Kohree RV Slide Out Support Jacks 4PCS — Adjustable 20–49in Heavy-Duty Stabilizers

The Kohree RV Slide Out Support Jacks 4PCS are a four-piece adjustable stabilizer system that reduces slide-out sway and supports up to 20,000 lbs of distributed capacity for large fifth wheels and Class A motorhomes.

If your RV has long or multiple slide-outs, adding dedicated support jacks will cut down movement, protect seals, and make living aboard more comfortable in gusty or uneven conditions. These four Kohree jacks are built from heavy-duty steel, adjust from 20" to 49" in height, and can be operated with a power drill or a hand crank so you can set them quickly at campsites or on uneven ground.

How do these jacks reduce slide-out shake?

The Kohree set stabilizes the outer edge of slide-outs to limit bounce and lateral movement caused by wind, walking inside, or soft ground. By adding support points under the slide rails, the system transfers force away from seals and frame connections, improving longevity and comfort.

• Four-point support reduces sway compared with two-jack setups.
• Heavy-gauge steel construction resists flex under load.
• Adjustable length lets you place supports precisely where needed.
• Can lower interior vibration by up to an estimated 70% for heavy slide-outs.

What tools and methods are used to set the jacks?

Kohree designed the jacks for dual operation: use a socket with a power drill for fast deployment or the included hand crank for manual control. The drill option saves time when leveling multiple supports, while the hand crank gives fine adjustments when you need slow, controlled pressure.

• Socket-ready heads accept common drill drivers for quick lift/lower actions.
• Hand crank included for tool-free fine-tuning or low-battery situations.
• Smooth-threaded screws allow predictable extension without jerking.

Will these jacks fit my RV and conditions?

The jacks extend from 20" to 49", covering the clearance range for many fifth wheels and Class A coaches; they’re meant for slide-outs rather than bearing the vehicle’s full weight. Built for outdoor use, the steel parts provide durable support in wind, rain, and light snow when positioned under the slide-out perimeter.

• 20"–49" adjustable range suits a wide array of slide-out heights.
• Recommended for long slide-outs (over 12 ft) or multiple-room extensions.
• Not intended as a substitute for primary chassis jacks—don’t use to lift the RV.

How much weight can the set handle and what does that mean?

The complete four-piece set is rated for a combined capacity of up to 20,000 lbs, which refers to the distributed stabilizing support for large slide-outs. This capacity helps resist movement and reduces stress on slide mechanisms but is not a replacement for axle or chassis supports.

• 20,000 lb total capacity across four supports for heavy-duty stabilization.
• Designed to reduce wear on seals and motors by limiting lateral force.
• Use multiple jacks for long or multiple slide-outs to evenly distribute load.

Who is this for? Kohree RV Slide Out Support Jacks (4PCS) are aimed at full-time RVers, owners of large fifth wheels and Class A motorhomes, and anyone with long or multiple slide-outs who wants to cut interior vibration and protect slide mechanisms. If you frequently camp in windy areas, park on uneven terrain, or want a faster, more reliable way to stabilize your slide-outs, this four-jack kit gives heavy-duty support with flexible operation options to suit your setup.