Replacement Trailer Jack Recommendation for 2003 Trailmaster Boat Trailer

Published 11/10/2026

Question:

Hello, I have a Fulton Magnum series swivel trailer jack from my 2003 Trailmaster boat trailer that is tired and needs replacement. It bolts directly to the frame and the mounting plate hole pattern is 3 x 5.5. I looked around on your site and couldnt find what I needed. I think 1500lb capacity would be more than enough, and I can send pictures if that would help. Can you help me please? Thank you!

asked by: Josh V

Expert Reply:

Hey Josh, we have jacks that will work great but we don't have anything that will fit the Fulton jack mounting bracket that you have because Fulton is no longer in business.

So the etrailer swivel jack part # MJ-1500B will be a great choice that uses a similar swivel mount, has a 1,500 lb capacity, and has a wheel caster as well. The mount can be bolted on to your trailer with included hardware or if you prefer you could have it welded in place. Are you in saltwater or freshwater most?

expert reply by: Jameson C

Josh V.

11/10/2026

Freshwater only here in Michigan. Do you have the dimensions of the mounting plate handy? Hole locations would be a bonus. Thank you!

Jameson C.

11/10/2026

@JoshV I don't have a way to upload a picture but here's a link to a diagram for the mounting brackets etc. https://images.etrailer.com/static/images/pics/q/u/qu457563_2_800.jpg