Manual scissor jacks reduce movement when a travel trailer or fifth wheel is parked. Husky offers several versions that look alike when folded but differ in extended height, capacity, packaging and operating handles. The first decision is how far a jack must extend to reach the campsite surface without operating near its maximum height.

Factory jack and mounting illustrations

Husky's illustrated scissor-jack installation instructions show mounting plate orientation, drilling locations and how to operate a jack after parking. The Husky 7,500-lb scissor jack product sheet includes the 76862 pair, 72139 replacement jack and 76850 handle. Compare those factory drawings to the exact model before drilling or replacing a jack.

The photographs below show products available from UsedRVParts. Manufacturer drawings should be consulted for the mounting arrangement and safe operation.

Compare Husky scissor jack models

Part Series Quantity Rated capacity Maximum height
76862 Heavy duty Pair 7,500 lb each 24 in
72139 Heavy duty Single 7,500 lb 24 in
88121 Economy Pair 5,000 lb each 24 in
88124 Standard Pair 5,000 lb each 30 in
88134 Leveling Pair 5,000 lb each 20 in

The capacities above are the manufacturer's ratings per jack. A pair of 7,500-lb jacks is not permission to raise 15,000 lb of trailer weight. These are stabilizers, not substitutes for a service lift, axle stands, a tongue jack or the trailer's suspension.

See the individual jacks and replacement models

Husky 76862 — 24 in maximum

Husky 76862 heavy duty scissor trailer stabilizer jack pair product photograph

7,500 lb each rated capacity; pair.

View Husky 76862

Husky 88121 — 24 in maximum

Husky 88121 economy scissor trailer stabilizer jack pair product photograph

5,000 lb each rated capacity; pair.

View Husky 88121

Husky 88124 — 30 in maximum

Husky 88124 standard scissor trailer stabilizer jack pair product photograph

5,000 lb each rated capacity; pair.

View Husky 88124

Husky 88134 — 20 in maximum

Husky 88134 leveling scissor trailer stabilizer jack pair product photograph

5,000 lb each rated capacity; pair.

View Husky 88134

Replacement cranks and drill adapters

76850 speed handle: The Husky 76850 swivel crank handle is the manufacturer's matching replacement for its 7,500-lb heavy-duty scissor jacks. The 88123 crank handle is listed for its 5,000-lb family. These handles are listed separately because original kits vary in whether a handle is supplied.

88120 drill adapter: The Husky 88120 drill socket adapter fits scissor jacks with a ¾-inch hex drive and a drill with at least a ⅜-inch chuck. Use low speed and control the torque. Do not force a fully extended or retracted jack with a power drill.

72139 replacement jack: This is a single replacement for the heavy-duty 24-inch 7,500-lb series, whereas 76862 is the two-jack package. Check the original mounting plate and available space before replacing just one side.

Choose the correct extension height

Measure from the trailer's proposed mounting surface down to the ground when the trailer is already level on its wheels. Leave enough working extension that the stabilizer can make solid contact without reaching its mechanical limit. A longer 30-inch jack is not always preferable: check its folded height and its clearance from steps, tanks, plumbing and the road when travelling.

The Husky 76862 heavy-duty model folds to approximately 4-5/16 inches and extends to 24 inches. Its product sheet recommends approximately 20 inches of frame-to-ground clearance. The standard 88124 also folds to approximately 4-5/16 inches and extends to 30 inches. Verify the exact bracket and collapsed-height measurements before choosing a replacement for a restricted location.

Mounting and safe stabilizing

  1. Park on a firm, reasonably level surface, apply the parking brake as appropriate and chock the wheels. Level the trailer on its suspension and with its tongue or landing gear before stabilizing.
  2. Position jacks where the trailer frame is approved to receive the load, without interfering with tanks, pipes, wiring or suspension components.
  3. Use the precise Husky installation instructions for front and rear mounting angles, hole locations and mounting fasteners. Do not drill or weld onto a frame without the trailer manufacturer's approval.
  4. Extend the jacks to make firm ground contact and stabilize the parked trailer. Do not use a scissor stabilizer to lift wheels off the ground, change a tire or raise the trailer for service.
  5. Retract every stabilizer completely before towing and check ground clearance.

If you need a different stabilization system, see our Stromberg Carlson JSC-24 scissor jack parts reference for its separate model family. Do not assume replacement cranks or mounting hardware are interchangeable between brands.

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