Sulythw SLAS-0126SLUS Adjustable RV I-Beam Stabilizer Jack

The Sulythw SLAS-0126SLUS is an adjustable I-beam mount stabilizer jack for RVs with exposed I-beam frames. Its tool-free, no-drill mounting and ratchet strap are intended to reduce movement inside a parked camper, but fit depends on frame access and the stated clearance requirements.

At a glance

Slides onto an exposed I-beam lip and tightens with a ratchet, with no drilling or tools claimed for installation.
Two adjustable legs and a ratchet strap are claimed to help reduce front-to-back and side-to-side movement.
The listing describes alloy-steel construction with a black powder-coated finish.

Price

$47.99Save 50%

Reference price: ~~$95.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Tool-free, no-drill attachment may suit owners seeking a removable stabilizer rather than a drilled frame installation.
The two-leg and ratchet arrangement is intended to address movement in more than one direction.
The stated fit criteria make the intended frame type and minimum ground clearance clear.

Technical specifications

10 specifications

Identity
Brand	Sulythw
Model	SLAS-0126SLUS

Dimensions and installation
Dimensions listed	1.5 x 1.5 x 28 inches
Weight listed	12 pounds

Materials and protection
Material listed	Alloy Steel
Finish	Powder Coated
Color	Black

Fit and use claims
Required frame	Exposed I beams on both sides
Minimum ground clearance	17 inches
Adjustable height claim	up to 35 inches

What to know before buying

Fit requires exposed I-beams on both sides and at least 17 inches of ground clearance. Confirm the trailer frame and available space before purchase. The listing claims adjustment up to 35 inches, but gives no load rating.
The listing describes the package component as an RV I-Beam Mount Stabilizer and separately claims two adjustable legs with a ratchet strap. The exact supplied quantities and included strap are not confirmed. Its lifetime after-sale service is a seller claim, with no detailed terms provided.

What’s in the box

Included

RV I-beam mount stabilizer

Who is it for?

A good fit for

RV or travel-trailer owners with exposed I-beams on both sides who want a clamp-on stabilizer without drilling.
Campers with sufficient ground clearance that need help limiting movement while people walk or move around inside.

Less suited to

RVs without exposed I-beam frame lips on both sides.
Buyers needing a stated load capacity or confirmed package quantities before deciding.

Sulythw SLAS-0126SLUS Adjustable RV I-Beam Stabilizer Jack · photo 2 — Additional product photo 2

Customer reviews on Amazon

5 / 5 · 10 ratings

5 stars100%100%
4 stars0%0%
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The listing shows only aggregate ratings, with a small number of ratings all in the top category. That is a positive but limited signal, not evidence about particular strengths, fit, durability or performance. Buyers should base suitability on the stated exposed-frame and clearance requirements.

Frequently asked questions

What RV frames is this stabilizer intended for?

The listing specifies exposed I-beams on both sides and at least 17 inches of ground clearance. Check the frame and clearance on your RV before ordering.

Does installation require drilling?

The listing claims it slides onto the I-beam lip and tightens with a ratchet, without drilling or tools.

How high does it adjust?

The listing claims an adjustable height up to 35 inches. It does not provide a load rating.

What is included in the package?

The included-components field names an RV I-Beam Mount Stabilizer. The feature claims also mention two adjustable legs and a ratchet strap, but do not clearly confirm exact package quantities or strap inclusion.