CURT 28356 Weld-On Pipe-Mount Swivel Trailer Jack, 5,000 lb Capacity

In this review of the CURT 28356 weld-on pipe-mount swivel trailer jack, the bottom line is simple: it is a durable, no-nonsense jack for owners who need dependable support and easy tongue adjustment. Built for trailers and heavy-duty equipment, the jack's main selling point is its combination of a 5,000 lb support capacity with a swivel design that clears the way for towing. The review focuses on real-world use: installation, corrosion resistance, smooth operation of the top-wind handle and how the unit behaves when raising and lowering a loaded trailer or equipment.

Key Features

• High support capacity: The 5,000 lb support rating provides confidence for medium to large trailers and heavy equipment during storage and hookup.
• Lift capability: A 3,000 lb lift capacity means the jack handles significant tongue loads for most trailer maintenance and hitching tasks.
• Swivel design: The pull-pin swivel bracket allows the jack to swing up and out of the way for towing, eliminating the need to remove the jack before travel.
• Easy operation: The top-wind handle with an integrated grip gives smooth, controlled vertical movement over 15 in of travel for quick adjustments.
• Corrosion-resistant finish: Black powder coat and zinc-plated components protect the jack from water, dirt and road salt for longer service life.
• Weld-on installation: The raw steel pipe bracket is provided for welding directly to the trailer frame for a secure mount.

Who It's For

The CURT 28356 is aimed at trailer owners, farmers and contractors who need a robust, permanently mounted jack that stays out of the way while towing. It suits users who prefer a welded pipe-mount solution rather than a removable bracket and who value solid mechanical reliability over light-weight convenience.

Those who should look elsewhere include buyers who need a quick-detach jack or a bracket-mount model for frequent removal, or anyone who cannot perform or pay for a weld-on install. If corrosion resistance to marine environments is an overriding concern, consider a purpose-built marine-grade jack in addition to this unit.

Pros & Cons

Pros

• Sturdy 5,000 lb support and 3,000 lb lift for handling heavy trailer tongues with confidence.
• Swivel bracket with pull pin keeps the jack clear during towing without extra steps.
• Top-wind handle and integrated grip make raising and lowering straightforward and controlled.
• Durable black powder coat and zinc plating improve longevity against road elements.

Cons

• Weld-on installation requires welding expertise or shop work, so it is not ideal for quick DIY swaps.
• The unit is built for strength rather than light weight; it may be heavier than removable jacks.

Specifications

Brand	CURT
Support capacity	5,000 lb
Lift capacity	3,000 lb
Vertical travel	15 in
Retracted / extended height	16-1/2 in / 31-1/2 in
Mount type	Weld-on pipe bracket
Finish	Black powder coat and zinc-plated

Our Verdict

The CURT 28356 weld-on swivel jack is a practical choice for trailer owners who want a rugged, permanently mounted jack that swings clear for towing and handles substantial loads. For those able to commit to a weld-on installation, it delivers solid value through reliable construction, smooth top-wind operation and corrosion-resistant finishes, making it a sensible investment for heavy-use towing applications.

Frequently Asked Questions

Is this jack suitable for boat trailers?
It is suitable for many boat trailers, offering good support and corrosion resistance, though heavy marine use may benefit from additional marine-grade protection.

Can the jack be removed without cutting the weld?
No, this model uses a weld-on pipe bracket and is intended for permanent installation; removal would require cutting the weld or replacing the pipe section.

How much vertical adjustment does the jack provide?
The jack operates with 15 in of vertical travel, moving between 16-1/2 in retracted and 31-1/2 in extended.