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Ultra-Fab Stacker Jacks 4-Pack

Name: Ultra-Fab Stacker Jacks 4-Pack
Brand: Ultra-Fab
Price: 139.99 USD

Four-corner stack jacks in heavy steel — 6,000 lbs per jack, 17-inch range

Last reviewed: August 2026

rv_levelingground_placed

Four-pack of steel stack jacks for complete four-corner stabilization. Each jack handles 6,000 lbs with 17 inches of height adjustment. At 48 lbs total for four, these are heavier than Camco stack jacks but built with thicker steel tubing.

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Scritto originariamente da MyCargoRacks in inglese, tradotto e adattato per rilevanza locale. Contenuto ricercato e localizzato per lettori di Italia.

A colpo d'occhio

Dati rapidi

Leveling TypeJack Stand

Weight Capacity2722 kg

Max Lift Height43 cm

RV Type Compatibilitytravel_trailer, fifth_wheel

Perché questo prodotto

Perché il Ultra-Fab Stacker Jacks 4-Pack?

Four jacks for all four corners at 6,000 lbs each. The Ultra-Fab version uses heavier steel than Camco, which you can feel in the 48 lb total weight. That heft translates to less flex under load. The trade-off is obvious — they weigh six times what the Camco 4-pack weighs. If stability matters more than weight, these are the pick.

Specifiche dettagliate

Tutte le specifiche

Leveling Type	Jack Stand
Weight Capacity	2722 kg
Max Lift Height	43 cm
RV Type Compatibility	travel_trailer, fifth_wheel

Interlocking	No
Pieces Per Set	4
Anti-Slip Surface	Yes
Storage Bag Included	No

Material	Steel
UV Resistant	Yes
Freeze Resistant	Yes

Performance analysis

Insights for Ultra-Fab Stacker Jacks 4-Pack

How It Compares

vs. average in rv_leveling

Score Breakdown

Category Position

Price vs. score for all rv_leveling

Feedback della community

Cosa dicono gli utenti

Amazon

4.4/5

Basato su 431 recensioni

85% positivo6% negativo

I clienti dicono che il martinetto dà una buona stabilità al rimorchio: uno segnala che elimina oscillazioni e rimbalzi negli scomparti estraibili. Il prodotto è leggero e facile da riporre e offre un buon rapporto qualità-prezzo. I clienti hanno pareri contrastanti sulle dimensioni.

Sintesi tradotta. Le citazioni dei proprietari sono riportate nella lingua originale.

Pregi più citati

“Rapporto qualità-prezzo (20)”
“Stabilità (14)”
“Leggerezza (13)”
“Trasportabilità (5)”

Difetti più citati

“Dimensioni (5)”

“Woks fine: Got these for a neighbor who wanted to use then for their camping trailer. Later said they worked great, easy to store, lightweight and sturdy. After I got off the phone with them I thought that was the perfect call and decided to give this product a five star!”

· Leggi

“Stabilizer Jacks: These jacks work perfect for our travel trailer and 5th wheel. The whole camper would shake when walking around, with these jacks it just makes it more stable. You do still feel somewhat of movement but not near like it was without this product.”

· Leggi

“Very Strong Jacks: I stabilized my 36’ Lacrosse and these hacks are so easy to install even in tight spaces. An unstable RV can make you sick, try these, extremely easy to use and easily stored away”

· Leggi

“Work Great: They work great the only complain I have is that one of them bent when we placed them where we needed it but I think that may have been user error and not the actual product.”

· Leggi

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Domande frequenti

There is nothing to fit — these stand on the ground under the frame and adjust from 11 to 17 inches. Measure the gap between your frame rail and the ground at the spot you plan to use. If it falls outside that range, these are the wrong height class, not the wrong product.

6,000 lbs per jack — not per set. This is a set of 4, so the figure on the box may appear as a total; it is 6,000 lbs times 4, and no single jack does more than its own share. Match the per-jack number against the weight actually resting on that corner, which is a fraction of the trailer's weight, not all of it.

No — the manufacturer says so directly: "For stabilizing only — do not use for lifting." A stabilizer stops the trailer rocking when you walk around inside it. It is not a lift, and it is not a jack stand. Raising a trailer on stabilizers can bend the frame at the mounting point, and it puts the whole thing on hardware that was never rated to hold it up. Use a bottle jack at a designated lift point, then support the load on stands, and only then go underneath.

This is a set of 4. Four is the normal number for a travel trailer — one at each corner — so a pair covers one end and most owners end up buying two sets. Placing them just inside the corners rather than at the extreme ends does more to stop the rocking, because that is where the frame is stiffest.

Put something under the foot. A jack pad or a scrap of dimensional lumber spreads the load so the foot does not press into gravel, sand or soft turf. This is not about grip — a stabilizer is not trying to resist sliding, it is trying not to sink. On asphalt in summer heat, a pad also keeps the foot from leaving a dent you will be asked about.

Risposta di Michael Rollins, Chief Editor

Ultra-Fab Stacker Jacks 4-Pack

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Perché il Ultra-Fab Stacker Jacks 4-Pack?

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