Deutz's new TCD 2.9 L4 is available in both normally aspirated and turbocharged versions (with or without a charge air intercooler) and equipped with cooled external EGR and common-rail high-pressure injection with 1600 bar (23 ksi). The ultracompact four-cylinder 2.9-L series inline engine covers a performance range from 25 to 56 kW (33 to 75 hp). The engine achieves its maximum torque of 300 N·m (220 lb·ft) at 1600 rpm. The compact engine, which was developed especially for very short and tight installations, offers a full range of customer-specific options, including efficient lateral auxiliary drives and mass balancing shafts. A modular exhaust gas aftertreatment system is tailored to the requirements of industrial machinery: the maintenance-free, cost-effective diesel oxidation catalytic converter (DOC) and particle oxidation catalytic converter (DOC + POC) cater for most applications, with a closed DPF option also available.