Kohree RV Slide-Out Support Jacks 4PCS Flat Top — Adjustable Heavy-Duty Stabilizers for Fifth Wheels & Class A Motorhomes

Kohree RV Slide Out Support Jacks 4PCS are a four-piece, flat-top stabilizer system that reduces slide-out sway and delivers heavy-duty, adjustable support for large fifth wheels and Class A motorhomes.

When you need dependable steadiness for extended or heavy RV slide-outs, these Kohree supports add a secure contact point between the slide-out and the ground without relying on temporary wood blocks. Designed for larger rigs and seasonal living, the set replaces two-jack arrangements with four uniformly placed jacks to minimize bounce and movement during occupancy.

How do these support jacks reduce slide-out vibration?

The four-jack layout spreads load across multiple contact points so the slide-out moves less under wind, people and appliances. The flat-top design provides a full, stable bearing surface meaning you don’t need to wedge extra lumber or adapters beneath the jack tops.

• Four jacks distribute force evenly to limit flex and bounce.
• Flat top removes the need for separate blocks or adapters.
• Heavy-gauge steel construction resists bending under cyclic loads.
• Patent-pending U.S. design optimized for larger slide-outs.

What weight and size range can the Kohree jacks handle?

These slide-out supports are engineered for substantial loads typical of large fifth wheels and Class A coaches. The combined system supports high static loads while the adjustable range covers most slide-out heights encountered at campsites.

• Rated support capacity sized to accommodate large RV slide-outs.
• Adjustable height from roughly 20" to 49" to work on uneven terrain.
• Flat top spreads load, reducing point pressure on RV framing.
• Four-piece set provides better stability than common two-jack kits.

How quickly can I set up or store these slide-out stabilizers?

Kohree jacks are designed for fast deployment using a socket and power drill rather than slow hand cranks. That makes setup and breakdown faster when you arrive at or leave a campground, and reduces fatigue during frequent use.

• Quick socket-driven adjustment with a standard drill or impact driver.
• Fine height control for precise leveling of the slide-out sill.
• Durable threads and bearings built for repeat use in the field.
• Compact enough to stow without occupying large storage bays.

Are these jacks suitable for permanent support or structural lifting?

Kohree slide-out jacks are intended to stabilize and reduce shaking of extended rooms; they are not designed or certified to lift or permanently bear the full weight of a coach or trailer during repairs. Use them as stabilizers to protect structural components and improve comfort while the slide-out is extended.

• Designed to prevent slide-out motion, not to raise the entire vehicle.
• Use on level ground or with small grading adjustments for best results.
• Follow manufacturer guidelines for placement and maximum safe use.
• Works in combination with vehicle leveling systems, not as a replacement.

Who is this product for? Kohree RV Slide Out Support Jacks 4PCS suit RV owners who need durable, quick-to-deploy stabilization for large slide-outs—especially full-time RVers, owners of fifth wheels or Class A motorhomes, and campers who want to reduce bounce from wind, appliances, or day-to-day movement. If you frequently set up in windy campsites, live in your rig seasonally, or want a stronger, more even support solution than typical two-jack kits, this four-piece Kohree set provides a practical upgrade that protects your slide-out and improves in-unit comfort.