Looking For Replacement A-Frame Jack Mount

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Question:

Do you have any sort of replacement a-frame jack mounts? I have a trailer I need to repair. Theres a 5 wide, 18 1/8 back, x 13 3/8 front, 5 wide, 2.5 deep, 3/16 steel bracket welded to the trailer with an A-frame jack mount flange in the middle thats broken and needs replaced.

asked by: Suede W

0

Expert Reply:

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. Comment below if there is anything else I can do.

expert reply by: Jesse M

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A Frame Jack Support Example
(click to enlarge)

Jesse M.

11/3/2025

Hey Suede, how did things go with the bottom support plate for your trailer repair? Did the new plate and coupler setup fit the way you needed? Your update could make it easier for the next person with a broken jack mount.

Suede W.

11/3/2025

@JesseM Unfortunately, we ended up fabricating both parts. Ordered a large drill bit, cut and welded some steel. It was less than ideal (because we couldn't just purchase what we needed and weld it in), but turned out excellent. We used some 1/4 in thick, 6" tubular steel, cut it in half, and cut a piece off for the bottom support plate. Carefully measured everything, mocked it up, drilled a hole for the jack, then three holes for the jack bolts. Welded some nuts on the other side of the jack bolt holes. We welded that to the trailer, cleaned it and painted it. Then drilled a hole for the bottom support, and welded it to the new jack support, and it's exceptionally sturdy. Much better materials than the original, and will likely last the full life of the trailer (and then some). Thanks, Suede

Jesse M.

11/4/2025

@SuedeW Wow, Suede — that’s some great craftsmanship! Sounds like a lot of work, but you nailed it and it really paid off with a super sturdy setup. That custom steel plate and weld job sound like they’ll hold up for years. Have you had a chance to test it out yet?

Suede W.

11/6/2025

@JesseM Yeah, it's in place and working great. It turned out better than I expected, but we were pretty meticulous. My son did all the welding, I came up with the design (straight forward really), did a lot of the cutting and drilling (my son helped with that too). We used a tiny drill press and a carbide bit to cut the main holes (on the top plate and support plate), and regular titanium plated drill bits for the bolt holes. We coated it in primer, and painted black to match the trailer. If you didn't know that we broke it, you'd never be able to tell it was a custom repair job.

See All (4) Replies to Jesse M. ∨

Answer 1

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…

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Answer 2

We currently have 3 different trailer jack support plates. I have included other dimensions in the included photos except for #BDSPB50 which was not available. #DL22763 is 1/8 inch thick. #BD003135 is 1/8 inch thick. #BDSPB50 is 1/8 inch thick. The…

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Answer 3

The Demco 6-Hole Adjustable Channel Bracket - Weld On - 12" Tall - 21,000 lbs #DM66134 is the weld on option for your trailer. There isn't a complete kit we offer, but it sounds like you are seeking the Demco 50-Degree A-Frame Coupler…

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Answer 4

Hello Jorge, thanks for reaching out. The etrailer Electric Trailer Jack #e55ZV should work great on your 1979 Airstream Excella 500. It uses a standard bolt pattern (3" apart on center) so as long as you can confirm this matches the current…

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Answer 5

Hey Jimmy, welcome back! The etrailer Electric Trailer Jack item #e55ZV has the standard A-frame jack mounting bolt pattern of 3" on center. The mounting bracket has slotted holes so there's some wiggle room too. The outer tube diameter is…

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Answer 6

Hey Kienan thanks for the picture. The only solution I have for you is the Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector item #C59236. This is a universal wiring harness that uses clamps instead of splicing and cutting wires.…

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Answer 7

Hello Bruce, yes it can. The etrailer Electric Trailer Jack #e55ZV can be rotated to the size and the bolts will still line up. We have this jack on one of our trailers here at the shop and I have checked and verified it can be rotated.

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Answer 8

Hi Nate; the Terran Axle Trailer Idler Hub Assembly #TX33VJ uses the standard 3,500 lb bearing combination and grease seal. It has a #L68149 inner and #L44649 outer bearing with a #58846 (10-19) grease seal. If you're looking for a replacement…

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Answer 9

For a 2013 Honda CR-V we have the Blue Ox Base Plate Kit - Removable Arms #BX2258 that will work well with your Blue Ox Tow Bar. I recommend using Loctite Threadlocker #LT37420 for this installation. For your vehicle wiring, I recommend the Hopkins…

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