Cummins QSK Series drilling engines to meet tier 4 final using integrated SCR aftertreatment

Cummins Inc announced that the QSK Series engines for land-based drilling will meet the 2018 U.S. Environmental Protection Agency (EPA) Tier 4 Final regulation using next-generation Selective Catalytic Reduction (SCR) aftertreatment. The Cummins Tier 4 Final drilling solution will meet or exceed the same uptime, reliability and durability that customers are currently experiencing with Tier 2 product. More »