The EPA FT4/EU Stage IV engine employs field-proven cooled exhaust gas recirculation (EGR), a diesel oxidation catalyst (DOC), and selective catalytic reduction (SCR).
Piston design improvements allow particulate matter to be burned in the cylinder, so there's no need for a diesel particulate filter (DPF), saving service time and lowering operating costs.
Auto-idle automatically reduces engine speed when hydraulics aren't in use. Auto shutdown further preserves precious fuel.