




BYERNAUTO RV Slide Out Support Jacks are a pair of 5,000 lb-rated, adjustable U-shaped stabilizers designed to hold and steady camper slide-outs from 20" to 49" with drill or hand-crank operation.
When a trailer or motorhome slide-out wobbles, it can cause noise, wear on the rail, and an unsettled living space. These BYERNAUTO slide out support jacks add targeted reinforcement beneath the slide rail, reducing sag and lateral movement without attempting to lift the vehicle. Built from coated steel with a wide 5" base, the set is meant to be installed quickly and used regularly to protect the slide mechanism and improve onboard comfort.
The U-shaped support cradles the slide rail so weight is distributed along a stable brace instead of stressing the slide mechanism. That reduces bending and long-term deformation of the rail and frame while keeping the slide aligned.
Each jack telescopes from 20" to 49", giving the clearance needed for most slide-out setups. You can crank them manually for fine tuning or use a 20–24V cordless drill with the included adapter for faster deployment.
Each support jack is rated to hold up to 5,000 lbs, offering strong localized support under the slide-out. The broad base reduces sinking on gravel, dirt, or grass, improving overall steadiness even when the campsite surface is uneven.
Installation is designed for one person with common tools and the included hardware. The package contains the two support jacks, a drill adapter socket, a manual crank handle, mounting hardware, and straightforward instructions to speed assembly and safe use.
Who is this for? These BYERNAUTO slide out support jacks are for RV and camper owners who want to eliminate slide-out sway, reduce rail stress, and make their living area more stable. They suit travelers who routinely camp on uneven ground, seasonal RVers protecting slide mechanisms, and DIYers who prefer a tool-assisted or manual installation. Note: these supports are intended to stabilize the extended room, not to lift the entire vehicle.
Q: Can these jacks lift my RV?
A: No. They are designed to stabilize and support the slide-out, not to lift the vehicle chassis or replace a primary jack.
Q: Will they fit my camper's slide-out height?
A: Most slide-outs fit within the 20"–49" adjustable range; check your clearance and rail position before purchase.
Free shipping across Canada on every order, with no minimum. Orders are processed within 1 business day and standard delivery across Canada usually takes 2 to 5 business days after processing, with tracking by email. See the shipping policy.
Free 30-day returns. You have 30 days from delivery to start a return. Return shipping is free: email us your order number and we send a prepaid label. See the return & refund policy.
Not sure it fits? Email northtrailauto@gmail.com with your year, make, model and engine and we reply within 1 business day.












