Nothing here was tested in a lab. Every line below is a synthesis of what verified buyers report in their own reviews, including the complaints, which is the part most roundups leave out.
| Product | Rated load | Rating | The catch |
|---|---|---|---|
| POLESTAR Electric Trailer Jack, 5000lbs Electric Power... | 5,000 lbs | 4.6 (849) | One reviewer says theirs failed after five months with no working customer support, and another warns the bolts are weak. |
| POLESTAR Electric Trailer Jack, 7500lbs Electric Power... | 7,500 lbs | 4.4 (50) | One reviewer says theirs broke shortly after install, and a replacement part still didn't fix it. |
| KYX Boat Trailer Jack, 2200 lbs Swivel Trailer Jack... | 2,200 lbs | 4.3 (181) | One reviewer says the mounting hardware feels flimsy and may need frequent tightening. |
| RVSHARK 5500 lbs A-Frame Trailer Jack, Heavy Duty... | 5,500 lbs | 4.0 (88) | It's rated for 5,500 pounds max, so heavier trailers need a bigger jack. |
| Kohree 3000 lbs Trailer Jack, Heavy Duty Bolt-on... | 3,000 lbs | 4.0 (57) | It only bolts onto trailer frames between 3 and 5 inches, so measure yours before ordering. |
All 5, in detail

POLESTAR Electric Trailer Jack, 5000lbs Electric Power A-Frame Tongue Jack
Reviewers say install is quick, often 20 minutes to an hour for a direct factory swap.
The catch. One reviewer says theirs failed after five months with no working customer support, and another warns the bolts are weak.

POLESTAR Electric Trailer Jack, 7500lbs Electric Power A-Frame Tongue Jack
Reviewers say install is remarkably easy, with several saying just three bolts did the job.
The catch. One reviewer says theirs broke shortly after install, and a replacement part still didn't fix it.

KYX Boat Trailer Jack, 2200 lbs Swivel Trailer Jack with 6 Inch Dual Wheels
Reviewers say it's high quality for the price, with several calling fitment and instructions clear and easy.
The catch. One reviewer says the mounting hardware feels flimsy and may need frequent tightening.

RVSHARK 5500 lbs A-Frame Trailer Jack, Heavy Duty Trailer Tongue Jack
Reviewers say it feels far more heavy-duty than budget jacks, with several calling it their new favorite.
The catch. It's rated for 5,500 pounds max, so heavier trailers need a bigger jack.

Kohree 3000 lbs Trailer Jack, Heavy Duty Bolt-on, Low-Profile Small, Swivel
Reviewers say installation is fast and simple, with several swapping out old rusty jacks in minutes.
The catch. It only bolts onto trailer frames between 3 and 5 inches, so measure yours before ordering.