OTC HDJ20P 20 Ton Air/Hydraulic Service Jack

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OTC HDJ20P 20 Ton Air/Hydraulic Service Jack

Bring the versatility of air-assist operation to your shop’s lifting tasks with the OTC HDJ20P. Rugged steel frame members ensure confident lifting service. Low-profile stance and extended height add to versatility. Huge metal wheels and swivel casters roll effortlessly on internal bearings, providing trouble-free service life. Air-assist, foot or jack handle pumping action. 

Ideal size for safely lifting bucket trucks, school buses, city buses, garbage trucks and more.


  • Heavy duty hydraulic service for garages, equipment dealers, commercial service and more.
  • Welded hydraulic pump and cylinder construction provides increased strength and leak protection
  • Chrome plated ram for additional rust resistance
  • Wiper seals protect hydraulic system from contaminants
  • Front wheels with roller bearings and ball bearing-mounted rear caster wheels provide stability and easy maneuvering
  • Overload and bypass safety valves prevent use beyond rated capacity ad over extension of the ram
  • Handle can be locked in three positions from horizontal to vertical and has independent release knob
  • Uses shop air supply for lifting assistance
  • OTC Owners Manual for service jacks with training (operating) instructions
  • Meets all 5 ASME PASE-2019 safety standards for service jacks.
  • Limited Lifetime Warranty


  • Capacity | 20-ton
  • Air Pressure | 80–120 PSI
  • Lifting Range | 7-1/2" to 23.8"
  • Reach | 110.4"
  • Saddle | 6-1/2" dia., steel crown
  • Frame Height | 10.2"
  • Handle Length | 47-1/2", 3-position spring-assisted locking
  • Footprint | 18-1/8" x 61-3/8"
  • Casters | 6; 4 front fixed, 2 mid-body swivel
  • Product Dimensions | 71.5" × 21.5" × 17"
  • Product Weight | 631 lbs
  • Shipping Weight | 650 lbs


  • This item ships by truck. Additional shipping charges will apply to ship to a Non-Commercial Address. If Residential Delivery or Liftgate Delivery is needed, please select one of the choices above BEFORE adding to the cart!
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OTC Warranty