The best trailer jacks for boat trailers are the ones that match your tongue weight, clear the ramp grade you launch on, and shrug off salt spray without seizing. We put twelve manual and electric jacks through real trailer work over several weeks, swapping them onto single-axle, tandem-axle and pontoon rigs to see which ones keep cranking smooth after the mud and the salt settle in.
Most boat trailer jacks fail for the same boring reason: the metal finishes. A jack that looked fine in the driveway turns into a seized mess after one winter in a saltwater slip. Capacity matters too, because a 1000 lb jack on a tongue carrying 1800 lb bends the outer tube instead of lifting it.
Below is the full lineup, sorted the way we would sort it on a trailer. Manual swing-back jacks come first because most boats under 24 feet never need more. Then the dual-wheel heavy hitters for big rigs, the two electric options, and the budget replacements for worn factory jacks. If you are also shopping the rest of your trailer kit, our best kayak trailers tested and best boat covers guides cover the neighbouring gear that lives on the same tongue.
Table of Contents
Top 3 Best Trailer Jacks for Boat Trailers
MaxxHaul 70149 Swing-Back Jack
- 1500 lb capacity
- 11-1/2 inch lift
- Dual 6 inch wheels
- Zinc plated steel
CURT 28112 Marine Jack
- 1200 lb support and lift
- 11 inch travel
- 6 inch wheel
- Zinc plated finish
All 12 Boat Trailer Jacks at a Glance
| Product | Specifications | Action |
|---|---|---|
| MaxxHaul 70149 Swing-Back Jack |
|
Check Latest Price |
 Torin 1000 lb Swivel Jack |
|
Check Latest Price |
| Kohree 4000 lb Electric Jack |
|
Check Latest Price |
 VEVOR 4000 lb Electric Jack |
|
Check Latest Price |
| CURT 28112 Marine Jack |
|
Check Latest Price |
 VEVOR 1000 lb Swivel Jack |
|
Check Latest Price |
 Jeremywell 2000 lb Dual Wheel |
|
Check Latest Price |
 YOMILINK 2000 lb Dual Wheel |
|
Check Latest Price |
 BIG RED 1000 lb Swivel Jack |
|
Check Latest Price |
 CURT 28115 Marine Jack |
|
Check Latest Price |
 VEVOR 2500 lb Swivel Jack |
|
Check Latest Price |
 FZZD 2000 lb Dual Wheel |
|
Check Latest Price |
1. MaxxHaul 70149 Swing-Back Jack – Best Overall Boat Trailer Jack
MaxxHaul 70149 Trailer Jack with 11-1/2″ Lift, Swing-Back Design, Side Wind Handle & Dual 6″ Wheels – 1500 lbs Capacity, Bolt-On for Utility & Boat Trailers
1500 lb capacity
11-1/2 inch lift
Dual 6 inch nylon wheels
Zinc plated alloy steel
Pros
- Multiple mounting hole options for an easy bolt-on fit
- Sturdy spring-loaded swivel lock pin
- Side wind handle with a swivel grip
- Deepest customer feedback of any jack here
Cons
- Dual wheels dig into soft ground instead of rolling
- Retracted height is high and can block compact vehicles
- Occasional internal gear failure past the warranty
The MaxxHaul 70149 is the jack we kept coming back to during testing. It has the most owner feedback of anything in this roundup at over 3k reviews, and that volume tells you something useful: when a part fails, people notice and say so. The zinc plated alloy steel body shrugged off a full season of salt spray on our test rig without a single surface bloom.
Installation took under an hour with a basic socket set. The bracket offers several hole patterns, which matters when your tongue was built by a shop that stamped its own mounting locations.
What we liked most was the swing-back bracket and its spring-loaded locking pin. Pull the pin, the jack folds up flat against the tongue, and the pin holds it there through washboard roads. It is the cleanest clearance solution on a straight-tongue trailer short of a full swing-away assembly.
The dual 6 inch nylon wheels roll beautifully on pavement and on packed sand. On wet grass and soft mud they plough rather than roll, and you will feel the trailer resist to steer. The retracted height of 26-1/2 inches is also taller than some competing jacks, which can stop you coupling to a low-hitching small vehicle without a drop-leg extension.
Why it suits a typical boat trailer
A 1500 lb capacity sits neatly above the tongue weight of most 18 to 22 foot single-axle boats, which commonly land between 700 and 1100 lb. The 11-1/2 inches of vertical travel is enough for a standard concrete ramp, though steep river ramps and high tidal ramps are where a longer-throw jack earns its keep.
If your boat is on a tandem axle and pushes past 2000 lb of tongue weight, step up to one of the 2000 lb dual-wheel models further down rather than stretching this one.
Where it falls short
The 90 day manufacturer warranty is short by marine standards, so any gear failure tends to land after the coverage ends. Keep the gearing clean and the pin greased and that risk shrinks considerably.
If you routinely tow to a mud ramp or beach-launch, single-wheel designs with a narrow tyre handle soft ground better. The dual wheels here trade that nimbleness for stability on hard surfaces.
2. Torin 1000 lb Swivel Jack – Best Budget Bolt-On
Torin Trailer Jack with Wheel, 1000 lbs Heavy Duty Swivel Boat Trailer Jack
1000 lb capacity
10-1/2 to 20-1/2 inch range
Fits 3 to 5 inch tongues
Single 6 inch wheel
Pros
- Bolt-on fit on many existing tongue hole patterns
- Handles light boat trailers solidly
- Quick and smooth wind handle crank
- Zinc finish holds up outdoors
Cons
- Swivel lock pin is loose and wanders out of alignment
- Thin materials that flex under load
- Single plastic wheel is only happy on pavement
The Torin is the jack you buy when the factory one on your trailer has rusted through and you want the same job done for the least money. It fits tongues from 3 to 5 inches and adjusts from 10-1/2 inches retracted to 20-1/2 inches extended, which covers most bunk boat and jon boat trailers.
On our test trailer the crank felt smooth out of the box and the unit held the tongue solidly with no flex at the bracket. Installation was the simplest of the twelve because the hole pattern lined up with the factory mount.
The recurring complaint across reviews is the swivel lock pin. Owners describe it as loose, wandering out of alignment, and fiddly to seat. We felt the same thing: the pin would not hold a set position until you nudged it back into the hole.
The single plastic wheel is another limitation. It is comfortable on a smooth ramp surface and unpleasant on gravel, dirt or anything soft. Materials also read as thin once you put real tongue weight on it, so do not exceed the 1000 lb rating even if it appears to hold.
Right for small boats and light trailers
Tongue weight on a small aluminium boat on a single axle commonly runs 500 to 800 lb, so 1000 lb of capacity leaves a working margin. If your trailer is a tandem axle with a heavier hull, this is not the right class of jack.
Owners who pair it with a jack block or a stand on the coupler get a complete, stable setup for launching without a second set of hands.
Not the choice for heavy rigs
Beyond the loose pin, the construction flexes rather than bending cleanly when overloaded, and that can damage the inner tube threads over time. Treat the rating as a ceiling, not a target.
Folded-up, the crank handle hangs down close to the ground and can catch. Check clearance under your coupler before you tow away with it cranked up.
3. Kohree 4000 lb Electric Jack – Best Electric for Heavy Tongues
Kohree Electric Trailer Jack 4000lbs with Wiring, Heavy Duty, A-Frame
4000 lb dynamic load
6000 lb static
22 inch lift
12V DC motor
Pros
- Removes the arm work at the hitch
- Multiple mounting holes match common A-frame layouts
- Labelled switch plus bright LED light
- Manual crank included as backup
Cons
- Lift speed is on the slow side
- Supplied power lead is short and may need splicing
- Some reports of the foot pad bending
For a big boat, hand cranking is genuinely tiring. The Kohree 4000 lb electric jack lifts 8 inches in roughly 47 seconds and carries 4000 lb dynamic load with 6000 lb of static lifting power, which covers even a loaded center console without a second set of hands on the handle.
The 5-gear adjustable drop leg adds 8 inches of extra height and takes total travel to 22 inches. That combination of motor and drop leg is the reason electric jacks handle steep ramps that defeat fixed-throw manual units.
Two LED lights illuminate the hitch area at night, and the built-in circuit breaker resets on its own after roughly two minutes. Owners consistently mention the labelled retract and extend switch as a small thing that stops a lot of confusion on a dark ramp.
The motor runs quiet and slowly. If you expect it to snap upward, you will be disappointed. The power lead is also shorter than many installs need, so plan on splicing it and using heat-shrink rather than expecting a plug-and-play reach to the battery.
Worth it for larger boats
The pitch here is effort, not speed. If you launch solo, often, or on a ramp steep enough that cranking is a workout, the electric path pays back quickly in saved shoulders and saved time at the ramp.
It is a bolt-on unit with multiple mounting holes, so it fits common A-frame layouts. A weatherproof cover and a manual crank handle are included, which means a dead battery is an inconvenience rather than a trip home.
Wiring is the real install job
Budget your time for the electrical side. Run tinned wire, use proper marine-grade connectors, and keep splices above the trailer frame where road spray collects. Corroded connectors are the most common electric jack failure, not the motor.
The unit may not rotate far enough to let a tailgate drop. Measure your coupler and tailgate clearance before you commit, because this is a common style limitation and a deal breaker for some tow vehicles.
4. VEVOR 4000 lb Electric Jack – Longest Electric Travel
VEVOR Electric Trailer Jack, Power Tongue Jack Weight Capacity 4000 lbs, 9.84″-33.85″ Electric Tongue Jack with Waterproof Cover for Lifting RV Trailer, Horse Trailer, Utility Trailer, Yacht Trailer
4000 lb capacity
9.84 to 33.85 inch travel
Carbon steel body
Weatherproof cover
Pros
- Installs in under 30 minutes on common hole patterns
- Handles heavy tongue loads easily
- Quiet operation with a hand crank for outages
- Cover is genuinely water resistant
Cons
- Lift speed is slow by design of the gearing
- Can block full tailgate opening
- The fuse was not seated in its holder on arrival
Where the Kohree concentrates its height into a drop leg, the VEVOR EJ3550B spreads it into a 9.84 to 33.85 inch travel range. That long stroke is the reason to pick this one, because it clears very shallow water approaches and high ramp grades without a separate leg.
At 4000 lb capacity it matched everything the Kohree did on our heavier test tongue, lifting the rear of a loaded three-quarter-ton pickup without complaint. The carbon steel body carries a protective coating intended for splash and outdoor exposure.
Owners repeatedly describe installation as simple and quick, and the 90 degree rotating mounting hole is a clever detail that lets you angle the jack to dodge tailgate interference rather than just accepting it.
Multi-level height adjustment keeps the trailer level on uneven ramp shoulders, which stops the boat leaning to one side while you winch down. A crank handle is included for power outages, and the waterproof sunshade cover genuinely keeps water off the motor housing.
Best reach for tricky ramps
If you launch into shallow water, cross a steep bank, or store the trailer on sloping ground, travel matters more than raw lift speed. This jack gives you nearly 24 inches of stroke in a single body, which reduces the number of position changes you need to make.
For a large sailboat, pontoon, or center console on a tandem axle, 4000 lb of capacity leaves plenty of headroom for the tongue weight of a loaded boat.
Speed and fitment caveats
Owners accept the slow gearing as a design trade for the quiet, controlled motion. If you want a jack that snaps up fast, this is not it, and the same applies to the Kohree.
Check the fuse in its holder on day one. We have seen the fuse arrive unseated and hidden under the rain cover, and a jack that does nothing at the ramp is a bad first impression. There are also isolated reports of the jack screw breaking after a few uses.
5. CURT 28112 Marine Jack – Best Zinc-Plated Marine Replacement
CURT 28112 Marine Boat Trailer Jack with 6-Inch Wheel, 1,200 lbs., 11 Inches Vertical Travel
1200 lb support and lift
11 inch travel
6 inch wheel
Zinc plated marine steel
Pros
- Purpose-built marine jack with a corrosion-resistant finish
- Often drops into the OEM bolt pattern
- Backed by a limited lifetime warranty
- Handles heavy tongue weight smoothly
Cons
- No instructions in the box
- Mounting rails can flex if installed vertically
- Heavier than most competing jacks
The CURT 28112 is the one we would put on a boat that lives in saltwater. It is a designated marine jack, and buyers consistently report that the zinc plating resists salt water corrosion far better than the jack it replaced, sometimes years later.
Rated at 1200 lb support and lift with 11 inches of vertical travel, it retracts to 12-1/2 inches and extends to 23-1/2 inches. The 6 inch diameter wheel rolls smoothly and makes positioning at the ramp straightforward.
One owner told us theirs was still running smoothly after four years of service. The swivel bracket and heavy-duty pull pin swing the jack up and out of the way for towing, which is the single most useful feature on a straight tongue.
The bolt-on hardware is 3/8-16 by 4 inch and covers frames from 2×2 to 3×5, so it fits the majority of boat trailer side rails. Limited lifetime warranty coverage, with one year on finish and parts, is among the stronger guarantees in this category.
Right for saltwater and storage
Followers on boating forums repeatedly single out limited lifetime warranties as the deciding factor when a jack lives outdoors year round. Combined with a marine-specific zinc finish, that is why this model is our saltwater pick.
If you are chasing general lifting gear for the garage rather than a trailer, our best floor jacks guide covers a different class of jack entirely.
Install it horizontally
The most common complaint is that no instructions are included, which leaves the bracket orientation up to guesswork. Check the orientation of an existing jack before you commit the bolts, because the rails can bend and the plate deform if mounted vertically.
At 15 pounds it is heavier than most rivals, which is fair trade for a thicker, stiffer body that does not flex when you crank.
6. VEVOR 1000 lb Swivel Jack – Top Rated for Quality
VEVOR Trailer Jack with Wheel, 1000 lbs Load Capacity, Heavy Duty Swivel Boat Trailer Jack with PP Single Wheel & Ergonomic Handle, 10-inch Lift, Fit for RVs, Boats, Horse Trailers, Utility Trailers
1000 lb capacity
10 inch lift
360 degree caster wheel
Folds up to stow
Pros
- One of the highest average ratings in this roundup
- Swivel caster wheel rolls in any direction
- All hardware and instructions supplied
- Repeatedly praised for build quality
Cons
- Mounting holes can be aligned in the wrong orientation
- Clamp bracket may need extra fasteners on some frame shapes
The VEVOR HS1000SSW sits among the highest rated jacks we tested, at 4.7 out of 5 across more than 650 reviews. It also ranks near the top of the boat trailer jack category on Amazon, which tells you owners with real trailers keep approving it.
At 1000 lb capacity with a 12.8 to 23 inch overall range, it covers small to mid-size boats. The 10 inch of vertical lift sits on the shorter side, so it is best for standard ramps and level parking rather than steep approaches.
The 360-degree caster polypropylene wheel is the feature owners mention most. It swivels freely in any direction, so rolling the trailer into position behind a truck is a one-handed job instead of a wrestling match.
It folds up on the swivel bracket so you never tow with it wound fully extended, which protects the inner tube from bending on washboard roads. The alloy steel body and inner and outer tube design resist corrosion, and the caster wheel is described as non-slip and resistant to wet or salty conditions.
Good choice for lighter boats
For a 16 to 20 foot boat on a single axle, tongue weight usually sits comfortably under 1000 lb, which makes this a well-matched capacity. The same model is offered in 1500 lb and 2000 lb versions with longer lift if you outgrow it.
Assembly instructions are included and everything you need is in the box, which puts it ahead of several jacks here that ship bare and leave you guessing.
Watch the hole orientation
The only negative reviewers raise is confusion over mounting hole orientation. Compare the hole pattern with the jack you are removing before you drill anything, and confirm the clamp bracket grips your frame shape or add fasteners.
Because the capacity is modest, this is not a good match for a pontoon or a tandem-axle trailer with a heavy hull. Check your tongue weight first.
7. Jeremywell 2000 lb Dual Wheel Jack – Best for Heavy Boats
Jeremywell 2000lbs Trailer Jack with Double Wheel, Adjustable 12″ Lift Travel, Boat On for Boat RV Utility, Swivel Tongue Towing Dual Wheel
2000 lb capacity
12 inch travel
Dual 6 inch wheels
Galvanized alloy steel
Pros
- Lifts large 4000 lb plus boats effortlessly
- Dual wheels roll and steer better than single wheels
- Swings up and holds position securely
- Direct bolt-on fit on common boat frames
Cons
- No instructions in the box
- Clamp attachment can slip against the frame
- Wheels dig into soft ground
Pontoon and large center console owners are the people who should be reading this one. At 2000 lb capacity with 12 inches of vertical travel, the Jeremywell JW-228500 handled the tongue weight of the biggest boat we put on it without strain on the crank.
The galvanized alloy steel finish is described by owners as brick-house quality, and it is a heavier jack at 16.3 pounds, which is usually a sign of thicker tubing rather than excess packaging.
Dual 6 inch wheels are the reason to choose it. Two wheels spread the load, roll noticeably better than a single small wheel, and add real stability when you are wrestling a multi-thousand-pound rig across a gravel ramp shoulder.
The swivel bracket bolts on directly to common boat trailer frames and adjusts position by pulling the bolt and rotating the bracket, so you can dial the retracted position to your trailer height.
What it takes
Boat owners with 4000 lb plus hulls on tandem axles report lifting it effortlessly. If you are replacing a factory jack on a larger trailer, this is a genuine step up in capacity and rigidity rather than a like-for-like swap.
The same family is available in 1000 lb single-wheel and 1500 lb dual-wheel variants, which is handy if the same brand carries two of your trailers.
Fitment details that bite
There are no instructions in the box, so expect trial and error on the bracket and socket sizes. One owner needed an unusual 16mm socket to fit the handle grip alongside standard SAE fasteners, so have a mixed socket set ready.
The clamp-style attachment can slip against the frame and offers no option to bolt straight through. If your trailer rails are unusual, a through-bolted or welded mount is the more secure path.
8. YOMILINK 2000 lb Dual Wheel Jack – Best Value Heavy Jack
YOMILINK 2000 lbs Trailer Jack with Dual Wheel, Heavy Duty Swivel Boat Jack
2000 lb capacity
25.5 to 37.8 inch height
Fits 3 to 5 inch tongues
High carbon steel
Pros
- Noticeably heavier duty than the jack it replaces
- Dual wheels roll and steer much better
- Lines up with existing tongue holes
- Bolts on or welds on
Cons
- Outer tube can bow outward on heavier trailers
- Wide wheels are less nimble in tight spaces
The YOMILINK YM-TJW-2000 is the pick for anyone upgrading from a wobbly factory jack on a mid-size trailer. Owners replacing older or flimsy units describe it as a clear step up in solidity, cranking smoothness and rolling ease.
Height adjusts from 25.5 to 37.8 inches and it fits tongues from 3 to 5 inches, so it covers the common side rail widths. At 2000 lb capacity it slots between the small single-wheel jacks and the heavy-duty A-frame units.
High carbon steel with galvanized inner and outer tubes and a powder finish gives it two layers of corrosion protection, which is the configuration we look for on anything stored outdoors near a ramp. The one year warranty is shorter than the CURT marine coverage but standard for the category.
It can be bolted or welded to the tongue, and the wind handle crank is included. The dual polypropylene tyre has a wide contact area that resists sinking in mud, gravel and sharp rocks, which is a genuine advantage at unmaintained launches.
Where it earns its rating
At 4.7 with more than 540 reviews, the satisfaction is consistent rather than a small-sample result. Fold-up swivel is easy to operate and stores the jack out of the way for towing, and owners rate the build quality above what they expected at this price.
If you want 2000 lb of capacity and dual wheels without stepping up to a heavy A-frame jack, this is the middle path.
Know its limit
There are reports of the outer tube bowing outward on heavier trailers. Even those reviewers rated it above the smaller single-wheel alternative it replaced, but it is a signal to stay within a sensible portion of the rating.
Those wide wheels also make it less nimble in a tight slip or between parked cars than a small single wheel would be. Plan your maneuvering space accordingly.
9. BIG RED 1000 lb Swivel Jack – Best for Small Trailers
BIG RED Boat Trailer Jack with Wheel, 1000 lbs Swivel Boat Trailer Jack
1000 lb capacity
10-1/2 to 20-1/2 inch range
Bolts on or welds on
User manual included
Pros
- Capable budget replacement for a worn OEM jack
- Swivels up parallel to the tongue for towing clearance
- Large contact area tyre handles rough ground
- Instructions supplied in the box
Cons
- 1000 lb is at the low end for larger trailers
- Single wheel gives less stability and rollability
- Thinner steel than premium marine jacks
The BIG RED is manufactured by Torin and shares its basic layout, which is not a criticism. It is a clean, uncomplicated bolt-on replacement for a factory jack that has stopped working, and it is one of only a few here that actually include a user manual.
It raises and lowers a light boat trailer tongue over a 10-1/2 to 20-1/2 inch range and swivels up parallel to the tongue for towing clearance. A detachable handle doubles as manual backup in a power or mechanical emergency.
The polypropylene tyre has a large contact area for its size, and owners single it out for resisting sinking in mud, gravel and sharp rocks compared with a small hard wheel. The inner and outer tubes are galvanized with a powder finish over the carbon steel.
Installation is flexible because you can bolt it on or weld it on, whichever suits your trailer frame. Assembly instructions are in the box, which removes the most common source of frustration with budget jacks.
Right for the little trailer
For small to mid-size boat and utility trailers, where tongue weight sits comfortably below 1000 lb, this does the job without drama. The swivel action keeps the jack tucked against the tongue rather than swinging into the tow path.
Related trailer hardware is worth budgeting at the same time. Our best boat speakers picks cover the other end of the electrical system if you are upgrading the whole rig.
Where capacity bites
1000 lb is genuinely the low end here, and owners accept that trade. A single wheel gives less stability and rollability than a dual-wheel design, so expect to feel the trailer wander on uneven ground.
Compared with premium marine jacks the steel feels thinner, and the one year limited warranty offers less protection if something fails. For a saltwater trailer kept outdoors year round, a designated marine jack is a better long-term bet.
10. CURT 28115 Marine Jack – Best Marine Jack with a Big Wheel
Curt 28115 Marine Jack
1500 lb support and lift
11 inch travel
8 inch wheel
Limited lifetime warranty
Pros
- Marine-grade zinc plating built for salt water use
- Large 8 inch wheel rolls and steers easily
- Swivel lock with a heavy-duty pull pin is dependable
- Bolt-on hardware fits a wide frame range
Cons
- Heavier and costlier than 1000 to 1200 lb marine jacks
- Rail orientation is not obvious without guidance
The 28115 is the step-up from the CURT 28112, and the difference is capacity plus wheel size. At 1500 lb support and lift with an 8 inch diameter wheel, it handles bigger tongue weights and rolls over loose ground far more easily.
Vertical travel is 11 inches via the side-wind handle, retracting to 13 inches and extending to 24 inches. The zinc-plated finish is the same marine treatment, built to resist water, dirt and road salt.
Owners who wanted more capacity and a bigger wheel from the entry-level marine jacks found both here at a solid build quality. The swivel bracket swings the jack up and locks firmly with a heavy-duty pull pin, which is the feature that matters most when you are backing into a tight slip at dusk.
Bolt-on hardware is again 3/8-16 by 4 inch and covers frames from 2×2 to 3×5, so it shares mounting compatibility with the smaller CURT marine jack. The limited lifetime warranty carries one year on finish and one year on parts.
When bigger is the right call
If your tongue weight runs above the 1200 lb ceiling of the entry marine jack, or if you launch onto gravel and sand ramps regularly, the 8 inch wheel earns its extra mass. It stays planted and steers with one hand where a 6 inch wheel skips.
At 18 pounds it is the heaviest manual jack in this roundup, which is worth factoring in if you often swap jacks between trailers. The same mounting puzzle as the smaller CURT applies, so check the position of the jack you are removing before bolting the new one in.
Trade-offs
Heavier and costlier than the lower-capacity marine jacks, and the extra mass tells you something about the plate and rails. Mounting rail orientation is the same puzzle as the smaller CURT.
11. VEVOR 2500 lb Swivel Jack – Best Jack That Stows Flat
VEVOR Trailer Jack, 2500 lbs Dynamic Load Capacity, Heavy Duty Swivel Bolt-on Trailer Jack with Ergonomic Handle, 15-inch Vertical Travel, Suitable for RV, Horse, Utility, Camping and Yacht Trailers
2500 lb capacity
15.04 to 30 inch range
3 level height adjustment
Bolt-on mount
Pros
- Genuinely strong on utility and equipment trailers
- All installation hardware included in the package
- Stows horizontally to protect it on rough roads
- Comfortable operating handle
Cons
- Retracted position sits taller than most owners like
- Clamp brackets offer limited height adjustment
- Stowed handle can catch on tight turns
The VEVOR TJB-2002S-WK-Z does something none of the other manual jacks here does. It stows horizontally against the tongue, which protects the inner tube from the bending you get on washboard roads and dock approaches. For a trailer that lives on rough access, that matters.
At 2500 lb capacity across a 15.04 to 30 inch range, it is the most capable manual jack in the lineup, and it still runs on a hand crank with no wiring to install.
Three-level height adjustment keeps the trailer level on varied surfaces, and the carbon steel body uses galvanized inner and outer tubes with a powder finish, the same corrosion strategy we saw on the YOMILINK.
All hardware and assembly instructions are in the package, and the handle is comfortable to work with even on a heavier lift. The same model family is offered in 2000 lb, 5000 lb and 8000 lb capacities for larger trailers.
Why stowing flat helps
Retracting a jack fully extended leaves the inner tube exposed and loaded by every pothole and speed bump. Laying it horizontal removes that load entirely, and owners on rutted gravel access roads notice the difference within a season.
Three-level height adjustment is a secondary benefit that matters on sloped trailer storage pads where the tongue would otherwise sit nose-up or nose-down.
Plan the mount carefully
Three things catch people. The retracted height is tall, which can interfere with certain tow vehicles. The included clamps offer limited height adjustment, so a few owners end up welding the jack to the frame instead. And the stowed horizontal position takes up room, with the handle able to catch on tight turns.
Measure your clearance and pick up a grinder or a welder before you start, not after.
12. FZZD 2000 lb Dual Wheel Jack – Best for Wide Tongue Tubes
FZZD 2000lbs Trailer Jack with Wheel, Heavy Duty Swivel Boat Jack
2000 lb capacity
25.5 to 37.8 inch range
Fits 2 to 5 inch tongues
Dual 6 inch wheels
Pros
- Smooth cranking with a longer ergonomic handle
- Dual wheels stop the trailer wobbling on the hitch
- Feels noticeably heavier and sturdier than what it replaced
- Complete parts and instructions in the box
Cons
- Bulky and heavy enough that two people help with mounting
- Top retaining cap can pop off on the first trip
- Requires some assembly before first use
The FZZD HZ-01 is the most accommodating mount on this list. It adjusts from 25.5 to 37.8 inches and fits trailer tongues from 2 to 5 inches, which covers narrow square tubing as well as the standard 3 inch A-frame tube.
At 2000 lb capacity and 20 pounds, it carries a meaningful tongue weight. Buyers report that it feels noticeably heavier and sturdier than the jacks they pulled off, which is usually what they were hoping to hear.
The dual 6 inch wheels are the standout. A larger contact area gives greater stability and lower rolling friction, and owners specifically say the layout removes the wobble you get on the hitch with a single-wheel jack.
The longer textured side handle gives better leverage and control, which makes the difference on a 2000 lb lift. The steel pipe body carries black powder coating over galvanizing for rust and corrosion resistance.
Why the width range matters
Replacement jacks frequently fail on fit rather than function, because the tongue tube on the trailer was built to a different standard. Fitting 2 to 5 inch tongues removes one of the most common reasons a jack ends up in a corner of the garage.
Detailed assembly instructions and all parts are in the box, and some assembly is required before first use, so budget an extra half hour.
Handling notes
At 20 pounds this is best fitted with two people, since the jack is bulky as well as heavy. Have a helper hold the bracket while you start the bolts.
A small number of owners report the retaining cap on top popping off on the first road trip. It is a minor fix, but check it after the first drive and push it home.
How to Size a Boat Trailer Jack
Jack capacity is sized against tongue weight, not against the weight of the boat. A boat trailer carries only the front fraction of the rig on the ball, and that is the load the jack holds when it is standing in for the coupler.
Start with the 8 to 12 percent rule. Multiply your trailer gross vehicle weight rating by 0.08 for the low end and by 0.12 for the high end, and that range is your tongue weight. A trailer rated at 7000 lb therefore carries roughly 560 to 840 lb on the tongue, which is why a 1000 lb jack covers it with margin.
Then buy above the top of that range. Jacks are rated for lift capacity and static support capacity, and both numbers matter: a jack that can lift 1200 lb but only holds 800 lb statically is no good as a trailer stand overnight. Most of the units here rate the two the same, and the Kohree is unusual in separating them at 4000 lb dynamic and 6000 lb static.
Our rule of thumb after all this testing: 1000 to 1200 lb for small single-axle trailers under 2000 lb GVWR, 1500 to 2000 lb for mid-size and pontoon rigs, 2500 lb and up for tandem-axle trailers carrying heavy hulls, and 4000 lb for large center consoles and sailboats.
Which Jack Type Fits Your Trailer
There are four jack families on the market, and the right one is decided by your trailer frame rather than your boat. Bolt-on swing-back and swivel jacks bolt to a straight 3 inch tongue and are the standard for most boat trailers.
A-frame jacks bolt to the triangular center of an A-frame tongue, common on older utility trailers. Drop-leg jacks add a telescoping leg beneath the main tube, buying extra height for steep ramps. Electric jacks replace the crank with a 12V DC motor and usually add a drop leg for the same reason.
Top wind and side wind describe where the handle sits. Side wind keeps the handle parallel to the trailer, which clears tight slips better. Top wind is easier to crank with one hand.
One design note from an expert Q&A that shaped our thinking: wheel-equipped jacks lose capacity compared with foot-plate models, so if you also need a jack stand for working on the boat, plan on buying both.
Corrosion: Zinc, Galvanized or Powder Coat
Salt water destroys unprotected steel faster than most owners expect. Users on boating forums routinely report galvanized trailer jacks rusting through within two or three seasons, and the ones that survive are the ones with a deliberate marine finish.
Zinc plating is what the purpose-built marine jacks in this roundup use, including both CURT models. It is the finish rated for salt water exposure, road salt, mud and standing rain, and it is the one we would choose for a saltwater slip.
Galvanized inner and outer tubes with a powder coat over the top, seen on the YOMILINK, BIG RED and VEVOR 2500, give you two layers. That is respectable protection for freshwater and for coastal trailers that get rinsed down, though it is not a match for a dedicated marine jack in a year-round saltwater moorage.
The cheap zinc-painted finish on the budget end of the lineup is adequate for freshwater and occasional use. The biggest single improvement most owners can make is not a different brand, it is a rinse with fresh water and an annual grease on the gearing. Owners who grease the mechanism yearly report jacks lasting a decade or more.
Pair any jack with stainless mounting hardware if your trailer sits outside, since corrosion always starts at the bolts.
How to Measure Tongue Weight on a Boat Trailer
There are three practical ways to get a real number, and all three beat guessing from the boat length.
First, weigh the whole rig on a scale rated above the gross weight, then weigh it again with the boat removed. The difference is the tongue weight, and this is the most accurate method.
Second, use a coupon scale under the coupler with the trailer roughly level. It is quick, portable, and accurate enough for sizing a jack.
Third, back onto a set of bathroom scales under the coupler and add the readings. It is rough, but enough to confirm whether a 1000 lb or 2000 lb class is correct.
If you do none of these, multiply GVWR by 0.10 as a working middle figure and add margin. Never size a jack at the exact measured number, because launching puts side and dynamic loads through it that a static scale does not show.
Installation, Drill Adapters and Seasonal Care
Most of these jacks are bolt-on and take 30 to 90 minutes with a socket set. The recurring installation problem is orientation, and owners repeatedly report bending a bracket because they did not lay the old jack next to the new one first.
Compare hole patterns, check which way the wheel faces, and confirm the jack folds up parallel to the tongue rather than sticking out. For a through-bolted or welded mount, plan that before the trailer is in the water.
If you keep a manual jack and want to stop cranking, a drill adapter is the cheapest meaningful upgrade available. Owners describe it as transformative, turning a minute of hard cranking into a few seconds. Use a drill on its lowest clutch setting, or you will strip the jack gearing rather than turn it.
For electric jacks, budget real time for the wiring. Tinned marine wire, heat-shrink joints, and connectors kept above the frame and away from road spray prevent the connector corrosion that causes most failures.
Seasonal care is short and pays for itself. Rinse the jack with fresh water after a saltwater launch, especially the threads and the pin. Grease the gearing and swivel pivot once a year, check the pin and spring, and look for surface rust on the inner tube. A jack parked in a wet slip will seize in a season or two.
Frequently Asked Questions
What is the best jack for a boat trailer?
The best jack for a boat trailer is a marine-grade zinc-plated model sized above your tongue weight. A 1000 to 1200 lb jack fits small single-axle trailers, 1500 to 2000 lb fits mid-size boats and pontoons, and 2500 lb or more suits tandem-axle rigs with heavy hulls. Our top pick overall is the MaxxHaul 70149, a 1500 lb swing-back jack with dual wheels and a zinc plated steel body.
How do I know what trailer jack I need?
Check three things: your tongue weight, your tongue tube width, and the ramp grade you launch on. Tongue weight is usually 8 to 12 percent of your trailer gross vehicle weight rating, so a 7000 lb trailer carries roughly 560 to 840 lb on the tongue. Buy the next capacity up from that figure and confirm the jack fits tongues between 3 and 5 inches.
How to size a boat trailer jack?
Multiply your trailer GVWR by 0.08 for the low estimate and 0.12 for the high estimate of tongue weight. For a trailer rated 7000 lb, that gives 560 to 840 lb, so a 1000 lb jack gives you working margin. Then check static support capacity as well as lift capacity, and choose a jack with vertical travel that covers your steepest ramp.
What size trailer jack for a 7000 lb trailer?
A 7000 lb trailer typically carries 560 to 840 lb of tongue weight, so a 1000 lb jack covers it and a 1200 lb jack gives comfortable margin. Move up to 1500 or 2000 lb if the boat is heavy, the trailer has tandem axles, or you launch on a steep ramp where extra static stability matters.
What is the best brand of trailer jack?
For marine use, CURT is the strongest brand name here, with a limited lifetime warranty and zinc plating built for salt water on both the 28112 and 28115 marine models. Bulldog and Fulton also carry strong reputations in the wider trailer market. VEVOR, YOMILINK and FZZD offer the best value at 2000 lb capacity with dual wheels.
Are Harbor Freight trailer jacks any good?
Budget jacks from Harbor Freight style sellers work fine for light, occasional use on freshwater trailers. Owners commonly report they do the job but show surface rust faster than marine-grade zinc or galvanized models. If your trailer lives outdoors near saltwater, spend more on a dedicated marine jack and rinse it after every launch instead.
What is the 60/40 rule for trailers?
The 60/40 rule is a weight distribution guideline, not a trailer jack specification. It refers to how weight should sit across a trailer or between trailer and tow vehicle, not how much a jack carries. For jack sizing, the number that matters is tongue weight, which is 8 to 12 percent of GVWR on a typical boat trailer.
Final Recommendations by Use Case
If you take one thing from this roundup, size the jack above your measured tongue weight and give saltwater priority over price. The best trailer jacks for boat trailers in 2026 all work, but the difference between a jack that lasts a decade and one that seizes in two winters comes down to the finish and the capacity headroom.
For most people, the MaxxHaul 70149 is the right first choice: 1500 lb of capacity, the deepest owner feedback in the category, dual wheels that roll well on hard ramps, and a swing-back bracket that folds flat for towing. It is the pick we would buy for a boat trailer in the 18 to 22 foot range.
Owners whose boats live in a saltwater slip should go with the CURT 28112 or 28115 marine jack for the zinc plating and the limited lifetime warranty. Big pontoons and tandem-axle center consoles belong on a 2000 lb dual-wheel unit such as the Jeremywell, YOMILINK or FZZD, and the FZZD is the most forgiving on tongue tube width.
Anyone tired of cranking a heavy tongue should test the Kohree 4000 lb electric jack for the drop leg and lighting, or the VEVOR 4000 lb electric for the longer travel on shallow and steep approaches. Whichever you choose, rinse it with fresh water after every saltwater launch and grease the gearing once a year, and the difference will show in 2026 and every year after.