Jack Boss 4-Ton Dual Piston Floor Jack on a white background
4 ton · 8,000 lb

4-Ton Dual Piston Floor Jack

The one for the truck. Full steel, 8,000 lb rated and the tallest reach in the range, so a three-quarter-ton pickup goes up with capacity left over rather than at the edge of the rating.

4 ton8,000 lb rated
20.5″Max lift height
85 lbJack weight
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Why this one

What this model does that the other four do not.

  • Capacity with margin

    A jack lifts one end of a vehicle, not all of it, so 8,000 lb is not the vehicle limit. It is the headroom that keeps a loaded pickup well inside the rating.

  • Reaches the working height

    20.5 inches gets a full-size truck high enough to put stands under the frame rail rather than balancing at the top of the stroke.

  • The weight is the trade

    At about 85 lb this is the heaviest jack in the range. It is a shop jack that lives in one place, not one you carry.

Specifications

Confirm final figures against the listing before ordering.

Rated capacity4 tons / 8,000 lb
Lift range3.9″ – 20.5″
Frame materialSteel
Jack weightAbout 85 lb
PumpDual piston
SaddleRubber pad, 360° swivel
CastersHeavy-duty swivel casters
Suited toFull-size pickups, vans, large SUVs

Questions about this jack

Short answers on fit, capacity and safe use.

Do I need 4 tons for a half-ton pickup?

Not strictly, but the margin is cheap. A 3-ton jack lifting the front of a loaded truck spends its life near the top of its rating; a 4-ton does not.

Will it fit under a car as well?

At 3.9 inches it fits under most standard cars, though not under a lowered one. If your fleet is mixed, this jack plus the aluminum model covers both ends.

How heavy is it to move?

About 85 lb. It rolls on its own casters easily enough, but lifting it into a truck bed is a two-person job.

Before the first lift: a floor jack raises the vehicle, jack stands hold it. Never put any part of your body under a vehicle resting on the jack alone.