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Model 25066

The TriPod FASTJACK is the lightest kin pin stabilizer on the market offering full adjustability on each of the three legs. The TriPod FASTJACK slips on to the trailer's pin to help support the FASTJACK and uses gravity to assist in setup. No need to worry about uneven ground while setting up as each leg independently adjusts to the ground using the integrated ratchet system. Apply tension as needed and enjoy maximum stabilization.

  • No assembly required.
  • Ready to use straight out of the box.
  • Collapses to compact size to help with storage.
  • Large base pads for firm footing
  • Adjustable from 40 to 60 inches
  • Lightweight – 19 lbs
  • Rust inhibitive finish
  • Lockable to trailer pin with included pad lock
  • Limited One-Year Warranty

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• Kingpin Stabilizing Jack Brochure
• Kingpin Tripod FASTJACK Instructions




Model 25067 Gooseneck Adapter

Convert the TriPod FASTJACK to work with gooseneck trailers or 5th wheels with gooseneck converters. Replicates the 2 5/16” ball and slips into the gooseneck hitch allowing the TriPod FASTJACK to fasten to the trailer.



25033 (Standard)

25035 (Deluxe)

25037 (Gooseneck)

Model 25033 (STANDARD - No Extension Legs)
Model 25035 (DELUXE - With Extension Legs)

The King Pin Tripod Stabilizing Jack provides full side-to-side frame overhang stability and added front to rear stability. The deluxe model 25035 includes extension legs for longer reach when used at a campsite with uneven terrain. The standard model 25033 has no extension legs.

  • Sets up in seconds and simple to operate.
  • Foldable drive screw handles fold down for activating the jack and fold up when not in use or for storage.
  • Heavy duty construction yet lightweight and easy to store.
  • Large diameter base pads with heavy duty chain and hooks.
  • 25033 height range 40" to 52"
  • 25035 height range 41" to 68"
  • U.S. Patent 5,474,330

CLICK HERE for a list of retailers...

• Kingpin Stabilizing Jack Brochure
• Kingpin Tripod Instructions (25035)
• Kingpin Tripod Instructions (25037)


Gooseneck Tripod Stabilizing Jack
Model 25037

Same as the model 25033 but includes an adapter that secures the jack to the gooseneck. Works on 2 5/16” gooseneck ball only.

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Model 25001

The King Pin Extension Leg is designed to be used with the jack tube and/or support tube side of the standard model 25015A King Pin Stabilizing Jack when the jack is used at a campsite with uneven terrain. Two extension legs convert the standard model 25015A jack into a deluxe model 25030 jack. They are easy to install and adjust. All necessary hardware is included.


Model 25020

The King Pin Lock secures the Stabilizing Jack to the king pin. It is designed to deter King Pin Stabilizing Jack and fifth wheel travel trailer theft, but can also be used independently of the jack to deter trailer theft. The lock includes a die-cast body, chrome plated locking "U" bar and two keys.