Adjustable RV Slide Out Support Jacks 19ft to 47ft - Heavy Duty Design

In this review the reviewer looks at a pair of RV slide out support jacks meant to add stability to travel trailers and pop-up campers. The bottom line: these adjustable jacks are for RV owners who need a simple, sturdy solution to reduce slide-out sway and improve campsite comfort. The review finds the product delivers solid build quality and straightforward installation, making it a practical choice for owners who want reliable support without complex tools or permanent modifications.

Key Features

• Adjustable range: The jacks extend from 19 in to 47 in, allowing positioning to match most common RV slide-out heights for a secure fit.
• Heavy-duty construction: Built from alloy steel square tubes with a zinc powder-coating, these supports resist rust and provide durable strength for regular use.
• Universal U-shape plate: The 5.1 by 3 in u-channel bracket and 5 in circular base give stable contact and easy mounting under slide-out stabilizer bars.
• Simple installation: Setup requires pulling the tube, inserting the lock pin and using the included wrench to raise the bolt rod, so most users can install them quickly.
• Pack of two: Sold as a pair so customers can stabilize one slide-out section immediately without sourcing a second unit.
• Lifetime after-sale service: The brand offers replacement support if parts fail or are missing, which adds peace of mind for long-term ownership.

Who It's For

This product fits RV owners who regularly use slide-outs and want an affordable, portable way to reduce movement and increase safety at campsites. It is especially suitable for owners of travel trailers, fifth wheels, pop-up campers and utility trailers looking for a non-invasive stabilizer option that can be moved or removed as needed.

Those who need extreme load-bearing solutions or a built-in factory stabilization system should look elsewhere; while rated for robust use and made of heavy steel, these jacks are best used as supplemental support and paired with proper leveling blocks on soft or uneven ground.

Pros & Cons

Pros

• Solid build quality that customers report as reliable for steadying slide-outs.
• Wide adjustability covers a large range of slide heights from 19 in to 47 in.
• Corrosion-resistant zinc powder-coating extends service life in outdoor conditions.
• Package includes two jacks and a simple installation method with basic tools.

Cons

• Adjustability received mixed feedback from some users, so fine-tuning height may take patience.
• For best performance, customers should use wood or concrete leveling blocks under the base on soft ground, adding an extra step to setup.

Specifications

Brand	AUH
Adjustable height	19 in to 47 in
Capacity	Up to 5000 lbs (pair)
Base plate	5 in circular base
U-channel plate	5.1 in by 3 in
Material / Finish	Alloy steel square tube with zinc powder-coating
Package contents	2 camper slide out stabilizer jacks

Our Verdict

These RV slide out support jacks are a practical, good-value option for campers who want to decrease slide-out movement without permanent installation. Their heavy-duty construction, reasonable adjustability and included pair make them suited for most travel trailers and pop-up campers, though careful setup on soft ground is recommended for best results.

Frequently Asked Questions

Will these jacks fit my slide-out?
The jacks fit slide-out supports with required clearance within a 19 in to 47 in range and mount to U-channel style stabilizer bars.

Do they resist rust?
Yes, the alloy steel tubes are finished with a zinc powder-coating to improve corrosion resistance.

Are leveling blocks required?
While not required, using wooden or concrete leveling blocks under the base is recommended on soft or uneven ground for greater stability.