John Deere 850K LGP crawler dozer is a low ground pressure track-type tractor designed for grading, dozing, and site preparation on soft or unstable terrain. The LGP configuration uses wider tracks to reduce ground pressure and improve flotation in mud, sand, wetlands, and other low-bearing conditions. The 850K platform is commonly used in construction, land clearing, road building, and utility work. It features a diesel powertrain, hydrostatic transmission, and a heavy-duty undercarriage built for traction and control. The model is part of John Deere's K-Series dozer line and is suited to finish grading and bulk earthmoving applications.