Recommended Replacement for a Dutton-Lanison 1.5k lb Trailer Boat Jack

Question

Question:

I have a Dutton-Lanison 1500 lb jack on my Boatmate marine trailer that has failed no longer will raise/lower. The swivel base of the jack is welded onto the frame so Id like to stay with that brand and style but the jack has always felt inadequate. Do you know if I could upgrade to the DL22339 and still use the swivel base thats on the trailer? Are they the same? Hopefully that makes sense.

asked by: Brad R

0

Expert Reply:

Yes Brad, that absolutely makes sense.

There’s a good chance you can reuse the Dutton-Lainson welded swivel mount already on your Boatmate trailer.

The Dutton-Lainson # DL22339 uses a standard swivel-mount design, I attached a photo of the mounting holes on the bracket.

5-1/2 inches from left to right
2-3/8 top to bottom row

What style of boat are you launching from your trailer?

expert reply by: James D

0

Mounting Bracket
(click to enlarge)

Kelly

5/18/2026

I have the same product as you and LIKEWISE after 1 year of operation, it just will not lower down or go up! Yes, total bummer. I can still use it, but it's now locked in place. I will not buy this brand again because of this. In the future, I will purchase 100% aluminum if one is made as I can only guess that certain components on the inside rusted? Regardless, Dutton-Lainson has got some homework to do.

James D.

5/19/2026

@Kelly Sorry to hear that happened after only a year of use. Corrosion or lack of lubrication inside the screw assembly can sometimes cause jacks to seize up, especially in harsher environments or if they’re exposed to moisture regularly. Try taking weight off the jack completely, then spray penetrating oil around the top seal and screw area. Let it sit for a while and gently work the handle back and forth instead of forcing it. If it still won’t move after lubrication and unloading the jack, the internal acme screw or thrust bearing may have seized internally.

Answer 1

I spoke with my contact at Fulton and part number 9 is the gearbox which is not available as a replacement part. That part only comes with the complete assembly so you will need a new jack if that part is damaged or broken. A comparable replacement…

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Answer 2

The mounting plate on the Dutton-Lainson Round Swivel Jack part #DL22335 has bolt holes which are 7/16" diameter. The bolt holes are spaced 5-1/2" apart on center from top to bottom and then in 1" increments apart working your way from…

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Answer 3

Hello Nick, thanks for reaching out. The Dutton-Lainson Boat Trailer Jack #DL22335 may work for you. It has 7/16" holes. They are 5-1/2" apart across. There is 2-3/8" between the top hole and the hole under it. Then there is 1"…

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Answer 4

Replacement Mounting Hardware for etrailer and Ram Swivel Marine Jacks - 1,200 lbs and 1,500 lbs Item #MJ-1000B-MBB will actually be perfect for you. I checked the specs on the actual jacks that come with this hardware and it is basically identical…

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Answer 5

Since most valve stems are rubber they will start to dry rot and should typically be replaced at the same time you replace your tires. When looking for new valve stems you'll want to ensure that they're rated for the PSI of your tires and the…

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Answer 6

The Aluminum HWT Hi-Spec Series 03 Mod Trailer Wheel part #AM22627 is an excellent option which is an aluminium trailer wheel that measures 15" diameter x 6" wide and has a 5 on 4-1/2" bolt pattern. That said, we also have some other…

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Answer 7

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 8

Hey Jeff. There is definitely a correlation between weight and capacity. I've listed the weight of all three of the Power Mountain Tallboy Off-Road Bottle Jacks we have below: Power Mountain Tallboy Off-Road Bottle Jack - 7-15/16" to…

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Answer 9

To check the pins on the vehicle side 7-Way, you can use a circuit tester or the volt meter. The circuit tester will show you if a signal is coming through on the pin you are testing while the volt meter will tell you that and how much voltage is…

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Answer 10

Hello Ralph, thanks for reaching out. The etrailer Electric Trailer Jack #e23ZV will be a great option for you. The jack can be rotated to the side if needed. We have one of these jacks on our trailer here at the shop and I have seen it rotated and…

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Answer 11

I hear you on the frustratingly slow electric jacks Eric. The quickest one we have is the Phoenix Electric Trailer Jack item #UF38-944040. With a 1,000 lbs tongue weight, this jack extends 6" in 10 seconds and retracts 6" in 8.6 seconds.…

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Answer 12

I have included a dimensional drawing of the Dutton-Lainson Round Swivel Jack #DL22335 that shows the overall extended height of the jack at 40-5/8" tall. This measurement is from the bottom of the wheel to the top of the jack when extended.

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Recommended Replacement for a Dutton-Lanison 1.5k lb Trailer Boat Jack

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