BYERNAUTO RV Slide Out Support Jacks — Pair 5,000 lb Capacity, Adjustable 19"–47", Zinc-Plated Alloy Steel

BYERNAUTO RV Slide Out Support Jacks are a pair of heavy-duty, adjustable stabilizers that support extended slide-outs up to 5,000 lbs each for safer, wobble-free camping.

When you extend an RV slide-out, the factory supports can leave the overhang vulnerable to movement and stress. These BYERNAUTO slide out support jacks are built to reduce wobble, distribute load, and protect slide-out frames from damage. Made from industrial-grade alloy steel with a rust-resistant zinc finish, the pair offers tool-free height control and broad compatibility across RVs, trailers, and campers.

How do these jacks reduce slide-out wobble and protect the frame?

The stabilizers provide a secure secondary support point under the slide-out rail to stop vertical and lateral movement. By taking load off the main slide-out mechanism, they lower stress concentrations that can lead to gaps, alignment issues, or long-term wear.

• Direct contact with slide-out rail via a U-shaped top for secure hold
• 5" circular base spreads weight and prevents sinking on soft ground
• Each jack rated to support up to 5,000 lbs for robust load capacity
• Pairs with blocking or pads for added stability on uneven surfaces

How easy is it to install and adjust these camper stabilizer supports?

Setup requires no power tools: place the jack under the slide-out rail, then raise it with the built-in hand crank until snug. The quick-lift hand crank design allows for controlled, precise height adjustments so you can level the slide-out without jerks or strain.

• Hand crank adjustment for tool-free operation and fine tuning
• Adjustable height range from 19" to 47" to fit most setups
• Rapid deployment so one person can set supports in minutes
• Works well with stabilizing blocks for uneven campsites

What materials and weather protection do the jacks use?

Construction uses heavy-duty alloy steel for strength and a zinc coating that resists rust and corrosion in outdoor conditions. That combination preserves structural integrity and appearance even with frequent use in wet or salty environments.

• Industrial-grade alloy steel body for high durability
• Zinc-plated finish for enhanced corrosion resistance
• Robust welds and hardware sized for trailer and RV forces
• Designed for dependable performance across seasons

Which RVs and trailers work best with these support jacks?

With their wide height range and sturdy base, these jacks suit many travel trailers, fifth-wheels, pop-up campers, and utility trailers. The U-shaped top is sized to engage common slide-out rail profiles, making them a versatile addition to most camping setups.

• Compatible with most RV slide-out rails and frames
• Useful for travel trailers, camper conversions, and utility trailers
• Great for soft-ground campsites when paired with base pads
• Sold as a two-piece set to support both ends of a slide-out

Who is this for: RV owners and camping enthusiasts who want a simple, durable way to stabilize extended slide-outs and protect their vehicle’s frame. These jacks are ideal for anyone who frequently boondocks, camps on soft or uneven ground, or wants to reduce wear on slide-out mechanisms without complicated installation or heavy tools.