The Case M Series 3 lineup includes the 580M, 580 Super M, 580 Super M+, 590 Super M and the 590 Super M+. These five models range in net horsepower from 79 to 109 with dig depths from 14 ft 3 in. on the standard backhoe to 20 ft 4 in. with the Extendahoe. All of these models feature Case Family IV engines with Tier III certification, as well as improved performance and serviceability.