What is the Retracted Height of the Tradesman 7K Hydraulic A-Frame Jack w/ Connection Kit?

Question

Question:

What is the retracted height from the bottom of the landing pad to the top of the mounting plate?

asked by: John R

0

Expert Reply:

Hey John, welcome back. From the bottom of the landing pad to the mounting plate is 12" on the Tradesman 7K Hydraulic A-Frame Jack w/ Connection Kit for Bumper Pull Dump Trailers item # ST47VR. It has a total 32" retracted length and will provide up to 24" of lift. This kit includes all hydraulic lines and fittings necessary to connect to a dump trailers hydraulic system.

What kind of trailer do you have?

expert reply by: Jerred H

0

ST47VR
(click to enlarge)

Jerred H.

3/4/2026

Hey John, how did the Tradesman 7K hydraulic jack work out for your dump trailer? I'm curious if the 12-inch height from the landing pad to the mounting plate fit your setup well. Your feedback could help others looking at the same jack.

Answer 1

Most jack manufacturers including Fulton, Bulldog and Dutton Lainson use slotted holes in the jack mounting flange. Three inches apart center to center is considered industry standard. Since the holes are slotted, there will be a bit of wiggle room…

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Answer 2

We aren't manufacturers of those parts, and we don't have the testing ability in house, so I reached out to a couple of our manufacturers to see what information they could provide to try and help. I reached out to my contact at Curt…

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Answer 3

Hey Suede, thanks for reaching out. We do offer a replacement Bottom Support Plate #JSP-100 which can be welded to the frame. The top support plate is generally part of the coupler, like part #CA-5210-B for example. I hope this answers your question.…

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Answer 4

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 5

Hi Paul, you’re definitely on the right track here, and I can help you narrow this down with confidence. With your tandem 3,500 lb Dexter axles and 33 inch spacing, both the Dexter EZ Flex part #K71-652-00 and the Lippert Road Armor part #LC53CK are…

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Answer 6

Hey Donny! For your Dometic Penguin/Brisk Air 15,000 BTU AC model B59516.711C0-MX, the correct soft start is the #DMC93JF. This is designed for Dometic Brisk II electronic air conditioner units with in-wall thermostats.

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Answer 7

That’s a great question Chadwick, and this is one of those situations where the change in technology really matters. The GE Appliances Low-Profile RV AC w/ Heat Pump part #GE26RR will replace your current ARC13AACBL2 setup, but it’s important to know…

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Answer 8

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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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

Hi Mark; the only jack like that is the Lippert Power Stance Electric Trailer Jack #LC89VR but it exceeds the amount you're looking to spend. If you're fine with one that only runs off of the 7-way then I recommend the etrailer Electric…

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Answer 11

The Kodiak Disc Brake Kit #K2HR10A11RERR is actually specifically designed to fit an AL-KO 10k #99 spindle, so this will be a perfect replacement. Though this does include the oil cap, it should be noted that it does not include the bearings or seal.…

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Answer 12

Hey Uriah, thanks for reaching out! The Tradesman Vaquero Self-Contained Hydraulic A-Frame Trailer Jack #ST86FR will work best if it's hardwired to a battery on your trailer, but you can also hardwire a 7-Way plug and lead like part #H20043 and…

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What is the Retracted Height of the Tradesman 7K Hydraulic A-Frame Jack w/ Connection Kit?

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