Best Hydraulic Jack Plate For 115 Hp Outboard

Best Hydraulic Jack Plate For 115 Hp Outboard

A strong jack plate for a 115 hp outboard should explicitly cover that horsepower, provide useful vertical adjustment, and fit the boat’s transom and rigging. The RisWhiteMeteors 6-inch model is a direct match on listed engine range, with compatibility stated for 10–150 hp and 6.7 inches of travel. This roundup also includes plates rated well above 115 hp, plus options with different setbacks, lift descriptions, and pump arrangements.

Those higher-capacity models may suit a 115 hp engine, but horsepower alone cannot establish whether a plate fits a particular boat. Compare setback and mounting requirements with your boat and motor before choosing.

The rankings favor stated compatibility with a 115 hp motor first, then useful specifications and installation details documented in the listings.

For a 115 hp outboard, the RisWhiteMeteors 6-inch Electric Hydraulic Jack Plate leads because its stated 10–150 hp range directly includes the target motor, and its 6.7 inches of vertical travel offers useful adjustment. It also lists a manual release valve and a 12-month warranty. The Winibo 8-inch 150 hp model is another close fit, but has a longer setback.

Confirm transom compatibility and installation requirements before ordering either plate.

Our Top Picks

RisWhiteMeteors 6-inch PlateBest Overall

RisWhiteMeteors 6-inch Plate

Its stated 10–150 hp range includes a 115 hp outboard, with 6.7 inches of travel, a manual release valve, and a listed 12-month warranty.

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Winibo 8-inch 150 hp Plate150 hp Match

Winibo 8-inch 150 hp Plate

Rated for outboards up to 150 hp, it offers 6.69 inches of stepless lift and lists corrosion-protection treatments for marine use.

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Bob's Machine 6-inch Action PlateCompact Setback

Bob's Machine 6-inch Action Plate

Its 6-inch setback and integrated hydraulic pump suit buyers seeking a short setback; the plate is rated up to 300 hp and lists 7.5 inches total lift.

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Compare setback, lift, and fit before choosing

#ProductDimensionsWeightLoad CapacityMaterialBuy
1————View on Amazon
216.54 x 11.02 x 17.72 in44.5 lb7055 lbAluminum-Alloy, Stainless SteelView on Amazon
36.02 x 16.73 x 13.78 in23 kg23 kgMetalView on Amazon
4—70 lb300 hpAlloy SteelView on Amazon
5
Volantixi 8-inch Action Plate5. Volantixi 8-inch Action PlateFast-lift 8-inch setup
18.5 x 14.17 x 13.39 in——AluminumView on Amazon
621.5 x 18.5 x 6.75 in51 lb625 lbAluminumView on Amazon
7
Bob's Machine 10-inch Action Plate7. Bob's Machine 10-inch Action Plate10-inch setback, 7.5-inch lift
10 x 16.73 x 13.78 in27 kg61 lbAluminumView on Amazon
8
Bob's Machine 12-inch Action Plate8. Bob's Machine 12-inch Action PlateLong setback, internal pump
—66 lb——View on Amazon
920.5 x 18.2 x 11.8 in69 lb625 lbPlasticView on Amazon
10
Winibo 8-inch 350 hp Plate10. Winibo 8-inch 350 hp PlateHigh-capacity electric adjustment
——625 lbAluminum, Stainless SteelView on Amazon

Detailed Reviews: Best Hydraulic Jack Plate For 115 Hp Outboard

RisWhiteMeteors 6-inch Plate

#1 · Best Overall

1. RisWhiteMeteors 6-inch Plate

Best for: Broad-brand 115 hp fit.

Why it ranks #1: Its stated 10–150 hp range includes a 115 hp outboard, with 6.7 inches of travel, a manual release valve, and a listed 12-month warranty.

Compatibility with outboards from 10 to 150 hp puts this RisWhiteMeteors plate within range for a 115 hp engine, while its 6.7 inches of vertical travel enables height adjustment across boating conditions. Electric hydraulic operation raises or lowers the motor without manual repositioning.

The stated compatibility includes many Mercury, Yamaha, Suzuki, and Honda engines, giving buyers of those brands a concrete starting point for a 115 hp setup. Its 6.7-inch vertical travel supplies room to alter mounting height for different boating conditions. Electric hydraulic lifting changes the motor height without manual repositioning, and the built-in manual release valve provides a manual release option. The listed 150 hp maximum is the key capacity boundary for this model.

Pros
  • Rated for outboards from 10 to 150 hp.
  • 6.7 inches of vertical adjustment.
  • Electric hydraulic lifting avoids manual repositioning.
  • Manual release valve is included.
Cons
  • The 150 hp maximum leaves less rated horsepower headroom than 300 hp models.

Skip it if you need a setback dimension or load rating stated before choosing; the listing provides neither, while Bob’s Machine 100-106010 specifies a 6-inch setback and 625-pound capacity.

This is a candidate for owners of a 115 hp Mercury, Yamaha, Suzuki, or Honda seeking electric hydraulic height adjustment. Its stated ceiling is 150 hp, so it offers less horsepower headroom than higher-rated plates.

Full product details
BrandRisWhiteMeteors
Included Components1 Pack
ManufacturerRisWhiteMeteors
Part NumberZZ001
Manufacturer Warranty Description12-Month
Model Number6 Inch Electric Hydraulic Jack Plate

Listed on Amazon as: 6" Electric Hydraulic Jack Plate for 10-150 HP Outboard Motors, 6.7 Inch Vertical Travel, Manual Release Valve, Universal Fit ZZ001

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Winibo 8-inch 150 hp Plate

#2 · 150 hp Match

2. Winibo 8-inch 150 hp Plate

  • Dimensions: 16.54 x 11.02 x 17.72 in
  • Weight: 44.5 lb
  • Load Capacity: 7055 lb
  • Material: Aluminum-Alloy, Stainless Steel

Best for: Saltwater-focused electric lift.

Why it ranks #2: Rated for outboards up to 150 hp, it offers 6.69 inches of stepless lift and lists corrosion-protection treatments for marine use.

Electrophoresis coating and anodic protection give this Winibo plate corrosion-focused protection for harsh saltwater environments, while one-touch control operates its 6.69-inch stepless vertical lift. That combination enables convenient motor-height changes with a stated protective treatment for marine use.

The 8-inch setback and 6.69-inch stepless travel provide distinct dimensions for planning both motor placement and height adjustment. One-touch control lets the operator raise or lower the motor with a button press, rather than manually repositioning it. The plate is rated for outboards up to 150 hp, which includes a 115 hp engine, and its listed 7,055-pound lifting capacity describes its lifting capability. Aluminum-alloy and stainless-steel construction accompany the coating and anodic protection.

Pros
  • One-touch control operates the vertical lift.
  • 6.69-inch stepless vertical travel.
  • Electrophoresis coating and anodic protection target corrosion resistance.
  • Rated for outboards up to 150 hp.
Cons
  • The 150 hp maximum offers less horsepower headroom than 300 hp-rated plates.

Skip it if you need a 300 hp rating or more than 6.69 inches of vertical travel; Winibo’s JPH3500 lists 350 hp capacity and 7.5 inches of lift.

Consider this for a 115 hp outboard used in saltwater where treated surfaces and button-operated adjustment matter. Its 150 hp ceiling and 6.69-inch travel are the relevant boundaries when planning capacity and movement.

Full product details
BrandWinibo
ColorBlack
Compatible with Vehicle TypeBoat
Included ComponentsElectric Hydraulic Jack Plate
Item Dimensions16.54 x 11.02 x 17.72 inches
Item Weight44.5 pounds
Load Capacity7055 Pound
ManufacturerWinibo
Part NumberJPH1500
Manufacturer Warranty Description1 year warranty
MaterialAluminum-Alloy, Stainless Steel
Model NumberJPH1500
Style NameElectric Hydraulic Jack Plate

Listed on Amazon as: 8" Electric Hydraulic Jack Plate for Outboard Motor up to 150HP

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Bob's Machine 6-inch Action Plate

#3 · Compact Setback

3. Bob's Machine 6-inch Action Plate

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

Best for: Compact setback, integrated pump.

Why it ranks #3: Its 6-inch setback and integrated hydraulic pump suit buyers seeking a short setback; the plate is rated up to 300 hp and lists 7.5 inches total lift.

An internal hydraulic pump removes the need for a separate pump mount, while this Bob’s Machine plate combines a 6-inch setback with 7.5 inches of total lift. For a 115 hp outboard, that setup enables adjustable motor positioning without adding a separate pump mount to the rigging arrangement.

The one-piece plate provides 1.5 inches of built-in lift and 6 inches of adjustable travel, giving you a defined range for changing outboard height. Its 6-inch setback keeps the plate’s extension more compact than the 10- and 12-inch versions in this range. The integrated pump also avoids a separate pump mount, which can simplify the rigging layout. Its 300 hp and 625-pound ratings provide capacity well beyond a 115 hp engine.

Pros
  • Integrated hydraulic pump eliminates a separate pump mount.
  • 6-inch setback offers a compact plate layout.
  • 1.5-inch built-in lift plus 6 inches of adjustable travel.
  • Rated for outboards up to 300 hp and 625 pounds.
Cons
  • The 6-inch setback provides less extension than longer-setback configurations.

Skip it if you need a setback longer than 6 inches; Bob’s Machine’s 10-inch 100-111000 is a closer match for that layout.

Choose this for a 115 hp boat needing hydraulic height adjustment, an integrated pump, and a compact 6-inch setback. Its 7.5 inches of total lift offer adjustment, but the shorter setback may not suit layouts needing more extension.

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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Bob's Machine 6-inch Standard Plate

#4 · Installation Kit

4. Bob's Machine 6-inch Standard Plate

  • Weight: 70 lb
  • Load Capacity: 300 hp
  • Material: Alloy Steel

Best for: Complete standard-plate rigging.

Why it ranks #4: The 6-inch setback and 7.5 inches of lift are relevant to this setup, and listed components include a pump, wiring harness, hoses, switch, and oil.

The supplied pump, wiring harness, hoses, control switch, and oil make this Bob’s Machine standard plate a complete listed rigging package. Its 6-inch setback and 7.5 inches of lift enable hydraulic outboard adjustment, while its 300 hp and 625-pound compatibility includes a 115 hp motor.

The included pump, harness, hoses, switch, and oil give buyers a defined set of components for setting up the hydraulic plate. The remote-mount pump stays dry and secure in an internal location, reducing wear according to the listing. A 6-inch setback keeps the extension compact, and the 7.5-inch lift supplies adjustment range for positioning the motor. Alloy steel construction and compatibility with engines up to 300 hp and 625 pounds complete the stated fit details.

Pros
  • Includes pump, wiring harness, hoses, control switch, and oil.
  • Remote-mount pump stays dry in an internal location.
  • 6-inch setback and 7.5 inches of lift.
  • Compatible with outboards up to 300 hp and 625 pounds.
Cons
  • The supplied pump is a remote-mount design rather than an integrated internal pump.

Skip it if you prefer an integrated pump that eliminates a separate mount; Bob’s Machine 100-106010 uses an integrated internal pump with a 6-inch setback.

This suits a 115 hp owner wanting a listed pump-and-control package and 6-inch setback with hydraulic lift. Its remote-mount pump arrangement is the key rigging distinction to consider.

Full product details
BrandBob's Machine
ColorSilver
Compatible with Vehicle TypeOutboard Motor on Boats
Item Weight70 pounds
Load Capacity300 hp
ManufacturerBob's Machine
Part Number100-106000
MaterialAlloy Steel
Model NumberBobs Machine Shop 100-106000; Jack Plat
Style Namehydraulic

Listed on Amazon as: Bob's Machine 100-106000 Standard Hydraulic Jack Plate 6" Setback 300HP Outboard

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Volantixi 8-inch Action Plate

#5

5. Volantixi 8-inch Action Plate

  • Dimensions: 18.5 x 14.17 x 13.39 in
  • Material: Aluminum

Best for: Fast-lift 8-inch setup.

Why it ranks #5: Its 8-inch setback, 7.5-inch lift, and 300 hp maximum provide clear specifications, though the stated capacity is well above a 115 hp motor.

This Volantixi Action Series plate states that it lifts heavy outboards under full power within six seconds, pairing that operating speed with 7.5 inches of vertical lift. Its 8-inch setback and 300 hp rating put a 115 hp motor within the listed capacity range.

The one-piece design has an internally mounted hydraulic pump, which the listing connects to simple rigging and avoids the need for extra C-channels to extend setback. Its 1.5-inch built-in lift plus 6 inches of adjustable travel make up the stated 7.5-inch vertical range. The 8-inch setback defines the plate’s extension, while the 300 hp and 625-pound ratings provide capacity headroom for a 115 hp outboard. The plate itself weighs 56 pounds.

Pros
  • Lifts under full power within six seconds, as stated.
  • 7.5 inches of vertical lift.
  • Internally mounted pump simplifies rigging.
  • 8-inch setback and 300 hp maximum rating.
Cons
  • The 56-pound plate weight is a substantial item to account for during installation.

Skip it if you need a lighter listed plate; Bob’s Machine 100-106010 lists a 23 kg weight and a 6-inch setback.

This fits a 115 hp owner who values the stated six-second lift, internal pump, and 8-inch setback. Account for the listed 56-pound plate weight when planning installation and transom setup.

Full product details
BrandVolantixi
Color‎As Pics Shown
Included Components‎As Pics Shown
Item Dimensions LxWxH‎18.5 x 14.17 x 13.39 inches
Item Package Dimensions L x W x H‎22 x 19 x 14 inches
Manufacturer‎Volantixi
Material‎Aluminum
Model‎Boat Jack Plate
Package Weight‎25 kg
Warranty Description‎Our warranty is valid for a maximum of 24 months with no mileage limit.

Listed on Amazon as: 100-108001 Action Series Hydraulic Jack Plate, 8 Inch Setback, Max 300 HP, 7.5" Lift for Outboard Motors, Up to 625 lbs

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T-H Marine Atlas 4-inch Plate

#6 · Shortest Setback

6. T-H Marine Atlas 4-inch Plate

  • Dimensions: 21.5 x 18.5 x 6.75 in
  • Weight: 51 lb
  • Load Capacity: 625 lb
  • Material: Aluminum

Best for: Compact Atlas hydraulic plate.

Why it ranks #6: The 4-inch setback is the shortest stated here, and its 625-pound load capacity is listed; the plate is designed for outboards up to 300 hp.

The Atlas plate’s 4-inch setback is the shortest specified dimension in this group, giving a 115 hp owner a compact extension behind the transom. Its aluminum construction and heavy-duty description pair that compact footprint with a hydraulic plate rated for loads up to 625 pounds.

A 4-inch setback can suit buyers who want a shorter plate extension than the 6-, 8-, 10-, or 12-inch options listed elsewhere. The one-piece design uses a Rod and Slot lifting system, which the description says handles stresses from heavy, powerful outboards. The product is rated up to 300 hp or 625 pounds, so a 115 hp engine falls well below its stated horsepower ceiling. Quick and simple installation is also claimed in the listing.

Pros
  • 4-inch setback for a compact extension.
  • Aluminum construction.
  • Rod and Slot lifting system in a one-piece design.
  • Rated up to 300 hp or 625 pounds.
Cons
  • The 4-inch setback offers less extension than longer plate configurations.

Skip it if you need at least 8 inches of setback; Bob’s Machine 100-108001 specifies an 8-inch setback and 7.5-inch lift.

Consider this Atlas for a 115 hp boat where a 4-inch setback is the priority and a hydraulic plate rated well above the engine’s horsepower is suitable. Its limited setback is the key layout boundary.

Full product details
BrandT-H Marine
ColorBlack
Compatible with Vehicle TypeBoat
Included ComponentsAtlas AHJ-4V-B-DP Hydraulic Jack Plate Setback – Black, 4"
Item Dimensions21.5 x 18.5 x 6.75 inches
Item Weight51 pounds
Load Capacity625 pound
ManufacturerAtlas
Part NumberAHJ-4V-B-DP
Manufacturer Warranty Description90 days
MaterialAluminum
Model NumberAHJ-4V-B-DP
Style NameClassic
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 Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

Listed on Amazon as: Atlas AHJ-4V-B-DP Hydraulic Jack Plate Setback – Black, 4"

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Bob's Machine 10-inch Action Plate

#7

7. Bob's Machine 10-inch Action Plate

  • Dimensions: 10 x 16.73 x 13.78 in
  • Weight: 27 kg
  • Load Capacity: 61 lb
  • Material: Aluminum

Best for: 10-inch setback, 7.5-inch lift.

Why it ranks #7: It offers 7.5 inches of total lift and an integrated pump, but its 10-inch setback may not suit boats that need a shorter extension.

This Bob’s Machine plate combines a 10-inch setback with 7.5 inches of total lift, enabling motor-height adjustment on a longer-extension setup. Its internal hydraulic pump also eliminates the need for a separate pump mount, while the 300 hp rating covers a 115 hp outboard.

The plate’s 1.5 inches of built-in lift plus 6 inches of adjustable travel provide the full stated 7.5-inch range for positioning the outboard. A 10-inch setback defines its extension from the transom, useful for buyers who need more reach than the 6-inch version. The integrated pump keeps a separate pump mount out of the rigging arrangement. Its 300 hp rating provides headroom, though the listing’s load-capacity specification is inconsistent with the stated 625-pound motor capacity in the features.

Pros
  • 10-inch setback.
  • 1.5 inches built-in lift plus 6 inches of adjustable travel.
  • Integrated internal pump eliminates a separate pump mount.
  • Features state a rating up to 300 hp and 625 pounds.
Cons
  • The listed load-capacity specification conflicts with the 625-pound capacity stated in the features.

Skip it if you need an unambiguous listed load-capacity specification; Bob’s Machine 100-106010 lists a 6-inch setback and 625-pound maximum in its features.

Choose this for a 115 hp setup needing 10 inches of setback, 7.5 inches of lift, and an integrated pump. Resolve the conflicting load-capacity information before relying on its stated weight rating.

Full product details
BrandBob's Machine
Compatible with Vehicle TypeBoat
Included ComponentsBob's Machine 100-111000 Action Series Jac Plate – 10", 300 HP Max
Item Dimensions10 x 16.73 x 13.78 inches
Item Weight27 kg
Load Capacity61 pounds
ManufacturerBob's Machine
Part Number100-111000
Manufacturer Warranty Descriptionlifetime on structure to original owner
MaterialAluminum
Model Number100-111000
Style Namehydraulic
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 10 in Jac Plate 100-111000, 10 in Setback Rated up to 300 HP

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Bob's Machine 12-inch Action Plate

#8

8. Bob's Machine 12-inch Action Plate

  • Weight: 66 lb

Best for: Long setback, internal pump.

Why it ranks #8: Its integrated pump and 7.5 inches of total lift are useful, but the 12-inch setback is the longest listed and may be excessive for some boats.

A 12-inch setback extends this Bob’s Machine plate farther than its 6-inch counterpart, while the integrated hydraulic pump eliminates a separate pump mount. Its 7.5 inches of total lift lets a 115 hp operator adjust motor position within a plate rated for much larger outboards.

The one-piece construction combines 1.5 inches of built-in lift with 6 inches of adjustable travel, giving the operator a specified 7.5-inch lift range. A 12-inch setback provides the longer extension for transom layouts that call for it. The internal pump keeps a separate pump mount out of the rigging plan. Rated up to 300 hp and 625 pounds, the plate has substantial capacity headroom for a 115 hp motor.

Pros
  • 12-inch setback provides longer extension.
  • Integrated internal pump needs no separate pump mount.
  • 1.5 inches built-in lift plus 6 inches adjustable travel.
  • Rated up to 300 hp and 625 pounds.
Cons
  • The 12-inch setback extends farther than a 6-inch plate.

Skip it if you need a compact 6-inch setback; Bob’s Machine 100-106010 uses that shorter setback with the same stated total lift.

Choose this for a 115 hp boat whose layout calls for a 12-inch setback and whose operator wants hydraulic height adjustment without a separate pump mount. The longer extension is the main fit consideration.

Full product details
BrandBob's Machine
Item Weight‎66 pounds
Item model number‎100-112112
Manufacturer‎Bob's Machine
Part Number‎100-112112
Model‎100-112112
Dimensions‎12.01 x 16.73 x 13.78 inches
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 12 in Jac Plate 100-112112, 12 in Setback Rated up to 300 HP

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T-H Marine Atlas 10-inch Plate

#9

9. T-H Marine Atlas 10-inch Plate

  • Dimensions: 20.5 x 18.2 x 11.8 in
  • Weight: 69 lb
  • Load Capacity: 625 lb
  • Material: Plastic

Best for: 10-inch Atlas setback.

Why it ranks #9: This Atlas plate provides a 10-inch setback and lists 625-pound capacity, but its listing gives less lift detail than several higher-ranked alternatives.

A 10-inch setback gives this T-H Marine Atlas plate a longer specified extension for transom layouts that call for it. The hydraulic plate is listed with a 625-pound load capacity and quick, simple installation, making it a high-capacity option for a 115 hp outboard.

The 10-inch setback is the defining fit dimension, so it belongs on a boat whose layout benefits from that extension rather than a more compact plate. Its 625-pound load capacity provides a stated weight limit to consider alongside the outboard and rigging. T-H Marine describes installation as quick and simple, a useful consideration when planning the setup. The listing identifies a hydraulic Atlas plate but does not specify vertical travel or a horsepower maximum, so those remain selection boundaries.

Pros
  • 10-inch setback for a longer extension.
  • 625-pound listed load capacity.
  • Hydraulic jack plate operation.
  • Installation described as quick and simple.
Cons
  • The listing does not specify vertical travel.

Skip it if you need a stated lift range before choosing; Bob’s Machine 100-111000 specifies 7.5 inches of total lift and a 10-inch setback.

This may suit a 115 hp boat needing a 10-inch setback and a plate with a stated 625-pound capacity. The listing does not give vertical travel or a horsepower ceiling, so those details are boundaries.

Full product details
BrandT-H Marine
ColorBlack
Compatible with Vehicle TypeBoat
Included ComponentsT-H Marine Atlas AHJ-10V-B-DP Hydraulic Jack Plate – Black, 10"
Item Dimensions20.5 x 18.2 x 11.8 inches
Item Weight69 pounds
Load Capacity625 Pound
ManufacturerAtlas
Part NumberAHJ-10V-B-DP
Manufacturer Warranty DescriptionWarranty
MaterialPlastic
Model NumberAHJ-10V-B-DP
Style NameClassic
Additional InformationImportant information

Listed on Amazon as: T-H Marine Atlas AHJ-10V-B-DP Hydraulic Jack Plate – Black, 10"

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Winibo 8-inch 350 hp Plate

#10

10. Winibo 8-inch 350 hp Plate

  • Load Capacity: 625 lb
  • Material: Aluminum, Stainless Steel

Best for: High-capacity electric adjustment.

Why it ranks #10: Its 8-inch setback and 7.5 inches of lift are specified, but its 350 hp rating is a less targeted match than models listed for 150 hp.

A 350 hp rating gives this Winibo electric hydraulic plate substantial capacity headroom for a 115 hp outboard, and one-touch control operates its 7.5 inches of total vertical lift. Its aluminum and stainless-steel materials are paired with electrophoresis coating and anodic protection.

The listed lift combines 1.5 inches of built-in height with 6 inches of adjustable travel, letting the operator change motor position through a defined 7.5-inch range. One-touch operation makes raising or lowering the plate a button-controlled task. A 625-pound load capacity accompanies the 350 hp rating, while the coating and anodic protection are specified for corrosion resistance in harsh saltwater environments. The 8-inch setback is an important dimension for transom planning.

Pros
  • One-touch control raises or lowers the motor.
  • 7.5 inches of total vertical lift.
  • Rated for outboards up to 350 hp and 625 pounds.
  • Electrophoresis coating and anodic protection support corrosion resistance.
Cons
  • The 8-inch setback may not suit transoms requiring a shorter plate extension.

Skip it if you need a setback under 8 inches; Bob’s Machine 100-106010 specifies a 6-inch setback for a more compact extension.

This suits a 115 hp owner seeking electric one-touch adjustment, substantial capacity headroom, and stated corrosion protection. Check the 8-inch setback against the boat’s transom layout before selecting this plate.

Full product details
BrandWinibo
Compatible with Vehicle TypeOutboard Motor
Included ComponentsElectric Hydraulic Jack Plate
Load Capacity625 Pound
ManufacturerWinibo
Part NumberJPH3500
Manufacturer Warranty Description1 year warranty
MaterialAluminum, Stainless Steel
Model NumberJPH3500
Style NameElectric Hydraulic Jack Plate

Listed on Amazon as: 8" Electric Hydraulic Jack Plate for Outboard Motor up to 350HP

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Avoid treating horsepower as a fit guarantee

A horsepower rating alone cannot confirm that a jack plate will fit your boat, motor, or transom. The products here span 4-, 6-, 8-, 10-, and 12-inch setbacks, so choosing a plate solely because its rating includes 115 hp can leave you with an unsuitable mounting geometry. The RisWhiteMeteors model explicitly covers 10–150 hp, while several other options are rated up to 300 hp; neither fact tells you the boat’s allowable setback or the motor’s mounting pattern.

Check the boat and engine manufacturers’ requirements, transom condition, mounting-hole layout, and available clearance before purchase. Also distinguish stated vertical travel from total lift: some Bob’s Machine listings describe 1.5 inches of built-in lift plus 6 inches of adjustable travel, totaling 7.5 inches.

That figure is not interchangeable with a product listing that simply states 6.7 inches of vertical adjustment.

Plan for hydraulic operation and release

A hydraulic plate’s operating and emergency arrangements matter as much as its lift figure. The RisWhiteMeteors listing specifically names a manual release valve, while several Bob’s Machine Action Series plates describe an internally mounted pump that eliminates a separate pump mount. The Bob’s Machine Standard Plate instead lists a remote-mount pump and includes wiring, hoses, a control switch, and oil.

These are meaningful differences for rigging space and installation planning, but the product data does not establish wiring compatibility, installation time, or how a release procedure works. Before buying, verify what controls and hydraulic components are included with the exact listing and whether your boat’s electrical and rigging setup can accommodate them.

A plate with more travel is not automatically the better choice if its installation arrangement does not match your boat.

How to Choose a Hydraulic Jack Plate

Horsepower and motor weight

Look for a stated horsepower range that includes your outboard, then verify the motor’s weight against any listed load limit. The RisWhiteMeteors plate is specified for 10–150 hp, and the Winibo 8-inch 150 hp plate is listed for motors up to 150 hp. Other models commonly state a maximum of 300 hp; the Winibo 350 hp model goes higher.

Bob’s Machine and Atlas listings include 625-pound limits, while the RisWhiteMeteors listing does not provide a load figure in the supplied specifications. A 150 hp-rated option is the closer stated match for a 115 hp motor; a higher-rated plate may be relevant when its setback or other documented features suit the boat, but do not infer weight compatibility from horsepower alone.

Setback and transom geometry

Choose a setback that matches your boat’s mounting requirements rather than assuming more is better. These listings range from the T-H Marine Atlas 4-inch plate to Bob’s Machine’s 12-inch plate, with 6-, 8-, and 10-inch choices between them. The RisWhiteMeteors plate has a 6-inch setback, while the Winibo 150 hp option has an 8-inch setback.

Shorter setbacks may be preferable when the boat’s design or clearance calls for less extension; longer ones may be considered only when supported by the boat and motor requirements. The product data does not specify which setback is correct for any particular hull.

Check manufacturer guidance, transom structure, available clearance, and mounting layout before choosing.

Lift and pump arrangement

Compare the stated lift and the hydraulic equipment included or built into the plate. RisWhiteMeteors lists 6.7 inches of vertical travel, and the Winibo 150 hp model lists 6.69 inches of stepless lift. Several Bob’s Machine Action Series listings describe 1.5 inches of built-in lift plus 6 inches of adjustable travel, for 7.5 inches total, with an integrated pump.

Bob’s Machine’s Standard Plate lists 7.5 inches of lift and includes a pump, harness, hoses, switch, and oil, while describing a remote-mount pump. Buyers who want a direct 150 hp rating can favor the first group; those prioritizing the specified 7.5-inch lift or included rigging components may consider the Bob’s Machine options, after confirming installation fit.

Which Jack Plate Should You Choose for a 115 hp Outboard?

Choose the RisWhiteMeteors 6-inch Plate if you want the clearest horsepower match: its listed 10–150 hp range includes a 115 hp outboard, and it provides 6.7 inches of travel. If an 8-inch setback suits your boat and you want a second model rated up to 150 hp, consider the Winibo 8-inch 150 hp Plate, which lists 6.69 inches of stepless lift. For a shorter setback and an integrated pump, the Bob’s Machine 6-inch Action Plate is a 300 hp-rated alternative with 7.5 inches of total lift.

If included components are a priority, the Bob’s Machine 6-inch Standard Plate lists a pump, wiring harness, hoses, switch, and oil. Confirm transom capacity, mounting fit, and setback requirements before selecting any option.

Frequently Asked Questions

How do I determine the correct setback for my boat and outboard?

Start by checking your boat and outboard manufacturers’ guidance, then compare the plate’s listed setback with your transom layout and available clearance. The products here list setbacks from 4 to 12 inches, so do not assume a longer or shorter option will fit. Confirm mounting and steering or rigging clearance before choosing.

Will a jack plate rated for more horsepower work safely with my 115 hp motor?

A higher maximum horsepower rating alone does not confirm compatibility. Check that the plate’s stated range includes 115 hp, then verify its mounting fit and your boat’s transom capacity. The 6-inch electric model lists a 10–150 hp range; other products list maximum ratings, which may not state a lower limit.

What should I check about transom strength and installation before fitting a hydraulic jack plate?

Confirm that the transom can support the plate and outboard, and check the manufacturer’s mounting requirements for your boat. Verify hole alignment, available clearance, and any steering or rigging constraints before installation. If you are unsure about the transom or fit, consult the boat manufacturer or a qualified marine installer.

How much vertical travel should I look for?

Choose travel based on the adjustment your setup requires, rather than treating more travel as automatically better. The listed options include 6.7 inches of vertical travel on the 6-inch electric plate, 6.69 inches of stepless lift on the Winibo 8-inch plate, and 7.5 inches of lift on the Action plate. Confirm suitability for your boat.

What included components or features are worth comparing?

Compare the listed features against your installation needs. The 6-inch electric plate specifies a manual release valve, while the Bob’s Machine 6-inch Standard Plate lists a pump, wiring harness, hoses, switch, and oil. Confirm which components are included with the exact product you plan to order.

Final Words

For the clearest horsepower match, start with the RisWhiteMeteors 6-inch electric plate: its stated 10–150 hp range includes a 115 hp motor, and it lists 6.7 inches of vertical travel. Consider the Winibo 8-inch plate if its longer setback suits your boat. The Bob’s Machine 6-inch Action Plate is another shorter-setback alternative.

Before ordering, confirm transom capacity, mounting fit, setback, and installation requirements.

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