CURT Weld-On Pipe-Mount Swivel Trailer Jack 5,000 lb — 15 in Travel, Zinc-Black Finish

CURT 28356 is a weld-on, pipe-mount swivel trailer jack that provides up to 5,000 lbs of support capacity and 15 inches of vertical travel for stable trailer positioning.

This heavy-duty CURT weld-on swivel jack is built for trailers that need a reliable, low-profile support solution that swings out of the way for towing. Designed with a pull-pin swivel, a welded foot plate for ground contact, and a zinc-plus-black powder finish, the 28356 balances durability and practical features. It’s intended for weld installation to a trailer frame and includes the raw pipe with a 5/8" hole for secure mounting.

How does the swivel feature make towing easier?

The pull-pin swivel lets the jack pivot up into a travel position so it doesn't contact the road or add wind resistance while towing. Locking the jack in either the lowered or stowed position is quick and positive thanks to the removable pin.

• Pull-pin design secures jack in travel or use position
• Swivels clear of hitch area to prevent damage during transit
• Simple manual operation—no tools required to lock/unlock

What are the load and lift capabilities of this jack?

This CURT pipe-mount jack is rated with a 5,000 lb support capacity and a 3,000 lb lift capacity, giving a robust safety margin for most medium-duty trailers. Vertical travel is 15 inches, with a retracted height of 16-1/2" and an extended height of 31-1/2" when using the top-wind handle.

• Support capacity: 5,000 lbs — ideal for heavier trailers
• Lift capacity: 3,000 lbs — for raising tongue to hitch/unhitch
• Travel: 15" for a wide adjustment range

How is the CURT 28356 protected against corrosion and wear?

The jack uses a combination of zinc plating and a durable black powder-coat finish to resist moisture, road salt, dirt and abrasion. These coatings extend service life and reduce maintenance compared with bare steel components.

• Zinc-plated components for sacrificial corrosion resistance
• Black powder coat for abrasion and weather protection
• Welded foot plate minimizes movement on rough surfaces

What does welding the pipe mount involve and what comes included?

This model is designed for a weld-on installation: the raw pipe with a 5/8" hole is included to be welded securely to the trailer frame. Because it’s a permanent mounting method, welding produces the most solid attachment for heavy-duty use.

• Includes weldable pipe with 5/8" mounting hole
• Weld-on installation ensures strongest attachment
• Top-wind handle included for manual operation

Who is this for: The CURT 28356 weld-on pipe-mount swivel jack is aimed at boat owners, utility and livestock trailer operators, RV and equipment haulers, or anyone needing a heavy-duty, permanently mounted tongue jack. Choose this model when you want a high-capacity, corrosion-resistant jack that stows clear for towing and provides stable ground support on uneven terrain.