Skip Content

Stabilizing Jack ,Ratchet,80000Lb close
close x

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.
How can we improve our Product Images?

Stabilizing Jack , Ratchet, 80000Lb

Price $742.00 / each

Please sign in or register to access lists

Confirm ZIP Code to determine availability.


Invalid Zip Code


Ship to: (Change)


Invalid Zip Code

  • Item # 3KR77
  • Mfr. Model # 3KR77
  • UNSPSC # 24101612
  • Catalog Page # 1546
  • Shipping Weight 141.0 lbs.
Country of Origin ChinaCountry of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Technical Specs

  • ItemTrailer Stabilizing Jack
  • Height Adjustment MethodRatchet
  • Static Load Capacity80,000 lb.
  • Adjustment Range39-1/2" to 51"
  • Lifting Capacity40,000 lb.
  • ColorYellow
  • Base Size14" Triangle
  • Top Area24" x 6"
  • MaterialSteel
  • Wheel Type8" x 1-1/2" Solid Rubber, 4" Front Wheel
  • IncludesCast Iron Ratcheting Handle With a Steel Extension Pipe
  • StandardsMeet OSHA Regulations

Compliance and Restrictions

  • This product contains a chemical that is regulated under California Proposition 65.

    Warning: This product contains a chemical known to the State of California to cause cancer.

    Warning: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm.


Jacks prevent up-ending semitrailers not connected to tractors, level trailers parked on slopes, and prevent landing gear from sinking into soft surfaces. High-strength steel. Flush-type zerk fitting for relubricating Acme screw. With reflective night-visible collar. Spin top models feature a manually turned Acme thread screw to raise and lower the jack for fast installation and removal.

Repair Parts

Displaying repair parts for model:
  • 3KR77

Alternate Products

Product Reviews Disclaimer:
Grainger is neither responsible for, nor does it endorse, the content of any product review or statement posted. Any statements posted constitute the statements of the poster and are not the statements of Grainger. The statements posted by Grainger employees with the Grainger employee badge represent the views of such employees and are not the statements of Grainger. Grainger makes no representations as to the appropriateness, accuracy, completeness, correctness, currentness, suitability, or validity of any product review or statements posted, including those posted by employees with the Grainger employee badge, and is not liable for any losses, injuries or damages which may result from any such product review or statements. Use of any linked web site provided in a product review or post is at the user's own risk.