Read more DEUTZ TCD 9.0 L4 Price on application Engine and exhaust aftertreatment (EAT) are optimized for highest total system efficiency and thus ensure lowest consumption and total operating cost. Thanks to SCR technology, the cooler sizes do not need to be enlarged in comparison with Tier 3 engines. Fuel consumption is reduced. (applicable for Stage EU V and IIIA) Consistent installation and connection dimensions of the engine facilitate the changeover of existing installations to the next stage of the emission laws. The engines have a modular exhaust aftertreatment system (EAT) with components from the DVERT® kit and optional configuration variants. This means a high flexibility in machine integration for the OEM.