Case upgraded its SR250 and SV300 skid steer and TR320 and TV380 compact track loaders with Tier 4-Interim engines. Each now has a Case 90-horsepower diesel using full high-pressure common rail design with cooled EGR, a diesel particulate filter, and diesel oxidizing catalyst. Rated operating capacities are 2,500 pounds for the SR250; 3,000 pounds for the SV300; 3,200 pounds for the TR320; and 3,800 pounds for the TV380. The engines have 12 percent more peak torque rise than the previous engines, Case says.