The best trailer jacks for heavy tongue weight are not the jacks with the biggest number on the box. They are the ones whose rated capacity clears your calculated tongue weight with room to spare, whose travel reaches your coupler height, and whose mount matches your A-frame. Heavy tongue weight starts somewhere around 1,000 pounds, well past what the light-duty jack on a small boat or utility trailer was built to move.
Most jack failures we read about come down to a sizing mistake. A trailer loaded near its GVWR can push a thousand pounds or more onto the coupler, and add another 300 to 500 pounds if you tow with a weight distribution hitch. Cranking a 2,000 lb manual jack under that load is where bent pins and seized screws come from.
We spent weeks comparing ten jacks across the capacity bands that heavy tongue weight actually calls for, from 4,500 lb electrics to 7,500 lb units and the manual workhorses that still make sense for people who hate wiring. This is the list we would buy from for a trailer that lives in the [10 to 15 percent tongue weight range](https://www.kazsushibistro.com/best-trailer-jacks/).
Table of Contents
Top 3 Picks for Best Trailer Jacks for Heavy Tongue Weight (October 2026)
Lippert 285318 Electric Jack
- 3500 lb lift capacity
- 18 inch stroke
- Four integrated LEDs
- Hand crank override
VEVOR 5000 lb A-Frame Jack
- 5000 lb capacity
- 15 inch vertical travel
- 3 level drop leg
- Galvanized tubes
All 10 Trailer Jacks Compared in 2026
| Product | Specifications | Action |
|---|---|---|
| Lippert 285318 Electric Tongue Jack |
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Check Latest Price |
| Husky HB4500 Brute Power Jack |
|
Check Latest Price |
| VEVOR 5000 lb A-Frame Trailer Jack |
|
Check Latest Price |
 VEVOR 7500 lb Electric Tongue Jack |
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Check Latest Price |
 Husky 82022 Super Brute Electric |
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Check Latest Price |
 POLESTAR 5000 lb Electric Jack |
|
Check Latest Price |
 KYX 7500 lb Electric Tongue Jack |
|
Check Latest Price |
 RAM EJ-3520-BBX Electric Jack |
|
Check Latest Price |
 LIBRA 3500 lb Electric Tongue Jack |
|
Check Latest Price |
 YOMILINK 5000 lb A-Frame Jack |
|
Check Latest Price |
1. Lippert 285318 Electric Tongue Jack, Heavy Load Rating in a Clean Package
Lippert 3,500 lb Electric Trailer Tongue Jack, RV Power Jack, Black 285318
Lift capacity: 3500 lb
Stroke: 18 inch
Power: 30 amp 12V motor
Weight: 28.6 lb
Pros
- Quiet helical-cut gears
- Four integrated LEDs for night hitching
- Head rotates 90 degrees for tailgate clearance
- Hand crank included in the box
Cons
- Stroke speed is slower than cranking by hand
- Shaft geometry can block an open tailgate
- Wiring connectors not included
The Lippert 285318 lifts 3500 lb on a 12V motor and extends 18 inches of stroke, from a 10-3/4 inch retracted height to 28-3/4 inches fully extended. That travel is what makes it work on a raised A-frame, where the coupler sits higher than a boat trailer tongue ever does.
We picked it first because the feedback volume behind it is enormous, and the complaints are consistent rather than scattered. Owners with heavy fifth-wheel tongues mention the quiet helical-cut gears most often, and several report outlasting the factory jack they replaced after a water intrusion failure.
The 30 amp draw is the number to plan your wiring around. It needs a real 12V feed with a properly sized inline fuse, not a trailer plug tap that shares a circuit with running lights. The four integrated LEDs do the job of lighting the coupler area, which matters more than people expect when you are connecting a heavy tongue in the dark.
Its main limitation is speed. A manual crank is faster for short lifts, and the motor takes noticeably longer on a full 18 inch stroke. Several owners also note the drive housing sits high enough on the vertical shaft to interfere with a lowered tailgate on certain trucks, so measure before you buy.
Does it clear a high hitch ball and a lowered tailgate?
It clears a high hitch ball easily thanks to the 18 inch stroke, and the swivel head rotates 90 degrees so it can sit parallel to the tongue once you are connected. The tailgate question is trailer-specific: the body of the jack is wide at the top, so check the gap between your coupler and the truck bed before ordering.
What happens when the motor quits mid-hitch?
A hand crank is included in the box and fits onto the top of the unit, which means a dead motor does not strand you at a boat ramp. Wiring connectors are not included, so plan on sourcing your own ring terminals and inline fuse holder.
2. Husky HB4500 Brute Power Jack, the One We Would Trust With a Weight Distribution Hitch
Husky HB4500 4500 lbs. Brute Power Jack, Hammer Gray Finish
Lift capacity: 4500 lb
Travel: 18 inch plus 6 inch leg
3 LED work lights
Weight: 30 lb
Pros
- Quiet planetary gear drive
- Low 25 amp draw is easier on trailer batteries
- Smart Stop cuts power before the hard stop
- Oval mounting holes fit existing patterns
Cons
- Extend and retract speed is slow
- LED work lights are dim
- Flat washers and battery eyelet not included
The Husky HB4500 carries a 4500 lb rating with 18 inches of travel and a 6 inch drop-down leg, and it pulls only 25 amps under load. That low draw is the reason it works so well for owners running a trailer battery or a small solar setup away from mains power.
Owners with weight distribution hitches single this jack out for the job because of the Smart Stop planetary gear timing system, which cuts power before the screw reaches its hard mechanical stop. Less shock at the end of the stroke means less wear on the gearbox over years of daily use.
It is quiet, and owners upgrading from an aging 3,500 lb unit describe the change as immediate. The manual crank backup sits behind a rubber plug with a brake-disengage lever, so a mechanical override is available without pulling the jack apart.
The oval mounting holes are a quiet hero. They let the jack fit over existing holes in place rather than forcing you to re-drill an A-frame, and on some trailers the whole unit can mount sideways for full tailgate clearance. It includes a wiring harness and control switch but not the bolts or battery eyelet connector.
Is the low amperage draw real enough for boondocking?
At 25 amps running, a full stroke on a lightly used trailer battery is manageable, and a small panel can keep up. It is still a motor that expects power, so carry the crank for campsites where you are dry camping far from a vehicle.
Will it fit the existing A-frame holes?
The oval holes stretch enough to cover most standard bolt spacings, and only three mounting holes limit your orientation choices. Measure the triangle on your tongue against the jack bracket before committing, especially if you want a sideways mount.
3. VEVOR 5000 lb A-Frame Trailer Jack, Heavy Capacity Without Wiring
VEVOR 5000 lbs A-Frame Trailer Jack, 15″ Vertical Travel, Adjustable Drop Leg, for Horse, Utility, Yacht Trailers
Lift capacity: 5000 lb
Lift range: 9.65 to 24.64 inch
Power: manual side crank
Weight: 5 kg
Pros
- Handles a fully loaded tongue with no battery needed
- Galvanized inner and outer tubes resist corrosion
- Bolts or welds to the tongue depending on the frame
- Swivels flat for maneuvering
Cons
- Cranking a loaded tongue takes real effort
- Basic finish compared with electric units
- Manual operation only
The VEVOR TJA-3000S lifts 5000 lb through a 15 inch stroke and a 9.65 to 24.64 inch range, with a 3-level drop leg that keeps the trailer level across a sloped site. For heavy tongue weight, that is more rated capacity than most of the electric jacks on this list.
Manual does not mean flimsy at this capacity. The inner and outer tubes are galvanized with a powder finish, the crank handle is detachable, and the whole jack swivels up parallel to the tongue when you are maneuvering. Owners who replaced a stiff original jack report smoother, more consistent cranking.
It bolts on or welds on, which matters if your tongue bracket is not a standard pattern. The instructions and all parts are in the box, and the mounting is either three bolts or a weld bead depending on how your frame is built.
The honest drawback is effort. A loaded tongue at 1,000 lb or more takes several crank cycles per inch, and doing that in the rain at a dark campsite is exactly the job people buy an electric jack to stop doing. If you tow light and rarely hitch in the dark, this is plenty.
Is a manual jack strong enough for a heavy tongue?
Yes, on capacity. The 5000 lb rating is a lifting rating for a hand-cranked screw jack, and the galvanized tubing holds up in daily use. What it will not do is save your arms, and that is the tradeoff you are making.
How does the 3-level drop leg help on uneven ground?
Each notch drops the foot another increment, so you can level the trailer on a campsite that slopes or a drive where the coupler sits high. Swivel the jack up parallel to the tongue and the leg becomes a parking foot instead.
4. VEVOR 7500 lb Electric Tongue Jack, Most Rated Headroom in the Group
VEVOR Electric Trailer Jack, 7500 lbs Capacity, Electric Power Tongue Jack with Waterproof Protective Cover & LED Light for Travel Trailer, Camper, RV, 9.84-33.85 in Lift, 12V DC with Wiring, Black
Rated capacity: 7500 lb
Lift range: 9.84 to 33.85 inch
Power: 12V DC with remote
Weight: 28.7 lb
Pros
- 7500 lb rating gives real headroom on a heavy tongue
- Wide 24 inch lift range plus a 5 position drop leg
- Handheld remote lets you lower onto the ball from a distance
- 90 degree clockable base clears a pickup tailgate
Cons
- Motor is slow under full load compared with premium brands
- Remote and cover add complexity over a basic rocker switch
The VEVOR HH7500 is rated to 7500 lb and travels from 9.84 to 33.85 inches, which is the widest lift range here. The 5-position drop leg adds another 6 inches, so it covers hitch ball heights from a low utility trailer up to a tall A-frame without a second jack.
Dual controls are the feature owners mention most: a rocker switch on the jack itself and a handheld remote. Being able to send the tongue down onto the ball while sitting in the truck cab is genuinely useful on a sloped driveway, and the 90 degree clockable base holes let the mount rotate for tailgate clearance without drilling.
Coated inner and outer tubes, a weather cover, an LED work light and a top crank for manual lift during a power loss make it a complete package. A two-year manufacturer warranty is also longer than most in this roundup.
Stroke speed under full load is the recurring criticism, and at 7500 lb rated capacity the motor is working hard. Buyers who need this much capacity are usually towing something that is heavy enough that the speed trade feels fair.
Is 7500 lb overkill for a 900 lb tongue weight?
Often, yes. If your calculated tongue weight sits under 1,500 lb, a 3500 to 4500 lb jack lifts it comfortably with more speed and a lower center of mass. The 7500 lb rating makes sense on a loaded gooseneck or a dump trailer with a high tongue weight.
Does the remote actually work at distance?
Owners use it to lower the coupler onto the ball and to level on uneven campsites. It pairs with the rocker switch, so the jack is still operable if the remote is lost, and a top crank covers a dead battery.
5. Husky 82022 Super Brute Electric Jack, Strength Plus a Wireless Remote
Husky Towing 82022 Super Brute Electric Trailer Tongue Jack, 5000 lb Capacity, 18 Inch Travel, with Remote and 3 LED Lights, Bright Silver
Lift capacity: 5000 lb
Travel: 18 inch plus 6 inch leg
Power: 12V DC wireless remote
Weight: 30.1 lb
Pros
- 5000 lb lifts noticeably more than a factory 3500 lb jack
- Ball screw drive is very quiet
- Three sided LED lighting lights the hitch area
- Alternate holes allow a sideways mount
Cons
- Switch and remote fob have failed for some owners within three years
- Highest price in this roundup
- Bolt pattern may not allow a 90 degree mount
The Husky Super Brute 82022 pairs a 5000 lb rating with 18 inches of travel and a 6 inch drop-down leg. The low-friction ball screw drive is the engineering story here: it cuts friction, motor strain, noise and heat compared with a conventional screw.
The wireless remote with a power alert warning system and a remote lockout is what owners use every time. Three-sided high-output LED lighting covers the ball and coupler from more than one angle, which is where the original light on most trailers falls short.
Alternate mounting holes give you the option of a sideways mount for tailgate clearance, though not every trailer tongue has the geometry for it. Husky customer service is reported as responsive when warranty issues come up, which matters more than the paper warranty length for a part mounted outside in the weather.
The weak spot is electronics longevity. Some owners report a dead rocker switch or a non-working remote fob after roughly three years of daily use. Husky covers it for a year and asks you to contact them within 30 days of receipt for issues.
Is the ball screw drive stronger under load than a plain screw?
It is quieter and cooler running, which is why owners notice it. The 5000 lb rating is what matters for heavy tongue weight, and that number is what the manufacturer publishes for it.
What should I check before buying an electric jack?
Check that your tongue hole spacing matches, that the travel covers your coupler height, and that the wiring plan includes a fused 12V feed and a solid ground. We keep a [jack comparison reference](https://www.kazsushibistro.com/best-trailer-jacks/) handy for exactly this.
6. POLESTAR 5000 lb Electric Tongue Jack, the One That Labels Static and Dynamic
POLESTAR Electric Trailer Jack, 5000lbs Electric Power A-Frame Tongue Jack
Dynamic: 5000 lb
Static: 7500 lb
Lift: 9 to 27 inch plus 4.5 inch leg
Weight: 21.7 lb
Pros
- Only jack here that publishes both dynamic and static ratings
- Ball screw with brake motor lifts smoothly and steadily
- Built-in circuit breaker trips and resets on over-amperage
- Fits the same bolt pattern as standard FIC electric jacks
Cons
- Fixed bolt pattern means a lowered tailgate can contact it
- Inline fuse is a non-standard type
- Confusing customer service contact information
The POLESTAR is rated 5000 lb dynamic and 7500 lb static, which is the one product here that tells you both numbers. For heavy tongue weight that distinction matters: the static figure is what the jack holds once it is stopped and supporting the tongue, and the dynamic figure is what it moves.
A ball screw paired with a brake motor gives smooth, controlled lifting, and the built-in circuit breaker trips on over-amperage then resets itself once the motor cools. That matters on a heavy tongue where a stall is more likely than it would be on a light boat trailer.
Owners upgrading from a failing OEM jack report a direct drop-in fit with the same bolt spacing and wiring, plus noticeably quieter lifting. The lift range runs from 9 inches retracted to 27 inches, and the 4.5 inch drop leg takes it to 31.5 inches. A waterproof rain cover and an emergency crank come in the box.
The fixed bolt pattern is the reason to measure carefully: on some trailers it cannot be mounted sideways, so a lowered tailgate has to clear it. The non-standard inline fuse is also worth knowing about before the first failure.
Why does the static rating matter more than the dynamic one?
Because the jack spends most of its connected life holding, not moving. When a 7,500 lb static rating sits above your tongue weight, you have margin for a hitch bar and a sloped site where more load lands on the leg.
Can it replace a factory 3500 lb jack without rewiring?
Owners say yes on both bolt pattern and wiring, which makes it a clean swap. Installation takes about 20 minutes for most people, and the 12V DC hard wiring matches standard trailer practice.
7. KYX 7500 lb Electric Tongue Jack, Capacity and a Remote for Leveling
KYX Electric Trailer Jack 7500LBs,Electric Jack with Waterproof Cover
Rated capacity: 7500 lb
Lift: 9 inch retracted to 32 inch
Power: 12V DC hard wiring
Pros
- 7500 lb rating suits a heavy tongue and a high hitch ball
- Remote control makes leveling on uneven campsites easy
- Internal circuit breaker auto-resets after cooling
- Hand crank included for power outages
Cons
- Screw-drive failures reported on loads well below the rating
- Rocker switch fits loose and can stick
- Lift speed is slower than competing electric jacks
The KYX 7500 lb jack reaches 32 inches fully extended and retracts to 9, with multi-level height adjustment in between. Carbon steel with an anti-rust coating and a waterproof cover handle outdoor storage better than an uncovered motor.
Owners like the remote for a specific reason: lowering the coupler onto the ball from the truck seat on a sloped driveway, and leveling once the trailer is parked on uneven ground. The internal circuit breaker protects the motor on overload and resets after cooling instead of blowing permanently.
Installation is a three-bolt swap if your tongue matches the standard pattern, and it uses 12V DC hard wiring. The hand crank is included, which is the fallback when a dead trailer battery leaves you at the ramp.
The most serious complaint we found is not about speed or missing hardware. Several owners report screw drive failures at loads well below the advertised rating, and a loose rocker switch that sticks. The wiring also comes without battery terminal connectors and can be too short to reach the battery without an extension.
Is a 7500 lb jack worth it on a mid-size trailer?
If your calculated tongue weight is under about 1,500 lb, you are buying speed you will not use. It earns its rating on loaded equipment trailers, dump trailers and fifth-wheel tongues where the coupler sits high and the load is real.
What hardware is missing from the box?
Mounting bolts, wire lugs and battery terminal connectors are not included. Budget a short list of fasteners and a fused 12V run before the jack goes on, or the install stops halfway.
8. RAM EJ-3520-BBX Electric Jack with Drop Leg, Cheap Extra Height
RAM Trailer Products EJ-3520-BBX 3,500 lb. Electric Trailer Jack with Drop Leg – Black
Lift capacity: 3500 lb
Drop leg: 7.5 inch
Power: 12V with crank override
Weight: 23.9 lb
Pros
- Plug-and-play install in roughly 15 to 25 minutes
- Drop leg adds 7.5 inch of adjustment
- Frame grounds through supplied star washers so only one positive lead is needed
- Bright LED for night hookup
Cons
- Raise and lower speed is on the slow side
- Lighter-gauge tubing and steel than many OEM jacks
- Slight wobble reported at full extension by some owners
The RAM EJ-3520-BBX lifts 3500 lb with a minimum height of 9 inches and a maximum of 18, and the drop leg adds 7-1/2 inches on top of that. The extra leg range is what makes it useful on a high A-frame where the coupler sits well above the original position.
Grounding is handled by the supplied star washers biting into the frame, so only one positive lead needs routing to the battery. That removes the most common wiring mistake on a tongue jack upgrade, and most owners finish the install in 15 to 25 minutes.
A bright LED covers night hookup, hardened steel gears carry the load, and a crank handle is included for manual override if the power goes. It is a straightforward upgrade from a manual jack for someone who wants electric convenience without rewiring the whole trailer.
The honest limits are material gauge and speed. Owners report lighter-gauge tubing and steel than the jacks they replaced, some notice a slight wobble at full extension, and the raise and lower speed draws complaints. A minority also report defective examples or a poorly molded inline fuse holder, and bolts and connectors are not in the box.
Is the drop leg enough for a raised A-frame?
Combined with 18 inches of powered travel, the 7-1/2 inch leg gets you close to a high fifth-wheel coupler height without a riser block. Measure from the ground to your coupler before you order, and again with the trailer loaded.
What breaks first on this jack?
The fuse holder and the switch are the reported weak points, not the screw drive. If you size the inline fuse correctly on install, most of those complaints disappear.
9. LIBRA 3500 lb Electric Tongue Jack, Sealed Against Rain
LIBRA 3500lbs Electric Power A-Frame Tongue Jack for Trailer & Camper 26041
Lift capacity: 3500 lb
Lifting range: 14 inch
Drop leg: 8 inch, 5 step
Power: 12V with 55 inch cord
Pros
- One-piece motor cover and stainless hardware shed water
- Stroke runs 20 percent faster than typical designs
- 5.5 inch foot plate with drainage holes spreads load on soft ground
- Detachable emergency hand crank included
Cons
- 1-3/4 inch tube will not accept a 2 inch jack wheel
- Hardware is basic zinc rather than stainless
- Single black power lead is easy to misidentify
The LIBRA 3500 lb is the one to look at if your trailer lives near salt water. A one-piece motor cover sits over the top of the unit, and the screws and bolts outside that cover are stainless, so water intrusion and corrosion stop where they usually start on an exposed motor.
LIBRA claims a stroke 20 percent faster than typical designs, and the 8 inch five-step drop leg plus an oversize 5.5 inch foot plate give a wide leveling range. The foot plate has drainage holes, which keeps water from sitting under the leg on a wet ramp.
Owners replacing a failed OEM jack report it seals better than what came out of the trailer and that the wiring swap is simple, using a 55 inch power cord and 12V operation. It also clears a truck tailgate on trailers where the original jack did not.
The 1-3/4 inch outer tube is the practical catch: it will not accept a 2 inch jack wheel if you want to roll the tongue instead of foot-jacking it. The included hardware is basic zinc, and a single black power lead with no ground wire is easy to misidentify during a hurried install.
Is this jack sealed enough for a boat ramp?
It is the most defensible choice on this list for marine use because the cover is one piece and the exposed hardware is stainless. Nothing on a tongue jack is truly waterproof, so rinsing the unit with fresh water after a day in salt is still worth doing.
Can it take a two inch jack wheel?
No. The tube measures 1-3/4 inches, so a 2 inch wheel will not fit. Use the 5.5 inch foot plate for soft ground instead of a wheel.
10. YOMILINK 5000 lb A-Frame Jack, the Manual Jack Owners Rate Highest
YOMILINK 5000 lbs A-Frame Trailer Jack, 15″ Lift, Adjustable Drop Leg
Lift capacity: 5000 lb
Height range: 23.2 to 45.6 inch
Power: side wind crank
Weight: 14 lb
Pros
- Highest average rating in the group among manual jacks
- Grease nipple included
- a detail budget jacks skip
- 5 level drop leg and wide height range make leveling easy
- Galvanized tubes resist corrosion
Cons
- Non-removable bottom plate complicates installs with low clearance
- Included bolts are very short
- Manual operation only
The YOMILINK carries 5000 lb on a high carbon steel body with galvanized inner and outer tubes under a powder finish. All studs are Grade 5 or GB 8.8, which is a stronger fastener spec than most budget jacks bother to publish.
The side wind crank handle is described as fast and smooth, and it replaces stiff original jacks without complaint. The five-level drop leg plus a 23.2 to 45.6 inch height range make it easy to level a trailer on a sloped site, and drainage holes in the base keep moisture out.
A grease nipple is included, and that small detail turns maintenance from a guessing game into a ten-second job. Owners consistently report it feeling noticeably heavier duty than the jack it replaced.
Two install caveats. The bottom plate does not remove, so the two-piece shaft is hard to fit onto a tongue with very low clearance, and the included bolts are short enough that you may need longer fasteners. No warranty is stated.
Is 5000 lb manual enough for a fully loaded travel trailer?
On capacity, yes. The limit is your arms and the fact that a heavy tongue takes many crank cycles. If you hitch in the dark or on a slope, look at an electric unit instead.
Why does the grease nipple matter?
Manual jacks are the ones that need it. A few drops at the drive every season keeps the screw moving smoothly and is the difference between a jack that cranks quietly and one that binds.
How Heavy Is Your Tongue Weight?
Calculating tongue weight before you shop prevents both overspending and underbuying. Start with 10 to 15 percent of the trailer’s gross vehicle weight rating. For a 5,000 lb trailer that lands between 500 and 750 lb, and for a 10,000 lb trailer it lands between 1,000 and 1,500 lb.
Then add for a weight distribution hitch. Because the load bars pull weight off the tow vehicle’s rear axle, the jack ends up lifting the tongue weight plus roughly half of that rear-axle weight. On a half-ton truck carrying 4,000 lb over the rear tires, that adds about 2,000 lb to what the jack sees. Owners on forums almost universally recommend oversizing here.
Here are the capacity bands we use when matching a jack to a trailer.
3,500 lb jack: tongue weight up to about 700 lb with no weight distribution hitch.
4,500 to 5,000 lb jack: tongue weight of 800 to 1,100 lb, or a 3500 lb jack plus a light weight distribution setup.
5,000 lb jack plus weight distribution hitch: tongue weight of 1,100 to 1,500 lb with a half-ton truck.
7,500 lb jack: tongue weight above 1,500 lb, loaded dump trailers, gooseneck and equipment trailers.
One safety note before you buy anything: a jack lifts the tongue and holds it during hitching. It is not designed to support a loaded trailer long term, so park on a tongue jack that has been sized correctly and keep the stabilizers down.
Electric vs Manual vs Hydraulic
Electric jacks win on effort and lose on electronics. A powered unit removes the arm work that heavy tongue weight demands, adds lighting for night hookup, and usually carries a manual crank as backup. The tradeoff is a 12V circuit, a fuse, a ground, and electronics that can fail after a few seasons in the weather.
Manual jacks win on simplicity. Nothing to wire, nothing to fail electrically, and the galvanized models in this roundup carry 5000 lb without complaint. They cost you effort on every hitch, which is why we see them chosen by people with light trailers and short driveways.
Hydraulic jacks sit at the top of the range and are the right answer for very heavy gooseneck and equipment tongues, but they cost far more and need a pump. If your calculated tongue weight is under 1,500 lb, a hydraulic jack is not where your money goes best. We covered the [floor jack alternatives for static lifting](https://www.kazsushibistro.com/best-floor-jacks/) if you need something for pure support rather than a tongue jack.
Trailer Jack Buying Guide
Static vs dynamic load ratings, the number most shoppers misread
Dynamic capacity is what the jack moves. Static capacity is what it holds once it is stopped and supporting the tongue. A label reading 5000 lb dynamic and 7500 lb static is not a 7500 lb lifting jack, and a shopper who reads it as one will size correctly and be better off, not worse.
For heavy tongue weight, compare your calculated load against the static figure, not the dynamic one. Only the POLESTAR on this list publishes both numbers, which is a good habit for the whole industry.
Mount type and drop leg
Bolt-on swivel mounts fit a standard triangular tongue pattern and are the easiest to change later. Weld-on mounts suit homemade frames and are strongest on a heavy build. Drop legs buy you vertical range: 4.5 to 8 inches across the electric units here, and 3 to 5 levels on the manual ones.
More levels means easier leveling on a sloped campsite, and drop legs add setup height when you are pushing onto a ball.
Travel and hitch height
Measure from the ground to your coupler with the trailer loaded, then check that retracted height plus stroke plus drop leg covers it. Electric jacks here run from 14 to roughly 24 inches of travel, and the widest range belongs to the VEVOR 7500 lb at 9.84 to 33.85 inches.
Failure modes and maintenance before you buy
Water gets into the motor housing and corrodes connections until the motor runs but the jack does not move. A working crank handle is the answer to that failure, so check that the one included actually fits.
Drop legs stick and get noisy if they are never greased, which is why the YOMILINK grease nipple is worth noticing. Fuse holders with poor molding and non-standard inline fuses cause mystery dead jacks, and fixed bolt patterns cause tailgate contact that no amount of adjustment fixes.
Frequently Asked Questions
What is the best trailer tongue jack for heavy tongue weight?
For most trailers running 800 to 1,100 lb of tongue weight, a 4,500 to 5,000 lb jack is the right fit. Add a 5000 lb dynamic and 7500 lb static electric jack or a 7,500 lb unit when you tow with a weight distribution hitch or carry over 1,500 lb on the coupler. Match travel to your hitch height and confirm the mount matches your A-frame hole pattern.
How much tongue weight do I need for a 5,000 lb trailer?
A 5,000 lb trailer typically carries 500 to 750 lb of tongue weight, which is 10 to 15 percent of the loaded weight. A 3,500 lb jack covers that comfortably. If you add a weight distribution hitch, add roughly half of your tow vehicle rear-axle weight to that figure before choosing a capacity band.
What size jack for a 10,000 lb trailer?
A 10,000 lb trailer typically puts 1,000 to 1,500 lb on the coupler, so a 5,000 lb jack is the minimum sensible choice. With a weight distribution hitch behind a half-ton truck, plan for 7,500 lb rated capacity so the jack can lift the tongue and the share of rear-axle weight the load bars transfer to it.
Are electric trailer jacks any good?
They are good, provided you size them above your tongue weight and wire them with a fused 12V feed and a solid ground. Most failures are water intrusion or an undersized circuit, not the drive itself. Every electric jack reviewed here includes a manual crank, so a dead motor is an inconvenience rather than a dead end.
My electric trailer jack will not go up or down. What is wrong?
Common causes are a blown or non-standard inline fuse, water in the motor housing corroding connections, a tripped internal circuit breaker that needs time to cool, or a rocker switch that has failed. Check the fuse first, inspect the connectors for green corrosion, and use the manual crank to confirm the screw is free before condemning the unit.
Which Trailer Jack Should You Buy?
The best trailer jacks for heavy tongue weight come down to one number: your calculated tongue weight, plus half your tow vehicle rear-axle weight if you use a weight distribution hitch. Buy the next band up from that figure.
Under 700 lb of tongue weight, the Lippert 285318 is the pick. Between 800 and 1,100 lb, the Husky HB4500 handles weight distribution bars quietly on 25 amps. At 1,100 to 1,500 lb, the Husky Super Brute 82022 or the POLESTAR 5000 lb covers the extra load, and the POLESTAR is the one that publishes its static rating honestly. Above 1,500 lb, go to a 7,500 lb unit such as the VEVOR HH7500. If you refuse to wire anything, the VEVOR 5000 lb manual carries the same rated capacity with zero electrical failure points, and near salt water the LIBRA 3500 seals better than anything else here.
Recheck those figures with your trailer fully loaded before you order in 2026, because a jack sized on an empty tongue is a jack sized too small.