Cummins will recall close to 500,000 medium- and heavy-duty trucks produced between 2010 and 2015 to correct a defective emissions control system in the engines.
The U.S. Environmental Protection Agency told Reuters the recall is the largest ever voluntary recall of trucks due to emissions problems. According to the article, “the catalytic reduction systems were found to be less durable than required and will be replaced.” The problem, resulting from a defective part, was discovered during a California Air Resources Board emissions test.
The recall would replace a faulty component that causes excess nitrogen oxides emissions. A spokesman for Cummins told Reuters the recall will occur in two phases, beginning with heavy-duty trucks this month and medium-duty trucks next March.