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Getting your trailer leveled or lifted doesn’t have to mean endless cranking. This etrailer Boat Trailer Jack combines 15-3/8" of lift with 13-3/4" of drop leg adjustment for a total adjustment of 29-1/8". Just pull the pin to drop the leg, and you’ve already made up most of the distance to the ground. The 7-1/2" long x 3-3/4" wide footplate spreads weight evenly and keeps the jack from sinking into soft ground. It’s a big upgrade from wheeled jacks that twist or roll when parked on dirt.
Rain, salt spray, and road grime are no match for the clear zinc finish on this jack. It’s designed to resist rust and corrosion, even in harsh marine use, with a 100-hour salt spray rating. Heavy-duty steel construction keeps it solid for years of use, and the square tube design adds rigidity where round tubes can flex. Reviewers using it daily around saltwater ramps noted it stayed smooth and dependable well past the first season.
The side-mounted handle gives you room to turn without scraping your knuckles on the trailer frame. Its 7-7/8" handle radius provides smooth leverage, and the built-in grease zerk makes maintenance simple—just a few pumps when the handle starts to feel stiff, no disassembly needed. Owners love how easily it cranks, even under heavy load, and how the gearing feels tighter and smoother than cheaper replacement jacks.
No welding or drilling required—this jack bolts around frames up to 5" tall x 3" wide with the included mounting bracket and 3/8" hardware. The bracket height measures 7-1/4" retracted and 22-5/8" extended, giving plenty of range without hitting toolboxes or winch posts. Whether you’re replacing a worn-out OEM jack or adding support to a work platform or custom trailer, this 2,500-lb-capacity unit goes on cleanly and works right away.
This jack doesn’t swivel, twist, or ride on a weak pivot pin. It’s a fixed-mount square jack that stays rock solid when you set it down. The flat footplate keeps your load steady, whether you’re supporting a heavy trailer tongue or just leveling for drainage. Once you’ve used a solid square-tube jack like this one, you won’t go back to a wobbly wheel type again.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
I received it in 3 days. Very easy to install. Wish I would have found you sooner!!!!!!
Thank you.
Great but would be better with a couple drain holes in the base to prevent rusting
Easy to install. Rugged and easily adjustable. Second trailer I’ve used this jack.
So far so good. well crafted, Straight forward putting it on w/ 4 bolts. Importantly kept the boat upright. Shipping was quick and price was perfect. Now comes the test of time. Fingers crossed that with some grease from time to time i will get many yrs out of it.
The tongue jack is constructed very well. It lifts the trailer for my 25 ft boat effortlessly. It is low geared and easy to raise or lower the trailer.
Excellent!
great price and fast shipping
Great square jack. Easy bolt on, smooth easy crank, adjustable height with the drop leg. Handles the tongue weight effortlessly. Has a grease fitting for lubrication. Fast easy bolt up install.
It was great
Great heavy duty jack, no signs of corrosion after a year of use, still works smoothly and is greaseable. It's used on a heavy triple axle boat trailer that's galvanized so its bolt on construction was convenient.
My Square Jack / Ram Jack, lasted from April 2013 – about April 2019
I purchased a 2013 inshore Sundance DX22, the trailer came with a 2500 lb Ram Jack, that jack lasted till 2019 that’s around six years. I then came to etrailer.com to purchase a MJSQ-2500B Square Jack which is made by Ram Jack and is the same jack that came with my trailer.
my Ram jack was a 2013 (looked identical) to the etrailer Square jack that I ordered (see pics), the jack lasted till 2019 before the bottom rusted enough so that the shaft on the inside would not extend out or retract inward.
I live in Florida near the salt water, and launch in salt water all year round, so the jack does get salt spray and salt mist on it all the time, and sometimes the bottom of the jack is in the salt water, depending on the tide at the ramps.
Having had boats all my life, six years is a long time for a jack to last in salt water environment. Just to give you an idea of my saltwater environment, my Dodge Ram 3500 bumper and tail pipe rusted out before my jack did (see pics)
Not saying that this is normal or not, just that this was my experience with my Ram jack. Hope my new Ram jack lasts as long.
Pics show it mounted, I decided to spray some zinc galvanized paint on the bottom of the jack, just for a little added protection.,
As far as etrailer goes, from time to time I order parts from them, they never disappoint.
Thanks etrailer for my replacement Ram jack.
Delivery as promised! Quality jack! Super easy to install. We had ordered the same jack from Autoplicity and they screwed up our order big time. We should have known better! Old jack with wheel was on bent frame and wouldn't stay straight! Thank u we are very happy!
Helen
4/9/2020
Still great! We absolutley love it. Great quality.
Excellent delivery time!
Very quick and easy installation.
The jack feels well made the cranking is smooth.
Highly recommend this jack.
Christine C.
5/14/2024
After a year of use, the trailer jack is still working like a champ! Replacing a wheeled stand was a good call. The boat is too heavy to roll around and only increases the risk of rolling down the driveway.
Bolted right on, height adjustment is much easier than looking for a board or block to put under my old one, cranks easy, and I think this will be the last tongue jack I ever buy for my boat trailer.
Michael
10/15/2025
Still working great
Matched the jack I had on trailer. Easy install.
I ordered a dutton jack round you sent a ram from China and square. I don't like crap from china. I may never buy from you again also jack feels rough when cranking handle. I feel it should be a smoother turn always
Completely 100% satisfied with this flat bottom tongue jack. Works like a champ and is much safer than the Jack with the wheel that came on the trailer. Goes straight up and down and does not twist or bend like the original wheel bottom kaxl that came on the trailer.
Mike O.
6/22/2022
After a year Jack still works like new. This is the only one I would buy as I’ve had several in the past with the wheel that were unstable and unsafe. Remember to grease the fitting on the standard at least once a year.
Way better than any swivel wheel boat trailer jack. ALL boat trailers should come standard with this. I love it!
Jack is perfect for my boat trailer. It has the proper lift height to drain the deck water from boat compared to original trailer jack. It’s very sturdy and stable for this 25’ trailer. Great product.
Art
7/20/2020
Works well except the crank handle is very rusty and will need some sanding and paint.
I love it! I bought a used trailer for my 50 million pound pontoon ( OK, maybe 2500 lbs). The jack that came with it failed the fourth time I lifted it, and the tongue weight was so high that a concrete block I was using underneath shattered with the tongue resting on it. I replaced the broken concrete with a block of wood which is much better. The old jack also had a wheel which was utterly useless because of the trailer weight. This new jack installed easily and cranks smoothly and with almost no effort. Also has a grease zirc built in, but did not say how often to grease it. Very nice...........
Nathan
11/9/2019
Peachy keen. I am a happy dog
Great quality. Exact replacement of old corroded one used in salt for snowmobile trailer
Perfect fit! I didn’t want to drill new holes in my aluminum snowmobile trailer. Glad I researched and found this Jack to bolt in place of the old Jack.
The trailer jack is very nice and perfect. I'm replacing a 25yo jack which bolted through a 2x6in beam, on a 3-axle trailer, and using those original holes and position would not work out, so I attached to a suitable 2x4in crossbeam, as close to center as the OEM design was.
Well I dont know why I waited so long to replace my boat trailer jack. If you have a standard boat jack buy this one to replace it. Just drop the leg down and save 15mins cranking, this is almost one finger operation to raise and lower. Thanks for fast free shipping
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Scott
4/26/2025
Very nice jack. I highly recommended.