Best Jack Plate For 40 Hp Outboard

#1 · Best Overall

1. WFLNHB JPL4500

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

Best for: 40–225 HP adjustable-lift setup.

Why it ranks #1: Its stated 40–225 hp range includes 40 hp, with 6 inches of setback, 4 inches of adjustable lift, and listed pre-drilled hole dimensions.

Six inches of setback paired with four inches of vertical travel gives the WFLNHB JPL4500 room to reposition a compatible outboard. Its listed 40–225 hp range includes 40 hp, while the long-shaft-to-short-shaft-transom application makes it a candidate for that specific transom arrangement.

The four-inch adjustable lift provides height adjustment, and the engine-side mounting reference sits 1.5 inches higher than the transom-side reference, for a stated maximum total raise of 5.5 inches. That movement gives the installer more positioning options than a fixed plate. The aluminum construction and pre-drilled mounting holes support a conventional bolted installation; WFLNHB lists common tools for installation. Its six-inch rear offset is a substantial part of the package, so account for that added setback when planning the motor position.

Skip it if you need a shorter rear offset; the KUAFU 4-inch Set Back Jack Plate provides four inches instead.

Choose this WFLNHB for a 40 hp outboard when you need adjustable height and six inches of setback, especially for a long-shaft engine on a short-shaft transom. Check the listed hole layout against your mounting arrangement.

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

#2 · 40–150 HP Fit

2. KUAFU 6-Inch Jack Plate

• Load Capacity: 150 lb
• Material: Aluminum

Best for: V-4 and V-6 bolt-pattern fit.

Why it ranks #2: The compatibility range explicitly starts at 40 hp, and the 6-inch setback suits buyers seeking more offset than the listed 4-inch models.

Compatibility with standard V-4 and V-6 bolt patterns sets the KUAFU six-inch plate apart for buyers matching an outboard’s mounting layout. Its stated 40–150 hp range includes 40 hp, and shifting the engine aft is intended to put the propeller in cleaner water behind the stern.

The six-inch setback moves the engine aft; KUAFU says this can reduce stern-generated turbulence and air bubbles around the propeller, supporting propulsion efficiency. The same aft positioning increases leverage to raise the boat’s front, according to the supplied feature description. Its 40–150 hp range covers a 40 hp motor, while the standard V-4 and V-6 bolt-pattern compatibility narrows the engine fit criteria. Verify those engine specifications against the plate before choosing this adjustable model.

Skip it if you need capacity above 150 hp; the WFLNHB JPL4500 is listed for outboards up to 225 hp.

This KUAFU suits a 40 hp buyer whose engine uses a compatible standard V-4 or V-6 bolt pattern and who wants six inches of setback. Its 150 hp ceiling makes it a poor match for larger motors.

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

#3 · Small-Engine Match

3. QNCKJZV TC-2507

• Dimensions: 17.72 x 16.34 x 4.53 in
• Load Capacity: 2.5E+2 kg
• Material: Aluminum

Best for: Lower-horsepower compact transom fit.

Why it ranks #3: Its maximum rating of 60 hp closely brackets a 40 hp motor, and the aluminum plate has a 4-inch setback for adapting shaft and transom heights.

A stated 60 hp maximum makes the QNCKJZV TC-2507 a narrower-capacity choice that still covers a 40 hp outboard. Its four-inch manual power-lift setback plate is specified for adapting long-shaft engines to short-shaft transoms, with aluminum alloy as its construction material.

The four-inch setback provides a defined rear extension, and manual operation avoids dependence on a powered adjustment system. The product’s long-shaft-to-short-shaft-transom application directly addresses a common reason to add a jack plate. QNCKJZV describes the aluminum alloy as durable and corrosion resistant for marine environments. The stated 60 hp ceiling is an important selection limit: it covers a 40 hp motor but leaves less capacity headroom than plates rated to 150 or 225 hp.

Skip it if you may move above 60 hp; the KUAFU 4-inch Set Back Jack Plate is listed for up to 225 hp.

Consider the TC-2507 for a 40 hp motor on a boat needing a four-inch manual plate to accommodate a long-shaft engine on a short-shaft transom. Its 60 hp ceiling is the decisive limit for future engine changes.

Listed on Amazon as: 4-Inch Manual Power Lift Setback Jack Plate for Up to 60 HP Outboard Boat Motors – Transom Mount TC-2507

#4 · Adjustable 6-Inch

4. GXYWADY JPL4500

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

Best for: Bolt-adjusted JPL4500 replacement.

Why it ranks #4: It lists 40–225 hp compatibility, 6-inch setback, 4-inch adjustable lift, and pre-drilled holes for 1/2-inch stainless hardware.

The GXYWADY JPL4500 adjusts by turning one steel bolt, giving the owner a direct manual way to change outboard height. Its six-inch setback and four-inch adjustable lift are paired with a stated 40–225 hp application, which includes a 40 hp engine.

GXYWADY lists a 1.5-inch higher engine-side mounting reference alongside four inches of vertical lift, yielding a stated maximum total raise of 5.5 inches. That combined figure clarifies the available positioning range for setup. The six-inch setback moves the motor aft, and the plate is described as a solution for long-shaft engines on short-shaft transoms. Pre-drilled holes take 1/2-inch stainless hardware, with eight inches between the top and bottom mounting holes, helping installers assess the mounting layout.

Skip it if you need a four-inch setback; the KUAFU 4-inch Set Back Jack Plate has a shorter rear offset.

Choose GXYWADY for a 40 hp motor when you want a manual JPL4500-style plate, six inches of setback, and a stated 5.5-inch maximum raise. The specified 1/2-inch hardware and hole spacing remain installation considerations.

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

#5

5. TJHSM JPL4500

• Material: Alloy Steel, Aluminum

Best for: JPL4500 lift range with 300 kg limit.

Why it ranks #5: Its stated 40–225 hp range includes the target engine, with 6 inches of setback and 5.5 inches of maximum total lift.

A stated 300 kg allowable engine weight accompanies the TJHSM JPL4500’s six-inch setback and four-inch vertical stroke, giving buyers clear positioning and weight figures to assess. Its 40–225 hp application includes 40 hp, and a steel-bolt adjustment provides manual lift changes.

The four-inch adjustable stroke combines with a 1.5-inch engine-side installation reference elevation for a stated maximum total raise of 5.5 inches. This gives the buyer a defined range for motor positioning, while the six-inch setback moves the outboard aft. TJHSM says adjustment is made by turning one steel bolt, keeping the process manual. The listed 300 kg allowable engine weight is a separate selection boundary; check the engine’s weight against it before choosing this plate.

Skip it if you prefer a four-inch setback; the KUAFU 4-inch Set Back Jack Plate has a shorter rear extension.

The TJHSM is suited to a 40 hp owner who wants a manual JPL4500-style plate with six inches of setback and a stated 5.5-inch maximum raise. Its 300 kg engine-weight limit remains a key fit boundary.

Listed on Amazon as: 6-inch JPL4500 Adjustable Jack Plate Outboard Motor

#6

6. KUAFU 4-Inch Jack Plate

• Dimensions: 17.72 x 16.54 x 5.12 in
• Load Capacity: 225 lb
• Material: Aluminum

Best for: Corrosion-conscious four-inch setup.

Why it ranks #6: The 225 hp maximum covers a 40 hp outboard, while its 4-inch setback, adjustable lift, and included instructions provide useful setup details.

The KUAFU plate combines four inches of setback with adjustment by turning one steel bolt, giving a 40 hp outboard a manually repositionable mounting option. Its stated 225 hp maximum includes this engine size, and its long-shaft-to-short-shaft-transom function addresses a specific fit need.

A one-piece aluminum-alloy body and stainless-steel fasteners are specified, with corrosion resistance and durability given as their purpose. That construction is relevant for a marine mounting assembly exposed to the elements. The four-inch setback keeps the motor closer to the transom than six-inch plates, while the steel-bolt adjustment allows manual height changes. Included instructions support the setup workflow. KUAFU lists a 225 hp maximum, but the supplied details do not state a vertical travel measurement.

Skip it if you require a documented vertical-lift measurement; the FQRANBO 4-inch Adjustable Jack Plate specifies four inches of movement.

This KUAFU fits a 40 hp buyer seeking a compact four-inch setback and manual adjustment for a long-shaft engine on a short-shaft transom. Its missing travel figure makes it less suitable when lift range is a deciding requirement.

Listed on Amazon as: KUAFU 4'' Set Back Jack Plate Manual Power Lift Transom Outboard Boat Motor

#7

7. FQRANBO 4-Inch Jack Plate

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

Best for: Four-inch manual adjustment.

Why it ranks #7: It supports outboards up to 225 hp and offers 4 inches of adjustable vertical movement, with pre-drilled hole spacing specified for fit checks.

Pre-drilled mounting holes with specified center-to-center spacing make the FQRANBO plate’s installation layout concrete before purchase. It offers four inches of adjustable vertical movement and four inches of setback, with compatibility stated for outboards up to 225 hp, including a 40 hp motor.

The four-inch vertical adjustment lets the installer reposition motor height, while the four-inch setback keeps the plate’s aft extension shorter than six- or eight-inch designs. The stated hole layout includes 12 7/8 inches between the upper holes, 9 7/8 inches between the lower holes, and eight inches vertically between top and bottom mounting holes. These dimensions support a more informed mounting check. Its pre-drilled holes are for 1/2-inch stainless hardware, which defines the specified hardware size.

Skip it if you want a stated 5.5-inch maximum raise; the WFLNHB JPL4500 lists four inches of lift plus a 1.5-inch reference rise.

FQRANBO is a practical candidate for a 40 hp outboard when a four-inch setback, adjustable lift, and defined hole spacing fit the installation. Its four-inch vertical movement is the key boundary for buyers seeking more lift.

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

#8

8. GELUOXI 4-Inch Jack Plate

• Material: Alloy Steel, Aluminum

Best for: Manual lift for short transoms.

Why it ranks #8: This manual aluminum plate lists a 225 hp maximum and transom mounting, but its supplied data does not state a minimum horsepower.

A one-piece aluminum-alloy body with steel fasteners gives the GELUOXI jack plate a straightforward manual setup for positioning an outboard. Its four-inch size and stated 225 hp maximum include a 40 hp motor, while the transom-mount application addresses long-shaft engines on short-shaft transoms.

Manual operation keeps height adjustment independent of a powered lifting system, and the product is explicitly described for mounting and adjusting outboards on boat transoms. Its four-inch setback offers a more compact rear extension than six-inch options, useful when that distance matters to the installation. The aluminum alloy and steel fasteners combine the plate body with metal mounting hardware. GELUOXI lists four-stroke engines and jon boats or similar small-to-mid-size boats among the application details, giving buyers useful boundaries to assess before installation.

Skip it if you need a stated vertical-lift figure; the WFLNHB JPL4500 lists four inches of adjustable lift.

Consider GELUOXI for a 40 hp four-stroke on a transom that needs a manual, four-inch-setback plate, particularly on a jon boat or similar craft. Its listed details do not specify vertical travel, so buyers needing that measurement should look elsewhere.

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

#9

9. Weonefit 8-Inch Jack Plate

• Material: Aluminum

Best for: Eight-inch setback for shallow water.

Why it ranks #9: Its stated 40–225 hp compatibility includes the target motor, but the 8-inch setback is larger than the 4- and 6-inch alternatives.

Eight inches of setback gives the Weonefit plate a longer aft extension, while its four inches of vertical lift let the operator reposition a compatible outboard. The listed 40–225 hp compatibility includes a 40 hp engine, and its long-shaft-to-short-shaft-transom application targets that conversion.

The four-inch lift supplies vertical adjustment, while the eight-inch setback changes how far the motor sits behind the transom; together, these dimensions provide distinct positioning choices. Weonefit describes the plate as supporting shallow-water navigation and fuel efficiency, but those outcomes depend on the boat and setup. Its polished high-strength aluminum is described as corrosion resistant, a relevant material attribute for marine use. At 32 pounds, the listed weight is worth considering during handling and transom installation.

Skip it if you want a shorter aft extension; the GELUOXI Adjustable 4-inch Set Back Jack Plate has a four-inch size.

Pick Weonefit for a 40 hp setup where the eight-inch setback and four-inch lift suit the boat’s positioning needs, including a long-shaft motor on a short-shaft transom. The extended aft reach and 32-pound weight deserve consideration.

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

#10

10. Camoo JP-4FA-DP

• Dimensions: 15 x 4.1 x 4 in
• Load Capacity: 150 HP
• Material: Aluminum

Best for: Fixed four-inch transom offset.

Why it ranks #10: The fixed 4-inch plate is rated for up to 150 hp, but its listing does not specify a 40 hp fit or adjustable lift.

A fixed four-inch setback is the defining choice of the Camoo JP-4FA-DP, avoiding an adjustable mechanism for buyers who want a set motor position. Its listed capacity reaches 150 hp and includes 40 hp, while its application covers long-shaft outboards mounted on shorter-shaft transoms.

The cast-aluminum construction supplies the plate body, and the fixed four-inch extension places the motor aft of the transom without offering variable setback. Camoo describes an enhanced vertical-lift function and says the plate extends four inches off the transom, but the supplied details do not give a specific adjustable travel measurement. Its broad compatibility listing names V6 outboards and major brands including Yamaha, Mercury, Johnson, and Evinrude. Treat the 150 hp ceiling as the motor-capacity boundary.

Skip it if you want manual height adjustment; the KUAFU 4-inch Set Back Jack Plate adjusts by turning a steel bolt.

The Camoo suits a 40 hp owner who wants a fixed four-inch setback and whose outboard falls within its 150 hp limit. Choose another plate if changing position after installation is a priority.

Listed on Amazon as: JP-4FA-DP Fixed Jack Plate 4'' Setback for Outboard Motors Up to 150HP