lists a 6-inch setback, 6 inches of adjustable travel, and 1.5 inches of built-in lift, for 7.5 inches total lift. The hydraulic kick-back model also lists a 6-inch stroke plus 1.5 inches of built-in lift, while the Winibo plate lists 4 inches of height adjustment and a 6-inch format in its product title.

Small plates such as Camoo MJ-1-DP Jack Plate instead emphasize a 4-inch setback and fitting long-shaft engines to shorter transoms. Consider the clearance, steering and control connections, and intended operating position on your boat before selecting a larger setback or lift range; the product figures alone do not establish the right setup.

How to Choose an Outboard Motor Jack Plate

Engine horsepower and weight limits

Start by matching the plate’s stated engine limit to your outboard, and check weight separately wherever the listing provides it. This set ranges from On The Fly Standard Jack Plate at up to 30 HP and Camoo MJ-1-DP Jack Plate at up to 35 HP to Bob’s Machine 6 in Jac Plate at up to 300 HP and 625 lb. Winibo 6-inch Jack Plate lists a 440 lb load capacity, while the FQRANBO and GELUOXI models state 225 HP.

The small-engine end suits clamp-on motors on skiffs or inflatables; the higher-rated options address larger engines. These ratings are not proof of transom suitability, so also confirm the boat maker’s limits and the complete installed load.

Adjustment style and useful travel

Choose manual or hydraulic operation according to how often you expect to reposition the motor and what adjustment the listing actually specifies. The Bob’s Machine 6 in Jac Plate has an integrated hydraulic pump, 6 inches of travel, and 1.5 inches built in; the hydraulic kick-back model lists the same total lift. Manual choices include the JPL4500 Manual Jack Plate, listed with 6-inch vertical adjustment, and FQRANBO 4-inch Jack Plate, which lists 4 inches of movement.

Winibo 6-inch Jack Plate lists 4 inches of adjustment. Hydraulic models may suit frequent positioning changes, while manual formats may suit a simpler fixed or occasional adjustment routine.

Confirm the adjustment mechanism and operating requirements with the manufacturer, especially where listing details conflict.

Setback, transom fit, and included parts

Compare setback and mounting geometry with your hull and motor before focusing on the headline size. Several products are 4-inch setback designs, while Bob’s Machine 6 in Jac Plate and the hydraulic kick-back plate list 6-inch setbacks. Camoo MJ-1-DP Jack Plate and QNCKJZV MJ-1-DP Jack Plate include a pre-cut, pre-grooved wooden block; that can matter for their small clamp-on application, but does not replace checking transom fit.

FQRANBO provides specific hole spacing, and Winibo includes a wrench. A 4-inch plate with the included block may better fit a small-boat mounting problem, while a 6-inch option may suit buyers seeking more setback.

Verify hole pattern, shaft and transom relationship, clearance, and required hardware before choosing.

Which Outboard Motor Jack Plate Fits My Boat?

For a higher-powered outboard and a need for hydraulic positioning, choose Bob’s Machine 6 in Jac Plate: it is rated up to 300 HP and 625 lb, with 7.5 inches of total lift. For a hydraulic fishing or shallow-water setup with a lower stated engine limit, Bob’s Machine Hydraulic Kick-Back Jac lists a 150 HP application and 7.5 inches total lift. If you prefer a manual adjustable plate, compare Winibo 6-inch Jack Plate, listed at 440 lb with 4 inches of adjustment, and FQRANBO 4-inch Jack Plate, listed up to 225 HP with detailed hole spacing.

For a clamp-on motor up to 35 HP on a small boat, Camoo MJ-1-DP Jack Plate includes a wooden block. Confirm transom pattern and capacity before ordering.

Frequently Asked Questions

How do I determine whether a jack plate fits my boat’s transom and engine mounting pattern?

Check the plate’s mounting-hole pattern against both your transom and outboard, and confirm that the plate’s stated engine capacity covers your motor. Compare the listed measurements with your boat and engine documentation, and ask the manufacturer or a qualified marine professional if any pattern or capacity detail is unclear before ordering.

How much setback and vertical lift should I use for my hull and typical water conditions?

Choose setback and lift based on your hull, engine, and usual water conditions; there is no single setting that suits every boat. Compare the plate’s stated setback and adjustment range, and consult your boat or engine manufacturer or a qualified installer. The listed measurements are useful for comparison, not a guarantee of performance.

When should I choose a hydraulic jack plate instead of a manual model?

Choose hydraulic positioning when you need to adjust engine height while operating; choose a manual plate when you prefer to set the position mechanically. Also check the engine limit and lift details: the Bob’s Machine hydraulic kick-back plate lists a 150 HP application, while the 6-inch Jac Plate is rated up to 300 HP and 625 lb.

What does setback mean on an outboard jack plate?

Setback is the distance the plate places the outboard behind the transom. Compare the stated distance with your boat’s setup and the plate’s other fit requirements, including mounting pattern and engine capacity. A setback figure alone does not confirm compatibility, so verify the complete installation details before selecting a plate.

Why do some jack plates include a wooden mounting block?

A wooden mounting block is included with the Camoo MJ-1-DP options identified in this roundup, including the manual-lift listing. Check the specific product listing to confirm what comes with the plate, then verify that the plate’s engine limit and mounting arrangement suit your motor and boat.

Final Words

For substantial engine capacity and adjustable positioning, Bob’s Machine 6 in Jac Plate is the strongest all-around choice here, with a stated limit of 300 HP and 625 lb. Choose a smaller manual plate when its stated capacity fits your engine or you need a compact setup. For hydraulic positioning with a lower stated engine limit, consider the Kick-Back Jac.

Before ordering, confirm transom pattern, engine capacity, setback, and lift.

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