PRO SERIES part description

Features & Benefits

  • 15' lift height suits mid- to heavy-duty trailers
  • Square tubing handles weight shifts and side loads
  • Drop-leg base for quick deployment on soft or angled ground
  • Manual crank for full lifting control
  • Strong welds resist torsional twist from cargo sway

Pro Series Square Jack

When your trailer needs solid support, the Pro Series Square Jack offers manual lift power with strength and reliability on the move or in storage. With a 15' lift range, it’s capable of handling tough loads in uneven conditions or unpaved lots. Square tube construction provides better side-load resistance than round jacks, and the welded drop-leg base keeps footing solid during uncoupling or leveling. Whether you’re changing tires or parking long-term, the Pro Series 1400850383 adds confidence to every trailer setup.

Don't know your part number?

Take a photo and we'll identify it!

Recommended Products