The newest member in the HX lineup of crawler dozers is the SD9, which features a fully-electronic Tier III-certified QSX15 Cummins engine and an elevated Hi-Drive System. Other features include a variety of blade options, single shank ripper, forestry sweeps and guarding, ROPS, heated and air conditioned cab, and various track configurations. The six-sided cab is designed for all-around visibility and operator comfort, and excellent ergonomics. Blade configurations include straight, angled, semi-U and U. The HX dozers are available with Berco undercarriage components.