Swellisher 5th Wheel Tripod Stabilizer — Adjustable 35–55" King Pin Support, 5000 lb Heavy‑Duty RV Jack

The Swellisher Fifth Wheel Tripod Stabilizer is a heavy-duty, adjustable gooseneck support that secures your 5th wheel king pin and reduces trailer sway while parked.

If you own a 5th wheel trailer and want a simple, sturdy way to stop rocking and unwanted movement when parked, this Swellisher tripod jack offers a compact, high-capacity solution. Built from durable steel with a stable tripod body, it fits most standard king pin sizes and extends quickly from 35" to 55". The unit is designed for straightforward setup so you can position and fine-tune it in minutes.

How does this stabilizer reduce trailer sway and interior vibration?

The tripod design anchors under the king pin to absorb lateral motion and limit forward/back rocking when the trailer is unhitched. By adding a third bearing point beneath the gooseneck, it reduces the transfer of movement into the living space, making the interior quieter and more secure.

• 5000 lb rated capacity provides robust load support under the king pin.
• Tripod geometry spreads forces to minimize rocking and rotational sway.
• Heavy-gauge, weather-resistant steel resists deformation under repeated use.

Is installation truly quick and do I need special tools?

Most components come preassembled, and the stabilizer is engineered for simple positioning — installers commonly finish setup in about 10 minutes. Basic hand tools included or commonly found in a standard toolkit are sufficient for final adjustments, so no specialized equipment is required.

• Preinstalled parts reduce assembly time and complexity.
• Instruction booklet and necessary accessories included in the package.
• Standard wrenches or sockets handle the quick adjustment process.

Will this tripod fit my trailer and how does height adjustment work?

The Swellisher stabilizer fits most standard 5th wheel king pins and trailer geometries thanks to its telescoping center post. Height is adjusted between 35" and 55", allowing you to match the trailer's ride height and ensure a snug connection beneath the king pin.

• Adjustable range: 35" to 55" for versatile compatibility.
• Telescoping center column locks securely at the chosen height.
• Designed to clear common frame and skid plate layouts on 5th wheel trailers.

How durable is the stabilizer for long-term storage and outdoor use?

Constructed from high-quality steel with rust-resistant finishes, the tripod is built to withstand camping conditions and long-term storage. The materials and welds are selected to resist fatigue under load, making the unit suitable for seasons of use in varying weather.

• Weatherproof coating protects against corrosion and surface damage.
• Solid tripod base improves stability on gravel, dirt, or paved pads.
• Heavy-duty welds and components rated for a 5,000 lb load capacity.

Who is this for? The Swellisher Fifth Wheel Tripod Stabilizer is aimed at 5th wheel owners who want a compact, reliable method to stop trailer sway and vibration without complex installation. It’s a good match for frequent campers, seasonal RV owners, and anyone who parks their trailer for extended periods and wants a quieter, more stable living environment. If you need a portable, heavy-duty stabilizer that balances easy setup with strong load capacity, this unit fits the bill.