CARB investigation leads to nationwide recall of 500,000+ Cummins heavy-duty trucks due to defective SCR catalysts
31 July 2018
The California Air Resources Board (CARB) announced that 500,000 heavy-duty trucks manufactured by Cummins Inc. will be recalled due to excess emissions caused by defective catalysts. The cause of the excess emissions was purely mechanical—the faster-than-expected degradation of the catalyst—and not the product of a defeat device. The degrading catalysts... Read more →