RV Slide Out Support Trailer Stabilizer Jacks - Pack of 2

In this review the RV Slide Out Support Trailer Stabilizer Jacks are evaluated for owners of travel trailers and campers who want to stop slideout wobble without lifting the trailer. The bottom line: these two jacks deliver solid, repeatable support for slideouts thanks to a triangular threaded screw and M18 nut pairing and a 5,000 lb capacity per jack, making them a practical stabilizer for parked RVs where occupants move around. Installation is straightforward and the zinc powder coating helps them stand up to outdoor use.

Key Features

• Travel Range: The adjustable travel range from 15 to 26 in lets you match common slideout heights on most travel trailers without guesswork.
• High Capacity: With a max lift capacity of 5,000 lb each, each jack provides robust support to resist rocking and movement while people are inside.
• Durable Finish: Heavy duty steel construction and a zinc powder-coating improve resistance to rust and corrosion for longer outdoor life.
• Secure Threading: The triangular threaded screw and M18 nut are matched to provide stable, incremental adjustment and reliable holding under load.
• U-shaped Top: The 5.94 in x 2.95 in U-shaped tops fit most slideout frames and make positioning under the frame straightforward.
• Complete Kit: Ships as a pack of 2 quick lift stabilizer jacks so you can stabilize one slideout side without sourcing additional parts.

Who It's For

These stabilizer jacks are best for RV owners with travel trailers and campers that have slideouts and need to reduce sway when parked and occupied. They are aimed at users who already level their trailer and want an inexpensive, durable solution to stop lateral movement while people walk around inside.

They are not intended for someone who needs to level a trailer or lift it off its wheels; the manufacturer explicitly warns against using them to support the trailer weight or replace proper leveling jacks. If you need full leveling or lifting capacity for repairs, look for a dedicated leveling jack system instead.

Pros & Cons

Pros

• Easy to install and position under the slideout frame, often without special tools.
• Sturdy 5,000 lb capacity per jack provides noticeable reduction in wobble and movement.
• Corrosion-resistant zinc powder-coating increases longevity for outdoor storage and use.
• Pack of 2 gives a complete pair for a single slideout, offering good value.

Cons

• Not designed to level or lift the trailer off its wheels, only to stabilize the slideout while parked.
• The U-shaped tops may benefit from a 2x4 pad to avoid dents or frame paint abrasion during use.

Specifications

Travel Range	15 to 26 in
Working Range	11 in
Max Lift Capacity	5,000 lb each
Top Size	5.94 in x 2.95 in U-shaped
Construction	Heavy duty steel with zinc powder-coating
Included	Pack of 2 quick lift stabilizer jacks

Our Verdict

The RV Slide Out Support Trailer Stabilizer Jacks are a sensible buy for travel trailer owners who need to stop slideout wobble without complex installation or replacing existing leveling systems. They combine a high 5,000 lb capacity, matched triangular threading for stability, and a durable finish at a reasonable value, making them a practical addition to most RV exterior toolkits.

Frequently Asked Questions

Can these jacks be used to lift the trailer?
Answer. No, they are not designed to support the trailer weight or lift it off its wheels and should only be used to stabilize slideouts while the trailer is parked.

Do these fit most slideout frames?
Answer. Yes, the 5.94 in x 2.95 in U-shaped tops fit most frames, and it is suggested to place a 2x4 between the top and the frame to prevent damage.

Are they weather resistant?
Answer. The heavy duty steel construction with zinc powder-coating provides resistance to rust and corrosion for outdoor use.