BIG RED Weld-On Swivel Trailer Jack 2,000 lb Capacity 10½"–20½" Top-Wind Zinc-Plated

BIG RED's ATR39003R weld-on swivel trailer jack is a zinc-plated, heavy-duty pipe-mount jack that raises and lowers trailers up to 2,000 lb with a 10½" to 20½" adjustable height and a top-wind handle for smooth cranking.

This trailer jack is designed for secure, permanent mounting to 3"–4" trailer tongues using a welded pipe bracket. Built from zinc-plated steel for corrosion resistance, the unit folds up for travel and delivers a 2,000-pound (1 ton) lift capacity. The top-wind handle and fixed base make hitching and leveling straightforward whether you’re loading, unloading, or parking a boat, utility trailer, or small camper.

How does the weld-on swivel design improve trailer setup?

The weld-on pipe bracket creates a rigid, permanent anchor point on the tongue, so the jack sits firmly while you crank. Because the jack itself swivels and folds up, it stays out of the way while towing. This combination of secure mounting and fold-away convenience simplifies both installation and daily use.

• Permanently weld bracket to 3"–4" tongues for a stable mount
• Swivel action allows jack to fold up flat for travel and storage
• Top-wind handle stays accessible for fast raising and lowering

What are the height and capacity details I need to know?

The jack extends from a retracted height of 10-1/2" (267 mm) to a full extension of 20-1/2" (521 mm), giving flexible clearance for hitching at different trailer heights. Rated for up to 2,000 pounds (1 ton), it suits many small trailers, utility trailers, and similar loads. Always match the jack capacity to the trailer’s tongue weight, not the trailer’s gross weight.

• Retracted: 10-1/2" (267 mm) for compact storage while parked
• Extended: 20-1/2" (521 mm) for higher clearance when needed
• Lift capacity: 2,000 lb (1 ton); use according to tongue weight

How does the finish and construction affect longevity?

BIG RED finishes the jack with zinc plating to resist rust and corrosion, which helps it hold up in outdoor, wet, or salty environments. The steel construction and fixed base provide durability under repeated use. A limited 1-year manufacturer warranty covers defects in materials and workmanship.

• Zinc-plated steel resists corrosion for longer service life
• Fixed base ensures stable contact with the ground during lifting
• Includes a limited 1-year warranty for manufacturer defects

How user-friendly is the crank and mounting process?

The top-wind handle features an integrated grip designed for comfortable, efficient cranking so you can raise or lower the trailer quickly. Welding the bracket requires basic welding skills or a professional install, after which the jack slides onto the pipe bracket and secures for daily use. Once mounted, operation is purely manual and straightforward.

• Top-wind handle with grip for reliable, smooth cranking
• Slide-on jack mounts to welded pipe bracket and folds up for travel
• Simple manual operation—no power needed

Who is this for: The BIG RED ATR39003R weld-on swivel trailer jack is aimed at trailer owners who want a permanent, heavy-duty jack for boats, utility trailers, small campers, or work trailers with 3"–4" tongues and tongue weights within 2,000 lb. It’s ideal if you prefer a corrosion-resistant steel jack with an easy top-wind crank and a compact folded profile for safe towing. Opt for professional welding if you want a secure, durable installation that stays put through regular use.