In a recent article on Overdrive Online, James Jaillet wrote about a recent emissions recall affecting a large number of Cummins engines.
“Cummins has instituted a voluntary recall of roughly 500,000 model-year 2010-2015 engines, according to an announcement from the U.S. EPA. The recall involves faulty emissions systems components that cause the engines to fall out of compliance with federal emissions regulations.
The trucks and engines under the voluntary recall have seen degradation of their selective catalytic reduction systems, according to financial reports issued by Cummins. SCR systems are the exhaust aftertreatment components that use diesel exhaust fluid to curb emissions of nitrogen oxides and greenhouse gases. All manufacturers of engines for Class 8 trucks use SCR and DEF in their emissions-control systems. Engine makers adopted the technology in 2010 to meet that year’s emissions hurdles…”