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6 Ton 3" Jack Extension

Safe Jack

  • $ 4200

PN: 37111
UPC: 854185005103

The 3-inch Bottle Jack Extension adds 3 inches of height to the available stroke of a bottle jack. That's like adding two layers of 2X lumber, only it's much safer and more stable! Multiple Extensions can be stacked to increase the height of the hydraulic cylinder (ram.) All of our made-in-the-USA Extensions and Lift Pads feature a solid steel shaft.

Safe Jack utilizes the Extension Screw Collar to create a secure engagement for the Extensions and Lift Pads, as well as to maximize the available stroke to an additional 1.5 inches. These premade Extension Screw Collars are measured specifically for the bottle jack brands we carry. If you have your own bottle jack you wish to use instead, you may need to purchase a Custom Extension Screw Collar. If you opt out of purchasing a Custom Extension Screw Collar altogether, the adapters may still work, but you will not achieve the additional 1.5 inches of stroke. The 6-ton adapters will fit over a bottle jack saddle diameter of 1.25 inches (31.75 mm) or less. If the hydraulic cylinder (ram) is significantly smaller than 1.25 inches, we advise against using the adapters without an Extension Screw Collar, as the point of engagement will be unstable.

Purchase a Custom Extension Screw Collar

Purchase a Safe Jack 6-ton Extension Screw Collar (Premade to fit the jacks we carry)

6-ton accessories not for use on Toyota OEM or telescoping jacks. 


  • Fits over bottle jacks with a saddle diameter of 1.25 inches (31.75 mm) or less
  • 2 inches of internal engagement
  • Steel construction
  • Durable powder coat finish
  • Compatible with most bottle jacks
  • Numerous stacking combinations with other Safe Jack Extensions & Lift Pads
  • Compatible with Safe Jack 12 & 20-ton Bottle Jack Ram Adapters
  • Made in the USA


Customer Reviews

Based on 26 reviews
Ben Wileman Jr (Orleans, US)
All is good


Robert Hall (Tulsa, US)
Great item

This was a great addition to our bottle Jack

Ronald Spears (McKinney, US)
Quality Product

Since purchasing the extensions, I have used these several times on my travel trailer and 3500 Silverado. Safe jack made the job so much easier. Well worth
the purchase price.

Steven Haase (Moab, US)
3” Jack Ext

Well built and works great!

Mark Kelsey (Ocean View, US)
Great Stuff

Great Stuff + Great Service = Happy Customers

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