Best Jack Plate For 40 Hp Outboard: Compare 10 Options

#1 · Best Overall

1. WFLNHB JPL4500

• Material: Aluminum
• Material Type: Aluminum
• Dimensions: 17.32 x 17.32 x 6.69 in
• Load Capacity: 1E+3 lb

Best for: Long-shaft transom conversion.

Why it ranks #1: Its stated 40–225 hp range includes a 40 hp motor, with 6-inch setback, 4 inches of vertical travel and listed mounting-hole dimensions.

Six inches of setback paired with four inches of adjustable vertical lift gives the WFLNHB JPL4500 useful positioning range for adapting a long-shaft outboard to a short-shaft transom. Its stated 40–225 hp compatibility also covers a broad range of motors, including a 40 hp setup.

The aluminum plate provides 6 inches of rear offset and 4 inches of vertical travel, so owners can position the engine aft and adjust its height rather than rely on a fixed mount. WFLNHB also lists a 1.5-inch engine-side mounting raise, contributing to a maximum total raise of 5.5 inches. Pre-drilled dimensions are provided for mounting, and the listing says common tools are sufficient for installation. Check the hole layout against your transom and motor before fitting.

Skip it if you need powered height changes at the helm; the listed adjustment is manual, while ECOTRIC ET-607-Z1 also uses manual adjustment.

For a 40 hp owner adapting a long-shaft motor to a short transom, this plate offers substantial setback and adjustable lift. Its manual operation and mounting-hole layout remain important considerations before installation.

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

#2 · Best 40–150 HP Fit

2. KUAFU 6-Inch Jack Plate

• Material: Aluminum
• Material Type: Aluminum
• Load Capacity: 150 lb

Best for: V-pattern motor compatibility.

Why it ranks #2: The 40–150 hp compatibility range closely suits this search, and its 6-inch setback shifts the engine aft; verify the engine’s bolt pattern.

Compatibility with 40–150 hp outboards and standard V-4 and V-6 bolt patterns is the KUAFU plate’s clearest fit advantage. Its 6-inch setback shifts the engine aft, an arrangement the listing says can put the propeller in cleaner water and reduce stern-generated turbulence and air bubbles.

The 6-inch setback moves the whole engine aft, which the supplied description connects with cleaner propeller water and reduced turbulence from the stern. The listing also says the added leverage can help raise the boat’s front. Compatibility is stated for 40–150 hp motors and standard V-4 and V-6 bolt-pattern engines, making engine specifications central to the fit decision. Confirm the particular motor’s pattern and horsepower range before installation; the supplied information does not specify vertical travel.

Skip it if you require a stated height-adjustment range; WFLNHB JPL4500 specifies 4 inches of vertical travel.

This KUAFU plate suits a 40 hp owner whose motor falls within its stated range and standard V-4 or V-6 pattern. It is less suitable when a defined vertical lift range is essential to the setup.

Listed on Amazon as: KUAFU 6" Setback Jack Plate Compatible with 40-150 HP Outboard Motors

#3 · Best Lift Range

3. GXYWADY JPL4500

• Material: Aluminum
• Material Type: Aluminum
• Dimensions: 17.32 x 17.32 x 6.69 in
• Load Capacity: 1 lb

Best for: Bolt-adjusted JPL4500 setup.

Why it ranks #3: It covers 40–225 hp and provides 6-inch setback with 4 inches of adjustable lift; the engine-side holes sit 1.5 inches higher.

A single steel bolt adjusts this GXYWADY JPL4500, providing a direct manual way to change engine height. The plate is listed for boats with 40–225 hp motors and combines 4 inches of vertical lift with an engine-side mounting position 1.5 inches higher than the transom side.

The 4-inch adjustable lift gives the owner a way to set motor height, while the 1.5-inch difference between engine-side and transom-side holes contributes to a stated maximum raise of 5.5 inches. Its 6-inch setback and JPL4500 replacement designation identify the mounting style and intended use. Pre-drilled holes accept 1/2-inch stainless hardware, and the listed 8-inch vertical distance between top and bottom mounting holes helps when comparing the plate with the existing installation.

Skip it if you want powered adjustment while underway; ECOTRIC ET-607-Z1 is also manual, so it will not solve that requirement.

For a 40 hp boat needing a JPL4500-style plate and manual height setting, this model supplies documented lift and mounting dimensions. Compare its hole spacing with the transom and motor before beginning installation.

Listed on Amazon as: GXYWADY 6inch Setback Adjustable Outboard Boat Jack Plate JPL4500

#4 · Best Hole Details

4. RisWhiteMeteors 4-Inch Plate

• Dimensions: 17.72"D x 5.51"W x 16.14"H

Best for: Measured-hole 4-inch setup.

Why it ranks #4: Its stated range reaches 225 hp and it gives 4 inches each of setback and vertical travel, plus explicit hole spacing and 1/2-inch hardware.

Published center-to-center hole measurements give the RisWhiteMeteors SYGJ001 a useful fit-check advantage: 12 7/8 inches across the top, 9 7/8 inches across the bottom, and 8 inches vertically. It also offers 4 inches each of setback and vertical travel for motors up to 225 hp.

The manual plate adjusts by turning one bolt, letting the owner set engine height through 4 inches of vertical travel; its separate 4-inch setback moves the motor aft. Pre-drilled holes accept 1/2-inch hardware, and the listed top, bottom, and vertical center-to-center measurements allow comparison with the existing mounting layout. Aluminum construction is described as resisting corrosion and deformation, while bronze and brass hardware helps prevent binding. Its stated 225 hp ceiling includes a 40 hp motor.

Skip it if you want a fixed offset without moving parts; ElaraBerry YOL-ElaraBerry-0633 is listed as a fixed 4-inch-setback plate.

This plate suits a 40 hp owner who wants both 4-inch setback and height adjustment with mounting measurements available for comparison. Its one-bolt manual operation and actual hole alignment remain fit considerations.

Listed on Amazon as: 4-Inch Manual Jack Plate for Outboard Motors up to 225 HP, Aluminum

#5 · Longest Setback

5. ECOTRIC 8-Inch Jack Plate

• Material: Aluminum
• Material Type: Aluminum
• Dimensions: 18.11 x 16.73 x 8.66 in
• Load Capacity: 225 lb

Best for: Eight-inch setback manual lift.

Why it ranks #5: Its 40–225 hp range includes the target motor and its 8-inch setback is the longest stated here; it weighs 32 pounds.

An 8-inch setback and compatibility with 40–225 hp engines make the ECOTRIC ET-607-Z1 a clear fit for a 40 hp buyer seeking rearward motor placement. Its manual adjustable plate is made from polished aircraft-quality aluminum and is listed at 32 pounds.

The 8-inch setback moves the motor aft, while the adjustable design lets the owner change its position to compensate for a long-shaft engine. ECOTRIC states a 40–225 hp range, so a 40 hp motor falls within the listed application. Bronze and brass hardware is described as helping eliminate binding, supporting smoother manual adjustment. The plate weighs 32 pounds, a practical consideration when handling it during installation, and the listing says hardware is included.

Skip it if you need height changes without manual adjustment; the ECOTRIC listing specifies a manual plate, not powered lift.

For a 40 hp owner wanting an 8-inch setback and adjustable manual plate, the ECOTRIC combines a broad stated horsepower range with binding-conscious hardware. Account for its 32-pound weight during installation.

Listed on Amazon as: ECOTRIC 8'' Jack Plate Adjustable Outboard Motor Boat Power-Lift Manual

#6

6. Weonefit 8-Inch Jack Plate

• Material: Aluminum
• Material Type: Aluminum

Best for: Eight-inch setback transom fit.

Why it ranks #6: This adjustable aluminum plate states 40–225 hp compatibility, 8-inch setback and 4 inches of vertical lift, though mounting-hole details are absent.

Eight inches of setback gives the Weonefit plate more rearward engine positioning than the listed 4-inch-lift setup, while its 4 inches of vertical lift supports height adjustment. It is stated as compatible with 40–225 hp engines and intended to adapt long-shaft motors to short-shaft transoms.

The 8-inch setback moves the motor aft, while 4 inches of vertical lift provides a separate height-setting range. Together, these dimensions give a 40 hp owner two positioning variables when adapting a long-shaft outboard to a short-shaft transom. The plate is aluminum, and the supplied description identifies it as a manual power-lift model. Verify the mounting arrangement for the specific boat and motor; the provided facts do not state a bolt-hole pattern or adjustment procedure.

Skip it if you need published bolt-hole measurements before selecting a mount; RisWhiteMeteors SYGJ001 lists its hole spacing.

This Weonefit plate suits a 40 hp owner seeking an 8-inch setback and manual height adjustment for a long-shaft-to-short-transom arrangement. Its listed dimensions help define the movement, but not the hole pattern.

Listed on Amazon as: 8" Adjustable Outboard Jack Plate – Manual Power-Lift Aluminum Boat Motor Plate Compatible with 40-225 HP Engines, Universal Steering System Mounting Weonefit

#7

7. Winibo JP5400C

• Material: Aluminum
• Material Type: Aluminum
• Dimensions: 15.5 x 4 x 15.2 in
• Load Capacity: 220 lb

Best for: Corrosion-conscious 4-inch lift.

Why it ranks #7: Its 4-inch adjustable travel suits height tuning and it uses 6061 aluminum, but the supplied information does not state a horsepower range.

6061 aerospace aluminum with T6 heat treatment distinguishes the Winibo JP5400C, whose listing connects that construction with corrosion resistance in harsh marine environments. Its 4-inch manual adjustment is aimed at setting a long-shaft engine on a short-shaft transom and operating in shallower water.

The top adjustment bolts provide a full 4 inches of height control, allowing the owner to set engine position manually rather than use a fixed-height plate. The stated long-shaft-to-short-shaft application connects that adjustability with shallow-water operation. Winibo identifies 6061 aerospace aluminum and T6 heat treatment as material and process choices for corrosion resistance. The supplied information does not name a horsepower range, so a 40 hp buyer should check whether the plate’s fitment details match the motor and boat.

Skip it if you need a published 40 hp compatibility range; WFLNHB JPL4500 explicitly lists 40–225 hp outboards.

For a 40 hp owner prioritizing manual 4-inch height setting and the stated corrosion-resistant aluminum treatment, the Winibo merits consideration. Its missing horsepower range makes confirming the exact fit especially important.

Listed on Amazon as: 4" Adjustable Outboard Motor Jack Plate (JP5400C)

#8

8. Pindex 4-Inch Jack Plate

• Dimensions: 5.12 x 16.54 x 16 in

Best for: Manual steering-system plate.

Why it ranks #8: The title states a 225 hp maximum and 4-inch adjustment, but the listing provides no setback or detailed fitment information for a 40 hp motor.

Manual operation and a 4-inch adjustment identify the Pindex plate as a straightforward height-setting option for an outboard steering system. Its title states a maximum of 225 horsepower, placing a 40 hp motor within that stated ceiling, although the supplied details do not explain its adjustment mechanism.

The product title identifies this as a manual jack plate for a boat steering system, and its stated 4-inch adjustment offers a defined amount of height movement. The 225 hp maximum in the title includes a 40 hp outboard. Pindex lists the plate as an included component and provides overall dimensions, but the supplied facts do not give setback, mounting-hole spacing, material, or a specific adjustment procedure. Those omissions make comparison with the boat’s existing mounting arrangement important.

Skip it if you need known setback and hole dimensions; RisWhiteMeteors SYGJ001 lists both setback and center-to-center mounting measurements.

This Pindex plate may suit a 40 hp owner seeking manual adjustment within the title’s 225 hp maximum. Buyers who need documented setback or mounting measurements should treat the missing details as a significant fit boundary.

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

#9

9. GELUOXI 4-Inch Plate

• Material: Alloy Steel, Aluminum
• Material Type: Alloy Steel, Aluminum

Best for: Manual transom-mounted adjustment.

Why it ranks #9: This manual aluminum plate is specified up to 225 hp and for transom mounting, but the available details do not state vertical travel or a 40 hp minimum.

A one-piece aluminum design with steel fasteners is the GELUOXI plate’s defining construction detail. Its 4-inch size, manual operation, and stated 225 hp maximum identify a transom-mounted option for positioning outboards, including a 40 hp motor, on boats using long-shaft engines with short-shaft transoms.

The listing specifies a 4-inch plate, manual operation, and transom mounting, giving the owner a basic framework for planning installation and engine positioning. Its stated application includes fitting long-shaft outboards to short-shaft transoms, and the 225 hp maximum includes a 40 hp motor. The one-piece aluminum body and steel fasteners describe the construction, but the supplied facts do not provide vertical travel or bolt-hole spacing. Compare the mount dimensions with the boat before committing to installation.

Skip it if you need exact mounting measurements before choosing; RisWhiteMeteors SYGJ001 publishes center-to-center hole spacing.

For a 40 hp owner looking for a manual, transom-mounted aluminum plate, GELUOXI states a broad horsepower ceiling and long-to-short-shaft application. Its unspecified hole spacing is a key installation constraint.

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

#10

10. ElaraBerry Fixed Plate

• Material: Aluminum
• Material Type: Aluminum
• Dimensions: 15.75 x 5.12 x 5.12 in

Best for: Fixed-position plate buyers.

Why it ranks #10: It is a fixed 4-inch setback plate with no stated horsepower range or adjustable vertical travel, leaving the least evidence of fit for this use.

A fixed 4-inch setback makes the ElaraBerry plate a simpler choice for buyers who want a set engine offset rather than a movable jack plate. Its aluminum construction is listed for boat use, and the description highlights intuitive mounting points and installation with basic tools.

Because this is a fixed jack plate, its 4-inch setback provides a set position rather than a height range that can be adjusted after installation. The supplied description says its mounting points and instructions support installation with basic tools, which can help both DIY boaters and mechanics plan the work. Aluminum construction is specified, but no compatible horsepower range, mounting-hole dimensions, or adjustable vertical travel is supplied. Check those fit details against a 40 hp motor and transom before choosing it.

Skip it if you need to change motor height after fitting; Winibo JP5400C offers 4 inches of manual adjustment.

This ElaraBerry plate fits a 40 hp owner who wants a fixed 4-inch setback and straightforward mounting points. It is not the choice for on-the-water or post-installation height changes, and horsepower fit is unspecified.

Listed on Amazon as: Fixed Jack Plate 4 Inch Setback Durable Aluminum Boat Jack Plate for Outboard Motor Height Adjustment Improved Performance and Control Corrosion Resistant and high Load-Bearing Capacity