Sulythw RV Slide-Out Support Jacks — 16–36" Adjustable Stabilizers, 5,000 lb Capacity, Zinc-Coated Steel

Sulythw RV Slide Out Support Jacks are adjustable stabilizer jacks that reduce slide-out sway and add up to 5,000 lb of support per jack for safer, steadier camping setups.

If your camper, travel trailer or fifth wheel experiences bounce or sway when the slide-out is extended, these support jacks are designed to lock the slide frame into a firm, stable position. Built with a reinforced aluminum gearbox, steel construction and a rust-resistant zinc powder coat, the Sulythw slide-out stabilizers combine strength with corrosion protection for long service life. They install quickly, offer two lifting methods and fit most U-shaped slide frames so you can set up or pack down faster at each stop.

How do these jacks stop slide-out wobble?

The jacks counter lateral movement by bearing downward pressure under the slide-out frame, preventing the frame from rocking or flexing when people move inside. Each unit spreads the load through a wide U-top and secure tether pin to lock position during use.

• U-shaped top fits standard slide-out frames for stable contact.
• Tether pins lock the telescoping sections against creeping or movement.
• Aluminum gearbox and swivel nuts reduce play and improve reliability.
• Rated to support 5,000 lb per jack for high-capacity stabilization.

What installation and adjustment options are available?

Installation is straightforward and made to work whether you carry power tools or not. The jack can be raised or lowered using an electric drill for speed, or a side-wind handle for manual adjustment when cordless tools aren’t available.

• Dual-operation: drill-ready drive or side-wind hand crank for flexibility.
• Adjustable height from 16" to 36" to match a wide range of slide positions.
• Simple tether pin engagement to secure final height quickly.
• Recommended use with concrete or wooden leveling blocks for best footing.

Are these jacks durable enough for outdoor use and long trips?

Sulythw engineered these stabilizers with heavy-gauge steel and a zinc powder-coat finish to resist rust and abrasion from road and campsite exposure. The upgraded aluminum gearbox and added swivel nuts enhance longevity and reduce maintenance needs over time.

• Thick steel construction offers high structural strength for repeated use.
• Zinc powder coating protects against corrosion and chipping.
• Aluminum gearbox minimizes internal wear compared with basic designs.
• Lifetime after-sale support from Sulythw for replacements or issues.

Will these jacks fit my RV, trailer or camper model?

These slide-out support jacks are designed as universal stabilizers for many recreational vehicles and trailers. They pair well with RVs, travel trailers, fifth wheels, pop-up campers, utility trailers and light trucks, but they are not intended to replace primary frame jacks or support the vehicle’s entire weight.

• U-top accommodates most slide-out frame profiles and widths.
• 16"–36" stroke covers common slide-out travel distances.
• Suitable for RVs, trailers, ATVs, utility trailers and pop-up campers.
• Not meant to lift or fully bear the vehicle’s weight—use as anti-sway support.

Who is this for: The Sulythw RV Slide Out Support Jacks are ideal for RV owners, weekend campers and full-time travelers who want to reduce slide-out movement and make interior use more comfortable. They suit owners who need quick, tool-assisted setup or a dependable manual option, and anyone looking for corrosion-resistant hardware backed by lifetime customer service. Use them alongside proper leveling blocks for the most stable and safe slide-out support on any campsite.