Improvements to the 850K crawler dozer include a Tier 4-Interim engine and dual-path hydrostatics. PowerTech 6.8L diesel delivers either 187 or 205 horsepower, depending on machine configuration, at 1,800 rpm. Noise levels in-cab have been reduced by 45 percent, using viscous cab mounts. Blade has a three-hole blade pitch with screw-type fine-tune adjustment for infinite settings. Dozer configurations: 850K OSD, 850K WT (Wide Track) OSD, 850K LGP (Low Ground Pressure) OSD, 850K LT (Long Track) PAT, 850K WLT PAT, and 850K LGP PAT.