Stage VThe road to zero emissions
The TCD 4.1, 6.1 and 7.8 engines in the current EU Stage IV version are fitted with diesel particulate filters (DPF). The TCD 2.9 and 3.6 are Stage IV compliant with what is called the DOC-only solution, i.e., only the use of a diesel oxidation catalyst (DOC). For both engines, a PDF is now available as an option, enabling them to be deployed in even very tightly regulated markets such as Switzerland.
As it currently stands, the industry is assuming the introduction of a particle concentration limit within the parameters of Stage V that can only be observed with the use of diesel particulate filters. This system is already available in the serial production of all Stage-V-ready engines, with customers thus receiving secured technology.